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FCC and DOC Statement on Class B

This equipment has been tested and found to comply with the limits

for a Class B digital device, pursuant to Part 15 of the FCC rules.

These limits are designed to provide reasonable protection against

harmful interference when the equipment is operated in a residential

installation. This equipment generates, uses and can radiate radio

frequency energy and, if not installed and used in accordance with

the instruction manual, 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 the interference by one or more of the

following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from

that to which the receiver is connected.

• Consult the dealer or an experienced radio TV technician for

help.

Notice:

1. The changes or modifications not expressly approved by the

party responsible for compliance could void the user's authority

to operate the equipment.

2. Shielded interface cables must be used in order to comply with

the emission limits.

Summary of Contents for PB64-BX

Page 1: ...PB64 BX ZX Rev A System Board User s Manual 39300911 ...

Page 2: ...urther the manufacturer reserves the right to revise this publication and make changes to its contents at any time without obligation to notify any person or entity of such revisions or changes All Rights Reserved 1999 Trademarks Microsoft MS DOS WindowsTM Windows 95 andWindows 98 are registered trademarks of Microsoft Corporation Intel Pentium II Pentium III and CeleronTM are registered trademark...

Page 3: ...rticular 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 Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an ...

Page 4: ...tors Chapter 3 Award BIOS Setup Utility 3 1 The Basic Input Output System 3 1 1 Standard CMOS Setup 3 1 2 BIOS Features Setup 3 1 3 Chipset Features Setup 3 1 4 Power Management Setup 3 1 5 PNP PCI Configuration 3 1 6 Load Fail Safe Settings 3 1 7 Load Optimal Settings 3 1 8 Integrated Peripherals 3 1 9 Supervisor Password 3 1 10 User Password 3 1 11 IDE HDD Auto Detection 3 1 12 Save Exit Setup 3...

Page 5: ...64 64 66 Appendix A System Error Messages A 1 POST Beep A 2 Error Messages Appendix B Troubleshooting B 1 Troubleshooting Checklist ...

Page 6: ...h a switching voltage regulator that automatically detects 1 30V to 3 5V 450 100MHz or 500 100MHz Pentium III processor 233 66MHz 266 66MHz 300 66MHz 333 66MHz 350 100MHz 400 100MHz or 450 100MHz Pentium II processor 266 300 300A 333 366 400 433MHz CeleronTM processor SEPP for Slot 1 System Memory PB64 BX 16MB to 384MB memory using unbuffered DIMMs 32MB to 768MB memory using registered DIMMs Three...

Page 7: ...e bus masters except PCI 4 in the PB64 ZX which is slave only Onboard Audio Features Sound Blaster Sound Blaster Pro and WSS compatible Supports PC games and applications Sample rates from 4KHz up to 48KHz Full duplex operation for simultaneous record and playback ESS proprietary AudioRack application Supported only when PB64 BX uses registered DIMMs DIMMs 2MBx64 x72 4MBx64 x72 8MBx64 x72 16MBx64 ...

Page 8: ...B 9 serial ports 1 DB 25 parallel port 1 mini DIN 6 PS 2 keyboard port 1 mini DIN 6 PS 2 mouse port 1 game MIDI port 3 audio jacks line out line in and mic in Connectors 1 connector for IrDA interface 2 IDE connectors 1 floppy connector 1 20 pin ATX power supply connector 1 3 pin WOL Wake On LAN connector 3 CD audio in connectors 3 fan connectors for CPU chassis and AGP fans PCI Bus Master IDE Con...

Page 9: ...nal Plug and Play peripherals BIOS Award BIOS Windows 95 98 Plug and Play compatible Flash EPROM for easy BIOS upgrades Includes NCR 810 SCSI BIOS 2MB flash memory 1 1 2 System Health Monitor Functions The system board is capable of monitoring the following system health conditions Monitors processor system temperature and processor overheat alarm Monitors 1 5V 3 3V 5V 12V VCORE voltages and failu...

Page 10: ...ming calls Note This feature supports external modem only RTC Timer to Power on the System The RTC installed on the system board allows your system to automatically power on on the set date and time Wake On LAN Ready The Wake On LAN function allows the network to remotely wake up a Soft Power Down Soft Off PC Your LAN card must support the remote wakeup function Important The 5VSB power source of ...

Page 11: ...wer Interface specification ACPI has energy saving features that enables PCs to implement Power Management and Plug and Play with operating systems that support OS Direct Power Management Virus Protection Most viruses today destroy data stored in hard drives The system board is designed to protect the boot sector and partition table of your hard disk drive 1 2 Package Checklist The system board pa...

Page 12: ...12 2 1 System Board Layout Chapter 2 Hardware Installation PB64 BX ...

Page 13: ...processor disk drives add in boards and other components Perform the upgrade instruction procedures described at an ESD workstation only If such a station is not available you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the system chassis If a wrist strap is unavailable establish and maintain contact with the system chassis throughout an...

Page 14: ...RAM DIMM 3 3V PC SDRAM Synchronous Dynamic Random Access Memory uses a fast memory interface technology that includes using the clock on the chip to synchronize with the CPU clock so that the timing of the memory chips and the timing of the CPU are synchronized This saves time during transmission of data subsequently increasing system performance Pin 1 Notch Key Tab Tab 2 2 1 Installing the DIM Mo...

Page 15: ...djustable switch Make sure SW1 is set correctly before applying power otherwise you will not be able to power on the system 1 Pull the tabs which are at the ends of the socket to the side 2 Position the DIMM above the socket with the notches in the module aligned with the keys on the socket 3 Seat the module vertically into the socket Make sure it is completely seated The tabs will hold the DIMM i...

Page 16: ...ble of running at 100MHz bus speed Therefore if you are unable to boot your system when set at 100MHz make sure to set JP3 back to its default setting Note Intel Pentium II Intel Pentium III processors and Intel CeleronTM processors support VID Voltage Identification The switching voltage regulator on the system board will automatically set the voltage regulator according to the voltage of the pro...

Page 17: ...e default values stored in the ROM BIOS To load the default values power off your system and unplug the power cord Set JP4 pins 2 and 3 to On Wait for a few seconds and set JP4 back to its default setting pins 1 and 2 On You may now plug the power cord and power on your system Jumper JP3 s settings are shown below 1 2 3 1 2 3 1 2 3 2 3 On 66MHz 1 2 On Auto default 1 2 3 Off 100MHz 2 3 On Clear CMO...

Page 18: ...3 for details Warning 1 If JP1 was previously enabled with a password set in the KB Power On Password field and now you wish to disable the Wake On Keyboard password function make sure to set the Keyboard Mouse Power On field to Disabled prior to setting JP1 to disabled You will not be able to boot up the system if you fail to do so 2 The power button will not function once a keyboard password has...

Page 19: ...disconnecting a mouse or keyboard Failure to do so may damage the system board 2 7 Connecting the Ribbon Cables and Wires of the Ports and Connectors 2 7 1 Serial Ports The built in serial ports are RS 232C asynchronous communication ports with 16C550A compatible UARTs that can be used with modems serial printers remote display terminals and other serial devices You can set the serial ports I O ad...

Page 20: ...t s mode in the Integrated Peripherals setup of the Award BIOS Setting SPP Standard Parallel Port ECP Extended Capabilities Port EPP Enhanced Parallel Port Function Allows normal speed operation but in one direction only Allows parallel port to operate in bidirectional mode and at a speed faster than the SPP s data transfer rate Allows bidirectional parallel port op eration at maximum speed ...

Page 21: ...gned with pin 1 of the header You may enable or disable this function in the Integrated Peripherals setup of the Award BIOS Connecting the Floppy Disk Cable 1 Install the 34 pin header connector into the shrouded floppy disk header J10 on the system board The colored edge of the ribbon should be aligned with pin 1 of J10 2 Install the other 34 pin header connector s into the disk drive s Align the...

Page 22: ...ism can be installed in the shrouded IDE header Be extremely careful to match the colored edge of the ribbon with pin 1 of the header Connecting the Hard Disk Cable 1 If you are connecting two hard drives install the 40 pin connector of the IDE cable into the primary shrouded IDE header connector J12 If you are adding a third or fourth IDE device install the 40 pin connector of the other IDE cable...

Page 23: ...cturer In a few cases drives from two different manufacturers will not function properly when used together The problem lies in the hard drives not the system board Important If you encountered problems while using an ATAPI CD ROM drive that is set in Master mode please set the CD ROM drive to Slave mode Some ATAPI CD ROMs may not be recognized and cannot be used if incorrectly set in Master mode ...

Page 24: ...a transfers of 115K baud at a distance of 1 meter Connect your IrDA cable to connector J5 on the system board Set UART2 Mode Select in the Integrated Peripherals setup of the Award BIOS to the type of IrDA standard supported by your device You must have the proper drivers installed in your operating system to use this connector Refer to your operating system s manual or documentation Pin 1 2 3 4 5...

Page 25: ...e system board 2 7 9 Chassis Fan Connector The system board is equipped with a chassis fan connector If you are installing a fan in the system unit connect the fan s connector to location J9 on the system board The fan will provide adequate airflow throughout the chassis to prevent overheating the processor Pin 1 2 3 Function On Off 12V Sense Pin 1 2 3 Function On Off 12V Sense ...

Page 26: ...t the fan s connector to location J6 on the system board Refer to the add in card s manual for instructions on installing the fan Pin 1 2 3 Function Ground 12V N C 2 7 11 Game MIDI Port The Game MIDI port is identical to that of a standard PC game adapter or game I O port Connect an analog joystick to the 15 pin D sub connector This port works well with any application that is compatible with the ...

Page 27: ...ect external speakers for audio output from the system board Line in Jack This jack can be connected to the line out jack of any external audio devices such as Hi fi set CD player AM FM radio tuner synthesizer etc Connect a stereo cable from the line out jack of your external device to this line in jack Mic in Jack Connect a microphone to the mic in jack 2 7 13 CD Audio in Connector J21 J22 J23 ...

Page 28: ...rd and the other end to the audio line out connector on your CD ROM drive Connect the CD audio cable to J23 Mitsumi CD ROM or J22 Sony CD ROM if the audio cable included in your CD ROM package should look somewhat similar to the one on the right Connect the CD audio cable to J21 Sony CD ROM if the audio cable included in your CD ROM package should look somewhat similar to the one on the right Pin ...

Page 29: ...able the Resume on LAN field in the Power Management Setup of the Award BIOS Your LAN card package should include a cable Connect one end of the cable to the wakeup header on the card and the other end to location J8 on the system board The network will detect Magic Packet and assert a wakeup signal to power up the system Refer to the add in card s manual for details Note Your LAN card must suppor...

Page 30: ...below Pin 1 2 3 4 5 6 7 8 9 10 Function 3 3V 14A 3 3V 14A COM 5V COM 5V COM PW OK 5VSB 12V Pin 11 12 13 14 15 16 17 18 19 20 Function 3 3V 14A 12V COM PS ON COM COM COM 5V 5V 5V Important Your power supply must meet the ATX specification supporting 3 3V 14A minimum otherwise your system will not boot properly ...

Page 31: ...this switch is a dual function power button that will allow your system to enter the Soft Off or Suspend mode Refer to Soft Off By PWR BTTN in the Power Management Setup Chapter 3 G SW Green Switch This switch will allow your system to enter the Suspend mode RESET Reset Switch This switch allows you to reboot without having to power off the system thus prolonging the life of the power supply or sy...

Page 32: ...Power Green N C PWRBT Ground N C SMI Ground N C H W Reset Ground N C Speaker Data N C Ground Speaker Power N C LED Power N C Standby Signal Keylock Ground Use pins 21 to 23 for the Power Standby LED KEYLOCK Power Standby LED and Keylock Connector Use pins 21 23 to connect to the Power Standby LED This LED will light when the system s power is on and blinks when the system enters the Suspend mode U...

Page 33: ...spond restart your system or press the Reset button You may also restart the system by pressing the Ctrl Alt and Del keys simultaneously When you press Del the main program screen will appear 3 1 1 Standard CMOS Setup Use the arrow keys to highlight Standard CMOS Setup and press Enter A screen similar to the one on the next page will appear ROM PCI ISA BIOS CMOS SETUP UTILITY AWARD SOFTWARE INC ST...

Page 34: ...ter improper information for this category You can use Type User to define your own drive type manually This information should be included in the documentation from your hard disk vendor If you select Type Auto the BIOS will auto detect the HDD CD ROM drive at the POST stage and show the IDE for the HDD CD ROM drive If a hard disk has not been installed select None and press Enter The settings on...

Page 35: ...nced Graphics Adapter Video Graphics Array For EGA VGA SVGA and PGA monitor adapters CGA 40 Color Graphics Adapter Power up in 40 column mode CGA 80 Color Graphics Adapter Power up in 80 column mode Mono Monochrome adapter Includes high resolution monochrome adapters Halt On This category determines whether the system will stop if an error is detected during power up The default setting is All Err...

Page 36: ...ram to locate and remove the problem before any damage is done Many disk diagnostic programs which attempt to access the boot sector table will cause the warning message to appear If you are running such a program we recommend that you first disable this category Also disable this category if you are installing or running certain operating systems like Windows 95 or the operating system may not in...

Page 37: ...disk operating system The default is A C SCSI The options are A C SCSI C A SCSI C CDROM A CDROM C A D A SCSI E A SCSI F A SCSI SCSI A C SCSI C A C only LS ZIP C Swap Floppy Drive When this option is enabled and the system is booting from the floppy drive the system will boot from drive B instead of drive A When this option is disabled and the system is booting from the floppy drive the system will...

Page 38: ... repeatedly For example you would use such a feature to accelerate cursor movements with the arrow keys Typematic Rate Chars Sec This selection allows you to select the rate at which the keys are accelerated Typematic Delay Msec This selection allows you to select the delay between when the key was first depressed and when the acceleration begins Security Option System The system will not boot and...

Page 39: ...l number online making it possible to track your online activity The field provides the option of disabling this function 3 1 3 Chipset Features Setup 3 3 3 Disabled Non ECC Disabled Disabled Disabled 1 1 Disabled Disabled 64 Default Disabled ROM PCI ISA BIOS CHIPSET FEATURES SETUP AWARD SOFTWARE INC SDRAM RAS to CAS Delay SDRAM RAS Precharge Time SDRAM CAS Latency Time SDRAM Precharge Control DRA...

Page 40: ...ies only when synchronous DRAM is installed in the system SDRAM RAS Precharge Time If there is insufficient number of cycles for the RAS to accumulate its charge before DRAM refresh the refresh may be incomplete and the DRAM may fail to retain data SDRAM CAS Latency Time The default setting is 3 which is 3 clock cycles for the CAS latency DRAM Data Integrity Mode PB64 BX only The ECC Error Checkin...

Page 41: ...PU must be delayed to allow for the completion of the I O This item allows you to determine the recovery time allowed for 8 bit I O or 16 bit I O Memory Hole At 15M 16M In order to improve system performance certain space in memory can be reserved for ISA cards This memory must be mapped into the memory space below 16MB When enabled the CPU assumes the 15 16MB memory range is allocated to the hidd...

Page 42: ...to its default setting Method 1 Clear the CMOS data by following the procedure in section 2 5 chapter 2 of this manual All fields in the BIOS Setup will automatically be set to its default settings Method 2 Press the Insert key and power button simulta neously then release the power button first You must keep on pressing the Insert key until the power on screen appears This will allow the system t...

Page 43: ...r and system temperature fan speed of the chassis and CPU fans voltage of the processor and output voltage of the power supply The temperature fan speed and voltage of these mounitored items are shown in this section of the Chipset Features Setup Current System Temperature Current CPU Temperature Current Chassis Fan Speed and Current CPU Fan Speed These fields show the internal temperature of the ...

Page 44: ...ol by APM Yes An Advanced Power Management device will be activated to enhance the power saving mode and stop the CPU s inter nal clock Use this option in Windows 95 98 default No The system BIOS will ignore APM when initiating the Power Management mode The settings on the screen are for reference only Your version may not be identical to this one ROM PCI ISA BIOS POWER MANAGEMENT SETUP AWARD SOFT...

Page 45: ... in the Standby mode MODEM Use IRQ This category is used to set an IRQ channel IRQ 3 4 5 7 9 10 or 11 for the external modem installed in your system However if the Resume on Ring or Resume on LAN field is disabled the BIOS will mask the IRQ assigned for the modem This is to prevent the modem or LAN from waking up the system when it is in the Suspend mode Standby Mode This is user configurable onl...

Page 46: ...m Hold 4 Sec Regardless of whether the Power Management field is enabled or disabled if the power button is pushed and released in less than 4 sec the system enters the Suspend mode The purpose of this function is to prevent the system from powering off in case you accidentally hit or pushed the power button Push and release again in less than 4 sec to restore Pushing the power button for more tha...

Page 47: ...d press Enter 8 Type Y and press Enter Resume On LAN With a LAN card installed the Wake On LAN function allows the network to remotely wake up a Soft Power Down Soft Off PC However if your system is in the Suspend mode you can wake up the system only through an IRQ or DMA interrupt Make sure your LAN card supports the remote wakeup function To use this function set this field to Enabled Refer to t...

Page 48: ... used to set the time you would like the system to power on If you want the system to power on everyday as set in the Date of Month field the time set in this field must be later than the time of the RTC in the Standard CMOS Setup The settings on the screen are for reference only Your version may not be identical to this one ROM PCI ISA BIOS PNP PCI CONFIGURATION AWARD SOFTWARE INC Resources Contr...

Page 49: ... the configuration data Assign IRQ for VGA When Enabled the system automatically assigns an IRQ for the VGA card installed Your VGA card will need an IRQ only when using the video capture function of the card If you are not using this function and a new device requires an IRQ you can set this function to Disabled The IRQ previously occupied by the VGA card will be available for your new device Not...

Page 50: ...n the ROM chips These settings are not optimal and turn off all high performance features You should use these values only if you have hardware problems Highlight this option on the main menu and press Enter The message below will appear Load Fail Safe Settings Y N N If you want to proceed type Y and press Enter The default settings will be loaded 3 1 7 Load Optimal Settings The Load Optimal Setti...

Page 51: ... 4 You can select a mode that matches your hard disk drive s timing Caution Do not use the wrong setting or you will have drive errors 3 1 8 Integrated Peripherals The settings on the screen are for reference only Your version may not be identical to this one ROM PCI ISA BIOS INTEGRATED PERIPHERALS AWARD SOFTWARE INC IDE HDD Block Mode IDE Primary Master PIO IDE Primary Slave PIO IDE Secondary Mas...

Page 52: ...r The default is Enabled Select Disabled if you want to add a different hard drive controller USB Keyboard Support By default USB Keyboard Support is Disabled However if you are using a USB keyboard under DOS make sure to enable this function Init Display First This field is used to select whether to initialize AGP or PCI first when the system boots AGP When the system boots it will first initiali...

Page 53: ...al port make sure UART2 Mode Select is set to Normal To use the IrDA function follow the steps below 1 Connect your IrDA cable to connector J5 on the system board 2 Set UART2 Mode Select to the type of IrDA standard supported by your IrDA peripheral device IrDA 1 0 or ASKIR For better transmission of data your IrDA peripheral device must be within a 30o angle and within a distance of 1 meter 3 The...

Page 54: ...allows you to use the keyboard or mouse to power on the system To use this function make sure JP1 is set to 2 3 On the Wake On Keyboard Mouse function enabled Refer to Jumper Settings for Wake On Keyboard Wake On Mouse in Chapter 2 of this manual for more information Disabled Default setting Warning If JP1 was previously enabled with a password set in the KB Power On Password field and now you wis...

Page 55: ...up from unauthorized entry set a supervisor s password with the System option selected in the BIOS Features Setup If you want to protect access to setup only but not your system set a supervisor s password with the Setup option selected in the BIOS Features Setup You will not be prompted for a password when you cold boot the system Use the arrow keys to highlight the Supervisor Password option and...

Page 56: ... for reference only Your version may not be identical to this one 3 1 10 User Password If you want another user to have access only to your system but not to setup set a user s password with the System option selected in the BIOS Features Setup If you want a user to enter a password when trying to access setup set a user s password with the Setup option selected in the BIOS Features Setup Using us...

Page 57: ...stics on the screen If you wish to make additional changes to the setup press Ctrl Alt Esc simultaneously or Del after memory testing is done 3 1 13 Exit Without Saving When you do not want to save the changes you have made highlight Exit Without Saving and press Enter The message below will appear Quit Without Saving Y N N Type Y and press Enter The system will reboot and you will once again see ...

Page 58: ...hardware installed etc are automatically detected and stored in the DMI pool which is a part of the system board s Plug and Play BIOS Additional information such as ISA based peripherals which may not be automatically detected can be manually recorded in the DMI pool by using the Add DMI menu The DMI pool data is then verified or updated whenever the system hardware or setup is altered 4 1 1 Runni...

Page 59: ...he or arrow keys then press Enter 3 The cursor will move to the screen you select allowing you to edit information The screen will also display the auto detected information 4 Press F10 to update the edited information into the flash ROM Move cursor ENTER Accept DEL Delete ESC Abort Exit Award DMI Configuration Utility Copyright Award Software Inc 1996 Edit DMI Add DMI Load DMI File Save DMI File ...

Page 60: ...e or arrow keys to select the Load DMI File menu 2 The following message will appear Press Enter to select DMI file for load Press Enter 3 The DMI files will appear on the screen Select the file you would like to load and press Enter 4 The following message will appear Do you want to execute Y N Type Y All previous DMI structures will be destroyed and the new file will be saved into the flash ROM ...

Page 61: ...up The utility can also be configured so that a beeping alarm will sound whenever an error occurs We recommend that you use the Default Setting which is the ideal setting that would keep the system in good working condition Note Use this utility only in Windows 95 Windows 98 and Windows NT 4 0 To install the utility insert the CD included in the system board package into a CD ROM drive The autorun...

Page 62: ... has been detected thrice The rightmost column of the screen shows the current value of each monitored item To set the highest and lowest limit of each item click on the arrow buttons in the Lowest Limit or Highest Limit column However we DO NOT recommend that you change the settings of the Voltages Make sure to leave them in their default setting To further configure the utility select Configurat...

Page 63: ...t interval is 2 sec 4 3 Drivers and Utility The CD included in the system board package contains a patch utility ESS audio drivers and audio application softwares To view the installation instructions please insert the CD into a CD ROM drive The autorun screen Main Board Utility CD will appear Click Read me Patch Utility for Windows 95 If you are running Windows 95 Win95 Win95 Win95 OSR1 Windows 9...

Page 64: ...of a single long beep A 2 Error Messages One or more of the following messages may be displayed if the BIOS detects an error during the POST This list indicates the error messages for all Awards BIOSes CMOS BATTERY HAS FAILED The CMOS battery is no longer functional It should be replaced Caution Danger of explosion if battery incorrectly replaced Replace only with the same or equivalent type recom...

Page 65: ...e fixed disk Hard Disk s fail 08 Sector Verify failed Keyboard is locked out Unlock the key The BIOS detects that the keyboard is locked Keyboard controller is pulled low Keyboard error or no keyboard present Cannot initialize the keyboard Make sure the keyboard is attached correctly and no keys are being pressed during the boot Manufacturing POST loop System will repeat POST procedure infinitely ...

Page 66: ...utlet by plugging in a lamp or other electrical device 4 The monitor is turned on 5 The display s brightness and contrast controls are adjusted properly 6 All add in boards in the expansion slots are seated securely 7 Any add in board you have installed is designed for your system and is set up correctly Monitor Display If the display screen remains dark after the system is turned on 1 Make sure t...

Page 67: ...hing happens 1 Check that one end of the AC power cord is plugged into a live outlet and the other end properly plugged into the back of the system 2 Make sure that the voltage selection switch on the back panel is set for the correct type of voltage you are using 3 The power cord may have a short or open Inspect the cord and install a new one if necessary Floppy Drive The computer cannot access t...

Page 68: ... a cable connection problem However if your hard drive has a large capacity it will take a longer time to format Parallel Port The parallel printer doesn t respond when you try to print 1 Make sure that your printer is turned on and that the printer is on line 2 Make sure your software is configured for the right type of printer attached 3 Verify that the onboard LPT port s I O address and IRQ set...

Page 69: ...onfigured correctly Keyboard Nothing happens when a key on the keyboard was pressed 1 Make sure the keyboard is properly connected 2 Make sure there are no objects resting on the keyboard and that no keys are pressed during the booting process System Board 1 Make sure the add in card is seated securely in the expansion slot If the add in card is loose power off the system re install the card and p...

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