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Minitower Repair 6-3

Top Cover Removal

Use the following procedure to remove the top cover.

NOTE:

Unplug the power cord before disas-

sembling the system unit. Voltage is present in-
side the system unit even after the power is off.
All voltage is removed only when the power
cord is unplugged.

Power off and unplug the keyboard, mouse, power and all other peripheral cables
attached to the system unit.

Remove the three cover screws.

Figure Section 6-1 Top Cover Screws

Содержание POWERMATE V486 - SERVICE

Страница 1: ... 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 determined by the customer and ...

Страница 2: ... 1 9 Interrupt Controller 1 10 Video Controller 1 11 Video Memory 1 11 Dual IDE Ports 1 14 ISA PCI Bus Backboard 1 14 ISA Bus 1 14 PCI Bus 1 15 Parallel Interface 1 15 Serial Interface 1 16 Indicator Panel 1 16 Power Button 1 17 Suspend Button 1 17 Lamps 1 17 Power Supply 1 17 Diskette Drive 1 17 Hard Disk Drive 1 18 Multimedia Components 1 18 CD ROM 1 18 Sound Board 1 18 Speakers 1 19 Microphone ...

Страница 3: ...media Connections 2 7 Sound Board Jacks 2 8 Connecting the Speakers 2 9 Network Connectors 2 10 System Configuration 2 12 Setup Utility 2 12 How to Start Setup 2 13 How to Use Setup 2 13 Menu Bar 2 14 Legend Bar 2 15 Field Help Window 2 15 General Help Window 2 16 Main Menu Options 2 16 IDE Adapters 2 17 Memory Shadow 2 18 Boot Sequence 2 19 Numlock 2 19 Advanced Menu 2 20 Integrated Peripherals M...

Страница 4: ...rd Installation 3 7 SIMM Upgrade Kits 3 8 Cautions 3 8 SIMM Installation 3 9 Checking the Memory in the System 3 9 Installing SIMMs 3 11 Secondary Cache 3 14 Video Upgrade 3 17 Overdrive Processor Installation 3 19 Storage Devices 3 23 Diskette Drive 3 23 Diskette Drive Settings 3 23 Hard Disk Drives 3 24 Hard Disk Drive Settings 3 24 Desktop Storage Device Installation 3 25 Removing the 3 1 2 inc...

Страница 5: ... 1 Top Cover Removal 5 3 Expansion Board Removal 5 4 PCI ISA BUS Backboard Removal 5 6 Front Panel Assembly Removal 5 6 Power Button Cover Removal 5 8 Speaker Assembly Removal 5 9 SIMM Removal 5 10 3 1 2 inch Diskette and Hard Disk Drive Removal 5 11 5 1 4 Inch Device Removal 5 13 5 1 4 Inch Device Cage Removal 5 14 Power Supply Removal 5 15 System Board Removal 5 16 Battery Removal 5 18 Illustrat...

Страница 6: ...nector Pin Assignments Serial Interface Connectors A 3 Parallel Interface Connector A 4 VGA Interface Connector Pin Assignments A 5 Speaker Connector Pin Assignments A 5 Power Supply Connector A 6 Keyboard and Mouse Connectors A 6 Power Lamp Connector A 7 Hard Disk Drive Lamp Connector A 7 Reset Button Connector A 7 Diskette Drive Interface Pin Assignments A 8 IDE Interface Connectors A 9 SIMM Soc...

Страница 7: ...1 Password Clear Jumper 2 29 2 12 Secondary Cache Jumpers 2 30 2 13 Processor Clock Speed Jumper 2 30 2 14 Processor Voltage Jumpers 2 30 2 15 Jumpers JP3 through JP9 JP11 JP21 through JP23 2 31 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 5 3 7 R...

Страница 8: ...nel 3 29 3 33 Connecting IDE Device Cables 3 30 3 34 Connecting 1 2 MB Diskette Drive Cables 3 30 3 35 Securing a 3 1 2 Inch Device to the Bracket 3 31 3 36 Securing the Device in the 5 1 4 Inch Slot 3 31 3 37 Securing the 3 1 2 Inch Drive Bracket 3 32 3 38 System Board Cable Connectors in the Minitower 3 33 3 39 Locating the Slot Cover 3 34 3 40 Connecting IDE Device Cables 3 34 3 41 Connecting 1...

Страница 9: ... V486 Desktop Illustrated Parts Breakdown 5 20 6 1 Top Cover Screws 6 3 6 2 Removing the Top Cover 6 4 6 3 Expansion Slot Screw 6 5 6 4 PCI ISA Bus Backboard Bracket Screws 6 6 6 5 PCI ISA Bus Backboard Screws 6 6 6 6 Front Panel Screws 6 7 6 7 Power Button Tabs 6 8 6 8 Speaker Tabs 6 9 6 9 Removing a SIMM 6 10 6 10 3 1 2 Inch Diskette Drive Cables 6 11 6 11 Diskette Drive Bracket Screws 6 12 6 12...

Страница 10: ...1 15 1 8 Serial Port Addressing and Interrupts 1 16 2 1 Setup Key Functions 2 15 2 2 Legend Bar Main Menu Parameters 2 16 2 3 IDE Hard Disk Parameters 2 18 2 4 Memory Shadow Parameters 2 18 2 5 Boot Parameters 2 19 2 6 Numlock Parameters 2 20 2 7 Integrated Peripherals Parameters 2 21 2 8 Large Disk Parameters 2 22 2 9 System Security Options 2 23 2 10 Power Management Parameters 2 24 3 1 Memory C...

Страница 11: ...ts List 6 22 6 4 PowerMate V466 Minitower Options 6 25 6 5 PowerMate V466 Minitower Documentation and Packaging 6 26 A 1 System Board Connectors A 2 A 2 Video Connector J17 Pin Assignments A 5 A 3 Speaker Connector J18 Pin Assignments A 5 A 4 Keyboard J1 and Mouse J2 Connector Pin Assignments A 6 A 5 Power Lamp Connector J9 Pin Assignments A 7 A 6 Hard Disk Drive Busy Lamp Connector JP15 Pin Assig...

Страница 12: ...Contents xiii ...

Страница 13: ... 4 Maintenance and Troubleshooting includes a list of NEC service information and telephone numbers that provide access to the NEC Bulletin Board System BBS FastFacts and Technical Information Bulletins This section also includes recommended maintenance information and a list of possible solutions for computer problems Section 5 Desktop Repair includes desktop disassembly and reassembly procedures...

Страница 14: ... pin assignments and Appendix B provides specifications An overview of each of the two system units are described in the following subsections DESKTOP SYSTEM UNIT The desktop chassis provides an enclosure for the system board power supply four storage device slots and four expansion slots three ISA and one ISA PCI Bus A sound board is installed in one of the expansion slots in multimedia models Th...

Страница 15: ...d in one of the expansion slots in multimedia models The storage device slots accommodate a 3 1 2 inch diskette drive a 3 1 2 inch hard disk 1 inch height and two 5 1 4 inch storage devices 1 6 inch height The system ships with a 3 1 2 inch disk ette drive A 3 1 2 inch hard disk drive 540 MB IDE and 5 1 4 inch CD ROM reader are available on various models The following figures show front panel fea...

Страница 16: ...on 2 See Section 2 Setup and Operation for a description of the system board s jumpers See Appendix A Connector Pin Assignments for a list of the system board connectors Key features of the system board are listed below n processor PowerMate V466 Intel486DX2 66 PowerMate V4100 Intel486DX4 100 n clock rate PowerMate V466 66 megahertz MHz internal 33 MHz external PowerMate V4100 100 MHz internal 33 ...

Страница 17: ...256 colors and 1280 x 1024 with 16 colors 1 MB video dynamic RAM DRAM expandable to 2 MB n external input output I O connectors parallel one 25 pin connector serial two RS 232C ports support asynchronous communication up to 9600 bps 9 pin connectors VGA video monitor supports standard super and high resolution VGA modes 15 pin connector D shell keyboard PS 2 compatible 6 pin connector mini DIN mou...

Страница 18: ...reen Chipset 496 PCI CPU memory and IDE controller 497 interface between PCI CPU memory bus and ISA bus ISA interface DMA controller interrupt controller counter timers NMI control logic power management and real time clock SMC37C665GT Super I O controller serial interface 16550 parallel interface ECP EPP diskette drive 1 44 and 1 2 MB AmiKey keyboard mouse controller Intel 8049 compatible Trident...

Страница 19: ...rocessor Cache memory improves read performance by holding copies of code and data that are frequently requested from the system memory by the processor Cache memory is not considered part of the possible 64 MB of total memory capacity The cache is connected directly to the processor address bus and uses physical addresses A bus feature known as burst enables fast cache fills Memory areas pages ca...

Страница 20: ... 128 KB Mapped to either on board video memory or ISA video memory 0C0000 0C7FFF 32 KB Mapped to either on board video BIOS or ISA video BIOS 0C8000 0EFFFF 160 KB Mapped to ISA bus 0F0000 0FFFFF 64 KB Reserved for system BIOS 100000 FDFFFF 14 9 MB Reserved for Extended and or Expanded system memory FE0000 FFFFFF 128 KB Mapped to ISA bus 1000000 On Board 14 9 MB Reserved for Extended and or Expande...

Страница 21: ...d 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 mapping The hexadecimal hex ad dresses of I O devices are listed in Table Section 1 5 Table Section 1 5 I O Address Map Address Hex I O Device Name 000 01F DMA controller 1 channel 0 3 020 03F Interrupt controller 040 05F Timer 060 063 PPI Programmable Periphera...

Страница 22: ...play adapter printer 1 3C0 3CF Enhanced Graphics Adapter EGA 1 3D0 3DF Color Graphics Adapter CGA and EGA 3F0 3F7 Diskette Controller 3F8 3FF Serial Port 1 System Memory The Power V486 system boards come standard with 8 MB of RAM PowerMate V4100 multimedia systems come with 16 MB The first megabyte includes the standard 640 KB of base memory The remaining memory is extended memory Two SIMM sockets...

Страница 23: ...s issues interrupt requests to the processor resolves interrupt priorities and provides vectors for the processor to determine which in terrupt routine to execute The interrupt controller has priority assignment modes that can be reconfigured at any time during system operations The interrupt levels are described in Table Section 1 7 See Section 2 Setup and Configu ration for information on changi...

Страница 24: ...d movement into video memory are criti cal factors in graphics performance The graphics accelerator is specifically designed for graphics intensive operations text and color pixel amplification and scrolling The accelerator minimizes bus traffic by off loading the tasks normally performed by the processor In addition to the standard VGA connector the system provides a VESA compliant feature connec...

Страница 25: ...02 2 16 grey 80 x 25 B8000 640 x 350 28 2 31 7 70 02 3 16 80 x 25 B8000 720 x 400 28 2 31 7 70 03 1 16 80 x 25 B8000 640 x 200 28 2 31 7 70 03 2 16 80 x 25 B8000 640 x 350 28 2 31 7 70 03 3 16 80 x 25 B8000 720 x 400 28 2 31 7 70 07 4 mono 80 x 25 B8000 720 x 350 28 2 31 5 70 07 3 mono 80 x 25 B8000 720 x 400 28 2 31 5 70 60 5 16 132 x 25 B8000 1056 x 400 40 0 30 5 67 5 24 5 16 132 x 30 B8000 1056...

Страница 26: ...x 600 25 2 31 5 60 24 2 3 16 128 x 48 A0000 1024 x 768 32 6 31 5 73 30 2 256 80 x 30 A0000 640 x 480 36 0 35 5 56 32 2 256 100 x 37 A0000 800 x 600 40 0 38 0 60 34 2 3 256 128 x 48 A0000 1024 x 768 50 4 48 4 73 38 2 3 256 80 x 25 A0000 1280 x 1024 25 2 31 5 70 40 2 32k 80 x 30 A0000 640 x 480 25 2 31 5 60 41 2 64k 80 x 30 A0000 640 x 480 32 6 31 5 73 42 2 32k 100 x 37 A0000 800 x 600 25 2 31 5 70 ...

Страница 27: ...fers on the high performance VESA local bus VL bus Stan dard IDE supports 2 MB to 3 MB per second on the ISA bus In hard disk configurations the standard hard disk is connected to the fast IDE port for high performance ISA PCI BUS BACKBOARD The ISA PCI bus backboard plugs into two bus connectors on the system board The back board provides expansion slots for additional circuit boards The backboard...

Страница 28: ...ALLEL INTERFACE The system has a 25 pin parallel port on the system board Specifications for this port con form to the IBM PC standards The BIOS has automatic ISA printer port sensing If the BIOS detects an ISA printer port mapped to the same address the built in printer port is disabled The BIOS also sets the first parallel interface port it finds as LPT1 and the second port it finds as LPT2 The ...

Страница 29: ...e shown in Appendix A NOTE Interrupts used for the built in serial ports are not available for ISA parallel ports Table Section 1 15 Serial Port Addressing and Interrupts Starting I O Address Interrupt Level Port 3F8 IRQ04 COM1 2F8 IRQ03 COM2 3E8 IRQ04 COM3 2E8 IRQ03 COM4 Default for serial port Serial interface specifications include n Baud rate up to 19 2 KB per second n Word length 5 6 7 or 8 b...

Страница 30: ...etup and Operation for information about using power saving modes n The disk lamp green indicates when a hard disk is performing a read or write operation POWER SUPPLY The power supply is mounted inside the system unit It supplies power to the system board option boards diskette drives hard disks keyboard and mouse Two connectors connect the power supply to the system board A fan inside the power ...

Страница 31: ...escribed in Section 2 Setup and Operation The CD ROM reader may be used to load programs from a CD The CD ROM reader can also be used to play audio CDs The CD ROM reader is assigned as drive E Sound Board The sound board is the Creative Labs Sound Blaster The sound board is installed in the ISA backboard System settings for the sound board can be found in a sound board direc tory on the system s h...

Страница 32: ...jacks on the sound board located at the back of the system unit see Section 2 Setup and Operation Speaker features are as follows n 3 inch magnetically shielded full range speakers n Bass DXBB boost switch n Treble boost switch n Built in power booster n Power source four C batteries not included or optional 6 volt V AC power adapter n Speaker impedance 8 ohms n Power output 3 6 watts n Frequency ...

Страница 33: ...d security Desktop Management Interface Desktop Management Interface DMI provides tracking information about the system at power on At power on the system displays the system model number and the system board serial number which is created during manufacturing at NEC DMI helps the user or service technician by providing information for quick technical sup port or software and hardware upgrades Plu...

Страница 34: ...allows access to the system s Setup utility for system configuration A user password allows system boot up only after the entry of a password n Diskette Drive Access Protection includes support for locking out diskette drive access when a user password is provided n Fixed Disk Boot Sector provides a Write Protected option that helps prevent viruses n Backup Reminder Message displays a periodic rem...

Страница 35: ... REPACKING Find an area away from devices that generate magnetic fields electric motors transform ers etc Place the carton on a sturdy surface and carefully unpack the system The carton contents include the system unit keyboard mouse speakers power cord user documenta tion CD ROM disc with hotload backup and system recovery diskette Repack the system using the original shipping carton and packing ...

Страница 36: ...ystems by making the following connections See the following sub section Minitower Setup if setting up a minitower computer 1 At the rear of the system set the voltage selector switch to 115V or 230V and in sert the power cord into the system power socket CAUTION The correct AC input voltage must be properly set Select the appropriate voltage with the voltage selector switch located at the rear of...

Страница 37: ...section for multimedia and network connections Figure Section 2 2 Peripherals Connections 4 Press the power button to power on the system The indicator lamps and reset button are also identified in the figure Figure Section 2 3 Lamps Reset Button and Power Button The system has a built in checking program that automatically tests the components at power on One beep indicates that the system has su...

Страница 38: ...ed 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 the power switch for the system unit and monitor are on n all cables and power cords are tightly connected n the electrical outlet is working n the monitor s brightness and contrast are adjusted properly n al...

Страница 39: ...ng up a desktop computer 1 At the rear of the system set the voltage selector switch to 115V or 230V and in sert the power cord into the power socket 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 system Figure Section 2 4 Minitower Voltage Selector Switch ...

Страница 40: ...l See External Multimedia Connections and Network Connectors later in this subsection for multimedia and network connections Figure Section 2 5 Minitower Peripherals Connections 4 Press the power button to power on the system The user lamps and reset button are also identified in the figure Figure Section 2 6 Minitower Indicators Reset Button and Power Button ...

Страница 41: ...er 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 the power switch for the system unit and monitor are on n all cables and power cords are tightly connected n the electrical outlet is working n the monitor s brightness and contrast are adjusted properly n all options are properly installed see Sect...

Страница 42: ...nects a microphone for voice input n Line Out Jack bypasses the sound board s internal amplifier to connect pow ered speakers or an external amplifier for audio output This is the jack to use for the speakers shipped with the system n Speaker Jack connects speakers for audio output from the sound board s built in power amplifier The built in amplifier has a maximum output power of four watts per c...

Страница 43: ...s conflict remove either the game board or disable the joystick connector on the sound board by removing the jumper block from Jumper JYEN Connecting the Speakers The speakers will operate once they are connected to the sound board To utilize the built in amplifier for treble and bass control and additional volume connect the AC adapter that is included Connect the speakers to the system unit as f...

Страница 44: ...etwork Connectors 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 bit Etherlink network interface board Features are as follows n Hardware Plug and Play is supported n Hardware configuration is software selectable no jumpers or switches to set n Includes AutoLink auto installation ...

Страница 45: ...The network interface board has connectors for thin thick or twisted pair Ethernet con nections A Network Interface Card User s Guide and drivers ship with network configured systems Call the network administrator to install the appropriate drives Use the following figures to select the appropriate connections Figure Section 2 9 Network Board Connectors ...

Страница 46: ... battery supplies continuous power to the CMOS memory and maintains configuration information when system power is off Setup Utility The Setup utility is used to view and set system parameters Use the Setup utility program n to set the time and date n to update or check system parameters when adding or removing expansion op tions n to correct a hardware discrepancy when the Power On Self Test POST...

Страница 47: ... 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 Technologies Ltd Main Advanced Security Po...

Страница 48: ...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 inter rupts to enable disable the system s diskette drive controller and dual IDE con trollers The Advanced menu also provides menu items for setting parity and for setting p...

Страница 49: ...e Selects the Next Value for the field F9 Loads the Default Configuration values for this menu F10 Loads the Previous Configuration values for this menu Enter Executes Command or Selects submenu Alt R Refreshes screen 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 Values ...

Страница 50: ...mary window have a right pointing triangle next to the parameter Use the arrow keys to move the cursor to parameter and press Enter to select 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 ...

Страница 51: ...hannel the combination be comes 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 Select the IDE Adapter option configuration directly from the Main Menu summary win dow Available options include n IDE Adapter 0 Master n IDE Adapter 0 Slave n IDE Adapter 1 Master n IDE Adapter 1 Slave IDE Adapter 0 configures the f...

Страница 52: ...e Precomp 1 to 2048 None Specifies number of the cylinder at which to change the write timing IDE drives do not require setting Landing Zone and Write Precomp Memory Shadow For memory shadowing parameters select Memory Shadow directly from the Main Menu summary window See the following table for a description of Memory Shadow pa rameters CAUTION Incorrect settings can cause the system to malfuncti...

Страница 53: ...r password control provides virus protection Setup prompt Enabled default Disabled Displays Press F2 for Setup during bootup POST errors Enabled default Disabled At boot error pauses and displays Press F1 to resume F2 for Setup Floppy check Enabled default Disabled Seeks diskette drives during bootup Disabling speeds boot time Summary screen Enabled default Disabled Describes system configuration ...

Страница 54: ...g the Advanced menu might require a Supervisor password Selecting Ad vanced from the menu bar on the Main Menu displays a menu with the following options n Integrated Peripherals n Parity n Large Disk Access Mode The following sections describe Advanced menu options CAUTION Setting items in this menu to incor rect values can cause the system to malfunction Integrated Peripherals Menu Select Integr...

Страница 55: ...Disabled 378 IRQ 7 default User selectable settings Auto Selects a unique address and interrupt request for the LPT port Auto selects the next available combination The LPT port setting must match the system board JP9C jumper setting later in this section Diskette Controller Enabled default Disabled Enables the on board diskette drive controller IDE Controller Enabled default Disabled Enables the ...

Страница 56: ...ing Security from the Main Menu displays a menu with system security options NOTE Enter the Setup program with either a User or Supervisor password However more Setup choices are available with the Supervisor password CAUTION The features set in the Security menu affect the features that appear on the Secu rity menu as well as on other Setup menus Enabling Supervisor Password requires a password f...

Страница 57: ...on boot cold boot only no password required for warm boot Requires prior setting of the Supervisor and or User password If disabled password s are required for entering Setup but are not required for booting If Supervisor password is set and this option is disabled the BIOS boots without asking for a password Diskette access Supervisor default User Supervisor restricts use of diskette drives to su...

Страница 58: ...ustomize to select the level of power management Disabled turns off power management when the appropriate power statement is modified in the CONFIG SYS file see the following procedure Suspend Timeout Disabled default User selectable Inactivity period required after Standby to Suspend maximum power shutdown Fixed Disk Timeout Disabled default User selectable Inactivity period of fixed disk require...

Страница 59: ...ys select Save to make them opera tive Unlike standard RAM memory NVRAM is sustained by an onboard battery when the sys tem off After saving the selections the program displays this message Changes have been saved Press space to continue A prompt appears if attempting to exit without saving During bootup Setup attempts to load the values saved in NVRAM If the values saved in NVRAM cause the system...

Страница 60: ... incorrectly perhaps by an application program that changes data stored in CMOS Press F1 to resume the boot or F2 to run Setup with the ROM default values already loaded into the menus Other changes can be made before saving the values to NVRAM Load Previous Values During a Setup session if a mistake has been made and has not yet saved to NVRAM the previously saved NVRAM values can be restored Sel...

Страница 61: ...rminal 2 From the Settings menu select Communications and check that the settings match the following 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 prom...

Страница 62: ... following n adding secondary cache to the system n upgrading the processor n forgetting the system password CAUTION Jumpers are set correctly at the factory Only change or check the appropriate jumper setting if adding secondary cache forgot the password or upgrading the processor Other wise keep the jumpers at their factory settings The following figures show jumper locations on the system board...

Страница 63: ...Setup and Operation 2 29 Figure Section 2 10 System Board Jumpers Figure Section 2 11 Password Clear Jumper ...

Страница 64: ...2 30 Setup and Operation Figure Section 2 12 Secondary Cache Jumpers Figure Section 2 13 Processor Clock Speed Jumper Figure Section 2 14 Processor Voltage Jumpers ...

Страница 65: ...gs use the following procedure Use needle nose pli ers to move a jumper CAUTION If system conditions require dis abling the password see the following section Clearing the Password 1 Power off and unplug the system and any external options WARNING The system power must be off be fore changing a jumper setting 2 Remove the system unit cover see Section 3 ...

Страница 66: ...stem and any external options 2 Remove the system unit cover see Removing the Cover in Section 3 3 Locate jumper JP2 on the system board see Figure Section 2 11 earlier in this section 4 If required remove any installed expansion boards to access the jumper see Board Removal in Section 3 5 Set a jumper on the JP2 pins 1 and 2 6 Replace the system unit cover see Section 3 7 Connect system power cab...

Страница 67: ...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 posi tion it was installed WARNING Unplug the power cord before dis assembling the system unit Voltage is present inside...

Страница 68: ...plug the keyboard mouse power and all other peripheral cables attached to the system unit 2 Remove the two cover screws Figure Section 3 1 Desktop Cover Screws 3 Slide the top cover toward the rear about one inch 4 Lift the top cover up and off Figure Section 3 2 Removing the Desktop Cover ...

Страница 69: ...EMOVAL Remove the minitower 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 three cover screws Figure Section 3 3 Minitower Cover Screws ...

Страница 70: ...lots n three ISA slots in the desktop system four ISA slots in the minitower system n one shared PCI ISA slot ISA expansion slots support industry standard 8 bit or 16 bit expansion boards The PCI ISA slot also supports PCI expansion boards PCI expansion boards run at the system s processor speed The PCI bus handles 32 bits of data at a time being wider as well as faster than the standard ISA bus ...

Страница 71: ...2 Remove the expansion slot screw and cover Save the expansion slot cover in the event the expansion board is removed in the future To remove the expansion slot cover on the inside of the PCI ISA backboard re move the expansion slot screws shown in Figure Section 3 6 Figure Section 3 5 Desktop Expansion Slots Figure Section 3 6 Inside Expansion Slot Screw ...

Страница 72: ...g installed Figure Section 3 7 Removing the L Bracket 4 Install the expansion board into an expansion slot connector When installing a full size expansion board make sure that the expansion board slides into the guide rail at the front of the system unit NOTE A full size expansion board cannot be installed into the inside expansion slots 5 Reinstall the expansion slot screw to secure the expansion...

Страница 73: ...over in the event the expansion board is removed in the future Figure Section 3 9 Minitower Expansion Slots 3 Install the expansion board into an expansion slot connector When installing a full size expansion board make sure that the expansion board slides into the guide rail at the front of the system unit 4 Reinstall the expansion slot screw to secure the expansion board 5 Connect any expansion ...

Страница 74: ...em board also supports 36 bit parity SIMMs SIMM sticks install in two sockets on the system board The system supports up to 64 MB of high speed memory Different size SIMMs may be intermixed Use the following procedures to install a SIMM stick CAUTION Static discharge can damage SIMM components Heed the cautions in the following section Cautions Always remove a SIMM from its shipping material caref...

Страница 75: ...he following procedure to locate SIMM sockets and to check the memory configura tion in the system 1 Remove the top cover and any expansion boards covering the socket as previ ously described 2 Locate the two SIMM sockets SIMM socket 1 and SIMM socket 2 on the sys tem board Figure Section 3 9 Locating SIMM Sockets In The Desktop ...

Страница 76: ...her systems ship with 8 MB of memory For optimized performance fill SIMM sockets according to the following table using 4 MB 8 MB 16 MB and 32 MB sticks Table Section 3 1 Memory Configurations Total Memory SIMM Socket 1 SIMM Socket 2 4 MB 4 MB Empty 8 MB 8 MB 4 MB 8 MB 4 MB Empty 12 MB 12 MB 8 MB 4 MB 4 MB 8 MB 16 MB 16 MB 8 MB 16 MB 8 MB Empty 20 MB 20 MB 4 MB 16 MB 16 MB 4 MB 24 MB 24 MB 8 MB 16...

Страница 77: ...timedia systems with a DX4 processor Standard configuration for all multimedia systems with a DX4 processor Installing SIMMs Use the following procedure to install SIMM sticks NOTE If you remove the IDE and floppy cable from the system board to get better access to SIMM sockets note where pin 1 is located 1 Remove the SIMM in SIMM socket 1 NOTE If installing a SIMM in socket 2 first remove the SIM...

Страница 78: ...ay from the locking tabs and remove it from the socket Figure Section 3 11 Removing a SIMM 2 Install a SIMM as follows CAUTION Before installing a SIMM reduce static discharge by touching the system s metal chassis n Locate the notched end of the SIMM Figure Section 3 12 Locating the Notched End of the SIMM ...

Страница 79: ...he SIMM push it until it locks under the metal clips at the ends of the socket Figure Section 3 13 Inserting the SIMM 3 Replace any removed expansion boards and the system unit cover 4 Connect external peripherals and power cables 5 Power on the system If there is a discrepancy in the amount of memory that the Power On Self Test finds with the amount of memory that was installed check that the SIM...

Страница 80: ...wing steps to install the secondary cache modules 1 Remove the system unit cover and any expansion boards covering the cache socket as previously described 2 Locate the cache module sockets on the system board NOTE In the desktop system the 3 1 2 inch drive bracket might have to be removed to ac cess the tag cache socket To remove the 3 1 2 inch drive bracket see In stalling a Storage Device in th...

Страница 81: ... Cache Sockets in the Minitower 3 Install the tag cache module as follows n Locate the notched end of the cache module n Align the notched end of the module with the notched end of the tag cache socket Figure Section 3 16 Aligning the Cache Module ...

Страница 82: ...e ends of the cache module push it downwards un til it is fully seated in the socket Figure Section 3 17 Installing the Cache Module 4 Repeat step 3 to install the other four cache modules 5 Configure the system for 256 KB of secondary cache by setting the following jumpers on the system board n JP16 set a jumper on pins 2 and 3 n JP17 set a jumper on pins 1 and 2 See Section 2 to locate and set t...

Страница 83: ... increases video performance and allows the system to display more colors at higher resolutions Use the following steps to upgrade video memory in the system 1 Remove the system unit cover and any expansion boards covering the video memory sockets as previously described 2 Locate the video DRAM sockets on the system board Figure Section 3 18 Locating Video DRAM Sockets in the Desktop ...

Страница 84: ...lectricity by touch ing the metal frame of the system unit n Locate the notched end of the video DRAM socket see the following figure n Align the notched end of the module over the notched end socket n Carefully insert the video DRAM module into the socket Using equal pres sure gently press down until the module is fully seated in the socket ...

Страница 85: ...rid array PGA processors including primary processors such as 486DX2 and DX4 chips and OverDrive processors Use the following procedures to install the chip upgrades in the system CAUTION Incorrect installation of the chip can damage the chip system board or both Follow the installation instructions carefully CAUTION The system requires a heatsink on the upgrade chip Heatsinks are available throug...

Страница 86: ...e the top cover and any expansion boards covering the PGA OverDrive socket as previously described 2 Locate the PGA OverDrive socket on the system board Figure Section 3 21 Locating the PGA OverDrive Socket in the Desktop ...

Страница 87: ...igure Section 3 22 Locating the PGA OverDrive Socket in the Minitower 3 Lift the PGA OverDrive socket lever all the way back and remove the processor currently installed Figure Section 3 23 PGA OverDrive Socket Lever ...

Страница 88: ...otched corner with inner align ment hole of the socket Figure Section 3 24 OverDrive Processor Alignment 5 Set the jumper settings for the installed OverDrive processor see Section 2 Setup and Operation 6 Replace any removed expansion boards 7 Replace the top cover and run Setup to reconfigure the computer for the Over Drive processor see Section 2 Setup and Operation ...

Страница 89: ... drive 3 1 2 inch is drive A the second diskette drive if installed is drive B The diskette drive controller is incorporated into the system board The controller contains the circuitry and control functions needed to support up to two diskette drives Diskette Drive Settings The standard 1 44 MB diskette drive setting is shown in Figure Section 3 25 The default settings for the optional 1 2 MB disk...

Страница 90: ...media systems When installing a second hard disk drive use the open IDE connector on the cable coming from the Fast local bus system board IDE connector A hard disk controller board is not re quired The IDE drives described in this section are thin height 1 inch x 3 1 2 inch drives Hard Disk Drive Settings The following IDE hard disk drives are available for installation in the system Systems come...

Страница 91: ...tions on the system board and power supply NOTE Do not remove the 5 1 4 inch blank panel when installing a hard disk drive A 3 1 2 inch hard disk drive must be mounted in a 5 1 4 inch bracket when installing it in a 5 1 4 inch storage slot Cable Select Configuration Dual Drives Two drives installed Master Two drives installed Slave One drive installed Factory Setting Front of Drive Signal Connecto...

Страница 92: ...3 26 Options Figure Section 3 29 System Board Cable Connections in the Desktop ...

Страница 93: ...ows 1 Remove the top cover as previously described 2 Remove the four 3 1 2 inch drive bracket screws see Figure Section 3 30 3 Without removing the power and signal cables place the 3 1 2 inch bracket with the diskette drive and hard disk drive attached on the power supply Figure Section 3 30 3 1 2 Inch Drive Bracket Screws ...

Страница 94: ...emove the front panel assembly from the desktop chassis as follows 1 Remove the desktop cover and 3 1 2 inch diskette drive bracket as previously described 2 Remove the five front panel screws Figure Section 3 31 Removing the Indicator Panel ...

Страница 95: ...he Storage Device Install the device into the device slot as follows 1 Remove the top cover front panel and 3 1 2 inch drive bracket as previously de scribed 2 Insert the device connector end first into the device slot 3 Connect the device cables as follows n If installing an IDE device such as an IDE hard disk connect the IDE cable and power cable NOTE If installing a hard disk use the IDE ca ble...

Страница 96: ...hat come with the reader n If installing a 1 2 MB diskette drive connect the diskette drive signal cable and power cable NOTE The installation of a second diskette drive requires the removal of the standard two connector diskette drive cable and the installa tion of a three connector cable Figure Section 3 34 Connecting 1 2 MB Diskette Drive Cables ...

Страница 97: ...re the device to the bracket with the screws that come with the drive Use three screws two screws on one side one screw on the other side Figure Section 3 35 Securing a 3 1 2 Inch Device to the Bracket 5 Secure the device in the 5 1 4 inch slot using four screws two on each side Figure Section 3 36 Securing the Device in the 5 1 4 Inch Slot ...

Страница 98: ...lot Secure the device bracket in place with the four screws removed earlier Figure Section 3 37 Securing the 3 1 2 Inch Drive Bracket 7 Replace the system unit cover 8 Connect external peripherals and power cables 9 Run the Setup program to set the new configuration see Section 2 ...

Страница 99: ...h blank panel when installing a hard disk drive A 3 1 2 inch hard disk drive must be mounted in a 5 1 4 inch bracket when installing it in a 5 1 4 inch storage slot Figure Section 3 38 System Board Cable Connectors in the Minitower 1 Remove the minitower cover as previously described 2 Remove the metal slot cover by pushing the cover out of the slot from inside the system Store the slot cover If t...

Страница 100: ...slot 4 Connect the device cables as follows n If installing an IDE device connect the appropriate IDE cable and power ca ble NOTE If installing a hard disk use the IDE ca ble attached to the fast IDE port IDE1 connec tor for the best performance Figure Section 3 40 Connecting IDE Device Cables ...

Страница 101: ...r n If installing a 1 2 MB diskette drive connect the diskette drive signal cable and power cable NOTE The installation of a second diskette drive requires the removal of the standard two connector diskette drive cable and the installa tion of a three connector cable Figure Section 3 41 Connecting 1 2 MB Diskette Drive Cables ...

Страница 102: ...gn the holes in the device with the holes in the device bracket n Secure the device to the bracket with the four screws that come with drive two screws on each side Figure Section 3 42 Securing a 3 1 2 Inch Device Figure Section 3 43 Securing a 5 1 4 Inch Device ...

Страница 103: ...lank panel for the device slot that contains the new device Remove the blank panel by pressing the panel tabs inward from inside of the cover and pushing the blank panel out Figure Section 3 44 Locating the Blank Panel Tabs 7 Replace the system unit cover 8 Connect external peripherals and power cables 9 Run the Setup program to set the new configuration see Section 2 ...

Страница 104: ...following steps to connect a parallel printer to the system unit 1 Turn off and unplug the system unit and any external options connected to the system unit 2 Make sure that the printer power is off and the power cable is unplugged 3 Connect the printer cable to the printer port on the rear of the system unit Secure the cable as follows n Secure the system unit connection with the screws provided ...

Страница 105: ...se the following procedure to connect an RS 232C device such as a pointing device or serial printer to the computer 1 Turn off and unplug the system unit and any external option connected to the system unit 2 Make sure that any power to the RS 232C device is off and the power cable is unplugged ...

Страница 106: ...32C cable to one of the system s serial ports and to the device Secure the cable with the screws provided Figure Section 3 47 Connecting an RS 232C Cable to the Desktop Figure Section 3 48 Connecting an RS 232C Cable to the Minitower ...

Страница 107: ...appropriate 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 ...

Страница 108: ...lugged 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 cle...

Страница 109: ...s sembly 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 ac cidentally gets wet thorough...

Страница 110: ...unterclockwise 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 the mouse socket 6 Replace the mouse ball into its socket 7 Replace the ball cover and turn it clockwise until it lock...

Страница 111: ...t the system does not contain a Flash ROM The utility cannot be used Contact technical support for update information A message states that the system s version of BIOS cannot be updated by diskette because it s not a supported version Contact technical support for update information An error indicates that the system BIOS reprogramming is not enabled or possibly that no Flash ROM is installed The...

Страница 112: ...System Recovery diskette into disk ette drive A The diskette comes with the system 3 Power on the system unit and monitor A menu appears 4 Type 2 to select Remote Support Session A batch file is executed and both the chat and log features are enabled by TSC TSC uses the chat feature to inform the caller of what actions are being taken and to notify the caller that the keyboard will be locked up wh...

Страница 113: ...ed AC power outlet 2 Check cable connections between power supply and system board 3 Systematically eliminate possibly shorted PCBs by removing cables and expansion boards 4 Check the 5 and 12 power supply voltages see Appendix A Connector Pin Assignments Measure voltages with the system board installed 5 Replace power supply 6 Replace system board Power supply malfunction Any one or more of the f...

Страница 114: ...parameters 2 Replace the battery if the date and time must be set each time the computer is powered on Computer halts during loading sequence 1 Power the computer off Check for proper jumper settings see Section 2 then power on the computer 2 Check condition of selected bootload device diskette or hard disk for bad boot track or incorrect OS files 3 Try booting OS from diskette or recopy OS files ...

Страница 115: ...ystem board or hard disk controller PCB if system board is not used Memory malfunction Total memory is not recognized 1 Reseat SIMMs 2 Systematically swap SIMMs 3 Check to see if the SIMM configuration is valid See Section 3 3 Replace SIMMs 4 Replace system board Sound board malfunctions No output from both the 8 bit and 16 bit digitized sounds 1 Check interrupts Refer to Section 2 for interrupt s...

Страница 116: ...the built in video controller and DRAM Wavey display 1 Check that the computer and monitor are not near motors or electric fields Blank display 1 Check that built in VGA see Section 2 or optional video board if installed is enabled 2 Check that the monitor power ON OFF switch is ON 3 Check cable connections between the AC power supply and monitor 4 Adjust brightness and contrast controls on the mo...

Страница 117: ...the sound board or the ex pansion boards in the system if the expansion board is using the sound board s setting To change the DMA channel and interrupt settings see Section 2 Setup and Operation Table Section 4 4 summarizes problems that may encounter when running from DOS Table Section 4 4 Sound Board DOS Problems Problem Cause Solution The installation program cannot run RAM memory might be les...

Страница 118: ...SET BLASTER A220 I5 D1 H5 P330 T6 will be added to the file Reboot the system for the new settings to take effect Some third party software report an error when detecting the I O interrupt or DMA channel setting These software do not support the Blaster environment Reconfigure the three drivers SBFMDRV COM CT VOICE DRV ORGAN DRV to ensure that the hard coded settings on the drivers correspond with...

Страница 119: ...he system No sound Audio equipment is not connected properly or the volume is not adjusted to an audible level Check to see that the speakers or headphones are connected to the sound board s audio output connector and the volume control knob is set to mid range System hangs during 16 bit digitized sound test But 8 bit works The DMA controller on the motherboard does not function properly during 16...

Страница 120: ...hoose RUN from the File menu in Program Manager 2 Type SYSEDIT in the Command Line text box and choose OK The SYSTEM INI file should resemble the following drivers timer timer drv midimapper midimap drv MIDI sb16fm drv Aux sb16aux drv Wave sb16snd drv MIDI1 sb16snd drv sndblst drv port 220 int 5 DMA Channel 1 HDMA Channel 5 MIDIPort 330 If one or more of the drivers are missing run WINSETUP by fol...

Страница 121: ...following mci WaveAudio mciwave drv Sequencer mciseq drv CDAUDIO mcicda drv If one or more of the drivers are missing refer to Windows user s guide on how to install the drivers The MIDI output could not be heard MIDI mapper might not be mapped Located in the Control Panel is a MIDI Mapper that maps the MIDI output to different MIDI devices The two MIDI devices on the sound board are the external ...

Страница 122: ...a the diagnostic port and the speaker Table Section 4 6 Diagnostic Output and Beep Codes Diagnostic Port Output Beep Codes Description of Test or Failure EB_PDIF EQU0400h Pointing device interface failure mouse E_REGS EQU 01h 80486 register test in progress E_CRAM EQU 02h 1 1 3 CMOS write read test in progress or failure E_BROM EQU 03h 1 1 4 BIOS ROM checksum in progress or failure E_TIMR EQU 04h ...

Страница 123: ... 3 1st 64 K RAM chip or data line failure bit E E_MBIT EQU 1Fh 2 4 4 1st 64 K RAM chip or data line failure bit F E_DMAS EQU 20h 3 1 1 Slave DMA register test in progress or failure E_DMAM EQU 21h 3 1 2 Master DMA register test in progress or failure E_PIC0 EQU 22h 3 1 3 Master interrupt mask register test in progress or failure E_PIC1 EQU 23h 3 1 4 Slave interrupt mask register test in progress o...

Страница 124: ... Test or Failure E_TIMRI EQU 34h 4 2 1 Timer tick interrupt test in progress or failure E_SHUTD EQU 35h 4 2 2 Shutdown test in progress or failure E_GTA20 EQU 36h 4 2 3 Gate A20 failure E_PMUXI EQU 37h 4 2 4 Unexpected interrupt in protected mode E_BAMEM EQU 38h 4 3 1 RAM test in progress or failure above address 0FFFFh E_TIMR2 EQU 3Ah 4 3 3 Interval timer channel 2 test in progress or failure E_T...

Страница 125: ...embly of the system unit follow the disassembly order listed in Table Section 5 1 To reassemble fol low 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 5 1 Deskt...

Страница 126: ...te where the connector goes and in what posi tion it was installed On completion of any reassembly perform a power on test see Setup in Section 2 If a fault occurs verify that the reassembly was performed correctly If the problem persists see Section 4 Maintenance and Troubleshooting CAUTION When handling boards or chips ground yourself to release static NOTE Unplug the power cord before disas sem...

Страница 127: ...e top cover 1 Power off and unplug all peripheral cables attached to the system unit 2 Remove the two cover screws Figure Section 5 1 Top Cover Screws 3 Slide the top cover toward the front about one inch 4 Lift the top cover up and off Figure Section 5 2 Removing the Top Cover ...

Страница 128: ...ibed 2 Disconnect any cables leading from the expansion board 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 backboard remove the ex pansion slot screw shown in Figure Section 5 4 Figure Section 5 3 Expansion Slot Screw Figure Section 5 4 Inside Expansion Slot Screw ...

Страница 129: ...rd from the expansion slot When removing an expansion board from the backside of the backboard separate the expansion slot L bracket from the expansion board by removing the screw Figure Section 5 5 Removing the Expansion Slot L Bracket ...

Страница 130: ...ackboard screws 3 Lift the backboard away from the bracket and out of the system unit Figure Section 5 6 PCI ISA Bus Backboard Screws Front Panel Assembly Removal Use the following procedure to remove the front panel assembly from the system unit 1 Remove the top cover as previously described 2 Unplug the following cables from their connectors n Power lamp connector J9 n Hard disk drive busy lamp ...

Страница 131: ...ndicator Panel Screws 4 Feed the two lamp and reset cables through the hole in the front of system unit chassis when removing the front panel assembly 5 Separate the lamps and reset button from the front panel assembly by pulling them out from their socket in the panel assembly ...

Страница 132: ...cover from the front panel 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 8 Power Button Tabs 1 of 4 Power Button Tabs Inside Front Panel ...

Страница 133: ...e the speaker from the device cage 1 Remove the top 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 4 Lift the speaker from the slot in the device cage Figure Section 5 9 Speaker Screw ...

Страница 134: ...part the two clips at each end of the SIMM stick the clips are part of the system board s connectors Tilt the SIMM stick forward allowing the post to slide out of the hole in the SIMM stick 3 Remove the SIMM stick from the system board Repeat step 2 for each SIMM to be removed NOTE If more information is needed see the installation instructions in Section 3 Options Figure Section 5 10 SIMM Socket ...

Страница 135: ...ve power cable and signal cable from the diskette drive 3 Unplug the hard disk drive power 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 cor rect position The position of the red edge of the diskette drive signal cable is shown in Section 3 Optins 4 Remove the four 3 1 2 inch drive bracket screws Figure Sec...

Страница 136: ...ws securing the diskette drive to the drive bracket Remove the three screws securing the hard disk drive to the drive bracket 6 Pull the drives out from the front of the bracket Figure Section 5 12 3 1 2 Inch Diskette and Hard Disk Drive Screws ...

Страница 137: ... in the 5 1 4 inch device cage 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 out of the 5 1 4 inch device cage from the front of the system unit NOTE When reinstalling the 5 1 4 inch device note that all power cables are keyed to fit only in the correct position The position of the red edge of the diskette drive signal ...

Страница 138: ...completely disassembling the system unit 1 Remove the top cover front panel and 3 1 2 inch drive bracket as previously de scribed 2 Unplug all signal and power cables from the device s in the 5 1 4 inch device cage 3 Remove the four device cage screws from the front of the device cage 4 Pull the device cage out from the inside of the system unit Devices in the device cage do not need to be removed...

Страница 139: ...ove the top cover and front panel as previously 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 Figure Section 5 15 Power Button Screws Power Button Screws ...

Страница 140: ... following procedure to remove the system board 1 Remove the following components as previously described n top cover n 3 1 2 inch drive bracket n expansion slot boards n PCI ISA Bus backboard n SIMMs installed on the system board 2 Remove and label all cables connected to the system board Figure Section 5 17 provides the connector locations and Table Section 5 2 identifies the connector Appendix ...

Страница 141: ...Figure Section 5 17 System Board Connectors and Screws Table Section 5 2 System Board Connectors Connector Connector Label Power supply J6 Fast IDE hard disk drive connector IDE1 J3 Standard IDE connector IDE2 J7 Diskette drive connector J5 Speaker J18 Keylock J14 Turbo LED J11 Turbo Switch J12 Power lamp J9 Hard disk drive busy lamp JP15 Reset Button J15 ...

Страница 142: ... and NEC part numbers for the PowerMate V486 Series desktop computers Table Section 5 3 lists the field replaceable parts for the computer Figure Section 5 19 is the illustrated parts breakdown In the U S call 1 800 632 4525 to order NEC spare parts To order options in the U S call the local sales office Table Section 5 3 PowerMate V486 Desktop Field Replaceable Parts List Item Description Part Nu...

Страница 143: ...A 13 Audio Cable 158 050824 000 14 Sound Board Creative Labs 2261 158 050797 000 15 PCI ISA Bus Backboard 158 050795 000A 16 Network Board 3COM 3C509B 158 050796 000 17 Top Cover 158 050685 001 18 Power Supply 158 050686 000 19 Speaker Kit with Cables QS 815 158 050801 000 20 AC Adapter for Speakers 158 050829 000 21 Heatsink for 486DX2 66 and 486DX4 100 CPUs 158 082534 000 22 486DX2 66 CPU with w...

Страница 144: ...5 20 Desktop Repair Table Section 5 3 PowerMate V486 Desktop Field Replaceable Parts List Item Description Part Number 33 NEC Mouse PS 2 comptible 158 050484 002 ...

Страница 145: ...e Section 5 19 PowerMate V486 Desktop 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 42181169 ...

Страница 146: ...ive Kit 158 050395 337 All PowerMate V486 computers SIMM kits have tin edge connectors Table Section 5 5 lists PowerMate V486 desktop documentation and packaging Table Section 5 5 PowerMate V486 Desktop Documentation and Packaging Description Part Number PowerMate V486 Series System User s Guide 819 181119 000 PowerMate V486 Series Quick Setup 819 181143 000 PowerMate V486 Series Service and Refer...

Страница 147: ...ollow the disassembly order listed in Table Section 6 1 To reassemble fol low 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 V466 Minitower Disass...

Страница 148: ...rocedure n All screws are Phillips head unless otherwise specified n Label all removed connectors Note where the connector goes and in what posi tion it was installed On completion of any reassembly perform a power on test see Setup in Section 2 If a fault occurs verify that the reassembly was performed correctly If the problem persists see Section 4 Maintenance and Troubleshooting CAUTION When ha...

Страница 149: ...sembling the system unit Voltage is present in side 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 three cover screws Figure Section 6 1 Top Cover Screws ...

Страница 150: ...6 4 Minitower Repair 3 Slide the top cover toward the front about one inch 4 Lift the top cover up and off the system unit chassis Figure Section 6 2 Removing the Top Cover ...

Страница 151: ...following procedure to remove the installed expansion board 1 Remove the top cover as previously described 2 Disconnect any cables leading from the expansion board 3 Remove the screw from the expansion slot bracket Figure Section 6 3 Expansion Slot Screw ...

Страница 152: ...boards as previously described 2 Remove the two PCI ISA Bus backboard bracket screws 3 Pull the backboard and bracket and out of the system unit Figure Section 6 4 PCI ISA Bus Backboard Bracket Screws 4 Separate the PCI ISA Bus backboard from the bracket by removing the two screws shown in Figure Section 6 5 Figure Section 6 5 PCI ISA Bus Backboard Screws ...

Страница 153: ...d 2 Remove the seven front panel screws from inside the top cover 3 Feed the two lamp and reset cables through the hole in the front of system unit chassis when removing the front panel assembly 4 Separate the lamps and reset button from the front panel assembly by pulling them out from their socket in the panel assembly Figure Section 6 6 Front Panel Screws ...

Страница 154: ...remove the power button cover 1 Remove the top cover 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 3 Remove the power button from the front of the panel Figure Section 6 7 Power Button Tabs ...

Страница 155: ...e the speaker 1 Remove the top cover as previously described 2 Unplug the speaker 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 1 of 3 Tabs Raised Spot ...

Страница 156: ...lips at each end of the SIMM stick the clips are part of the system board s connectors Tilt the SIMM stick forward allowing the post to slide out of the hole in the SIMM stick 3 Remove the SIMM stick from the system board Repeat step 2 for each SIMM to be removed NOTE If more detailed information is needed see the installation instructions in Section 3 Options Figure Section 6 9 Removing a SIMM ...

Страница 157: ...er as previously described 2 Unplug the diskette drive power cable and signal cable from the diskette drive 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 10 3 1 2 Inch Diskette Drive Cables ...

Страница 158: ... Drive Bracket Screws 4 Slide the 3 1 2 inch diskette drive with bracket out of the system unit The bracket works like a drawer and will stop when fully out 5 Remove the four 3 1 2 inch diskette drive screws two on each side see Figure Section 6 13 6 Remove diskette the drive out from the front of the chassis ...

Страница 159: ...h hard disk drive 1 Remove the top cover as previously described 2 Unplug the hard disk drive power 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 cor rect position Figure Section 6 12 3 1 2 Inch Hard Disk Drive Cables ...

Страница 160: ...4 Minitower Repair 3 Remove the four 3 1 2 inch hard disk drive screws two on each side 4 Remove the 3 1 2 inch hard disk drive out from inside the chassis Figure Section 6 13 Removing a 3 1 2 Inch Device ...

Страница 161: ... 1 Remove the top cover as previously described 2 Unplug all signal and power cables from the device s in the 5 1 4 inch device cage 3 Remove the four 5 1 4 inch hard disk drive screws two on each side 4 Remove the device out of the 5 1 4 inch device cage from the front of the system unit Figure Section 6 14 Removing a 5 1 4 Inch Device ...

Страница 162: ...escribed 2 Unplug all signal and power cables from the device s in the 5 1 4 inch device cage 3 Remove the four device cage screws from the front of the device cage see Figure Section 6 15 4 Pull the device cage out from the front of the system unit Devices in the device cage do not need to be removed to remove the device cage Figure Section 6 15 5 1 4 Inch Device Cage Screws ...

Страница 163: ...over as previously 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 Figure Section 6 16 Power Button Screws Power Button Screws not shown Power Button ...

Страница 164: ...e following components as previously described n top cover n expansion slot boards n PCI ISA Bus backboard n Secondary cache if installed see Section 3 Options n SIMMs installed on the system board 2 Remove the two 3 1 2 inch diskette drive bracket screws from the front of the system unit see Figure Section 6 15 3 Slide the 3 1 2 inch diskette drive with bracket out of the system unit The bracket ...

Страница 165: ...ch connector 5 Remove the seven screws that hold the system board to the system unit chassis Remove the system board out the side of the system unit Figure Section 6 18 System Board Connectors and Screws Power Connectors Diskette Drive Connector Fast IDE Connector Speaker Connector Standard IDE Connector 1 of 7 Screws Battery Socket Power Lamp Connector Hard Disk Drive Busy Connector Reset Button ...

Страница 166: ...se the following procedure to remove the battery 1 Remove the top cover as previously described 2 Remove the two 3 1 2 inch diskette drive bracket screws from the front of the system unit see Figure Section 6 15 3 Slide the 3 1 2 inch diskette drive with bracket out of the system unit The bracket works like a drawer and will stop when fully out 4 Lift the battery spring clip securing the battery i...

Страница 167: ...Minitower Repair 6 21 Figure Section 6 19 Battery Replacement 5 After installing a new battery the time date etc may need to be reset Run the Setup utility that came with the system see Section 2 ...

Страница 168: ...h Drive Bracket 158 050698 009 5 PCI ISA Bus Backboard 158 050798 000A 6 Network Board 158 050796 000 7 8 MB SIMM Stick 2 MB x 32 bit 158 082553 070 8 Battery 158 056137 000 9 System Board without CPU 158 050794 000A 10 Diskette Drive Signal Cable 158 050690 001 11 Hard Disk Drive IDE Signal Cable 158 050691 000 12 5 1 4 inch Blank Panel 158 050698 010 13 Front Panel 158 050698 007 14 Power Button...

Страница 169: ...S 2 compatible 158 050484 002 23 Keyboard 158 050707 000 24 Speaker Assembly internal 158 050698 003 25 Power Cord 158 050697 000 26 PCI ISA Bus Backboard Bracket 158 050698 006 ____________ 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 42181169 ...

Страница 170: ...e Section 6 20 PowerMate V466 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 42181169 ...

Страница 171: ... Video DRAM Module TBD 1 2 MB Diskette Drive Kit 158 053476 000 540 MB Hard Disk Drive Kit 158 050395 322 850 MB Hard Disk Drive Kit 158 050395 337 NEC SVGA Monitor 158 053605 000 MultiSync 3FGe Color Monitor 08119705 MultiSync 4FGe Color Monitor 08119709 MultiSync 5FGe Color Monitor 08119343 MultiSync 6FG Color Monitor 08119337 Printer Cable 808 857782 001A RS 232C Cable 808 857781 001A All Power...

Страница 172: ...uide 819 181119 000 PowerMate V486 Series Quick Setup 819 181143 000 PowerMate V486 Series Service and Reference Manual 819 181169 000 Network Card User s Guide 819 181183 000 PowerMate V466 Minitower Shipping Carton 158 040446 006 Shipping Carton Inserts 4 158 040395 004 ____________ This data was prepared February 1995 For an up to date listing of spare parts please call FastFacts 800 366 0476 a...

Страница 173: ...tion 5 21 options 5 21 voltage selector switch 2 2 Desktop Management Interface DMI 1 20 Desktop system unit chassis 1 1 front panel 1 1 Device cage desktop removal 5 14 Device cage minitower removal 6 16 Diagnostic output and beep codes 4 16 Dimensions 6 Disassembly desktop 5 1 4 inch device 5 13 battery 5 18 device cage 5 14 diskette drive 5 11 expansion board 5 4 front panel assembly 5 6 hard d...

Страница 174: ...Feature connector 1 11 Features network 2 10 sound board 2 8 Flash ROM 1 6 Front panel desktop removal 5 6 Front panel minitower removal 6 7 Full Power On mode 1 17 G Graphics accelerator 1 11 Graphics support 1 11 4 H Hard disk minitower removal 6 13 Hard disk drive 1 18 I I O Addressing 1 8 IDE devices connecting 3 29 3 34 Illustrated parts breakdown desktop 5 18 minitower 6 22 Indicator panel 1...

Страница 175: ...port 1 15 Password 2 32 Password jumper 2 28 PCI bus 1 14 1 15 PCI local bus See PCI bus PCI ISA Bus backboard desktop removal 5 6 PCI ISA Bus backboard minitower removal 6 6 Plug and Play support 1 20 Power button 1 17 Power button cover desktop removal 5 8 Power button cover minitower removal 6 8 Power lamp 1 17 Power Management 1 8 1 17 1 20 2 24 Full Power On mode 1 17 sleep button 1 17 Sleep ...

Страница 176: ...er On Self Test 1 7 primary cache 1 6 processors 1 5 secondary cache 1 6 System Memory 1 9 system memory map 1 7 video BIOS 1 6 video controller 1 11 Video Memory 1 11 System board desktop removal 5 16 System board minitower removal 6 18 System board serial number 1 20 System configuration 2 12 System Memory 1 9 system memory map 1 7 System model number 1 20 System Recovery diskette 4 6 T Top cove...

Страница 177: ...Index 5 Video performance 3 17 Virus protection 1 21 Voltage selector switch desktop 2 2 minitower 2 5 W Weight 6 Z ZIF socket 3 19 ...

Страница 178: ... 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 the interference by one or more of the following measures n Reorient or relocate the receiving antenna n Increase the separ...

Страница 179: ...ype 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 disposed of in an environmentally approved manner The incineration landfilling or mixing of batteries with the municipal ...

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