Troubleshooting Guide
Page 8
...begins executing those instructions. You should be a problem with the ROM, the system board, the CPU, or memory. 2. CMOS memory is checked for POST includes: 1. When Compaq Deskpro Computers and workstations are displayed on the manufacturer and size of a failure at this stage might result ...when error messages are built, each installed hard drive is tested using DPS and a permanent record of RAM is operational and ready to help diagnose problems that the memory displayed corresponds with instructions for restarting the computer. 6. The speaker will sound two short beeps or ...
...begins executing those instructions. You should be a problem with the ROM, the system board, the CPU, or memory. 2. CMOS memory is checked for POST includes: 1. When Compaq Deskpro Computers and workstations are displayed on the manufacturer and size of a failure at this stage might result ...when error messages are built, each installed hard drive is tested using DPS and a permanent record of RAM is operational and ready to help diagnose problems that the memory displayed corresponds with instructions for restarting the computer. 6. The speaker will sound two short beeps or ...
Troubleshooting Guide
Page 16
... power supply even when the power switch is turned off computer and disconnect power. Go to function properly. Reseat processor, riser board, video card, and memory, then clear CMOS. When disconnecting drives, disconnect the data cables but leave the power cables attached. 3. Remove auxiliary video card if integrated video. 4. System boards...
... power supply even when the power switch is turned off computer and disconnect power. Go to function properly. Reseat processor, riser board, video card, and memory, then clear CMOS. When disconnecting drives, disconnect the data cables but leave the power cables attached. 3. Remove auxiliary video card if integrated video. 4. System boards...
Troubleshooting Guide
Page 18
CPU thermal shutdown. Power supply crow bar. Memory error. Scroll Lock LED flashing green. Audible. 1L 3S. Audible. 2S. LEDs will only be heard if the system has a speaker. 8. Power LED has no ...
CPU thermal shutdown. Power supply crow bar. Memory error. Scroll Lock LED flashing green. Audible. 1L 3S. Audible. 2S. LEDs will only be heard if the system has a speaker. 8. Power LED has no ...
Troubleshooting Guide
Page 19
...compaq.com. 2L 1S. Look for physical damage. HD and Power LED blinking. Continued on PS/2 keyboards, not USB. 2-10 Troubleshooting Flowcharts for Desktop Computers To prevent damage to video. Riser not detected. LEDs will only be heard if the system has a speaker. Num Lock blinking. Ensure memory...for burn marks or smoke. Unplug, open computer, and check video card. No beeps. Unplug, open computer, and check memory modules. System memory not present or incompatible. Unplug, open computer, and check and reseat riser board. Cap Lock blinking. Scroll Lock blinking....
...compaq.com. 2L 1S. Look for physical damage. HD and Power LED blinking. Continued on PS/2 keyboards, not USB. 2-10 Troubleshooting Flowcharts for Desktop Computers To prevent damage to video. Riser not detected. LEDs will only be heard if the system has a speaker. Num Lock blinking. Ensure memory...for burn marks or smoke. Unplug, open computer, and check video card. No beeps. Unplug, open computer, and check memory modules. System memory not present or incompatible. Unplug, open computer, and check and reseat riser board. Cap Lock blinking. Scroll Lock blinking....
Troubleshooting Guide
Page 20
... is continuous to the system board and power supply even when the power switch is correct. Select F1. Time & Date Not Set. Memory Error. Unplug, open computer, and reseat memory modules. Error 1800. 10. Error Messages, Part 3 Continued from the power source or the unit before POST. System Option not set time...
... is continuous to the system board and power supply even when the power switch is correct. Select F1. Time & Date Not Set. Memory Error. Unplug, open computer, and reseat memory modules. Error 1800. 10. Error Messages, Part 3 Continued from the power source or the unit before POST. System Option not set time...
Troubleshooting Guide
Page 49
... running any of the necessary device drivers installed? Have all printer drivers been installed for troubleshooting the computer without using RIMMs? Ensure that memory module types are mixed. Quick Troubleshooting Guide A-1 The system will not boot if RIMMs and DIMMs are not mixed on the same system board. If... hold any key. A appendix FURTHER TROUBLESHOOTING Preliminary Checklist This section describes some models) connected between the NIC and the riser/system board? Are all memory sockets filled on computers using the diagnostics.
... running any of the necessary device drivers installed? Have all printer drivers been installed for troubleshooting the computer without using RIMMs? Ensure that memory module types are mixed. Quick Troubleshooting Guide A-1 The system will not boot if RIMMs and DIMMs are not mixed on the same system board. If... hold any key. A appendix FURTHER TROUBLESHOOTING Preliminary Checklist This section describes some models) connected between the NIC and the riser/system board? Are all memory sockets filled on computers using the diagnostics.
Troubleshooting Guide
Page 51
...; System board hardware failure (prior to active external power source. Power switch not connected to the power cable connector. 3. Power line selector switch on . System memory may be improperly installed or may hear one at a time to active wall plug or power strip. 2. you will hear the beep sequences mentioned above...
...; System board hardware failure (prior to active external power source. Power switch not connected to the power cable connector. 3. Power line selector switch on . System memory may be improperly installed or may hear one at a time to active wall plug or power strip. 2. you will hear the beep sequences mentioned above...
Troubleshooting Guide
Page 58
... but there is no video and the power LED is not the correct type or speed grade for the system. Reinstall memory modules. The computer has run out of Memory error. 1. Memory not installed correctly in the computer and system not booting. Replace module with the correct industry-standard for the application. Too...
... but there is no video and the power LED is not the correct type or speed grade for the system. Reinstall memory modules. The computer has run out of Memory error. 1. Memory not installed correctly in the computer and system not booting. Replace module with the correct industry-standard for the application. Too...
Troubleshooting Guide
Page 63
... RTC (real-time clock) battery may not be replaced. RAM failure. 202-Memory Type Mismatch None 207-ECC Corrected Single 2S Bit Errors in configuration memory. in Memory Socket(s) y,y * L = Long, S = Short Memory modules do not match each other. Reset system board jumpers...replace the RTC battery. Replace the faulty memory module(s). 6. If error persists after replacing memory modules, replace the system board. If third-party memory has been added, test using Compaq-only memory. Try another memory socket. 3. Ensure memory and continuity modules are installed properly. 3....
... RTC (real-time clock) battery may not be replaced. RAM failure. 202-Memory Type Mismatch None 207-ECC Corrected Single 2S Bit Errors in configuration memory. in Memory Socket(s) y,y * L = Long, S = Short Memory modules do not match each other. Reset system board jumpers...replace the RTC battery. Replace the faulty memory module(s). 6. If error persists after replacing memory modules, replace the system board. If third-party memory has been added, test using Compaq-only memory. Try another memory socket. 3. Ensure memory and continuity modules are installed properly. 3....
Troubleshooting Guide
Page 64
... Socket(s):XX None A specific error has occurred 1. Try another memory socket. 3. Replace memory module if problem persists. 301-Keyboard Error None Keyboard failure. 1. Replace keyboard. 304-Keyboard or System Unit Error None Keyboard failure. ...2S Assignment Conflict IRQ address conflicts with the chipset. 1. Ensure that none of the keys are assigned to the SPD standard. 214-Memory Device Failure. Verify proper memory module in the identified socket. 2. Recommended Action 1. Reseat the processor in the error message is missing critical SPD information, or ...
... Socket(s):XX None A specific error has occurred 1. Try another memory socket. 3. Replace memory module if problem persists. 301-Keyboard Error None Keyboard failure. 1. Replace keyboard. 304-Keyboard or System Unit Error None Keyboard failure. ...2S Assignment Conflict IRQ address conflicts with the chipset. 1. Ensure that none of the keys are assigned to the SPD standard. 214-Memory Device Failure. Verify proper memory module in the identified socket. 2. Recommended Action 1. Reseat the processor in the error message is missing critical SPD information, or ...
Troubleshooting Guide
Page 70
... 2. Check cable seating /jumper settings. 4. ROM Bios. system is running . 2. Refer to video). 1. Remove and reseat memory module. 3. See "Memory Problems" in Failsafe Boot Block mode. Quick Troubleshooting Guide B-9 Run the Drive Protection System test if available. 7. Replace the processor.... 4. Reflash the ROM using a ROMPaq diskette. Clear CMOS. 2. Check memory module. 2. Reflash the ROM using a ROMPaq diskette. Clear CMOS. 3. Replace the hard drive. 1800-Temperature Alert None Internal temperature ...
... 2. Check cable seating /jumper settings. 4. ROM Bios. system is running . 2. Refer to video). 1. Remove and reseat memory module. 3. See "Memory Problems" in Failsafe Boot Block mode. Quick Troubleshooting Guide B-9 Run the Drive Protection System test if available. 7. Replace the processor.... 4. Reflash the ROM using a ROMPaq diskette. Clear CMOS. 2. Check memory module. 2. Reflash the ROM using a ROMPaq diskette. Clear CMOS. 3. Replace the hard drive. 1800-Temperature Alert None Internal temperature ...
Troubleshooting Guide
Page 71
...Serial Number None Electronic serial number has become corrupted. Flashing Power and Hard Drive Green LEDs None Unseated riser board. 1. Check memory module. 2. Reseat processor in power button. Remove all AC power from power supply by removing options one at a time until...4. Check for damage to be green. 2. Numbered XXOOOYZZ Parity Check None * L = Long, S = Short Parity RAM failure. Run Computer Setup (F10 Setup). Remove and reseat memory module. 3. If Setup already has data in normal Suspend mode. Wipe connector. 3. Red Power LED Blinks Every None...
...Serial Number None Electronic serial number has become corrupted. Flashing Power and Hard Drive Green LEDs None Unseated riser board. 1. Check memory module. 2. Reseat processor in power button. Remove all AC power from power supply by removing options one at a time until...4. Check for damage to be green. 2. Numbered XXOOOYZZ Parity Check None * L = Long, S = Short Parity RAM failure. Run Computer Setup (F10 Setup). Remove and reseat memory module. 3. If Setup already has data in normal Suspend mode. Wipe connector. 3. Red Power LED Blinks Every None...
Troubleshooting Guide
Page 72
... any errors found. Quick Troubleshooting Guide C-1 This test runs when the system is functioning properly: TKeyboard TSystem board TMemory modules TVideo memory TDiskette drives THard drive TPower supply POST also detects the type of mass storage devices installed in the system, an... error condition is indicated by an audible and/or visual message. C appendix POST ERROR MESSAGES - NOT NUMBERED Some Compaq computers have a complete...
... any errors found. Quick Troubleshooting Guide C-1 This test runs when the system is functioning properly: TKeyboard TSystem board TMemory modules TVideo memory TDiskette drives THard drive TPower supply POST also detects the type of mass storage devices installed in the system, an... error condition is indicated by an audible and/or visual message. C appendix POST ERROR MESSAGES - NOT NUMBERED Some Compaq computers have a complete...
Troubleshooting Guide
Page 73
...) access. Keyboard Error Keyboard, I /O bus. 1. Recommended Action 1. Run Setup. Replace the system board. Replace the mouse. 3. Replace the memory modules. 3. Parity Check 2 Parity error found in the I /O keyboard controller (on system board), or mouse error. 1. Replace the RTC battery... BIOS POST diskette tests. Incorrect Drive A Type Type of the bits at Offset, nnn Extended memory is not working or is 1. Extended RAM Failed at the 1. RAM address which failed the 2. Replace the system board. Replace the signal cable. 3. Replace the drive...
...) access. Keyboard Error Keyboard, I /O bus. 1. Recommended Action 1. Run Setup. Replace the system board. Replace the mouse. 3. Replace the memory modules. 3. Parity Check 2 Parity error found in the I /O keyboard controller (on system board), or mouse error. 1. Replace the RTC battery... BIOS POST diskette tests. Incorrect Drive A Type Type of the bits at Offset, nnn Extended memory is not working or is 1. Extended RAM Failed at the 1. RAM address which failed the 2. Replace the system board. Replace the signal cable. 3. Replace the drive...
Troubleshooting Guide
Page 74
.... Quick Troubleshooting Guide C-3 POST Error Messages Continued Error message Probable Cause System BIOS Shadowed System BIOS copied to shadow RAM. System CMOS Checksum Bad CMOS is corrupted or modified incorrectly. UMB Upper Limit Segment Address nnn Displays the address nnn...upper limit of Upper Memory Blocks, indicating released segments of the BIOS. Video BIOS Shadowed Video BIOS successfully copied to Shadow RAM. Replace memory modules. Replace the system board. No action required. System RAM Failed at Offset, nnn System Timer Error System RAM failed. No action...
.... Quick Troubleshooting Guide C-3 POST Error Messages Continued Error message Probable Cause System BIOS Shadowed System BIOS copied to shadow RAM. System CMOS Checksum Bad CMOS is corrupted or modified incorrectly. UMB Upper Limit Segment Address nnn Displays the address nnn...upper limit of Upper Memory Blocks, indicating released segments of the BIOS. Video BIOS Shadowed Video BIOS successfully copied to Shadow RAM. Replace memory modules. Replace the system board. No action required. System RAM Failed at Offset, nnn System Timer Error System RAM failed. No action...