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NEC PowerMate VP75, User Manual

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NEC PowerMate VP75 User Manual Download Page 150

6-2 Minitower Repair

When disassembling the system unit, follow these general rules.

n

Disconnect all peripherals.

n

When handling boards or chips, touch the system unit frame to discharge static.

n

Do not disassemble parts other than those specified in the procedure.

n

All screws are Phillips-head, unless otherwise specified.

n

Label all removed connectors. Note where the connector goes and in what
position it was installed.

On completion of any reassembly, perform a power-on test (see “Check” in Section 2). If a
fault occurs, verify that the reassembly was performed correctly.

CAUTION:

When handling boards or chips,

ground yourself to release static.

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Summary of Contents for PowerMate VP75

Page 1: ...s discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product However actual performance of each such product is dependent upon factors such as system configuration customer data and operator control Since implementation by customers of each product may vary the suitability of specific product configurations and applications must be det...

Page 2: ... I O Addressing 1 8 System Memory 1 9 Interrupt Controller 1 10 Video Controller 1 11 Video Memory 1 12 IDE PCI Bus Backboard 1 13 ISA Bus 1 13 PCI Local Bus 1 14 PCI Auto Configuration 1 14 Parallel Interface 1 14 Serial Interface 1 15 Indicator Panel 1 16 Power Supply 1 16 Diskette Drive 1 16 Hard Disk Drive 1 16 Network Board 1 17 Multimedia Components 1 17 Quad Speed CD ROM 1 17 Sound Board 1 ...

Page 3: ...Operation Unpacking and Repacking 2 1 Setup 2 1 Minitower Setup 2 7 CD ROM Reader 2 12 External Multimedia Connections 2 13 Connecting the Speakers 2 13 System Configuration 2 15 How to Start Setup 2 16 How to Use Setup 2 16 Menu Bar 2 17 Legend Bar 2 18 Field Help Window 2 18 General Help Window 2 19 Main Menu Options 2 19 IDE Adapters 2 20 Memory Shadow 2 21 Boot Sequence 2 22 Numlock 2 23 Advan...

Page 4: ...rnal Options 3 1 Desktop Cover Removal 3 2 Minitower Top Cover Removal 3 3 Expansion Board s 3 4 Desktop Expansion Board Installation 3 5 Minitower Expansion Board Installation 3 7 Expansion Board Troubleshooting 3 8 System Board Options 3 10 OverDrive Processor Installation 3 10 OverDrive Processor Troubleshooting 3 13 SIMM Memory Installation 3 14 SIMM Upgrade Path 3 14 SIMM Installation 3 16 SI...

Page 5: ... and Device Cage Removal 3 30 Minitower 5 1 4 Inch Optional Device Installation 3 33 Minitower 5 1 4 Inch Diskette Drive Cabling 3 34 Minitower 5 1 4 Inch Hard Disk Drive Cabling 3 35 Completing Minitower 5 1 4 Inch Device Installation 3 36 Minitower Optional 3 1 2 Inch Hard Drive Installation 3 36 Hard Disk Drive Troubleshooting 3 38 Section 4 Maintenance and Troubleshooting Maintenance 4 2 Syste...

Page 6: ...sassembly and Reassembly 6 1 Top Cover Removal 6 3 Bottom Access Cover Removal 6 5 Expansion Board Removal 6 6 Front Panel Assembly Removal 6 7 Power Button Cover Removal 6 8 Blank Panel and Metal Cover Plate Removal 6 9 Speaker Assembly Removal 6 10 SIMM Removal 6 11 5 1 4 Inch Device Cage Removal 6 12 5 1 4 Inch Device Removal 6 13 3 1 2 inch Hard Disk Drive Removal 6 14 3 1 2 inch Diskette Driv...

Page 7: ...Expansion Bus Connector Pin Assignments A 13 Sound Board Pin Assignments A 15 Appendix B Specifications System Unit Specifications B 1 Power Supply Specifications B 3 Diskette Drive Specifications B 4 Hard Disk Specifications B 6 Appendix C CD ROM Reader Configuration Appendix D Sound Board Configuration Changing Hardware Settings D 1 MIDI Base I O Address D 3 Joystick Connector D 3 Audio Interfac...

Page 8: ... 2 33 2 15 Processor Speed Jumpers JP5 JP6 and JP7 2 33 2 16 Bus speed jumper JP10 2 34 2 17 Processor voltage jumper JP12 2 34 3 1 Desktop Cover Screws 3 2 3 2 Removing the Desktop Cover 3 2 3 3 Minitower Cover Screws 3 3 3 4 Removing the Minitower Cover 3 4 3 5 Desktop Expansion Slots 3 5 3 6 Inside Expansion Slot Screw 3 6 3 7 Removing the Inside Expansion Slot Bracket 3 6 3 8 Minitower Expansi...

Page 9: ...oard Enclosure 4 3 4 2 Removing the Mouse Ball Cover 4 4 5 1 Top Cover Screws 5 3 5 2 Removing the Top Cover 5 4 5 3 Expansion Slot Screw 5 5 5 4 Inside Expansion Slot Screw 5 5 5 5 Removing the Expansion Slot L Bracket 5 6 5 6 ISA PCI Bus Backboard Screws 5 7 5 7 1 2 Inch Drive Bracket Screws 5 8 5 8 1 2 Inch Diskette and Hard Disk Drive Screws 5 9 5 9 Indicator Panel Connectors 5 10 5 10 Power B...

Page 10: ... PowerMate VP75 Series Minitower Illustrated Parts Breakdown 6 25 A 1 System Board Layout A 1 A 2 Serial Interface J3 J10 A 3 A 3 Parallel Interface J15 A 4 A 4 Power Supply Connector J8 Pin Assignments A 6 C 1 Rear View of the Quadruple Speed Reader C 1 C 2 Quadruple Speed Reader Jumper Settings C 2 D 1 Jumpers on the Sound Board D 2 D 2 Base I O Address Settings of MPU 401 UART MIDI D 3 D 3 Joys...

Page 11: ...ath 3 15 3 5 SIMM Upgrade Problems and Solutions 3 17 3 6 Video DRAM Module Problems and Solutions 3 20 3 7 Optional 5 1 4 Inch Device Problems and Solutions 3 38 4 1 NEC Service and Information Telephone Numbers 4 1 4 2 System Error Messages 4 5 4 3 ISA NMI Error Messages 4 7 4 4 Problems and Solutions 4 7 4 5 Diagnostic Beep Codes 4 11 5 1 PowerMate VP Series Desktop Disassembly Sequence 5 1 5 2...

Page 12: ...ector J5 Pin Assignments A 8 A 10 IDE PCI Connector Pin Assignments J4 J7 A 9 A 11 SIMM Socket Pin Assignments A 10 A 12 ISA PCI Bus Backboard Connector Pin Assignments A 11 A 13 ISA Expansion Slot Pin Assignments A 13 A 14 Sound Board Signal Connector A 15 A 15 Audio Connector A 16 A 16 MIDI Joystick Connector A 16 B 1 System Unit Specifications B 1 B 2 Power Supply Input Requirements B 3 B 3 Pow...

Page 13: ...f NEC service information and telephone numbers that provide access to the NEC Bulletin Board System BBS FastFacts and Technical In formation Bulletins Included are desktop disassembly and reassembly procedures along with an illustrated parts breakdown NEC service and spare parts ordering information is also provided Section 6 Minitower Repair includes a list of NEC service information and telepho...

Page 14: ...cknowledge DC direct current DIP dual in line package DLAB Divisor Latch Address bit DMA direct memory access DMAC DMA controller DOS disk operating system DRAM dynamic RAM ECC error checking and correction EGA Enhanced Graphics Adapter EPROM erasable and programmable ROM EVGA Enhanced Video Graphics Array F Fahrenheit FAX facsimile transmission FCC Federal Communications Commission FG frame groun...

Page 15: ...parallel input output pixel picture element PLCC plastic lead chip carrier PLL phase lock loop p p peak to peak PPI programmable peripheral interface PROM programmable ROM QFP quad flat pack RAM random access memory RAMDAC RAM digital to analog RAS row address strobe RGB red green blue RGBI red green blue intensity ROM read only memory rpm revolutions per minute R read RTC real time clock R W read...

Page 16: ...and minitower hard disk network systems diskette drive hard disk network board n desktop and minitower multimedia systems diskette drive hard disk CD ROM reader multimedia components All configurations use the Intel 75 MHz Pentium processor and are Energy Star compliant The information in this manual applies to all configurations except where indicated This section provides an overview of the Powe...

Page 17: ... accommodate a 3 1 2 inch diskette drive a 3 1 2 inch hard disk 1 inch height and two accessible 5 1 4 inch storage devices 1 6 inch height The non multimedia hard disk systems ship with a 3 1 2 inch diskette drive and 3 1 2 inch hard disk drive leaving two accessible 5 1 4 inch storage device slots available for optional devices The multimedia sys tems ship with a 3 1 2 inch diskette drive 3 1 2 ...

Page 18: ...torage device slots can accommodate a 3 1 2 inch diskette drive two 3 1 2 inch hard disks and three accessible 5 1 4 inch storage devices 1 6 inch height The non multimedia hard disk systems ship with a 3 1 2 inch diskette and a 3 1 2 inch hard disk drive leaving three acces sible 5 1 4 inch storage device slots available for optional devices The multimedia systems ship with a 3 1 2 inch diskette ...

Page 19: ...s single inline memory modules SIMMs expandable to 128 MB n Peripheral Component Interconnect PCI graphics controller and 32 bit PCI bus supports 640 x 480 resolution with up to 16 8 million colors 800 x 600 with up to 16 8 million colors 1024 x 768 with up to 64 K colors and 1280 x 1024 with up to 256 colors 1 MB two 256K x 16 video dynamic RAM DRAM expandable to 2 MB supports Display Data Channe...

Page 20: ...edia MIDI joystick speakers microphone and headphone connectors on the sound board multimedia configurations only Table Section 1 1 lists the major chips on the system board See Section 2 Setup and Opera tion for a description of the system board s jumpers See Appendix A Connector Pin Assign ments for a list of the system board connectors Table Section 1 1 System Board Chips Chip Description P54C ...

Page 21: ...th to the next generation processor Secondary Cache The 16 KB primary cache is integrated in the processor The system board contains 256 KB of secondary cache external to the processor Cache memory improves read performance by hold ing copies of code and data that are frequently requested from the system memory by the proces sor Cache memory is not considered part of the expansion memory The cache...

Page 22: ...nternal video is disabled this range is mapped to ISA The system memory map in shown in Table Section 1 2 Table Section 1 2 System Memory Map Memory Space Size Function 000000 07FFFF 512 KB Conventional base memory 080000 09FBFF 128 KB Extended conventional base memory 09FC00 09FFFF 1 KB Extended BIOS Data 0A0000 0BFFFF 128 KB On board video memory 0C0000 0C7FFF 32 KB On board BIOS 0C8000 0E7FFF 1...

Page 23: ...eeds are reduced putting the computer in the suspend mode n Blanks out the monitor Puts the video controller into suspend mode The vertical sync clock and blank signals to the monitor are disabled n Forces the IDE devices into stand by mode n A suspend command is sent to the IDE devices which put the devices into a stand by mode I O Addressing The processor communicates with I O devices by I O map...

Page 24: ...ations port 2 0376 Secondary IDE channel command port 0377 Secondary IDE channel status port 0378 037F Parallel port 1 03BC 03BF Parallel port 2 03C0 03CF Video Graphics Array VGA compare registers 03E8 03EF Serial port 3 03FO 03F5 Diskette channel 1 03F6 Primary IDE channel command port 03F7 write Diskette channel command port 03F7 bit 7 Diskette change channel 1 03F7 bits 6 0 Primary IDE channel...

Page 25: ...n the system board Different size SIMMs may be intermixed Each SIMM is inserted into a socket or bank The system board s four SIMM sockets are as signed as banks 0 through 3 For non multimedia configurations the standard 8 MB of memory is installed in bank 0 The multimedia configurations have two 4 MB SIMMs installed in banks 0 and 1 See Section 3 Options for installation instructions and SIMM mem...

Page 26: ...s have been added for optimizing performance in computer graphic intensive applications and graphical user interfaces GUI A variety of industry standard 32 bit local bus interfaces are integrated on chip The key is that local bus interfaces are 32 bit wide Included in the video controller are cost saving features such as an integrated palette DAC and clock synthesizer along with integrated support...

Page 27: ... 16 8 million colors 800 x 600 with up to 16 8 million colors 1024 x 768 with up to 64 K colors and 1280 x 1024 with up to 256 colors Table Section 1 5 lists the resolutions available with the installed video memory Table Section 1 5 Video Resolutions and Frequencies Resolution Memory Required Color Video Clock Hz Horiz Sync KHz 640 x 480 1 MB 256 60 31 5 640 x 480 1 MB 256 72 37 0 640 x 480 1 MB ...

Page 28: ...70 44 5 800 x 600 2 MB 16 7M 72 48 0 1024 x 768 1 MB 256 87 i 35 5 1024 x 768 1 MB 256 60 48 4 1024 x 768 1 MB 256 66 53 9 1024 x 768 1 MB 256 70 56 1 1024 x 768 1 MB 256 72 57 9 1024 x 768 1 MB 256 76 61 4 1024 x 768 2 MB 65K 87 i 35 5 1024 x 768 2 MB 65K 60 48 4 1024 x 768 2 MB 65K 66 53 9 1024 x 768 2 MB 65K 70 56 1 1024 x 768 2 MB 65K 72 57 9 1024 x 768 2 MB 65K 76 61 4 1280 x 1024 1 MB 16 87 ...

Page 29: ... assignments are provided in Appendix A PCI Local Bus The industry standard PCI bus is a highly integrated I O interface that offers the highest perform ance local bus available for the Pentium processor The PCI bus supports burst modes that send large chunks of data across the bus allowing fast displays of high resolution images The high bandwidth PCI bus eliminates the data bottleneck found in t...

Page 30: ...locations for the parallel interface connector are shown in Appendix A NOTE Any interrupts used for the built in parallel port are not available for ISA parallel ports Table Section 1 6 Parallel Port Addressing and Interrupts Starting I O Address Interrupt Level Port 378 IRQ05 LPT1 278 IRQ05 LPT1 or LPT2 3BC IRQ05 LPT1 or LPT2 378 IRQ07 LPT1 278 IRQ07 LPT1 or LPT2 3BC IRQ07 LPT1 or LPT2 Default fo...

Page 31: ... the front panel and contains the power lamp hard disk drive busy lamp and suspend button The indicator panel electrically attaches to the system board through connector J11 suspend connector J14 hard disk drive busy lamp connector and J16 power lamp connector POWER SUPPLY The power supply is mounted inside the system unit It supplies power to the system board op tion boards diskette drives hard d...

Page 32: ...e available storage slot for an optional 5 1 4 inch device 1 6 inch height See Section 3 Options for installing an optional hard disk drive Specifications for the diskette drives are provided in Appendix B Specifications NETWORK BOARD Some systems are configured with a network board The network board provides three jacks for connecting the system to the local network The network board is a 3COM 16...

Page 33: ...at comes with the computer The sound board uses 16 bit DMA data transfer and has software addressable IRQs and DMAs for versatility External connectors accept speakers or headphones a microphone stereo input and a musical instrument digital interface MIDI or joystick attachment The speaker jack offers a four watt RMS channel amplifier The joystick port allows a full duplex MIDI The advanced freque...

Page 34: ... The PS 2 style keyboard connector pin assignments are given in Appendix A Connector Pin Assignments MOUSE A PS 2 compatible mouse is standard equipment for the system The mouse has a self cleaning mechanism that prevents a buildup of dust or lint around the mouse ball and tracking mechanism Periodically the mouse ball must be cleaned See Section 4 Maintenance and Troubleshooting for information o...

Page 35: ...lls you whether a board supports shared resources If an ISA board does not support shared resources and a Plug and Play board is not aware that the ISA board is using the same resource it has selected an ISA Configuration Utility ICU is need The ICU is used to eliminate the guess work from the configuration procedure Although most Plug and Play boards come with an ICU an ICU can be obtained from t...

Page 36: ... word processors CD ROMs printers operating systems graphics boards modems etc Manageable products or components can come with the system or be added later Each component supplies information to the MIF database by means of a MIF file that contains the product s pertinent management information CI Module The CI module is a Windows Direct Interface application provided by NEC Technologies The modul...

Page 37: ...se a component n View Component Detail to review the selected component s details n View Group Detail to review the selected group s details n View Attribute Detail to review the selected attribute s details Upon exiting the Browser the program saves the current viewing configuration The next time you use the Browser it restores all the viewing screens to the last known position Usage To start the...

Page 38: ... Information 1 23 n Look at the autoexec bat file to see if the line DIR WIN16 BIN NECDMI EXE is present n Make sure the file NECDMI DAT is located in the WIN16 BIN subdirectory n Check that NECCI EXE is running ...

Page 39: ...timedia configurations include the system unit keyboard mouse power cord user documentation and system recovery diskette The carton contents for multimedia configurations include the system unit with a quad speed CD ROM player keyboard mouse speakers power cord user documentation CD ROM disc with hotload backup and system recovery diskette Repack the system using the original shipping carton and p...

Page 40: ...wer system 1 At the rear of the system set the voltage selector switch to 115V or 230V and plug the power cord into the system power socket see Figure Section 2 1 CAUTION The correct AC input voltage must be properly set Select the appropriate voltage with the voltage selector switch located at the rear of the sys tem Figure Section 2 1 Desktop Voltage Selector Switch ...

Page 41: ...ct the keyboard and mouse cables to the back of the system unit see Figure Section 2 2 3 Connect the monitor and any other peripheral cables to the rear panel see Figure Section 2 2 Figure Section 2 2 Desktop Peripherals Connections ...

Page 42: ...2 4 Setup and Operation 4 Connect the network cables network configurations only to the rear panel see Figure Section 2 3 Figure Section 2 3 Desktop Network Board Connections ...

Page 43: ...Setup and Operation 2 5 5 If installing a multimedia system connect multimedia components to the sound board as shown in Figure Section 2 4 Figure Section 2 4 Desktop Multimedia Connections ...

Page 44: ...here is a problem a series of beeps may occur If this happens repeatedly after powering on the system power off the system and see Section 4 for troubleshooting NOTE If the system displays a message indicating that system settings have changed run Setup see System Configuration later in this sec tion If a problem occurs and is not indicated by beeps check the following items then turn to Section 4...

Page 45: ...tion Desktop Setup if setting up a desktop computer 1 At the rear of the system set the voltage selector switch to 115V or 230V and plug the power cord into the power socket see Figure Section 2 6 CAUTION The correct AC input voltage must be properly set Select the appropriate voltage with the voltage selector switch located at the rear of the sys tem Figure Section 2 6 Minitower Voltage Selector ...

Page 46: ...t the keyboard and mouse cables to the back of the system unit see Figure Section 2 7 3 Connect the monitor and any other peripheral cables to the rear panel see Figure Section 2 7 Figure Section 2 7 Minitower Peripherals Connections ...

Page 47: ...Setup and Operation 2 9 4 Connect the network cables network configurations only to the rear panel see Figure Section 2 9 Figure Section 2 8 Minitower Network Board Connections ...

Page 48: ...2 10 Setup and Operation 5 If installing a multimedia system connect mulitmedia components to the sound board Figure Section 2 9 Figure Section 2 9 Minitower Sound Fax Modem Board Connectors ...

Page 49: ...eps may occur If this happens repeatedly after powering on the system power off the system and see Section 4 for troubleshooting NOTE If the system displays a message indicating that system settings have changed run Setup see System Configuration later in this section If a problem occurs and is not indicated by beeps check the following items then turn to Section 4 for troubleshooting Check that n...

Page 50: ... that lights during read operations n eject reject button for opening or closing the CD tray when the power is on n CD tray that opens and closes when the eject retract button is pressed n emergency eject hole in the front panel for manually opening the CD tray if power is lost Insert a jewelers screwdriver into the hole Turn the screw counterclockwise to open the tray and clockwise to close the t...

Page 51: ...e in jack allows connecting a microphone for voice input n A line out jack allows bypassing of the sound board s internal amplifier so that the speakers included with the system powered speakers or an external amplifier can be connected n A speaker jack allows connection of unamplified speakers for audio output from the sound board s built in power amplifier Maximum output power is four watts per ...

Page 52: ...e single plug to the SPK OUT jack on the sound board at the rear of the system unit Figure Section 2 12 Ready 9520 Speaker Connections Connect the 6 volt AC adapter as follows 1 Remove any installed batteries from the speakers 2 Plug the AC adapter into the DC 6V jack on the back of the left speaker see Figure Section 2 12 3 Plug the other end of the AC adapter into a properly grounded wall outlet...

Page 53: ... Setup utility is used to view and set system parameters Use the Setup utility to n set the time and date n update or check system parameters when adding or removing expansion options n change or set power management features n correct a hardware discrepancy when the Power On Self Test POST displays an er ror message and a prompt appears to run Setup n check the installation of optional memory by ...

Page 54: ...line under the Setup title line The menu bar contains five top level menus for setting system parameters n A Main Menu summary window the center area on the left side of the screen This area provides a summary of Main Menu Setup parameters Main Menu parameters can be set directly from this window or from the Main menu option in the legend bar PhoenixBIOS Setup Copyright 1992 95 Phoenix Technologie...

Page 55: ...configuration For example select Main to set the system time system date diskette drives and video parameters Use this menu to check memory parameters n Advanced Use this menu to set serial port and printer port addresses and interrupts and to enable disable the system s diskette drive controller and dual IDE controllers The Advanced menu also provides menu items for setting parity and for setting...

Page 56: ...e for the field F9 Loads the Default Configuration values for this menu F10 Loads the Previous Configuration values for this menu Enter Executes a command or selects submenu Alt R Refreshes screen n Selecting a Menu Item To select a menu item use the arrow keys to move the cursor to the desired field Then use the value keys F5 F6 or space bar to cycle through the value for that field The Save Valu...

Page 57: ... a submenu See the sections following Table Section 2 2 for a description of Main Menu parameters from the summary window Table Section 2 2 Legend Bar Main Menu Parameters Parameter Options Description System Time HH MM SS Sets the system time System Date MM DD YYYY Sets the system date Diskette A Diskette B 360KB 5 1 4 1 2MB 5 1 4 720KB 3 1 2 1 44MB 3 1 2 2 88MB 3 1 2 Not Installed Selects the ty...

Page 58: ...ary IDE PCI port the combination becomes 1 Master 1 Slave Jumper settings on the IDE device set the device to master or slave see the documentation that comes with the device The factory installed master slave combination for multimedia configurations with an IDE hard disk and a CD ROM reader is 2 Masters The hard disk is connected to the primary IDE PCI port and the CD ROM reader is connected to ...

Page 59: ...escription Type 1 to 39 User Auto Selecting 1 to 39 fills in all remaining fields with values for predefined disk type User prompts user to fill in remaining fields When Auto is selected the BIOS will automatically set the drive type Cylinders 1 to 65534 Specifies number of cylinders Heads 1 to 16 Specifies number of read write heads Sectors Track 1 to 63 Specifies number of sectors per track Writ...

Page 60: ...ance CAUTION Some add in boards particularly with on board firmware do not work properly when shadowed Boot Sequence The system might require a Supervisor password to set Boot Sequence parameters Select Boot Sequence directly from the Main Menu summary window to display the Boot Options menu Use the legend keys to make the selections and exit to the Main Menu Use Table Section 2 5 to select the bo...

Page 61: ...Select Numlock directly from the Main Menu summary window to display the Keyboard Features menu Use the legend keys to make the selections and exit to the Main Menu Use Table Section 2 6 to configure the keyboard parameters Select NumLock directly from the Main Menu summary window to display the Keyboard Features menu Table Section 2 6 Numlock Parameters Parameters Options Description Numlock Auto...

Page 62: ...nu Select Integrated Peripherals menu on the Advanced Menu to configure the connections between the system processor and the I O ports serial port 1 serial port 2 and the printer port the diskette drives and hard disk controllers CAUTION If the system conditions require changing COM1 COM2 and LPT port settings be sure that these settings match the corresponding sys tem board jumper settings see Se...

Page 63: ...ers Both enables the primary and secondary channels Parity The Parity option in the Advanced menu controls system memory parity checking The system ships with non parity SIMMs The default setting for the parity option is Disabled This pa rameter might require a Supervisor password Large Disk Access Mode Select the Large Disk Access Mode parameter when configuring a large disk see Table Section 2 8...

Page 64: ... on the menu displays a Set Password dialog box with the following prompts Enter new password Re enter new password To set a password type the password and press Enter Reenter the password and press Enter See Table Section 2 9 for a description of the security features Use the legend keys to make the selections and exit to the Main Menu Table Section 2 9 System Security Options Feature Options Des...

Page 65: ...ot sector Normal default Write Protected Write protected helps prevent viruses When write protected operating systems and viruses and application programs which attempt to modify the boot sector will not be able to do so System backup reminder Virus check reminder Disabled default Daily Weekly Monthly When a schedule is specified displays a message during bootup asking Y N if the system has been b...

Page 66: ...ndby CPU Speed Max default High Medium Low Sets processor speed during Standby Suspend Button Suspend default Standby Disabled Suspend allows the system to enter Suspend mode when the suspend button is pressed Standby enables the system to enter Standby mode when the suspend button is pressed Parallel Port Activity Enabled default Disabled Enables parallel port activity by resetting the timer and ...

Page 67: ...Setup asks if the changes should be saved before exiting During bootup Setup attempts to load the values saved in NVRAM If the values saved in NVRAM cause the system boot to fail reboot and press F2 to enter Setup In Setup the ROM default values as described below can be loaded or the values can be changed that caused the boot to fail Discard Changes Exit Use this option to exit Setup without reco...

Page 68: ... this mes sage CMOS values have been loaded Press space to continue Save Changes Save Changes saves all the selections without exiting Setup Other menus selections can be re viewed or changed BIOS UPDATE UTILITY The NEC Bulletin Board Service BBS provides information about system software and hard ware Use the NEC BBS to obtain the latest version of the BIOS Update utility BUU and for VGA video dr...

Page 69: ...ter for the file menu To hang up and log off follow these steps at the NEC Technologies Bulletin Board 1 Press Enter to continue 2 Press G command for Goodbye Hangup 3 Press Enter SYSTEM BOARD JUMPERS This subsection provides jumper setting information for configuring the system for a particular system requirement Situations that require changing the jumper settings include the fol lowing n Changi...

Page 70: ...be changed use the procedure that follows the figures Jumper Settings In the 8 MB configurations two 4 MB single sided SIMMs are installed in bank 0 SIMM 1 on the system board Memory bank locations and valid SIMM configurations are provided in Chapter 6 under Checking the Memory in Your System The default setting for JP1 in the 8 MB configuration is pins 2 and 3 shorted Pins 2 and 3 must be shorte...

Page 71: ...setting in the 16 MB configuration has pins 1 and 2 shorted Pins 1 and 2 must be shorted when the following SIMMs are installed in bank 0 n 2 MB SIMMs n 8 MB SIMMs n 32 MB SIMMs Figure Section 2 14 SIMM Type Jumper JP1 The following jumpers set the processor frequency Figure Section 2 15 Processor Speed Jumpers JP5 JP6 and JP7 ...

Page 72: ...nfigurations Figure Section 2 16 Bus speed jumper JP10 Jumper JP12 is used to set the voltage used by the processor This is set at the factory and should not be changed CAUTION Changing the processor voltage jumper JP12 could damage the system board processor Figure Section 2 17 Processor voltage jumper JP12 ...

Page 73: ...me installed expansion boards may have to be removed to access the jumper see expansion board removal procedures in Section 6 4 If you removed any expansion boards replace them 5 Replace the system unit cover see Section 5 6 Plug in system and peripheral cables and turn on the system 7 Run Setup see the Setup subsection earlier in this section CMOS Jumper When clearing CMOS JP8 use the following p...

Page 74: ...les n Disconnect all peripherals n When handling boards or chips touch the system unit frame to discharge static n Do not disassemble parts other than those specified in the procedure n All screws are Phillips head unless otherwise specified n Label any removed connectors Note where the connector goes and in what position it was installed WARNING Unplug the power cord before dis assembling the sys...

Page 75: ...wer and all other peripheral cables at tached to the system unit 2 Remove the two cover screws shown in Figure Section 3 1 Figure Section 3 1 Desktop Cover Screws 3 Slide the top cover toward the rear about one inch see Figure Section 3 2 4 Lift the top cover up and off Figure Section 3 2 Removing the Desktop Cover ...

Page 76: ...the minitower top cover as follows 1 Power off and unplug the keyboard mouse power cord and all other peripheral cables attached to the system unit 2 Remove the four cover screws shown in Figure Section 3 3 Figure Section 3 3 Minitower Cover Screws ...

Page 77: ...rd On network configurations one ISA slot contains the network board All other slots are empty ready for installing expansion boards The minitower system has five 8 16 32 bit expansion slots on the rear of the system and six ex pansion board connectors on the ISA PCI backboard Three slots are for ISA boards one is a dedicated PCI slot and the remaining slot is a shared ISA PCI slot On multimedia c...

Page 78: ...te the expansion slot for board insertion see Figure Section 3 5 Remove the slot screw and cover Save the slot cover for use if the board is removed in the future To remove the inside expansion slot cover for access to the connector on the back board remove the backside expansion slot screws shown in Figure Section 3 6 Figure Section 3 5 Desktop Expansion Slots ...

Page 79: ...over from the inside separate the inside expansion slot L bracket from the expansion slot cover by removing the screw shown in Figure Section 3 7 Reattach the L bracket to the expansion board being installed Figure Section 3 7 Removing the Inside Expansion Slot Bracket Screw L Bracket Slot Cover ...

Page 80: ...board cannot be in stalled into the inside expansion slot 5 Reinstall the expansion slot screw to secure the expansion board 6 Connect any expansion board cables 7 Reinstall the top cover Minitower Expansion Board Installation Install expansion boards in the minitower system as follows 1 Remove the top cover previously described and the bottom access cover see Sec tion 6 2 Locate the expansion slo...

Page 81: ...t screw to secure the expansion board 5 Connect any expansion board cables 6 Replace the top cover and bottom access cover Expansion Board Troubleshooting If a fault occurs at power on verify that the expansion board installation was performed cor rectly One beep indicates that the computer has completed its power on self test If intermittent beeping occurs turn off the computer and try again If t...

Page 82: ...d malfunction Expansion board is not recognized 1 Reseat expansion board and cables 2 Check that pin one on cables and connectors match up 3 Install the expansion board in a different slot 4 Check the troubleshooting information that came with the expansion board 5 Check any switches or jumpers that are on the expansion board 6 Disable built in controllers when installing optional video diskette a...

Page 83: ...re required for processors installed in the system Heat sinks are available through NEC Install an OverDrive processor into the system board as follows 1 Remove the top cover and any expansion boards obstructing access to the processor socket 2 Remove the installed processor and heat sink as follows n Locate the processor socket on the system board see Figure Section 3 9 n Release the heat sink cl...

Page 84: ...Options 3 11 Figure Section 3 9 Locating the Processor Socket Figure Section 3 10 Removing the Heat Sink and Processor ...

Page 85: ...eed and voltage jumpers on the system board are set correctly for the processor see Sec tion 2 Setup and Operation n Insert the processor in the socket and swing the lever down to lock the processor in place n Insert the heat sink clips over the tabs on the socket and press the heat sink down until it locks in place Figure Section 3 11 Processor Alignment 4 Set the processor s speed and voltage ju...

Page 86: ...Section 3 2 OverDrive Problems and Solutions Problem Symptom Solution No power Power lamp on computer status panel does not light 1 Check that the power cord is plugged into the AC connector on the computer Check that the other end of the cord is plugged into a live properly grounded AC power outlet Operating system does not boot An invalid configuration message is displayed 1 Press F2 to run Setu...

Page 87: ...IMM kit 16 MB x 32 bit SIMM stick NOTE The 32 bit SIMM kits are used in the U S and Canada only The 36 bit SIMMs are used elsewhere SIMM Upgrade Path The SIMMs come in two different types single sided or double sided In the 8 MB non multimedia configurations two 4 MB single sided SIMMs are installed in SIMM sockets 1 and 2 bank 0 In the 16 MB multimedia configurations two 8 MB double sided SIMMs a...

Page 88: ...MB SIMMs 32 MB two 16 MB SIMMs 48 MB 32 MB two 16 MB SIMMs 16 MB two 8 MB SIMMs 64 MB 32 MB two 16 MB SIMMs 32 MB two 16 MB SIMMs 80 MB 64 MB two 32 MB SIMMs 16 MB two 8 MB SIMMs 128 MB 128 MB two 64 MB SIMMs Empty Standard on 8 MB configurations non multimedia Table Section 3 4 Double Sided SIMM Upgrade Path Total Memory Bank 0 Bank 1 16 MB 16 MB two 8 MB SIMMs Empty 24 MB 16 MB two 8 MB SIMMs 8 ...

Page 89: ...M sticks into the system board as follows 1 Remove the top cover and any expansion boards covering the socket 2 Locate the SIMM sockets on the system board see Figure Section 3 12 Figure Section 3 12 SIMM Socket Location 3 Insert the SIMM into the SIMM socket at an angle then push the SIMM upright so that the clips hold the SIMM in place see Figure Section 3 13 ...

Page 90: ...MM Installation 4 Repeat step 3 for each SIMM to be installed 5 Replace any removed expansion boards 6 Replace the top cover and run Setup to check that the system accepted the SIMM up grade see Section 2 Setup and Operation 1 of 2 Clips ...

Page 91: ... Problems and Solutions Problem Symptom Solution No power Power lamp on computer status panel will not light 1 Check that the power cord is plugged into the AC connector on the computer Check that the other end of the cord is plugged into a live properly grounded AC power outlet Operating system does not boot An invalid configuration message is displayed 1 Press F2 to run setup and view parameters...

Page 92: ...ional video DRAM is installed into the video DRAM sockets on the system board see Figure Section 3 14 Figure Section 3 14 Video DRAM Socket Location Install the video DRAM modules into the system board as follows 1 Remove the system unit cover and bottom access cover 2 Locate the two video DRAM sockets on the system board see Figure Section 3 14 If there are expansion boards obstructing the socket...

Page 93: ...ternal peripherals and power cables Verify that the system recognizes the additional video DRAM by performing the following 1 Power up the system 2 Exit Windows and return to the C prompt 3 At the C prompt type cd windows vgautil and press Enter Type clmode and press Enter 4 At the CLMODE main screen check that the display memory is 2048k indicating that the system has 2 MB of video memory 5 Press...

Page 94: ...lems and Solutions Problem Symptom Solution No power Power lamp on computer status panel will not light 1 Check that the power cord is plugged into the AC connector on the computer Check that the other end of the cord is plugged into a live properly grounded AC power outlet Operating system does not boot An invalid configuration message is displayed 1 Press F2 to run setup and view parameters Vide...

Page 95: ...ve cable plugs directly into the system board The diskette drive controller is incorporated on the system board The controller contains the cir cuits and control functions needed to support up to two diskette drives 5 1 4 Inch Diskette Drive Settings Specifications for the 5 1 4 inch 1 2 MB diskette drive are listed in Appendix B Specifications The standard 44 MB diskette drive settings are shown ...

Page 96: ... two devices to the secondary IDE PCI connector an optional two device cable must be used When installing a second hard disk drive use the open connector on the cable coming from the primary IDE PCI connector A hard disk controller board is not required The IDE drives de scribed in this section are thin height 1 inch x 3 1 2 inch drives Hard Disk Drive Settings The following IDE hard disk drives a...

Page 97: ...t for master one drive installed Figure Section 3 19 CFA1275 1 275 GB Hard Disk Drive Cable Select Configuration Dual Drives Two drives installed Master Two drives installed Slave One drive installed Factory Setting Front of Drive Signal Connector Power Connector C D C D Drive 1 and Drive 2 Master factory setting Drive 2 Slave ...

Page 98: ... remove the 5 1 4 inch blank panel when installing a hard disk drive The 3 1 2 inch hard disk drives must be mounted in a 5 1 4 inch bracket Desktop 3 1 2 inch Drive Bracket Removal Remove the 3 1 2 inch drive bracket from the desktop system unit as follows 1 Remove the top cover as previously described 2 Remove the four 3 1 2 inch drive bracket screws see Figure Section 3 20 3 Without removing th...

Page 99: ...previously described 2 Unplug the following cables from their connectors n Power lamp n Hard disk drive busy lamp n Suspend button 3 Remove the five front panel screws see Figure Section 3 21 4 Pull the lamp and suspend cables through the hole in the front of the system unit chassis when removing the front panel assembly Figure Section 3 21 Desktop Front Panel Removal ...

Page 100: ...front panel once the blank panel is removed Desktop Device Installation Install a device into the 5 1 4 inch device slot as follows 1 Remove the top cover front panel and 3 1 2 inch drive bracket as previously de scribed NOTE When installing 3 1 2 inch hard disk drives a 5 1 4 inch hard disk bracket must first be attached to the 3 1 2 inch hard disk drives 2 Slide the rear of the device into the 5...

Page 101: ...tional three connector signal cable part number 158 050561 000 1 Unplug and remove the two connector signal cable from the installed diskette drive and the diskette connector on the system board 2 Plug the optional three connector cable into the system board and into the two diskette drives see Figure Section 3 24 The middle connector plugs into the 5 1 4 inch disk ette drive and the end connector...

Page 102: ... steps 1 Locate the IDE hard disk signal cable connected to the 3 1 2 inch hard disk drive and plug the middle connector into the signal connector on the hard disk drive in the 5 1 4 inch slot see Figure Section 3 25 NOTE When installing the drives note that all power and hard disk signal cables are keyed to fit only in the correct position Either of the hard disk drive signal cable connectors may...

Page 103: ...cket by reversing the steps of the Desktop 3 1 2 inch Drive Bracket Removal procedure given earlier 2 Replace the top cover and run Setup to reconfigure the computer for the hard disk drive see Section 2 Setup and Operation If a fault occurs at power on verify that the reassembly was performed correctly Reconfigure the computer for the hard disk drive by selecting hard disk drive In stalled in Set...

Page 104: ... to the drive bracket NOTE Do not remove the 5 1 4 inch blank panel when installing a hard disk drive The 3 1 2 inch hard disk drives must be mounted in a 5 1 4 inch bracket Minitower Front Panel Blank Panel and Device Cage Removal Remove the front panel blank panel and device cage from the minitower chassis as follows 1 Remove the minitower cover as previously described 2 Remove the four screws t...

Page 105: ...el from the metal cover plate by pressing in on the panel tabs see Figure Section 3 27 4 Remove the two screws holding each metal plate cover plate to the device bracket Remove the plates Figure Section 3 27 Minitower Blank Panel Removal ...

Page 106: ...Options 3 33 5 Remove the five screws holding the 5 1 4 inch device cage to the chassis see Figure Section 3 28 Figure Section 3 28 Device Cage Removal ...

Page 107: ...ing 3 1 2 inch hard disk drives a 5 1 4 inch hard disk bracket must first be attached to the 3 1 2 inch hard disk drives 2 Slide the rear of the device into the 5 1 4 inch device cage 3 Align the holes on the 5 1 4 inch device with the holes in the device cage 4 Install the four device screws that come with the kit two on each side of the drive cage see Figure Section 3 29 Figure Section 3 29 Mini...

Page 108: ...to the system board and into the two diskette drives see Figure Section 3 30 The middle connector plugs into the 5 1 4 inch disk ette drive and the end connector plugs into the 3 1 2 inch drive NOTE When cabling the 5 1 4 inch device note that all power cables are keyed to fit only in the cor rect position The red edge of the diskette drive sig nal cable is positioned as shown 3 Locate the power c...

Page 109: ...31 NOTE When installing the drives note that all power and hard disk signal cables are keyed to fit only in the correct position Either of the hard disk drive signal cable connectors may be used for the hard disk drives The hard disk drives are configured by jumpers as master drive C and slave drive D 2 Locate one of the larger power connectors coming from the power supply and plug it into the har...

Page 110: ...d disk drive In stalled in Setup Setup will automatically detect the hard disk type When installing a hard disk drive that cannot be detected use the Define Hard Disk Type to determine the hard disk drive type MINITOWER OPTIONAL 3 1 2 INCH HARD DRIVE INSTALLATION Install an optional internal 3 1 2 inch hard disk drive in the minitower system as follows 1 Follow any preinstallation instructions tha...

Page 111: ...ith the mounting holes in the chassis 6 Secure the hard drive to the chassis with the four screws provided with the hard drive kit 7 Connect a connector on the power cable and a connector on the signal cable to the connectors on the hard drive See the preceding subsection Minitower 5 1 4 Inch Hard Disk Drive Cabling for cabling instructions 8 Install the minitower system cover 9 Connect any extern...

Page 112: ...roperly grounded AC power outlet Operating system does not boot An invalid configuration message is displayed 1 Press F2 to run Setup and view parameters 2 Check installation of the operating system on the hard disk 3 Check to see if the system will boot from a diskette drive Keyboard or mouse malfunction Monitor has prompt but cannot input data 1 Check that the keyboard is plugged in 2 Check that...

Page 113: ...tor panel and system board Hard disk controller failure message displayed 1 Check that the IDE port and hard disk drives are enabled Cannot access hard disk 1 Check signal and power connections between the hard disk PCB and power supply 2 Check drive switch or jumper settings 3 Verify the hard disk parameters selected are correct for the drive 4 Check the power supply and replace the hard disk cab...

Page 114: ...ropriate menu to reach one of the following departments Information Center literature dealer locations sales leads response to ads NASC National Authorized Service Centers Administration new dealer service authorization warranty claims NSRC National Service Response Center questions other than products spare parts or technical support Service Contracts TAC Technical Assistance Center technical sup...

Page 115: ...plugged System Unit Use the following procedure for cleaning the system 1 Power off the system and unplug all power cables 2 Periodically wipe the outside of the system unit keyboard mouse and monitor with a soft clean cloth Remove stains with a mild detergent Do not use solvents or strong abrasive cleaners on any part of the system 3 Clean the monitor screen with glass cleaner then wipe with a cl...

Page 116: ...replaceable assembly Therefore disassembly of the keyboard is necessary only when cleaning the inside Figure Section 4 1 Removing the Keyboard Enclosure 2 Separate the two halves of the enclosure Clean the enclosure and keys with a damp cloth A small soft bristle brush may be used to clean between the keys Do not wet or dampen the keyboard s printed circuit board PCB If the PCB accidentally gets w...

Page 117: ...em unit 2 Turn the mouse upside down and locate the mouse ball cover see Figure Section 4 2 3 Turn the ball cover counterclockwise and remove the cover Figure Section 4 2 Removing the Mouse Ball Cover 4 Turn the mouse over and remove the ball 5 Clean the mouse as follows n Clean the mouse ball with tap water and a mild detergent then dry it with a lint free cloth n Remove any dust and lint from th...

Page 118: ... does not respond Run Setup to correct this problem Also check the C hard disk drive type in Setup to make sure the hard disk drive type is correct C Drive Failure Hard disk drive C does not respond Replace the hard disk drive Cache Memory Bad Do Not Enable Cache Cache memory is defective CH 2 Timer Error Most AT systems include two timers There is an error in Timer 2 CMOS Battery State Low CMOS R...

Page 119: ...ctions INTR 1 Error Interrupt channel 1 failed POST INTR 2 Error Interrupt channel 2 failed POST Invalid Boot Diskette The BIOS can read the disk in diskette drive A but cannot boot the system Use another boot diskette Keyboard Is Locked Keyboard lock on the system is engaged The system must be unlocked to continue Keyboard Error There is a timing problem with the keyboard Set the Keyboard option ...

Page 120: ...ent beeping occurs power off the computer and try again If the beeping persists see Table Section 4 4 The table summarizes problems that may develop during computer operation and lists in sequential order suggested corrective actions Table Section 4 4 Problems and Solutions Problem Symptom Solution No power Power lamp on computer status panel will not light 1 Check that the power cord is plugged i...

Page 121: ...power on Computer beeps more than once and is unable to complete boot up 1 Check system configuration 2 Check all jumper settings and verify that drives are enabled refer to Section 2 3 Reseat SIMMs and option boards in their connectors Inspect system board for dropped objects 4 Remove option boards and reboot 5 Replace system board Invalid Configuration message displayed 1 Press the F1 key to run...

Page 122: ...r failure message displayed 1 Check that the IDE port and hard disk drives are enabled in setup Cannot access hard disk 1 Check signal and power connections between hard disk PCB and power supply 2 Check drive jumper settings refer to Section 3 3 Check power supply and replace hard disk cable 4 Replace hard disk 5 Replace system board or hard disk controller PCB if system board is not used Memory ...

Page 123: ... 768 Most monitors don t support resolutions above 640 x 480 VGA monitors 3 Check that the utility is not selecting a refresh rate resolution that is not supported by the monitor 4 Check that the driver used matches the capabilities of the built in video controller and DRAM Wavy display 1 Check that the computer and monitor are not near motors or electric fields Blank display 1 Check that built in...

Page 124: ...keyboard controller 8042 may be bad The BIOS cannot switch to protect mode Processor exception interrupt error 7 The CPU generated an exception interrupt Display memory read write error 8 The system graphics is either missing or its memory is faulty This is not a fatal error ROM checksum error 9 ROM checksum value does not match the value encoded in the BIOS CMOS shutdown register read write error...

Page 125: ...ollowing BBS parameters n Baud rate 2400 bps n Parity none n Data bits 8 n Stop bits 1 3 Log onto the BBS n Click on the Phone menu item n Enter the BBS phone number 508 635 4706 n Click on OK 4 Press Enter twice 5 Enter your first name last name and password Press Enter after each 6 Follow the screen prompts until the NECTECH Main Menu is displayed The prompts require the following key strokes n ...

Page 126: ...system see Section 2 Setup and Operation for Setup information 2 Insert the flash diskette in drive A 3 Reboot the system 4 At the flash upgrade Main Menu use the arrow keys to select Install New BIOS and press Enter 5 A prompt appears asking for confirmation to upgrade the BIOS Press Enter to con tinue with the flash upgrade and Cancel to quit 6 At upgrade completion remove the flash diskette A R...

Page 127: ...quired tool For complete disassembly of the system unit follow the disassembly order listed in Table Section 5 1 To reassemble follow the table in reverse order Individual removal procedures do not require the total disassembly of the computer Each of the following subsections lists the parts that must be removed before beginning the removal procedure To reassemble follow the procedure in reverse ...

Page 128: ...than those specified in the procedure n All screws are Phillips head unless otherwise specified n Label all removed connectors Note where the connector goes and in what position it was installed On completion of any reassembly perform a power on test see Section 2 Setup and Operation If a fault occurs verify that the reassembly was performed correctly CAUTION When handling boards or chips ground y...

Page 129: ...Voltage is present in side the system unit even after the power is off All voltage is removed only when the power cord is un plugged 1 Power off and unplug the keyboard mouse power and all other peripheral cables at tached to the system unit 2 Remove the two cover screws shown in Figure Section 5 1 Figure Section 5 1 Top Cover Screws ...

Page 130: ...e top cover as previously described 2 Disconnect any cables leading from the expansion board s including the multimedia sound board audio cable if installed NOTE The CD ROM uses an IDE interface sig nal cable The only cable attached to the sound board is the audio cable 3 Remove the screw from the expansion slot bracket see Figure Section 5 3 To remove a board on the inside of the PCI ISA Bus back...

Page 131: ...Desktop Repair 5 5 Figure Section 5 3 Expansion Slot Screw Figure Section 5 4 Inside Expansion Slot Screw 4 Remove the board from the expansion slot ...

Page 132: ...he backside of the PCI ISA Bus back board separate the inside expansion slot L bracket from the expansion board by re moving the screw shown in Figure Section 5 5 Figure Section 5 5 Removing the Expansion Slot L Bracket Screw Expansion Board Bracket L Bracket ...

Page 133: ...unit as follows 1 Remove the top cover and all expansion boards as previously described 2 Remove the two backboard screws see Figure Section 5 6 3 Lift the backboard away from the bracket and out of the system unit Figure Section 5 6 ISA PCI Bus Backboard Screws ISA PCI Bus Backboard Screws Bracket ...

Page 134: ...ower cable and signal cable from the hard disk drive NOTE When reinstalling the drives note that all power cables are keyed to fit only in the correct po sition The red edge of the diskette drive signal cable is positioned as shown 4 Remove the four 3 1 2 inch drive bracket screws see Figure Section 5 7 Figure Section 5 7 3 1 2 Inch Drive Bracket Screws 1 of 4 Drive Bracket Screws 3 1 2 Inch Drive...

Page 135: ...ove the two 3 1 2 inch hard disk drive screws two on each side of the drive bracket see Figure Section 5 8 6 Pull the drives out from the front of the bracket Figure Section 5 8 3 1 2 Inch Diskette and Hard Disk Drive Screws 3 1 2 Inch Diskette Drive 3 1 2 Inch Hard Disk Drive 2 of 4 Diskette Drive Screws 2 of 4 Hard Disk Drive Screws ...

Page 136: ...ower lamp connector J16 n Hard disk drive busy lamp connector J14 n Suspend button connector J11 3 Remove the five front panel screws see Figure Section 5 9 4 Pass the two lamp and suspend cables through the hole in the front of the system unit chassis when removing the front panel assembly Figure Section 5 9 Indicator Panel Connectors 5 Separate the lamps and suspend button from the front panel a...

Page 137: ...panel as follows 1 Remove the top cover and front panel as previously described 2 Release the four power button tabs and push the tabs through the front panel 3 Remove the power button from the front of the panel Figure Section 5 10 Power Button Tabs 1 of 4 Power Button Tabs Inside Front Panel ...

Page 138: ... cover as previously described 2 Unplug the speaker connector J18 on the system board 3 Remove the speaker screw from the side of the device cage see Figure Section 5 11 4 Lift the speaker from the slot in the device cage Figure Section 5 11 Speaker Screw Speaker Screw Device Cage To Connector J18 on System Board ...

Page 139: ...d 2 Open the two clips at each end of the SIMM connector see Figure Section 5 12 Tilt the SIMM stick forward so that the SIMM can be removed from the socket 3 Remove the SIMM stick from the system board Repeat step 2 for each SIMM to be removed NOTE Detailed information on removing SIMM sticks is in Section 3 Options Figure Section 5 12 SIMM Socket Clips Hole Post ...

Page 140: ...ee Figure Section 5 13 including the audio cable connected to the CD ROM if in stalled 3 Remove the four device screws two from each side of the 5 1 4 inch device cage see Figure Section 5 13 4 Remove the device from the 5 1 4 inch device cage NOTE When reinstalling the 5 1 4 inch device note that all power cables are keyed to fit only in the correct position The red edge of the diskette drive sig...

Page 141: ... top cover front panel and 3 1 2 inch drive bracket as previously described 2 Unplug all signal and power cables from the device s in the 5 1 4 inch device cage see Figure Section 5 13 including the audio cable connected to the CD ROM reader if installed 3 Remove the four device cage screws from the front of the device cage see Figure Section 5 14 4 Pull the device cage out of the system unit Devi...

Page 142: ...nd front panel as previously described 2 Unplug the power cable attached to the system board s connector 3 Unplug the power cables from all installed devices 4 Remove the two screws securing the power button to the front of the system unit see Figure Section 5 15 Figure Section 5 15 Power Button Screws Power Button Screws ...

Page 143: ... the power supply to the system unit see Figure Section 5 16 6 Slide the power supply toward the system board to release the two tabs at the front then lift it out of the system unit Figure Section 5 16 Power Supply Screws Power Supply Screws 1 of 2 Tabs ...

Page 144: ...s installed on the system board NOTE If installed remove the optional video DRAM module see Section 3 Options 2 Remove and label all cables connected to the system board Appendix A shows the general locations of the connectors on the system board Appendix A also includes the pin assignments for each connector 3 Remove the seven screws that hold the system board to the system unit chassis Re move t...

Page 145: ...50823 000 4 Board Edge Guide 158 050685 019 5A 3 1 2 inch x 1 inch 540 MB Hard Disk 158 050395 322 5B 3 1 2 inch x 1 inch 1 2 GB Hard Disk 158 050395 338 6 3 1 2 inch x 1 inch 1 44 MB Diskette Drive 808 870954 101A 7 3 1 2 inch Drive Bracket 158 050685 109 8 PCI ISA Bus Backboard Bracket 158 050685 006 9 Hard Disk Drive IDE Signal Cable 158 050562 002 10 CD ROM IDE Signal Cable 158 050562 004 11 D...

Page 146: ...ne 158 050696 100 25 5 1 4 inch Device cage 158 050685 011 26 4X CD ROM Reader 158 050817 000 27 Speaker Assembly internal 158 050685 003 28 Power Button Cover and Spring 158 050685 008 29 Front Panel Bezel 158 050685 007 30 5 1 4 inch Blank Panel 158 050685 010 31 Keyboard 158 050707 000 32 Power Cord 808 857649 101A 33 NEC Mouse PS 2 compatible 158 050484 002 ____________ This data was prepared ...

Page 147: ...Desktop Repair 5 21 ...

Page 148: ...on 5 4 PowerMate VP Series Desktop Documentation and Packaging Description Part Number PowerMate VP Series User s Guide 819 181129 000 PowerMate VP Desktop Multimedia Quick Setup 819 181146 000 PowerMate VP Series Service and Reference Manual 819 181170 000 PowerMate VP Series Service Video Training Kit 158 056099 026 NEC Multimedia Series Ensemble Software User s Guide 819 181124 000 PowerMate VP...

Page 149: ...he sys tem unit follow the disassembly order listed in Table Section 6 1 To reassemble follow the table in reverse order Individual removal procedures do not require the total disassembly of the computer Each of the following subsections lists the parts that must be removed before beginning the re moval procedure To reassemble follow the procedure in reverse order Table Section 6 1 PowerMate VP Se...

Page 150: ...other than those specified in the procedure n All screws are Phillips head unless otherwise specified n Label all removed connectors Note where the connector goes and in what position it was installed On completion of any reassembly perform a power on test see Check in Section 2 If a fault occurs verify that the reassembly was performed correctly CAUTION When handling boards or chips ground yourse...

Page 151: ...ge is present inside the system unit even after the power is off All voltage is removed only when the power cord is unplugged 1 Power off and unplug the keyboard mouse power and all other peripheral cables attached to the system unit 2 Remove the four cover screws shown in Figure Section 6 1 Figure Section 6 1 Removing the Top Cover Screws ...

Page 152: ...6 4 Minitower Repair 3 Slide the top cover toward the rear about one inch see Figure Section 6 2 4 Lift the top cover up and off the system unit Figure Section 6 2 Removing the Top Cover ...

Page 153: ...peripheral cables attached to the system unit 2 Place the system unit on its right side 3 Remove the access cover screw as shown in Figure Section 6 3 4 Slide the bottom access cover toward the rear of the system releasing the tabs from the cutouts in the bottom of the chassis 5 Remove the bottom access cover from the system unit Figure Section 6 3 Minitower Bottom Access Cover ...

Page 154: ... board s per the following steps 1 Remove the top cover and bottom access cover as previously described 2 Disconnect any cables leading from the expansion board s The sound board has an audio cable and signal cable attached 3 Remove the screw from the expansion slot bracket see Figure Section 6 4 4 Remove the expansion board Figure Section 6 4 Expansion Slot Screw ...

Page 155: ...Remove the front panel assembly from the chassis as follows 1 Remove the top cover as previously described 2 Remove the four screws two on each side holding the front panel to the system unit see Figure Section 6 5 Figure Section 6 5 Front Panel Screws ...

Page 156: ... the top cover and front panel as previously described 2 Release the four power button tabs from the inside of the front panel and push the tabs through the front panel see Figure Section 6 6 3 Remove the power button from the front of the panel Figure Section 6 6 Power Button Tabs Power Button Tabs Inside Front Panel ...

Page 157: ...e chassis as follows 1 Remove the top cover and front panel as previously described 2 Release the blank panel tabs and remove the blank panel from the metal cover plate see Figure Section 6 7 3 Remove the two screws holding each metal cover plate to the device cage Re move the plates Figure Section 6 7 Blank Panel Removal ...

Page 158: ...teps 1 Remove the top cover as previously described 2 Unplug the speaker from connector J18 on the system board 3 Slide the speaker over the raised spot and out from the speaker tabs 4 Remove the speaker from the system unit Figure Section 6 8 Speaker Tabs Raised Spot 1 of 3 Tabs To Connector on System Board ...

Page 159: ...y described 2 Open the clips at each end of the SIMM connector see Figure Section 6 9 Tilt the SIMM forward so that the SIMM can be removed from the socket 3 Remove the SIMM stick from the system board Repeat steps 2 and 3 for each SIMM being removed NOTE Detailed information on removing SIMM sticks is in Section 3 Options Figure Section 6 9 SIMM Socket Clips Hole Post ...

Page 160: ... signal and power cables from any device s in the 5 1 4 inch device cage Also unplug the audio cable from the CD ROM reader if installed 3 Remove the five screws securing the device cage to the chassis see Figure Sec tion 6 10 4 Pull the device cage out from the front of the system unit Any devices in the cage do not need to be removed Figure Section 6 10 Removing the Device Cage Screws ...

Page 161: ...1 4 inch device cage as follows 1 Remove the top cover front panel and device cage as previously described 2 Remove the four 5 1 4 inch device screws two on each side see Figure Section 6 11 3 Remove the device from the 5 1 4 inch device cage Figure Section 6 11 5 1 4 Inch Device Screws ...

Page 162: ... top cover as previously described 2 Unplug the hard disk drive power and signal cables from the hard disk drive see Figure Section 6 12 NOTE When reinstalling the drives note that all power cables are keyed to fit only in the cor rect position Figure Section 6 12 3 1 2 Inch Hard Disk Drive Cables IDE Cable Power Cable ...

Page 163: ...nch hard disk drive to the underside of the chassis top see Figure Section 6 13 Note optional hard disk drive screws shown standard hard drive similar 4 Remove the 3 1 2 inch hard disk drive from the chassis Figure Section 6 13 Removing the 3 1 2 Inch Hard Disk Drive ...

Page 164: ...ble and signal cable from the diskette drive see Figure Section 6 14 NOTE When reinstalling the diskette drive note that all power cables are keyed to fit only in the correct position The red edge of the diskette drive signal cable is positioned as shown Figure Section 6 14 3 1 2 Inch Diskette Drive Cables 1 2 MB Diskette Drive Connector Red Edge Diskette Drive Signal Cable Power Cable ...

Page 165: ...Minitower Repair 6 17 3 Remove the three 3 1 2 inch diskette drive bracket screws shown in Figure Sec tion 6 15 Figure Section 6 15 Diskette Drive Bracket Screws 3 1 2 Inch Diskette Drive Bracket Screws ...

Page 166: ...rive with bracket out of the system unit 5 Remove the four 3 1 2 inch diskette drive screws two to a side see Figure Sec tion 6 16 6 Remove the drive from the bracket Figure Section 6 16 Diskette Drive Screws 2 of 4 Screws 3 1 2 Inch Diskette Drive Bracket ...

Page 167: ...viously described 2 Unplug the two power cables attached to the system board s connectors 3 Unplug the power cables from all installed devices 4 Remove the two screws securing the power button to the front of the system unit see Figure Section 6 17 Figure Section 6 17 Power Button Screws Power Button Screws ...

Page 168: ... supply to the system see Figure Section 6 18 6 Slide the power supply toward the front of the system unit to release the two tabs at the top of the chassis Remove the power supply from the system unit Figure Section 6 18 Power Supply Screws Screws Power Supply Tabs ...

Page 169: ...as previously described 2 Remove the two backboard bracket screws see Figure Section 6 19 3 Pull the backboard and bracket out of the system unit Figure Section 6 19 Chassis Support Bracket Screws 4 Separate the backboard from the bracket by removing the two attaching screws Bracket Screw not shown Bracket Screw Chassis Support Bracket ...

Page 170: ... 3 1 2 inch drive cage n 3 1 2 inch diskette drive bracket n SIMMs installed on the system board n optional video DRAM module if installed 2 Remove and label all cables connected to the system board Appendix A provides the connector identifiers and pin assignments for each connector 3 Remove the seven screws that hold the system board to the system unit chassis Remove the system board from the sys...

Page 171: ... Board 158 050803 000A 4 Pentium 75 50 CPU 158 082502 005 5 Heatsink for Pentium 75 50 CPU 158 060324 001 6 Sound Board 158 050797 000 7 Network Board 158 050796 000 8 ISA PCI Bus Backboard 158 050818 000A 9A 4 MB SIMM 1 x 32 bit 158 082552 070 9B 8 MB SIMM 2 x 32 bit 158 082553 070 10 Bottom Cover 158 050705 108 11 Chassis Support Bracket 158 050705 008 12 Chassis Key and Lock 158 050705 003 13 3...

Page 172: ...ignal Cable 158 050578 001 27 3 1 2 Inch x 1 Inch 1 44 MB Diskette Drive 808 870954 101A 28 5 1 4 Inch Device Cage 158 050705 013 29 3 1 2 Inch Diskette Drive Cage 158 050705 009 30 Fan Cover Card Guide 158 050705 015 31 Power Button Cover and Spring 158 050698 008 32 PowerMate VP75 Logo 158 030597 008 33 Front Panel Bezel 158 030596 001 34 Fan Assembly and Extender Cable 158 050823 000 35 Speaker...

Page 173: ...Minitower Repair 6 25 ...

Page 174: ...ection 6 20 PowerMate VP75 Series Minitower Illustrated Parts Breakdown ____________ This data was prepared February 1995 For an up to date listing of spare parts please call FastFacts 800 366 0476 and order document number 42181170 ...

Page 175: ...Section 6 4 PowerMate VP Minitower Documentation and Packaging Description Part Number PowerMate VP Series User s Guide 819 181129 000 PowerMate VP Series Service and Reference Manual 819 181170 000 PowerMate VP Series Service Video Training Kit 158 056099 026 NEC Multimedia Series Ensemble Software User s Guide 819 181124 000 PowerMate Minitower Series Shipping Carton 158 040455 012 PowerMate Min...

Page 176: ...pendix A 1 shows the locations of the system board connectors Table Appendix A 1 identifies the connector function with the connector number Descriptions of the connectors are provided in the following subsections Jumper settings are provided in Section 2 Setup and Operation Figure Appendix A 1 System Board Layout ...

Page 177: ...1 6 pin PS 2 style connector Power supply J8 1 x 12 pin locking header Diskette drive interface J5 2 x 17 pin header PCI IDE interface primary J7 2 x 20 pin header IDE interface secondary J4 2 x 20 pin header Not used J12 J17 1 x 2 pin header Power lamp J16 1 x 5 pin header Hard disk drive busy lamp J14 1 x 4 pin header Fan Connected to power supply cable Speaker J18 1 x 4 pin header Power Status ...

Page 178: ... output from the system board through two 9 pin COM port connectors The 9 pin D subconnectors are located at the rear of the system unit Pin locations and pin assignments for the two serial interface connectors are shown in Figure Appendix A 2 Figure Appendix A 2 Serial Interface J3 J10 ...

Page 179: ...as a 25 pin parallel port on the system board Parallel interface specifications for this port conform to the IBM PC interface Pin locations and pin assignments for the parallel interface connector are shown in Figure Appendix A 3 Figure Appendix A 3 Parallel Interface J15 ...

Page 180: ...Connector J20 Pin Assignments Pin Signal 1 Red 2 Green 3 Blue 4 Monitor ID bit 2 not used 5 Ground 6 Red return ground 7 Green return ground 8 Blue return ground 9 Key no pin 10 Sync return ground 11 Monitor ID bit 0 not used 12 Monitor ID bit 1 not used 13 Horizontal sync 14 Vertical sync 15 Not used Speaker Connector Pin Assignments Speaker connector pin locations and pin assignments are shown i...

Page 181: ...dix A 4 Power Supply Connector J8 Pin Assignments Keyboard and Mouse Connectors The keyboard and mouse use standard PS 2 connectors Pin assignments are given in Table Appendix A 4 Table Appendix A 4 Keyboard J1 and Mouse J2 Connector Pin Assignments Pin Keyboard Connector Mouse Connector 1 Keyboard Data Mouse Data 2 N C N C 3 GND GND 4 5V fused 5V fused 5 Keyboard Clk Mouse Clk 6 N C N C 5 GND GND...

Page 182: ...onnector Hard disk drive busy lamp connector pin assignments are given in Table Appendix A 6 The two wire hard disk drive busy lamp cable connects to a four position connector J14 on the system board The cable s yellow wire 1 goes to pin 1 and the black wire 2 goes to pin 2 on the four position connector Table Appendix A 6 Hard Disk Drive Lamp Connector J14 Pin Assignments Pin Signal 1 5V 2 Hard d...

Page 183: ...n Assignments 3 Ground Suspend Button Connector Suspend button connector pin assignments are given in Table Appendix A 8 Table Appendix A 8 Suspend Button Connector J11 Pin Assignments Pin Signal 1 Reset 2 Key 3 Ground ...

Page 184: ... 9 Diskette Drive Connector J5 Pin Assignments Ground Pin Signal Pin I O Signal Name 1 2 O FDHDIN 3 4 Not used 5 6 FDEDIN 7 8 INDEX 9 10 MOTEN1 11 12 O DS2 13 14 O DS1 15 16 O MOTEN2 17 18 O DIR 19 20 O STEP 21 22 O WRT DATA 23 24 O WRT EN GATE 25 26 I TRK0 27 28 I WRT PROT 29 30 I READ DATA 31 32 O HS SEL 33 34 I DSKT CHG Pin 5 is reserved for connector polarization ...

Page 185: ...active signals are further prefixed with a designation All positively ac tive signals are prefixed with a designation Table Appendix A 10 IDE PCI Connector Pin Assignments J4 J7 Pin Signal Pin Signal 01 HOST RESET 02 GND 03 HOST DATA 7 04 HOST DATA 8 05 HOST DATA 6 06 HOST DATA 9 07 HOST DATA 5 08 HOST DATA 10 09 HOST DATA 4 10 HOST DATA 11 11 HOST DATA 3 12 HOST DATA 12 13 HOST DATA 2 14 HOST DAT...

Page 186: ... D9 4 D1 28 A7 52 D25 5 D17 29 N C 53 D10 6 D2 30 5V 54 D26 7 D18 31 A8 55 D11 8 D3 32 A9 56 D27 9 D19 33 N C 57 D12 10 5V 34 RAS2 58 D28 11 N C 35 MP2 59 5V 12 A0 36 MP0 60 D29 13 A1 37 MP1 61 D13 14 A2 38 MP3 62 D30 15 A3 39 GND 63 D14 16 A4 40 CAS0 64 D31 17 A5 41 CAS2 65 D15 18 A6 42 CAS3 66 N C 19 N C 43 CAS1 67 PD0 N C 20 D4 44 RAS0 68 PD1 N C 21 D20 45 N C 69 PD2 N C 22 D5 46 N C 70 PD3 N C...

Page 187: ...V A8 SD01 B8 0WS E8 PCIRST F8 PCLKF A9 SD00 B9 12V E9 GNTO F9 GND A10 IOCHRDY B10 GND E10 REQ0 F10 GNT1 A11 AEN B11 SMEMWR E11 GND F11 GND A12 SA19 B12 SMEMRD E12 PCLKE F12 REQ1 A13 SA18 B13 IORD E13 GND F13 AD31 A14 SA17 B14 IOWR E14 AD30 F14 AD29 A15 SA16 B15 DACK3 E15 3 3V F15 3 3V A16 SA15 B16 DRQ3 E16 Key F16 Key A17 SA14 B17 DACK1 E17 3 3V F17 3 3V A18 SA13 B18 DRQ1 E18 AD28 F18 AD27 A19 SA1...

Page 188: ... SB0 H2 AD15 C3 LAB22 D3 IRQ10 G3 CBE1 H3 AD14 C4 LAB21 D4 IRQ11 G4 PAR H4 AD12 C5 LAB20 D5 IRQ12 G5 GND H5 GND C6 LAB19 D6 IRQ15 G6 Key H6 Key C7 LAB18 D7 IRQ14 G7 GND H7 GND C8 LAB17 D8 DACK0 G8 AD13 H8 AD10 C9 MEMRD D9 DRQ0 G9 AD11 H9 AD8 C10 MEMWR D10 DACK5 G10 AD9 H10 AD7 C11 SD08 D11 DRQ5 G11 CBE0 H11 AD5 C12 SD09 D12 DACK6 G12 AD6 H12 AD3 C13 SD10 D13 DRQ6 G13 AD4 H13 AD1 C14 SD11 D14 DACK7...

Page 189: ...put SD03 B6 Input DRQ2 A7 Input Output SD02 B7 Power 12V A8 Input Output SD01 B8 Input 0WS A9 Input Output SD00 B9 Power 12V A10 Input IOCHRDY B10 Ground GND A11 Output AEN B11 Output SMEMWR A12 Input Output SA19 B12 Output SMEMRD A13 Input Output SA18 B13 Input Output IORD A14 Input Output SA17 B14 Input Output IOWR A15 Input Output SA16 B15 Output DACK3 A16 Input Output SA15 B16 Input DRQ3 A17 I...

Page 190: ...nput Output LAB22 D3 Input IRQ10 C4 Input Output LAB21 D4 Input IRQ11 C5 Input Output LAB20 D5 Input IRQ12 C6 Input Output LAB19 D6 Input IRQ15 C7 Input Output LAB18 D7 Input IRQ14 C8 Input Output LAB17 D8 Output DACK0 C9 Input Output MEMRD D9 Input DRQ0 C10 Input Output MEMWR D10 Output DACK5 C11 Input Output SD08 D11 Input DRQ5 C12 Input Output SD09 D12 Output DACK6 C13 Input Output SD10 D13 Inp...

Page 191: ...Ground 6 Data Bit 2 7 Ground 8 Data Bit 3 9 Ground 10 Data Bit 4 11 Ground 12 Data Bit 5 13 Ground 14 Data Bit 6 15 Ground 16 Data Bit 7 17 Ground 18 Parity Bit 19 Ground 20 Ground 21 Ground 22 Ground 23 RESVD1 24 RESVD3 25 Ground 26 Termpwr 27 RESVD2 28 RESVD4 29 Ground 30 Ground 31 Ground 32 Attention 33 Ground 34 Ground 35 Ground 36 BUSY 37 Ground 38 Acknowledge 39 Ground 40 Reset 41 Ground 42 ...

Page 192: ...al 3 Ground 4 Right channel signal Table Appendix A 16 MIDI Joystick Connector Pin Signal 1 5 Vdc 2 Joystick 1 Fire 1 3 Joystick 1 X 4 Ground 5 Ground 6 Joystick 1 Y 7 Joystick 1 Fire 2 8 5 Vdc 9 5 Vdc 10 Joystick 2 Fire 1 11 Joystick 12 Ground MIDI out 13 Joystick 2 Y 14 Joystick 2 Fire 2 15 5 Vdc MIDI in ...

Page 193: ...dependent upon options Minitower Dimensions Width 8 5 inches 22 cm Depth 17 5 inches 44 5 cm Height 15 25 inches 38 cm Weight Weight 30 lb 13 6 kg dependent upon options Keyboard Width 19 0 inches 48 3 cm Depth 8 4 inches 21 3 cm Height 1 6 inches 4 1 cm Weight Weight 3 5 to 4 0 lb 1 6 to 1 8 kg Device Slots Two 5 1 4 inch front access slots three in the minitower One 3 1 2 inch front access slot ...

Page 194: ...y Chip set System Memory Standard Multimedia 8 MB on system board expandable to 128 MB 16 MB on system board expandable to 128 MB Optional SIMMs 4 8 16 32 and 64 MB 32 or 36 bit 70 ns SIMMs Video Interface Cirrus Logic CL DG5434 PCI Bus Video 1 MB video DRAM standard expandable to 2 MB Maximum resolution 1280 x 1024 pixels Battery Real time clock battery module on system board Power Supply 145 Wat...

Page 195: ...COMBO Network interface IEEE 802 31 10Base T and Ethernet IEEE 802 3 industry standard for 10 Mbps CSMA CD local area network Connectors RJ 45 AUI BNC Administrative Compliance UL 1950 safety CSA C22 2 No 950 m89 TUV EN60950 1988 FCC part 15 Subpart J Class B emissions FCC part 68 C R C c 1374 IEC 950 safety VDE 0871 6 78 Class B emissions POWER SUPPLY SPECIFICATIONS Table Appendix B 2 lists the i...

Page 196: ...pendix B 4 Specifications for Diskette Drives Features OSDA 90C 1 44 MB FD 55GFR 1 2 MB Storage Capacity Unformatted 2 0 MB 1 67 MB Formatted 1 44 MB 1 2 MB Recording Density Bit density 17 434 bpi 9870 bpi max Track density 135 tpi 96 tpi Number of Cylinders 80 80 Number of Tracks 160 80 tracks x 2 sides 160 80 tracks x 2 sides Recording Method MFM MFM FM Disk Speed 300 rpm 360 rpm Data Transfer ...

Page 197: ...113 F 5 to 45 C 39 to 115 F 4 to 46 C Relative Humidity Tolerance Range 20 to 80 20 to 80 Power 12 Vdc Not Used 1 19 A start up 5 Vdc 0 87 A start up 0 09 A start up Power Consumption 1 5 W operating 2 6 W operating Error Rate Recoverable 1 per 10 9 1 per 10 9 Non recoverable 1 per 10 12 1 per 10 12 Seeks 1 per 10 6 1 per 10 6 Mean Time Between Failures 12 000 hours 12 000 hours ...

Page 198: ...ata Heads 2 6 Servo Embedded Embedded Tracks per Inch tpi 3300 tpi 3849 tpi Bytes per Block 512 512 Blocks per Drive 528 192 833 010 Dimensions H x W x D 1 0 x 4 0 x 5 75 in 1 0 x 4 0 x 5 75 in Weight 1 2 lb 1 35 lb Performance Track to track Average read Average write 4 0 ms 11 ms2 13 ms2 3 0 ms 11 0 ms 11 5 ms Average Latency 6 67 ms 6 67 ms Rotation Speed 4500 rpm 4500 rpm Data Rate Transfer Bu...

Page 199: ...ew of the Quadruple Speed Reader n Audio output connector Provides the digital audio output from the CD ROM reader to the sound board n Configuration jumpers Sets the configuration for the CD ROM reader to a Master or Slave configuration see Figure Appendix C 2 and the following jumper descriptions n IDE cable connector Connects the IDE interface to the CD ROM reader This connection controls the C...

Page 200: ...wing jumper setting information to set the quadruple speed CD ROM reader to a Master or Slave configuration NOTE The quadruple speed CD ROM reader jumpers are set correctly at the factory Figure Appendix C 2 Quadruple Speed Reader Jumper Settings ...

Page 201: ...he following occurs n A peripheral device uses the same I O addresses DMA channel or interrupt setting as your sound board known as a hardware conflict n Another Joystick Game Connector is installed in the system Changing Hardware Settings Jumper configurations define the hardware settings of the sound board Before actually changing a jumper configuration identify the current and the proposed new ...

Page 202: ...rd To change the configuration of jumpers 1 Power off the computer and all other peripheral devices 2 Remove the system s cover and board from your system 3 Identify the jumpers to change 4 Select the settings for the board by placing the jumper blocks on the desired jumpers ...

Page 203: ...etting shown in Figure Appendix D 2 Figure Appendix D 2 Base I O Address Settings of MPU 401 UART MIDI Joystick Connector The joystick connector on the sound board can be enabled or disabled using jumper JYEN The factory default setting of the joystick connector is enabled If a joystick connector is already in use disable the one on the sound board To change the joystick connector setting enable o...

Page 204: ...d high DMA channels for direct data transfer to the sys tem s memory Low DMA channels 0 1 factory default setting and 3 are used to transfer 8 bit data The low DMA channel setting can be changed using jumpers DAS0 and DAS1 as shown in Figure Appendix D 4 Figure Appendix D 4 Low DMA Channel Settings ...

Page 205: ...gh DMA channels 5 factory default setting 6 and 7 are used to transfer 16 bit data The high DMA channel setting can be changed using jumpers DBS0 and DBS1 as shown in Figure Ap pendix D 5 Figure Appendix D 5 High DMA Channel Settings ...

Page 206: ...O addresses are available for the audio interface 220H factory default setting 240H 260H and 280H To change the base I O address enable the jumpers corresponding to the settings shown in Figure Appendix D 6 Figure Appendix D 6 Base I O Address Settings for the Audio Interface ...

Page 207: ...or the audio interface IRQ 2 5 7 factory default setting and 10 The IRQ line setting can be changed using jumpers IS0 and IS1 To change the IRQ line enable the jumpers corresponding to the setting shown in Figure Appendix D 7 Figure Appendix D 7 IRQ Line Settings for the Audio Interface ...

Page 208: ...vailable on the sound board to enable its MPU 401 UART MIDI Interface The default setting of this jumper MPUEN is enabled see Figure Appendix D 8 Remove the jumper block if it is necessary to disable the interface Figure Appendix D 8 MPU 401 UART MIDI Settings ...

Page 209: ...rgy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct...

Page 210: ... Il y a danger d explosion s il y a replacement incorrect de la batterie Remplacer uniquement avec une batterie du même type ou d un type recommandé par le constructeur Mettre au rébut les batteries usagées conformément aux instructions du fabricant BATTERY DISPOSAL Do not place used batteries in your regular trash The nickel cadmium or nickel metal hydride batteries must be collected recycled or ...

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