DFI PB64-V3 User Manual Download Page 14

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Hardware Installation

Note:

Intel Pentium



II, Intel Pentium



III processors and Intel Celeron

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 processor.

233MHz

350MHz

3.5x

266MHz

400MHz

300MHz

450MHz

4.5x

333MHz

Processor

SW1

66MHz

100MHz

Frequency

Ratio

Future

processor

5.5x

Processor

SW1

66MHz

100MHz

Frequency

Ratio

400MHz

Future

processor

433MHz

Future

processor

Future

processor

Future

processor

Future

processor

Future

processor

6.5x

7.5x

Future

processor

Future

processor

500MHz

366MHz

2.3 DIP Switch Settings for Processors

The table below shows the supported processors and their

corresponding DIP switch settings (SW1). There are 4 switches on

SW1. The black rectangle in the diagram denotes the part that is

protruding, the adjustable switch. Make sure SW1 is set correctly

before applying power, otherwise you will not be able to power-on

the system.

In the example above:

Switch 1: Off

Switch 2: Off

Switch 3: On

Switch 4: On

Summary of Contents for PB64-V3

Page 1: ...PB64 V3 Rev A System Board User s Manual 39500911 ...

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: ...62 62 64 Appendix A System Error Messages A 1 POST Beep A 2 Error Messages Appendix B Troubleshooting B 1 Troubleshooting Checklist ...

Page 6: ...ly 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 16MB to 384MB memory using unbuffered DIMMs Three 168 pin DIMM sockets Uses x64 or x72 PC SDRAM 3 3V PC 66 SDRAM DIMM for 66MHz FSB processors PC 100...

Page 7: ...pplications Sample rates from 4KHz up to 48KHz Full duplex operation for simultaneous record and playback ESS proprietary AudioRack application Desktop Management Interface DMI The system board comes with a DMI 2 0 built into the BIOS The DMI utility in the BIOS automatically records various information about your system configuration and stores these information in the DMI pool which is a part of...

Page 8: ...te up to 16 6MB sec Bus mastering reduces CPU utilization during disk transfer Supports ATAPI CD ROM LS 120 and ZIP and SCSI sequential boot up IrDA Interface The system board is equipped with an IrDA connector for wireless connectivity between your computer and peripheral devices It supports peripheral devices that meet the IrDA or ASKIR standard USB Ports The system board is equipped with two US...

Page 9: ... 1 3 Intelligence Automatic CPU Chassis Fan Off The CPU and chassis fans will automatically turn off once the system enters the Suspend mode Dual Function Power Button Depending on the setting in the BIOS setup this switch will allow the system to enter the Soft Off or Suspend mode External Modem Ring on The Modem Ring on feature allows the system that is in the Suspend mode or Soft Power Off mode...

Page 10: ... for more information Important The power button will not function once a keyboard password has been set in the KB Power On Password field of the Integrated Peripherals setup You must type the correct password to power on the system The 5VSB power source of your power supply must support 720mA minimum ACPI The system board is designed to meet the ACPI Advanced Configuration and Power Interface spe...

Page 11: ...ckage contains the following items þ The system board þ A user s manual þ One 40 pin IDE hard disk cable þ One 34 pin floppy disk drive cable þ One CD If any of these items are missing or damaged please contact your dealer or sales representative for assistance ...

Page 12: ... 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 any procedures requiring ESD protection ...

Page 13: ...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 Module A DIM module simply snaps into a DIMM socket on the system board Pin 1 of the DIM module must correspond with Pin 1 of the socket 1 Pull the tabs which are at the ends of the socket to the side 2 Position the DIMM abov...

Page 14: ...0MHz Frequency Ratio 400MHz Future processor 433MHz Future processor Future processor Future processor Future processor Future processor 6x 6 5x 7x 7 5x 8x Future processor Future processor 500MHz 366MHz 2 3 DIP Switch Settings for Processors The table below shows the supported processors and their corresponding DIP switch settings SW1 There are 4 switches on SW1 The black rectangle in the diagram...

Page 15: ...essor to 100MHz set pins 1 2 and 3 to Off If you want a 100MHz FSB processor to run at 66MHz set pins 2 and 3 to On Warning Overclocking a 66MHz FSB processor to 100MHz will provide better system performance However not all 66MHz FSB processors are capable 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 sett...

Page 16: ...board password the system can be reconfigured with the 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 2 3 On Clear CMOS Data 1 2 On Normal default 1 2 3 1 2 3 ...

Page 17: ...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 18: ...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 19: ...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 20: ...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 21: ...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 22: ...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 23: ...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 24: ...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 25: ...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 26: ...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 27: ...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 28: ...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 29: ...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 30: ...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 31: ...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 32: ...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 33: ...er 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 34: ...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 35: ...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 install nor work...

Page 36: ...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 37: ...hen the typematic rate is enabled the BIOS will not only report that the key is down but will first wait for a moment and if the key is still down it will begin to report that the key has been depressed 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 ac...

Page 38: ... a reliability prediction technology for ATA IDE and SCSI drives The drive will provide sufficient notice to the system or user to backup data prior to the drive s failure The default is Disabled If you are using hard drives that support S M A R T set this field to Enabled SMART is supported in ATA 3 or later hard drives Processor Serial Number This field will appear only when you are using a Pent...

Page 39: ... this setting the system will run according to the processor s clock frequency If you selected an option other than Default and is unable to boot up the system there are 2 methods of going back to its default setting 3 1 3 Chipset Features Setup ROM PCI ISA BIOS CHIPSET FEATURES SETUP AWARD SOFTWARE INC ESC F1 F5 F6 F7 Quit Help Old Values Load Fail Safe Settings Load Optimal Settings PU PD Shift ...

Page 40: ...uency Note When using a 66MHz FSB processor the AGP clock and the CPU s external bus clock are similar When using a 100MHz FSB processor the AGP clock is 2 3 of the CPU s external bus clock System Health Monitor The BIOS is capable of monitoring the following system health conditions processor and system temperature fan speed of the chassis and CPU fans voltage of the processor and output voltage ...

Page 41: ...ode Suspend Mode HDD Power Down Soft Off by PWR BTTN PWR Lost Resume State Resume on Ring Resume on LAN Resume on Alarm Disabled User Define Yes DPMS Suspend Disabled Disabled Disabled Instant Off Keep Off Disabled Disabled Disabled ESC F1 F5 F6 F7 Quit Help Old Values Load Fail Safe Settings Load Optimal Settings PU PD Shift F2 Select Item Modify Color PM Events IRQ3 COM 2 IRQ4 COM 1 IRQ5 LPT 2 I...

Page 42: ...end Mode 1 min User Defined Allows you to set each mode individually When enabled each option ranges from 1 min to 1 hr PM Control 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 Video Off Method T...

Page 43: ... the CPU and onboard peripherals will be shut off HDD Power Down This is user configurable only when the Power Management category is set to User Defined When enabled and after the set time of system inactivity the hard disk drive will be powered down while all other devices remain active Soft Off by PWR BTTN This category allows you to select the method of powering off your system Hold 4 Sec Rega...

Page 44: ...eps below 1 Make sure the computer system is powered off 2 Connect the external modem to the COM 1 or COM 2 serial port 3 Switch on the power of the external modem 4 Power on the computer system After the memory test press Del to enter the Award BIOS setup utility 5 Select Power Management Setup and press Enter 6 Enable the Resume on Ring field 7 Press Esc to return to the main menu of the Award B...

Page 45: ...tem will power on everyday according to the time set in the Timer hh mm ss field 1 31 Select a date you would like the system to power on The system will power on on the set date and time set in the Timer hh mm ss field Timer hh mm ss This is 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...

Page 46: ...Assign IRQ for VGA Onboard Sound PCI3 IRQ PCI Slot 1 Use IRQ PCI Slot 2 Use IRQ PCI Slot 4 Use IRQ Enabled 5 Auto Auto Auto Resources Controlled By The Award Plug and Play BIOS has the capability to automatically configure all of the boot and Plug and Play compatible devices Auto The system will automatically detect the settings for you The categories that follow will not be shown on the screen Ma...

Page 47: ... default an IRQ is automatically assigned to each PCI slot You may also manually assign an IRQ to these slots The options are 3 4 5 7 9 10 11 12 14 and 15 Onboard Sound PCI3 Use IRQ By default the IRQ 5 is automatically assigned to the onboard sound and PCI Slot 3 3 1 6 Load Fail Safe Settings The Load Fail Safe Settings option loads the troubleshooting default values permanently stored in the ROM...

Page 48: ...d Serial Port 1 Onboard Serial Port 2 UART2 Mode Select Onboard Parallel Port Parallel Port Mode ECP Mode Use DMA EPP Mode Select Keyboard Mouse Power On 8MHz Enabled 3F8 IRQ4 2F8 IRQ3 Normal 378 IRQ7 ECP EPP 3 EPP1 7 Disabled Onboard Primary PCI IDE Onboard Secondary PCI IDE IDE Prefetch Mode IDE HDD Block Mode IDE Primary Master PIO IDE Primary Slave PIO IDE Secondary Master PIO IDE Secondary Sl...

Page 49: ...in timing When Auto is selected the BIOS will select the best available mode after checking your drive Auto The BIOS will automatically set the system according to your hard disk drive s timing 0 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 IDE Primary Master Slave UDMA and IDE Secondary Master Slave UDMA Thes...

Page 50: ...port 1 and serial port 2 3F8 IRQ4 2F8 IRQ3 3E8 IRQ4 2E8 IRQ3 Allows you to manually select an I O address for the onboard serial port 1 and serial port 2 Disabled Disables the onboard serial port 1 and or serial port 2 UART2 Mode Select The system board supports IrDA function for wireless connectivity between your computer and peripheral devices You may not use IrDA J5 and the COM 2 serial port J2...

Page 51: ... option The parallel modes are SPP EPP ECP and ECP EPP The default is ECP EPP Both ECP Mode Use DMA and EPP Mode Select will appear on the screen If you selected EPP EPP Mode Select will appear This field applies to standard specification The options are EPP1 9 and EPP1 7 Default setting EPP1 7 If you selected ECP ECP Mode Use DMA will appear This is used to select a DMA channel for the parallel p...

Page 52: ...stem The options are from Ctrl F1 to Ctrl F12 Mouse Left When this option is selected double click the left but ton of the mouse to power on the system Mouse Right When this option is selected double click the right button of the mouse to power on the system Any Key Press any key to power on the system Keyboard 98 When this option is selected press the wake up key of the Windows 98 compatible keyb...

Page 53: ...ser 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 user s password to enter Setup allows a user to access only the User Passwor...

Page 54: ...NS SIZE CYLS HEAD RECOMP LANDZ SECTOR MODE 2 Y 853 827 32 0 1653 63 LBA 1 853 1654 16 65535 1653 63 Normal 3 853 827 32 65536 1653 63 Large Note Some OS like SCO UNIX must be NORMAL for installation ESC Skip The settings on the screen are for reference only Your version may not be identical to this one For hard drives larger than 528MB you would typically select the LBA type Certain operating syst...

Page 55: ...ht 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 the initial diagnostics on the screen If you wish to make any changes to the setup press Ctrl Alt Esc simultaneously or Del after memory testing is done ...

Page 56: ...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 57: ...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 58: ...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 59: ...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 60: ... 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 61: ...nge is from 1 sec to 120 sec The default interval is 2 sec 4 3 Patch Utility and drivers 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 Readme Patch Utility for Windows 95 98 If you are runn...

Page 62: ...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 63: ...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 64: ...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 65: ...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 66: ... 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 67: ...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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