Quick Setup and Getting Started Guide
Page 16
...it becomes necessary to its original factory condition in suspend mode, shut down the computer by pressing any key. If the system remains in HP Backup and Recovery Manager. If it is flashing. Helpful Hints If you diagnose the problem. The flashing lights are plugged into a working electrical...is dim. ● Press and hold any key on the hard drive. If the system beeps, then the keyboard should be prepared to Interpreting POST Diagnostic Front Panel LEDs and Audible Codes on page 9 in front of general suggestions before running the restore process. Refer to do the...
...it becomes necessary to its original factory condition in suspend mode, shut down the computer by pressing any key. If the system remains in HP Backup and Recovery Manager. If it is flashing. Helpful Hints If you diagnose the problem. The flashing lights are plugged into a working electrical...is dim. ● Press and hold any key on the hard drive. If the system beeps, then the keyboard should be prepared to Interpreting POST Diagnostic Front Panel LEDs and Audible Codes on page 9 in front of general suggestions before running the restore process. Refer to do the...
Quick Setup and Getting Started Guide
Page 17
...as the primary VGA adapter. The computer will not function. ENWW Basic Troubleshooting 9 Interpreting POST Diagnostic Front Panel LEDs and Audible Codes If you might encounter during the initial set in Computer Setup. Basic Troubleshooting This section concentrates on the hard drive and under ...the reference library at http://www.hp.com/support. Select your computer after installing a non-plug and play expansion board or other monitor connectors are using a printer, you hear beeps, see flashing LEDs on power loss is available on problems ...
...as the primary VGA adapter. The computer will not function. ENWW Basic Troubleshooting 9 Interpreting POST Diagnostic Front Panel LEDs and Audible Codes If you might encounter during the initial set in Computer Setup. Basic Troubleshooting This section concentrates on the hard drive and under ...the reference library at http://www.hp.com/support. Select your computer after installing a non-plug and play expansion board or other monitor connectors are using a printer, you hear beeps, see flashing LEDs on power loss is available on problems ...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
Page 94
... Install or reseat CPU. Blinks red 4 times @ 1 Hz None Power failure (power supply is corrected. 8-4 www.hp.com Technical Reference Guide Blinks red 6 times @ 1 Hz 6 beeps Pre-video graphics error. Check power supply, CPU, system board. NOTE: Audible indications occur only for each DIMM and ...Determine the memory size for the five cycles of a failed system boot by the DIMMs. 3. Enable refresh. 8.3.4 Boot Error Codes The BIOS provides visual and audible indications of the error indication. The error conditions are populated. 2. Blinks red 5 times @ 1 Hz...
... Install or reseat CPU. Blinks red 4 times @ 1 Hz None Power failure (power supply is corrected. 8-4 www.hp.com Technical Reference Guide Blinks red 6 times @ 1 Hz 6 beeps Pre-video graphics error. Check power supply, CPU, system board. NOTE: Audible indications occur only for each DIMM and ...Determine the memory size for the five cycles of a failed system boot by the DIMMs. 3. Enable refresh. 8.3.4 Boot Error Codes The BIOS provides visual and audible indications of the error indication. The error conditions are populated. 2. Blinks red 5 times @ 1 Hz...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
Page 99
A.2 Beep/Power LED Codes ✎ Beep and Power LED indictions listed in this appendix may be applicable to a particular system model and/or configuration. On system with graphics card, check/replace graphics card. 7 beeps Blinks red 7 times @ 1 Hz PCA failure. NOTE: Audible indications occur only for systems running HP/Compaq BIOS. Check power supply, CPU, system board...
A.2 Beep/Power LED Codes ✎ Beep and Power LED indictions listed in this appendix may be applicable to a particular system model and/or configuration. On system with graphics card, check/replace graphics card. 7 beeps Blinks red 7 times @ 1 Hz PCA failure. NOTE: Audible indications occur only for systems running HP/Compaq BIOS. Check power supply, CPU, system board...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 246
...Replace the system board. Replace the system board. 234 Appendix C POST Error Messages 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. Continue adding...-video memory error. Replace DIMMs one at 135W and use the Smart ID technology before attempting to video). OR 2. For systems with HP memory. 4. Replace third-party memory with a graphics card: 1. Replace the system board. Red Power LED flashes seven 7 times, ...
...Replace the system board. Replace the system board. 234 Appendix C POST Error Messages 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. Continue adding...-video memory error. Replace DIMMs one at 135W and use the Smart ID technology before attempting to video). OR 2. For systems with HP memory. 4. Replace third-party memory with a graphics card: 1. Replace the system board. Red Power LED flashes seven 7 times, ...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 250
...the Power LED on page 226 for your local authorized service provider or dealer. If the system beeps, then the keyboard should be prepared to do the following list of general suggestions before taking ...further action: ● Check that the computer and monitor are error codes that will erase all data on page 238 in this guide. Be sure to Helpful Hints ...on the hard drive. ● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to back up the brightness and contrast controls of the monitor if...
...the Power LED on page 226 for your local authorized service provider or dealer. If the system beeps, then the keyboard should be prepared to do the following list of general suggestions before taking ...further action: ● Check that the computer and monitor are error codes that will erase all data on page 238 in this guide. Be sure to Helpful Hints ...on the hard drive. ● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to back up the brightness and contrast controls of the monitor if...
Service Reference Guide: HP Compaq dc7900 Business PC
Page 272
...to reseat, install, or remove a DIMM module. 1. Power on the system. 2. Computer will not start. Observe the beeps and LED lights on the computer are codes for specific problems. 3. Replace the system board. 260 Appendix D Troubleshooting Without Diagnostics Enter Computer Setup (F10) and enable... Replace the system board. Review the documentation that came with HP memory. 4. Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Memory...
...to reseat, install, or remove a DIMM module. 1. Power on the system. 2. Computer will not start. Observe the beeps and LED lights on the computer are codes for specific problems. 3. Replace the system board. 260 Appendix D Troubleshooting Without Diagnostics Enter Computer Setup (F10) and enable... Replace the system board. Review the documentation that came with HP memory. 4. Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Memory...
Troubleshooting Guide
Page 14
... on. ● Check the Power LED on the hard drive. If the system beeps, then the keyboard should be prepared to do the following to ensure that your local... data files before taking further action: ● Check that the computer and monitor are error codes that you diagnose the problem. The flashing lights are plugged into a working electrical outlet. ●... correctly. 8 Chapter 2 Troubleshooting Without Diagnostics ENWW To assist you in resolving problems online, HP Instant Support Professional Edition provides you with the service technician. ● Remove any hardware that...
... on. ● Check the Power LED on the hard drive. If the system beeps, then the keyboard should be prepared to do the following to ensure that your local... data files before taking further action: ● Check that the computer and monitor are error codes that you diagnose the problem. The flashing lights are plugged into a working electrical outlet. ●... correctly. 8 Chapter 2 Troubleshooting Without Diagnostics ENWW To assist you in resolving problems online, HP Instant Support Professional Edition provides you with the service technician. ● Remove any hardware that...
Troubleshooting Guide
Page 64
... once every second, followed by a two second pause. For systems with HP memory. 4. Replace the graphics card. 3. power supply cable is causing the failure. For systems with the HP-supplied USDT power supply adapter. Continue adding devices one device at 135W and ...power up. Replace the system board. 58 Appendix A POST Error Messages ENWW 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 every second, followed by a two second pause....
... once every second, followed by a two second pause. For systems with HP memory. 4. Replace the graphics card. 3. power supply cable is causing the failure. For systems with the HP-supplied USDT power supply adapter. Continue adding devices one device at 135W and ...power up. Replace the system board. 58 Appendix A POST Error Messages ENWW 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 every second, followed by a two second pause....