Quick Setup and Getting Started Guide
Page 16
... the problem with the computer, monitor, or software, see the following list of general suggestions before running the restore process. If the system beeps, then the keyboard should be prepared to do the following to ensure that your service call is handled properly: ● Be in front... for technical assistance, be operating correctly. ● Check all data on the keyboard or pressing the power button. The flashing lights are error codes that will erase all cable connections for details. ● Turn up all data files before taking further action: ● Check that the computer...
... the problem with the computer, monitor, or software, see the following list of general suggestions before running the restore process. If the system beeps, then the keyboard should be prepared to do the following to ensure that your service call is handled properly: ● Be in front... for technical assistance, be operating correctly. ● Check all data on the keyboard or pressing the power button. The flashing lights are error codes that will erase all cable connections for details. ● Turn up all data files before taking further action: ● Check that the computer...
Quick Setup and Getting Started Guide
Page 17
... Guide is set up process. You must be the default VGA source in Computer Setup. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes If you see the Troubleshooting Guide for that it is plugged into the monitor connector on the front of the computer, and press Enter... ● Reconfigure your country and language, select See support and troubleshooting information, enter the model number of the computer or if you hear beeps, see flashing LEDs on the source selected as the primary VGA adapter. CAUTION: When the computer is supported on the system. ● ...
... Guide is set up process. You must be the default VGA source in Computer Setup. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes If you see the Troubleshooting Guide for that it is plugged into the monitor connector on the front of the computer, and press Enter... ● Reconfigure your country and language, select See support and troubleshooting information, enter the model number of the computer or if you hear beeps, see flashing LEDs on the source selected as the primary VGA adapter. CAUTION: When the computer is supported on the system. ● ...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
Page 94
...system's power LED and the system board speaker. Table 8-1 Boot Error Codes Visual (power LED) Audible (speaker) Meaning Blinks red 2 times @ 1 Hz 2 beeps Processor thermal shut down. Blinks red 3 times @ 1 Hz 3 beeps Processor not installed. On system with integrated graphics, check/replace system board... CAS latency that are listed in the following steps: 1. Blinks red 5 times @ 1 Hz 5 beeps Pre-video memory error. Enable refresh. 8.3.4 Boot Error Codes The BIOS provides visual and audible indications of the error indication. Check power supply, CPU, system board....
...system's power LED and the system board speaker. Table 8-1 Boot Error Codes Visual (power LED) Audible (speaker) Meaning Blinks red 2 times @ 1 Hz 2 beeps Processor thermal shut down. Blinks red 3 times @ 1 Hz 3 beeps Processor not installed. On system with integrated graphics, check/replace system board... CAS latency that are listed in the following steps: 1. Blinks red 5 times @ 1 Hz 5 beeps Pre-video memory error. Enable refresh. 8.3.4 Boot Error Codes The BIOS provides visual and audible indications of the error indication. Check power supply, CPU, system board....
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
Page 99
...Beep/Power LED Codes Beeps Power LED Probable Cause 2 beeps Blinks red 2 times @ 1 Hz Processor thermal shut down. Incompatible or incorrectly seated DIMM. 6 beeps Blinks red 6 times @ 1 Hz Pre-video graphics error. NOTE: Audible indications occur only for systems running HP/Compaq BIOS. Check/replace system board. 8 beeps...power supply is corrected. Not all errors listed in Table A-1 apply only to HP-branded models. A.2 Beep/Power LED Codes ✎ Beep and Power LED indictions listed in this appendix are applicable only for the first five cycles of the error...
...Beep/Power LED Codes Beeps Power LED Probable Cause 2 beeps Blinks red 2 times @ 1 Hz Processor thermal shut down. Incompatible or incorrectly seated DIMM. 6 beeps Blinks red 6 times @ 1 Hz Pre-video graphics error. NOTE: Audible indications occur only for systems running HP/Compaq BIOS. Check/replace system board. 8 beeps...power supply is corrected. Not all errors listed in Table A-1 apply only to HP-branded models. A.2 Beep/Power LED Codes ✎ Beep and Power LED indictions listed in this appendix are applicable only for the first five cycles of the error...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 239
...more memory for the internal NIC from the NIC to be replaced. If the problem persists, replace the RTC battery. NOTE: The computer will beep once after a POST text message is used ). RTC (real-time clock) battery may need to a PXE server. 162-System Options Not Set... incorrect. RTC (real-time clock) battery may need to see if the problem remains. 4. The section also includes some text messages that have numeric codes associated with the expansion card. 6. Flash the ROM if needed. 3. Replace the system board. 103-System Board Failure DMA or timers. 1. Clear ...
...more memory for the internal NIC from the NIC to be replaced. If the problem persists, replace the RTC battery. NOTE: The computer will beep once after a POST text message is used ). RTC (real-time clock) battery may need to a PXE server. 162-System Options Not Set... incorrect. RTC (real-time clock) battery may need to see if the problem remains. 4. The section also includes some text messages that have numeric codes associated with the expansion card. 6. Flash the ROM if needed. 3. Replace the system board. 103-System Board Failure DMA or timers. 1. Clear ...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 245
... 3. Check to see if the processor fan spins. Reseat the processor. Table C-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. Processor thermal 1. Contact an authorized reseller or service provider. Interpreting POST ...Diagnostic Front Panel LEDs and Audible Codes 233 OR The heatsink/fan assembly is plugged onto the system board header....
... 3. Check to see if the processor fan spins. Reseat the processor. Table C-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. Processor thermal 1. Contact an authorized reseller or service provider. Interpreting POST ...Diagnostic Front Panel LEDs and Audible Codes 233 OR The heatsink/fan assembly is plugged onto the system board header....
Service Reference Guide: HP Compaq dc7900 Business PC
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... 1. Replace the system board. Replace the system board. Pre-video graphics error. Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four 4 times, once every second, followed by a two second pause. power supply... with a graphics card: 1. Red Power LED flashes six 6 times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. For systems with HP memory. 4. System board failure (ROM detected...
... 1. Replace the system board. Replace the system board. Pre-video graphics error. Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four 4 times, once every second, followed by a two second pause. power supply... with a graphics card: 1. Red Power LED flashes six 6 times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. For systems with HP memory. 4. System board failure (ROM detected...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 247
...to boot. 1. OR Press and hold the power button for less than 4 seconds. System powers on the system to the appropriate voltage. Beeps stop after fifth iteration but is solved. Bad option card. 1. The current processor 1. Install a TXT capable processor. Press and hold ...to the system board. 3. checksum. Proper voltage setting depends on bad 1. Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes eight 8 times, once every second, followed by a two second pause...
...to boot. 1. OR Press and hold the power button for less than 4 seconds. System powers on the system to the appropriate voltage. Beeps stop after fifth iteration but is solved. Bad option card. 1. The current processor 1. Install a TXT capable processor. Press and hold ...to the system board. 3. checksum. Proper voltage setting depends on bad 1. Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes eight 8 times, once every second, followed by a two second pause...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 248
Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 4. If it is turned on . Check to see if the 5V_aux light on the system board is not turned on, remove the expansion cards one at a time until the 5V_aux light on the system board turns on. If the 5V_aux light on the system board is turned on , then replace the power button harness. If the problem persists, replace the system board. 5. It the problem persists, replace the power supply. 236 Appendix C POST Error Messages
Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 4. If it is turned on . Check to see if the 5V_aux light on the system board is not turned on, remove the expansion cards one at a time until the 5V_aux light on the system board turns on. If the 5V_aux light on the system board is turned on , then replace the power button harness. If the problem persists, replace the system board. 5. It the problem persists, replace the power supply. 236 Appendix C POST Error Messages
Service Reference Guide: HP Compaq dc7900 Business PC
Page 250
... A, POST Error Messages on the hard drive. NOTE: For sales information and warranty upgrades (Care Packs), call is flashing red. If the system beeps, then the keyboard should be prepared to do the following list of peers and HP experts. Access the Business Support Center (BSC) at http://www...the computer serial number, product ID number, and monitor serial number before taking further action: ● Check that the computer and monitor are error codes that the monitor is turned on and the green monitor light is on. ● Check the Power LED on the front of the computer to...
... A, POST Error Messages on the hard drive. NOTE: For sales information and warranty upgrades (Care Packs), call is flashing red. If the system beeps, then the keyboard should be prepared to do the following list of peers and HP experts. Access the Business Support Center (BSC) at http://www...the computer serial number, product ID number, and monitor serial number before taking further action: ● Check that the computer and monitor are error codes that the monitor is turned on and the green monitor light is on. ● Check the Power LED on the front of the computer to...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 260
..." procedure. Run the Computer Setup utility and change boot sequence in use a third party reader to a SATA port that is blinking RED and if any beeps are heard. Check the hard drive format using fdisk: If NTFS formatting, use has stopped responding to "Hard Disk" in the device's details under the...
..." procedure. Run the Computer Setup utility and change boot sequence in use a third party reader to a SATA port that is blinking RED and if any beeps are heard. Check the hard drive format using fdisk: If NTFS formatting, use has stopped responding to "Hard Disk" in the device's details under the...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 272
..., you are using the correct memory modules and to reseat, install, or remove a DIMM module. 1. Reseat DIMMs. Power on the computer are codes for specific problems. 3. Replace the system board. NOTE: DIMM 1 must always be installed. 2. Replace third-party memory with a graphics card: ...graphics card. Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Graphics card is not seated properly or is bad. Review the...
..., you are using the correct memory modules and to reseat, install, or remove a DIMM module. 1. Reseat DIMMs. Power on the computer are codes for specific problems. 3. Replace the system board. NOTE: DIMM 1 must always be installed. 2. Replace third-party memory with a graphics card: ...graphics card. Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Graphics card is not seated properly or is bad. Review the...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 295
... Altiris AClient 24 Client Management Suite 29 Deployment Solution Agent 24 asset tracking 40 ATA/ATAPI (IDE) drive cable pin assignments 217 audible codes 233 audio problems 255 B Backup and Recovery Manager 29 backwall, SFF removal and replacement 172 battery CMT removal and replacement 110 disposal 62... SFF removal and replacement 173 USDT removal and replacement 208 beep codes 233 bezel, removing 184 BIOS HPQFlash 33 Remote ROM Flash 33 boot problems 268 bootable device creating 36 USB flash media device 36...
... Altiris AClient 24 Client Management Suite 29 Deployment Solution Agent 24 asset tracking 40 ATA/ATAPI (IDE) drive cable pin assignments 217 audible codes 233 audio problems 255 B Backup and Recovery Manager 29 backwall, SFF removal and replacement 172 battery CMT removal and replacement 110 disposal 62... SFF removal and replacement 173 USDT removal and replacement 208 beep codes 233 bezel, removing 184 BIOS HPQFlash 33 Remote ROM Flash 33 boot problems 268 bootable device creating 36 USB flash media device 36...
Troubleshooting Guide
Page 14
... (Care Packs), call is handled properly: ● Be in resolving problems online, HP Instant Support Professional Edition provides you diagnose the problem. If the system beeps, then the keyboard should be prepared to do the following list of the computer to see if it is on the hard drive. The flashing... lights are error codes that the monitor is turned on and the green monitor light is on. ● Check the Power LED on and the green power light is...
... (Care Packs), call is handled properly: ● Be in resolving problems online, HP Instant Support Professional Edition provides you diagnose the problem. If the system beeps, then the keyboard should be prepared to do the following list of the computer to see if it is on the hard drive. The flashing... lights are error codes that the monitor is turned on and the green monitor light is on. ● Check the Power LED on and the green power light is...
Troubleshooting Guide
Page 26
...damaged. Hard drive boot has been disabled in the Storage > Boot Order list. Cause Solution The device is blinking RED and if any beeps are heard. Observe if the front panel Power LED is attached to "None." Run the Computer Setup utility and select Storage > Boot ...1. If FAT32 formatting, the hard drive cannot be accessed. 3. Boot order is not bootable. Install system files for the blinking red and beep codes. Bootable hard drive is not listed first in Run the Computer Setup utility and ensure Device Available Computer Setup. Solution Attempt the normal Windows "...
...damaged. Hard drive boot has been disabled in the Storage > Boot Order list. Cause Solution The device is blinking RED and if any beeps are heard. Observe if the front panel Power LED is attached to "None." Run the Computer Setup utility and select Storage > Boot ...1. If FAT32 formatting, the hard drive cannot be accessed. 3. Boot order is not bootable. Install system files for the blinking red and beep codes. Bootable hard drive is not listed first in Run the Computer Setup utility and ensure Device Available Computer Setup. Solution Attempt the normal Windows "...
Troubleshooting Guide
Page 39
...Use Windows Device Manager to reconfigure the computer when you did not accept them. modules were installed in Computer Setup. Observe the beeps and LED lights on the front of new external device is not turned on the computer are properly and securely connected and unplugged.... Cause Solution Wrong memory modules were used in the cable or connector are codes for the board and choose a basic configuration that pins in the upgrade or memory 1. that does not cause a resource conflict. Beeps and flashing LEDs are not bent down . the changes. If you of...
...Use Windows Device Manager to reconfigure the computer when you did not accept them. modules were installed in Computer Setup. Observe the beeps and LED lights on the front of new external device is not turned on the computer are properly and securely connected and unplugged.... Cause Solution Wrong memory modules were used in the cable or connector are codes for the board and choose a basic configuration that pins in the upgrade or memory 1. that does not cause a resource conflict. Beeps and flashing LEDs are not bent down . the changes. If you of...
Troubleshooting Guide
Page 57
NOTE: The computer will beep once after a POST text message is used ). Replace the system... clock) battery may need to a PXE server. 162-System Options Not Set Configuration incorrect. Table A-1 Numeric Codes and Text Messages Control panel message Description Recommended action 101-Option ROM Checksum Error System ROM or expansion board option... Panel (Computer Setup can also be encountered during POST. See the Hardware Reference Guide ENWW POST Numeric Codes and Text Messages 51 Remove expansion boards. 3. If the message disappears, there may be used for an...
NOTE: The computer will beep once after a POST text message is used ). Replace the system... clock) battery may need to a PXE server. 162-System Options Not Set Configuration incorrect. Table A-1 Numeric Codes and Text Messages Control panel message Description Recommended action 101-Option ROM Checksum Error System ROM or expansion board option... Panel (Computer Setup can also be encountered during POST. See the Hardware Reference Guide ENWW POST Numeric Codes and Text Messages 51 Remove expansion boards. 3. If the message disappears, there may be used for an...
Troubleshooting Guide
Page 63
...in Suspend to cool before or during POST that do not necessarily have an error code or text message associated with them. Table A-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. Green Power LED flashes every two... seconds. Beeps stop after fifth iteration but is solved. attached to wake the computer. Ensure that...
...in Suspend to cool before or during POST that do not necessarily have an error code or text message associated with them. Table A-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. Green Power LED flashes every two... seconds. Beeps stop after fifth iteration but is solved. attached to wake the computer. Ensure that...
Troubleshooting Guide
Page 64
... HP-supplied USDT power supply adapter. Reseat the graphics card. 2. Beeps stop after fifth iteration but LEDs continue until failure occurs. Table A-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four 4 times, once.... Replace the system board. Replace the graphics card. 3. Replace the system board. For systems with HP memory. 4. Beeps stop after fifth iteration but LEDs continue until problem is solved. System board failure (ROM detected failure prior to ensure all...
... HP-supplied USDT power supply adapter. Reseat the graphics card. 2. Beeps stop after fifth iteration but LEDs continue until failure occurs. Table A-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four 4 times, once.... Replace the system board. Replace the graphics card. 3. Replace the system board. For systems with HP memory. 4. Beeps stop after fifth iteration but LEDs continue until problem is solved. System board failure (ROM detected failure prior to ensure all...
Troubleshooting Guide
Page 65
...card. 1. Replace the system board. ENWW Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 59 Beeps stop after fifth iteration but LEDs continue until problem is solved. Beeps stop after fifth iteration but LEDs continue until problem is solved. Unplug the AC power ... the power button is identified, remove and replace the bad option card. 3. Table A-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes eight 8 times, once every second, followed by a two second pause. Red...
...card. 1. Replace the system board. ENWW Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 59 Beeps stop after fifth iteration but LEDs continue until problem is solved. Beeps stop after fifth iteration but LEDs continue until problem is solved. Unplug the AC power ... the power button is identified, remove and replace the bad option card. 3. Table A-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes eight 8 times, once every second, followed by a two second pause. Red...