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Digital VENTURIS Pentium PC

Troubleshooting

MCS Logistics Engineering - Nijmegen

Computer Troubleshooting

(continued)

Problem

Possible Cause

Action

Power is on, but
there is no
screen display

Brightness and contrast controls
are not correctly set.

The monitor-off timer has shut
the monitor off.

Monitor cable is incorrectly
installed.

Incorrect VGA drivers installed.

Video controller has failed.

Adjust the brightness and contrast controls.

Press [Shift] to reactivate monitor.

Check all monitor connections.

Install the correct VGA drivers. Refer to

“Utilities & Video Drivers”

Replace the video controller.

Computer
operates
incorrectly after
installing
optional
expansion
board

Expansion board installed
incorrectly.

Did not run ICU to configure
expansion board before
installation.

Expansion board has failed.

Remove expansion board and reinstall.

Run the ICU to properly configure expansion
board and then reboot the computer. Refer to the
supplied ICU documentation.

Remove expansion board and reboot. If computer
boots without errors, replace expansion board.

Computer
operates
incorrectly after
installing
optional
external cache
module

External cache module installed
incorrectly.

External cache module has
failed.

Remove external cache module and reinstall.

Replace external cache module.

Computer fails
to retain setup
information

Computer battery has failed.

Replace computer battery.

Computer does
not boot from
an internal
SCSI hard disk
drive

Operating system software is not
installed on the SCSI hard disk
drive.

Requested partition does not
exist.

Computer not configured for
SCSI hard disk drive operation.

Install the appropriate operating system on the
SCSI hard disk drive.

Partition the SCSI hard disk drive and then reload
the operating software.

Run the BIOS Setup utility and set the IDE
controller option to “Disabled”. This disables the
IDE interface.

Note:

When both IDE and SCSI hard disk drives

have been installed, the computer uses the IDE
hard disk drive as the boot device.

Содержание FR-856E*-WB

Страница 1: ...Service Maintenance Manual VENTURIS Pentium PC K MN SD00000 06 JG00 B Copyright Digital Equipment Corporation All rights reserved February 1996 MCS LOGISTICS ENGINEERING NIJMEGEN THE NETHERLANDS ...

Страница 2: ...lication or disclosure by the U S Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Copyright Digital Equipment Corporation All Rights Reserved The following are trademarks of Digital Equipment Corporation VENTURIS and the Digital logo The following are third party trademarks MS DOS and Windo...

Страница 3: ...Creating a Crisis Recovery Diskette 16 Using the Crisis Recovery Diskette 17 Upgrading the Computer BIOS 17 EPP3SMC EXE 18 VIDEO DRIVERS UTILITIES 18 Setting High Resolution Mode for the Monitor Display 18 SMODE EXE 18 SMTR EXE 19 DOS Video Drivers 20 Windows 3 x Drivers 20 BIOS SETUP UTILITY 20 Running the BIOS Setup Utility 21 Helpful Hints 21 BIOS SETUP UTILITY OPTIONS 22 Main Menu Options 22 B...

Страница 4: ...RIS Pentium version 2 0 Main Logic Board Jumper Settings 42 VENTURIS Pentium version 2 0 Main Logic Board Jumper Locations 43 COMPUTER MEMORY CONFIGURATIONS 44 VENTURIS 560 Memory Configurations 44 VENTURIS 560 SIMM Sockets Locations 44 VENTURIS Pentium version 1 0 board Memory Configurations 45 VENTURIS Pentium version 1 0 board SIMM Sockets Locations 45 VENTURIS Pentium version 2 0 board Memory ...

Страница 5: ...E TROUBLESHOOTING 68 MONITOR TROUBLESHOOTING 68 QAPlus FE Error Messages 69 CHAPTER 5 DEVICE MAPPING 71 CPU Memory Address Map Full Range 71 I O Address Map 72 Computer Interrupt Levels 73 DMA Channel Assignment 73 CHAPTER 6 PASS FAIL CRITERIA 75 APPENDIX A SERVICE NOTES 77 APPENDIX B USEFUL INFORMATION 79 RELATED DOCUMENTATION 79 ON LINE BULLETIN BOARDS 79 DOCUMENT FEEDBACK 81 PERSONAL NOTES 83 R...

Страница 6: ...board SIMM Sockets Locations 45 Figure 3 13 VENTURIS Pentium version 2 0 board SIMM Socket Locations 47 Figure 3 14 Release front locking mechanism 48 Figure 3 15 Lock in place 48 Figure 3 16 Opening the VENTURIS Full Profile Device Bay Power Supply Subassembly 49 Figure 3 17 Removing the 3 inch diskette drive on the VENTURIS Slim Line models 50 Figure 3 18 Removing the 3 inch diskette drive on th...

Страница 7: ...IS Pentium series computer in its original configuration Revision A01 The original Service Maintenance Manual has been split into two Service Maintenance Manuals for the VENTURIS 486 PC family EK A0813 SV A01 and for the VENTURIS Pentium PC family EK A0814 SV A01 Revision B01 This revision of the VENTURIS 486 PC Service Maintenance Manual incorporates updated configurations and various models that...

Страница 8: ...e computer s to be serviced since many of the diagnostic tests are designed to test more than one product CAUTION Digital recommends that only A certified engineers attempt to repair this equipment All troubleshooting and repair procedures are detailed to support subassembly module level exchange Because of the complexity of the induvidual boards and subassemblies no one should attempt to make rep...

Страница 9: ...100 MHz 120 MHz and 133 MHz Plug and Play Optional Plug and Play compatible expansion boards are automatically configured under Windows 95 for easy installation If using DOS Windows optional Plug and Play compatible expansion boards are automatically configured using the ISA Configuration Utility ICU for easy installation Advanced Power Management Reduces the computer s energy consumption and oper...

Страница 10: ...del FDD HDD Memory Cache Options VENTURIS 575 FR 920 WB 1 44MB 420MB 8MB 256KB FR 920 WD 1 44MB 840MB 8MB 256KB FR 920 WE 1 44MB 1 2GB 8MB 256KB FR 920 WG 1 44MB 420MB 8MB 256KB Quad speed CD ROM FR 920WW CB 1 44MB 420MB 8MB 256KB FR 920WW CC 1 44MB 630MB 8MB 256KB FR 920WW CD 1 44MB 840MB 8MB 256KB FR 920WW CE 1 44MB 1 2GB 8MB 256KB FR 920WW CG 1 44MB 420MB 8MB 256KB Quad speed CD ROM FR 920WW CH...

Страница 11: ...e Options VENTURIS FP 5120 FR 927 VENTURIS 5133 FR 928 VENTURIS FP 5133 FR 929 VENTURIS 5150 FR 92D VENTURIS FP 5150 FR 92E VENTURIS 5166 FR 92F VENTURIS FP 5166 FR 92G VENTURIS 575 E Product Model FDD HDD Memory Cache Options VENTURIS E 575 FR 92BWW CC 1 44MB 630MB 8MB None EDO RAM VENTURIS E 575 FR 92BWW CD 1 44MB 1 2GB 8MB None EDO RAM Chapter 2 System Utilities ...

Страница 12: ...via Flash ROM EPP3SMC EXE enables to configure the computer for EPP operation Logitech mouse drivers enables the computer to operate using a Logitech mouse VGA utilities and DOS video drivers consisting of SMTR EXE enables to select the monitor type that matches the monitor s available resolution and refresh rates SMODE EXE enables to emulate or display non standard VGA modes DOS and CAD applicati...

Страница 13: ...the system utilities Creating a Crisis Recovery Diskette A crisis recovery diskette should always be prepared before attempting to upgrade the BIOS This diskette is used to reprogram the BIOS in case the flash process fails To create a crisis recovery diskette 1 Turn on the computer and allow the POST to complete If POST detects an error refer to Troubleshooting and take the appropriate steps to c...

Страница 14: ...ore the computer s BIOS and take full advantage of its enhanced video features 1 Turn on or reboot the computer If POST detects an error refer to Troubleshooting for possible causes and suggested solutions 2 If necessary run PHLASH EXE to upgrade or restore the computer s BIOS 3 Run EPP3SMC EXE to configure the computer for EPP operation 4 Run SMTR EXE to select the monitor type that matches the m...

Страница 15: ...E DOS Video Drivers Windows 3 x Drivers Setting High Resolution Mode for the Monitor Display To use the high resolution modes on the computer perform the following steps 1 Use the BIOS Setup utility to set correctly the Video System option 2 Use SMTR EXE from the VGA Utilities and DOS Video Drivers diskette to set correctly a Monitor Type 3 Use Windows Setup to copy the appropriate video driver in...

Страница 16: ...EXE The video controller s monitor type selection must match the monitor s available resolution and refresh rates These monitor resolution and refresh rates are listed in the monitor s support documentation and in the SMTR EXE utility CAUTION Do not select a monitor type setting that exceeds the monitor s resolution refresh rate vertical synchronization and interlace or non interlace specification...

Страница 17: ...e SETUP screen 3 Select the Display option and press Enter 4 Toggle through the Display option to select the appropriate Windows 3 x driver 5 Select the desired video resolution then press Enter 6 If the appropriate video driver resides on a separate diskette toggle through the Display option to select Other Requires disk provided by hardware manufacturer 7 Insert the diskette that contains the ap...

Страница 18: ...quipped with a new main logic board that contains a Phoenix 4 04 BIOS Additional modified BIOS Setup utility options are displayed in bold italics for the Version 2 0 Main Logic Board BIOS Setup Menu Fields and Settings often change with new BIOS version releases Always use on screen information for the latest BIOS Setup functionality Helpful Hints Several keyboard function keys and numeric keypad...

Страница 19: ...Not user selectable Displays the amount of base conventional memory each time the computer boots Extended memory Not user selectable Displays the amount of extended memory each time the computer boots Boot Options Menu Fields Settings Comments Boot sequence A only A then C C then A C only Each time the computer boots it will load the operating system from the sequence selected SETUP prompt Enabled...

Страница 20: ...ectors 8 sectors 16 sectors Auto Disabled Determines the number of sectors per block for multiple sector transfers Auto refers to the size the disk returns when queried LBA control mode Disabled Enabled Enabling LBA causes logical block addressing to be used instead of cylinders heads and sectors This option allows to select Disabled for IDE hard disk drives up to 528 MB When using IDE drives grea...

Страница 21: ... s external cache operates in write back mode when Enabled has been selected For optimal computer performance keep this setting at Enabled System BIOS shadow Not user selectable permanently set to Enabled The main logic board reserves an area of DRAM for a copy of system BIOS ROM This DRAM called shadow memory is write protected and has the same addresses as the system BIOS ROM locations When syst...

Страница 22: ...e memory hole at address F80000 with 0 5 MB memory available Sets the memory hole at address F00000 with 1 MB memory available Extended memory report Compatibility Non compatibility Selects the BIOS report mechanism for memory amount Select Compatibility when using a conventional operating system Select Non Compatibility for extended memory above 64 MB under Windows NT Advanced Chipset Control Men...

Страница 23: ...compatible mode and able to receive data Enhanced parallel port mode Selection based on what EPP version the printer supports EPP 1 9 is IEEE 1284 compliant Only choose a mode that the parallel port device such as a printer supports Check the parallel port device documentation for this information When unsure or unable to locate this information use the default setting Extended capabilities port m...

Страница 24: ... data Yes No Select Yes to clear the computer s resource configuration data and No not to clear it Setting this field to Yes is useful should the computer s resource configuration ever be destroyed or corrupted The Yes setting forces the computer to clear its current resource and Plug and Play information and thereby prevent resource conflicts Once the computer s resource configuration is erased t...

Страница 25: ...ate maximum power savings that is the monitor and fan are shut off and the CPU and hard disk are powered down Any mouse or keyboard activity quickly returns the computer to operation When setting a timer for the field Power Management should be set to Enabled Alternately this option may be disabled Power management must be enabled to use this option Quick suspend Disabled Ctrl Alt Esc Ctrl Alt Scr...

Страница 26: ...ve Selecting Write Protect can prevent boot sector viruses from being copied onto the hard disk drive Network server Enabled Disabled Enabling this option keeps the computer from being accessed during network operation System backup reminder Disabled Daily Weekly Monthly Enables or disables the system backup reminder message Custom sign on banner is Not user selectable Tells if the custom sign on ...

Страница 27: ...ng either the supervisor or the user password Whatever setting has been chosen it only becomes functional if a Supervisor Password and a User Password when User has been chosen for the setting has been set Virus check reminder Disabled Daily Weekly Monthly Enables or disables the virus check reminder message Keyboard quick lock Enable Disable To enable this feature Set a Supervisor Password and a ...

Страница 28: ...ected Keep circuit boards and components away from non conductors Keep clothing away from circuit boards and components Keep circuit boards in anti static bags Be cautious when AC power is exposed when working on an assembly Always use an ISOLATION TRANSFORMER when diagnosing any terminals monitors or power supplies when AC power is applied Be cautious of very high voltage potentials when working ...

Страница 29: ...ded Materials Cleaning agent should be an all purpose cleaner that is used in house Required Special Tools None Remedial Diagnostic Test Software QAPLUS fe PC Advanced Diagnostic Software latest version Partnumber 22 00908 06 Recommended Virus Detection and Cleanup Software F PROT Virus Detection and Cleanup Software latest version Network locations North America South America Australia and New Ze...

Страница 30: ...CO FCO Information BIOS version information Refer to the Digital DECpc Bulletin Board Support for the latest information on BIOS upgrades Network locations North America South America Australia and New Zealand PCBUHD DKB300 WC30 BBSFILES Europe Africa Middle and Far East SUTRA D6 PUBLIC ...

Страница 31: ... cords The computer s cover must be removed prior to installing any hardware option To remove the cover 1 Unlock cover 2 Lift both side locks out then turn towards front of computer to release cover from chassis 3 Carefully slide cover toward front of chassis until it clears lip of front bezel 4 Carefully lift cover from chassis DEC00278 2 DEC00343 2 Figure 3 1 Unlocking the Cover Figure 3 2 Relea...

Страница 32: ...Components VENTURIS Pentium Slimline Models Legend Description A Power supply B Main logic board C 3 inch diskette drive D Front access drive bay E Front internal drive bay F Riser card ISA PCI G Rear internal drive bay under power supply F B C E D A G Figure 3 4 VENTURIS Pentium Slimline models ...

Страница 33: ...egend Description A Power supply B Main logic board C 3 inch diskette drive D Front access drive bay E Front internal drive bay F Riser card ISA PCI G Rear internal drive bay under power supply H Front access drive bay that supports two PCMCIA slots DEC00682 4 A B C D E F G H Figure 3 5 VENTURIS Pentium Full Profile Models ...

Страница 34: ...ansion boards and one PCI expansion board or One ISA expansion board and two PCI expansion boards Expansion Slot Slot Type Description J4 ISA Supports full length industry standard 16 bit ISA expansion boards Uses the top expansion slot at the rear panel J3 ISA Supports full length industry standard 16 bit ISA expansion boards Uses the middle expansion slot at the rear panel Designated as a shared...

Страница 35: ...he fourth expansion slot at the rear panel Designated as a shared slot with PCI slot J2 1 J2 PCI Supports full length 32 bit PCI local bus expansion boards Uses the fourth expansion slot at the rear panel Designated as a shared slot with ISA slot J3 1 J1 PCI Supports half length 32 bit PCI local bus expansion boards Uses the bottom expansion slot at the rear panel 1 Only one expansion board can re...

Страница 36: ...reful not to bend the pins CAUTION Do not touch any electronic component unless you are safely grounded Wear a grounded wrist strap or touch an exposed metal part of the system box chassis A static discharge from your fingers can result in permanent damage to electronic components VENTURIS 560 Models Main Logic Board Jumper Settings Settings shown in bold italics are factory defaults Feature Descr...

Страница 37: ...ing CPU clock 75 MHz 90 and 120 MHz 100 and 133 MHz 50 MHz 60 MHz 66MHz J21 J22 open J21 open J22 jumpered J21 J22 jumpered CPU core bus frequency ratio 75 90 and 100 MHz 120 and 133 MHz 3 2 2 1 J27 open J27 jumpered Recovery mode Normal Recovery mode J10 open J10 jumpered Password clear Normal mode Password clear MFG test J11 open J11 jumpered CMOS clear Normal Discharge J16 pins 1 and 2 jumpered...

Страница 38: ...PC Service Procedures MCS Logistics Engineering Nijmegen 41 VENTURIS Pentium version 1 0 Main Logic Board Jumper Locations 1 2 J27 J16 J21 3 J22 J11 J10 Figure 3 9 VENTURIS Pentium version 1 0 Main Logic Board Jumper Locations ...

Страница 39: ...pered J25 jumpered J27 open Recovery mode Normal Recovery mode J10 open J10 jumpered Password clear Normal mode Password clear MFG test J11 open J11 jumpered Discharge CMOS Note on some versions of this board J16 is not installed Normal operation Discharge CMOS J16 pins 1 and 2 jumpered J16pins 2 and 3 jumpered Voltage regulator setting VR STD CPU voltage VRE CPU voltage J35 open J35jumpered Boot ...

Страница 40: ...rocedures MCS Logistics Engineering Nijmegen 43 VENTURIS Pentium version 2 0 Main Logic Board Jumper Locations DEC00683 4 J35 J21 J22 J11 J10 J27 J25 J16 J32 1 2 3 Figure 3 10 VENTURIS Pentium version 2 0 Main Logic Board Jumper Locations ...

Страница 41: ...amount can be increased up to 64 MB However when adding additional memory make sure to Install 32 bit SIMMs having an access time of 70 ns or less Fill one or two sockets using the same SIMM size type and speed for socket 0 and 1 Supported SIMM sizes 4 MB 8 MB 16 MB and 32 MB Fill socket 0 before 1 Socket 0 Socket 1 Total 4 MB 4 MB 8 MB 8 MB 4 MB 4 MB 8 MB 8 MB 8 MB 16 MB 16 MB 16 MB 16 MB 16 MB 3...

Страница 42: ...me of 70 ns or less Supported SIMM sizes 4 MB 8 MB 16 MB 32 MB or 64 MB For improved performance VENTURIS computers are designed with interleaved memory This feature requires that both sockets are populated Ensure that the SIMM in each socket is the same type size and speed Therefore a 4 MB SIMM in Bank 0 requires a 4 MB SIMM in Bank 1 Onboard Bank 0 Bank 1 Total 8 MB 8 MB 8 MB 4 MB 4 MB 16 MB 8 M...

Страница 43: ... a time Ensure that the SIMM in each bank is the same type size and speed Therefore a 4 MB SIMM in bank 1 requires a 4 MB SIMM in bank 2 Onboard Bank 1 Bank 2 Bank 3 Bank 4 Total 8 MB 8 MB 8 MB 4 MB 4 MB 16 MB 8 MB 4 MB 4 MB 16 MB 8 MB 4 MB 4 MB 4 MB 4 MB 24 MB 8 MB 4 MB 4 MB 8 MB 8 MB 32 MB 8 MB 4 MB 4 MB 16 MB 16 MB 48 MB 8 MB 4 MB 4 MB 32 MB 32 MB 80 MB 8 MB 8 MB 8 MB 24 MB 8 MB 8 MB 8 MB 24 MB...

Страница 44: ...5 E computer comes with 8 MB of EDO memory hardwired to the main logic board This amount can be increased up to a maximum of 128 MB using the two SIMM sockets on the main logic board However when adding SIMMs make sure to Install 32 bit EDO SIMMs having an access time of 70 ns or less Supported SIMM sizes 4 MB 8 MB 16 MB 32 MB or 64 MB Onboard Bank 0 Bank 1 Total 8 MB 8 MB 8 MB 4 MB 4 MB 16 MB 8 M...

Страница 45: ...subassembly in order to install remove and or connect certain components and peripheral devices To open the subassembly 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove cover 4 Slide front locking mechanism to right to release subassembly 5 Lift up on subassembly and lock in place Figure 3 14 Release front locking mechanism Figure 3 15 Lock in pl...

Страница 46: ...der to install remove and or connect certain components and peripheral devices To open the subassembly 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove cover 4 Pull tab A toward front of computer to release subassembly 5 Lift up on subassembly and lock in place DEC00686 2 Figure 3 16 Opening the VENTURIS Full Profile Device Bay Power Supply Subas...

Страница 47: ...t side of diskette drive to chassis 5 Open the device bay power supply subassembly Refer to Opening the Device Bay Power Supply Subassembly 6 Disconnect power and ribbon cables 7 Remove two screws securing the right side for SL models and left side for FP models of diskette drive to chassis 8 Slide the diskette drive out of the front of the chassis Figure 3 17 Removing the 3 inch diskette drive on...

Страница 48: ...r 2 Disconnect external devices ac power and monitor power 3 Unlock and remove cover 4 Remove all connectors 5 Remove all expansion boards 6 Remove the riser card and bracket 7 Remove screws and lift the board out Primairy PCI IDE Drive Power connectors Secondary PCI IDE Drive Diskette Drive Mouse Connector Keyboard Connector Figure 3 19 Removing the VENTURIS Pentium Main Logic Board ...

Страница 49: ... the device bay and power supply subassembly carefully release the rear latch 4 Carefully slide entire subassembly away from chassis and place upside down on antistatic surface 5 Loosen two screws securing power on off switch to chassis 6 Remove screws securing power supply to chassis 7 Remove power supply and power on off switch from the subassembly Figure 3 20 Removing the Power Supply on the VE...

Страница 50: ...r 2 Disconnect external devices ac power and monitor power 3 Unlock and remove cover 4 Lift up on lever to release old CPU 5 Remove old CPU 6 Install new CPU 7 Make sure pin 1 on CPU is aligned with pin 1 on ZIF socket designation A Figure 3 22 8 Return release lever to its original position and then set all appropriate CPU jumpers 9 Replace and lock cover Refer to Replacing and Locking the Cover ...

Страница 51: ...o memory upgrade chip 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove cover 4 Remove upgrade chips from packaging and install in socket 5 Make sure pin 1 on chip is aligned with pin 1 on socket A Figure 3 23 6 Replace and lock cover Refer to Replacing and Locking the Cover 7 Connect external devices and restore power 8 Run the BIOS Setup utility...

Страница 52: ...gs using the BIOS Setup utility 2 Turn off the computer 3 Disconnect external devices ac power and monitor power 4 Remove cover 5 Carefully extract old RTC from socket 6 Install new RTC Digital part number 21 39125 01 Dallas part number DS1287A or equivalent 7 Replace and lock cover Refer to Replacing and Locking the Cover 8 Connect external devices and restore power 9 Run BIOS Setup utility to re...

Страница 53: ...ct external devices and restore power 8 Run BIOS Setup utility to reconfigure computer using recorded configuration settings from step 1 WARNING There is a danger of battery explosion if a lithium battery is incorrectly replaced To prevent damage to the computer be sure the side faces up when installing a new battery Also be sure to replace the battery with either a Digital P N 12 41474 05 Toshiba...

Страница 54: ...ate data cable connection topic listed below 4 Connect appropriate power cable to device 5 Release device bay and power supply subassembly rear latch 6 Close subassembly and then secure to chassis using front locking mechanism 7 Replace and lock cover 8 Connect external devices and restore power 9 Run BIOS Setup utility to configure computer NOTE Make sure the cable is connected with correct orien...

Страница 55: ...g Nijmegen Diskette Data Cable Connections Legend Diskette Drive Component A Power supply B Power connections C Diskette drive connections D Main logic board diskette drive connection E Diskette drives DEC00687 2 A B C E E D C Figure 3 26 Diskette Drive Data Cable Connections ...

Страница 56: ...egen 59 IDE Data Cable Connections Legend IDE Drive Component A Power supply B Power connections C IDE hard disk drive connections D Main logic board IDE drive connections E IDE hard disk drive F IDE CD ROM drive Figure 3 27 IDE Data Cable Connections D C DEC00688 2 A B C E F C ...

Страница 57: ...l hard disk drives spin down completely and then turn it back on If the POST detects an error refer to Troubleshooting and take the appropriate steps to correct the problem After the problem has been resolved restart the computer Run the BIOS Setup utility Make sure all necessary changes have been made to the CONFIG SYS and AUTOEXEC BAT files Make sure all necessary video printer and application d...

Страница 58: ...puter battery etc BeepCode Error 2 2 3 BIOS ROM checksum 3 1 1 Test DRAM refresh 3 1 3 Test keyboard controller 3 4 1 Test 512K base address lines 3 4 3 Test 512K base memory 2 1 2 3 Check ROM copyright notice 2 2 3 1 Test for unexpected interrupts POST and Boot Messages The POST displays messages to alert to errors in hardware software and firmware or to provide operating information about the co...

Страница 59: ...alid NVRAM media type NVRAM access failed Run the BIOS Setup Utility and restore all settings to original values If the problem persists replace the defective component Keyboard controller error Keyboard error Keyboard locked Unlock key switch Check the keyboard connection If the connection is secure the keyboard or keyboard controller might have failed If the problem persists replace the defectiv...

Страница 60: ... defective component nnnn System RAM passed Where nnnn is the amount of system RAM in kilobytes that tested successfully System timer error The computers timer test failed Run the BIOS Setup Utility and restore all settings to original values If the problem persists replace the defective component UMB upper limit segment address nnnn Displays the address of the upper limit of UMB This indicates th...

Страница 61: ...and then reboot the computer Refer to the supplied ICU documentation Remove expansion board and reboot If computer boots without errors replace expansion board Computer operates incorrectly after installing optional external cache module External cache module installed incorrectly External cache module has failed Remove external cache module and reinstall Replace external cache module Computer fai...

Страница 62: ...down the computer and connect the mouse to the mouse port Install the appropriate mouse driver Computer does not recognize an internal or external SCSI device SCSI device jumpers incorrectly set SCSI cable not terminated Terminating resistors not removed from the SCSI device SCSI adapter failure SCSI ID conflicts There might be a boot sector virus Hard disk boot sector is missing Refer to the supp...

Страница 63: ...ll software on the requested partition Refer to the supplied IDE hard disk drive kit installation instructions Run the BIOS Setup utility to identify the correct drive type Secure all cable connections Run the BIOS Setup utility and set the IDE controller option to Enabled Connect the boot disk to the inner IDE connector on the main logic board Run appropriate software to detect and remove viruses...

Страница 64: ...iskette drive cannot read or write information Onboard diskette controller disabled Diskette write protection is enabled Run the BIOS Setup utility and set the diskette controller to Enabled Run the BIOS Setup utility and set the diskette write protection to Disabled Monitor Troubleshooting Problem Possible Cause Action Monitor power indicator is not on Monitor is turned off Power indicator is def...

Страница 65: ... the documentation supplied with the monitor and or video drivers Monitor display not centered while loading Windows video drivers Monitor type incorrectly set Set the correct monitor type Refer to appropriate video driver documentation QAPlus FE Error Messages Component Messages Solution CPU Arithmetic Function Failed General Functions Failed Exception Interrupt in Protected Mode Refresh Failure ...

Страница 66: ...Battery clock Clock Stopped Invalid Date RTC Interrupt Failed Run Setup Replace battery clock CMOS CMOS Clock Test Failed Change time from Setup menu in QAPLUS Serial port COM port failed Serial Chip Error Serial Compare Error Serial Timeout Error Check COM device Check connections Replace COM device Replace COM device Video adapter Video Failed Error in Video Buffer Replace video adapter Replace ...

Страница 67: ...le some network expansion boards require a specific memory location If that location is already allocated a memory conflict results and the expansion board will not operate as expected Note that some memory I O and interrupt locations can be changed using the BIOS Setup utility CAUTION Before changing any memory or address location refer to the documentation supplied with the optional device expan...

Страница 68: ...F0 Clear math coprocessor busy 0F1 Reset math coprocessor 0F8 0FF Math coprocessor 170 177 Secondary IDE controller 1F0 1F7 Primary IDE controller 278 27A LPT2 2E8 2EF COM4 2F8 2FF COM2 376 377 Secondary IDE controller alt status device address 378 37A LPT1 3B0 3DF VGA register 3BC 3BE LPT3 3E8 3EF COM3 3F0 3F7 Diskette controller 3F6 3F7 Primary IDE controller alt status device address 3F8 3FF CO...

Страница 69: ...ed IRQ4 COM1 COM3 if enabled IRQ5 LPT2 IRQ6 Diskette drive if enabled IRQ7 LPT1 LPT3 if enabled IRQ8 RTC IRQ9 IRQ11 Reserved IRQ12 Mouse interrupt if enabled IRQ13 Math co processor IRQ14 IDE adapter 0 if enabled IRQ15 IDE adapter 1 if enabled DMA Channel Assignment Channel Controller Function 0 1 Refresh 1 1 Not used 2 1 Diskette floppy disk controller if enabled 3 1 ECP 4 2 Cascade DMA 5 2 Not u...

Страница 70: ...estructive test Floppy Disk all tests Keyboard all tests COM Ports all tests LPT Ports all tests Pointer Device all tests 3 Successful bootstrap of the on the computer installed Operating System Operating Systems Supported MS DOS version 6 22 and earlier Windows 3 1 Windows for Workgroups 3 11 OS 2 3 0 WARP Windows NT Workstation Windows 95 SCO UNIX System V release3 2 4 client only Novell Netware...

Страница 71: ...ice Notes This appendix contains the current Service Notes for the VENTURIS Pentium product line Symptom System does not boot Problem Riser card 3 or 5 slot presses main board to hard the result is a short circuit to the metal chassis Solution Dismantle enclosure and remount riser card carefully ...

Страница 72: ... French ER 920WW UP VENTURIS 575 FP575 User s Guide Italian ER 920WW UI VENTURIS 575 FP575 User s Guide German ER 920WW UG VENTURIS 575 FP575 User s Guide Spanish ER 920WW US VENTURIS 575 FP575 User s Guide Japanese ER 920WW UJ On Line Bulletin Boards The most current product information and technical support is also available on line The most current device drivers Setup diskettes and technical t...

Страница 73: ... best to make this document a valuable support to your service efforts for Digital Please fill out the reader feedback form and send or fax it to Digital Equipment Parts Center b v Att MCS Logistics Engineering Call Desk P O Box 6774 6503 GG Nijmegen Holland If you have questions about this document please do not hesitate to get in contact with our Call Desk The number is Phone xx31 24 3529666 Fax...

Страница 74: ... this form are used at Digital s direction Did you find errors in this manual If so specify by page What is your general reaction to this manual format completeness organization etc Is the documentation understandable usable and sufficient for your needs What material is missing Additional comments Name Title Company Dept Address City State Country ...

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