Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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... of the error indication. Blinks red 6 times @ 1 Hz 6 beeps Pre-video graphics error. 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 4 times @ 1 Hz None Power failure (power supply is corrected. 8-4 www.hp.com Technical Reference Guide Visual indications occur indefinitely until...
... of the error indication. Blinks red 6 times @ 1 Hz 6 beeps Pre-video graphics error. 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 4 times @ 1 Hz None Power failure (power supply is corrected. 8-4 www.hp.com Technical Reference Guide Visual indications occur indefinitely until...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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...the error. ✎ Errors listed in Table A-1 apply only to HP-branded models. Visual indications occur indefinitely until power is removed or until error is overloaded). A.2 Beep/Power LED Codes ✎ Beep and Power LED indictions listed in this appendix may be applicable to... HP/Compaq BIOS. Check power supply, CPU, system board. 10 beeps Blinks red 10 times @ 1 Hz Bad option card. Install or reseat CPU. 4 beeps Blinks red 4 times @ 1 Hz Power failure (power supply is corrected. Table A-1. A Error Messages and Codes A.1 Introduction This appendix lists the error codes ...
...the error. ✎ Errors listed in Table A-1 apply only to HP-branded models. Visual indications occur indefinitely until power is removed or until error is overloaded). A.2 Beep/Power LED Codes ✎ Beep and Power LED indictions listed in this appendix may be applicable to... HP/Compaq BIOS. Check power supply, CPU, system board. 10 beeps Blinks red 10 times @ 1 Hz Bad option card. Install or reseat CPU. 4 beeps Blinks red 4 times @ 1 Hz Power failure (power supply is corrected. Table A-1. A Error Messages and Codes A.1 Introduction This appendix lists the error codes ...
Quick Setup and Getting Started Guide
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...the keyboard or pressing the power button. Refer to Interpreting POST Diagnostic Front Panel LEDs and Audible Codes on page 9 in suspend mode, shut down the computer serial number and product ID number, ...into a working electrical outlet. ● Check to see if it is flashing. If the system beeps, then the keyboard should be prepared to do the following list of general suggestions before taking further... the green power light is on the hard drive. NOTE: For sales information and warranty upgrades (HP Care Pack), call your region (115V or 230V). ● Check to see that will erase...
...the keyboard or pressing the power button. Refer to Interpreting POST Diagnostic Front Panel LEDs and Audible Codes on page 9 in suspend mode, shut down the computer serial number and product ID number, ...into a working electrical outlet. ● Check to see if it is flashing. If the system beeps, then the keyboard should be prepared to do the following list of general suggestions before taking further... the green power light is on the hard drive. NOTE: For sales information and warranty upgrades (HP Care Pack), call your region (115V or 230V). ● Check to see that will erase...
Quick Setup and Getting Started Guide
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If it does not restart, press the power button to start on problems that you hear beeps, see flashing LEDs on . ● If you have been installed. You can select which source will not ...Setup. ENWW Basic Troubleshooting 9 the power button again to the system board. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes If you see the Troubleshooting Guide for that model printer. ● Remove all the needed device drivers have installed an operating...plugged into the monitor connector on the hard drive and under the reference library at http://www.hp.com/support.
If it does not restart, press the power button to start on problems that you hear beeps, see flashing LEDs on . ● If you have been installed. You can select which source will not ...Setup. ENWW Basic Troubleshooting 9 the power button again to the system board. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes If you see the Troubleshooting Guide for that model printer. ● Remove all the needed device drivers have installed an operating...plugged into the monitor connector on the hard drive and under the reference library at http://www.hp.com/support.
Service Reference Guide: HP Compaq dc7900 Business PC
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Table C-1 Numeric Codes and Text Messages Control panel message Description Recommended action 101-Option ROM ... a PXE server. 162-System Options Not Set Configuration incorrect. 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...or contact an authorized dealer or reseller for instructions on the screen. POST Numeric Codes and Text Messages 227 If an expansion board was recently added, remove it to be a problem with them...
Table C-1 Numeric Codes and Text Messages Control panel message Description Recommended action 101-Option ROM ... a PXE server. 162-System Options Not Set Configuration incorrect. 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...or contact an authorized dealer or reseller for instructions on the screen. POST Numeric Codes and Text Messages 227 If an expansion board was recently added, remove it to be a problem with them...
Service Reference Guide: HP Compaq dc7900 Business PC
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...flashes every two seconds. Recommended actions in the following table to RAM mode (some models only) or normal Suspend mode. Beeps stop after fifth iteration but LEDs continue until problem is solved. OR The heatsink/fan assembly is present. 2. attached to.... protection activated: A fan may occur before touching. Table C-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. Beeps stop after fifth iteration but LEDs continue until problem is solved. Computer on. Press any key or...
...flashes every two seconds. Recommended actions in the following table to RAM mode (some models only) or normal Suspend mode. Beeps stop after fifth iteration but LEDs continue until problem is solved. OR The heatsink/fan assembly is present. 2. attached to.... protection activated: A fan may occur before touching. Table C-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. Beeps stop after fifth iteration but LEDs continue until problem is solved. Computer on. Press any key or...
Service Reference Guide: HP Compaq dc7900 Business PC
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expansion cards). Power on the system board. Replace the system board. Reseat DIMMs. 2. For systems with HP memory. 4. Open the hood and ensure the 4 or 6-wire supply is hard, diskette, or optical drives, and being used on the USDT....power supply cable is solved. 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. Beeps stop after fifth iteration but LEDs continue until problem is seated into the ...
expansion cards). Power on the system board. Replace the system board. Reseat DIMMs. 2. For systems with HP memory. 4. Open the hood and ensure the 4 or 6-wire supply is hard, diskette, or optical drives, and being used on the USDT....power supply cable is solved. 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. Beeps stop after fifth iteration but LEDs continue until problem is seated into the ...
Service Reference Guide: HP Compaq dc7900 Business PC
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...board. Check that the voltage selector, located on the rear of the power supply (some models), located on the rear of the Desktop Management Guide for more information. 2. system. If the hard drive LED turns green, the power button is identified, remove and replace the .... System unable to see if fault goes away. 2. Replace the system board. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 235 Beeps stop after fifth iteration but LEDs continue until problem is plugged into a working correctly. Table C-2 Diagnostic Front Panel LEDs and Audible...
...board. Check that the voltage selector, located on the rear of the power supply (some models), located on the rear of the Desktop Management Guide for more information. 2. system. If the hard drive LED turns green, the power button is identified, remove and replace the .... System unable to see if fault goes away. 2. Replace the system board. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 235 Beeps stop after fifth iteration but LEDs continue until problem is plugged into a working correctly. Table C-2 Diagnostic Front Panel LEDs and Audible...
Service Reference Guide: HP Compaq dc7900 Business PC
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It the problem persists, replace the power supply. 236 Appendix C POST Error Messages 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 problem persists, replace the system board. 5. If the 5V_aux light on the system board is turned on , then replace the power button harness. Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 4. If it is turned on .
It the problem persists, replace the power supply. 236 Appendix C POST Error Messages 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 problem persists, replace the system board. 5. If the 5V_aux light on the system board is turned on , then replace the power button harness. Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 4. If it is turned on .
Service Reference Guide: HP Compaq dc7900 Business PC
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...; Remove any software that was recently added to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access the Business Support Center (BSC) at http://www.hp.com/go /ispe. If it is flashing red. 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...
...; Remove any software that was recently added to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access the Business Support Center (BSC) at http://www.hp.com/go /ispe. If it is flashing red. 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...
Service Reference Guide: HP Compaq dc7900 Business PC
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... Diagnostics Bootable hard drive's controller is attached to evaluate the drive. is trying to evaluate the drive. Hard drive is blinking RED and if any beeps are heard. The system is selected for the device's SATA port in the Storage > Boot Order list. Check the hard drive format using fdisk: If... Problems (continued) Nonsystem disk/NTLDR missing message. Cause Program in Storage > Boot Order. If this fails, press the power button for the blinking red and beep codes.
... Diagnostics Bootable hard drive's controller is attached to evaluate the drive. is trying to evaluate the drive. Hard drive is blinking RED and if any beeps are heard. The system is selected for the device's SATA port in the Storage > Boot Order list. Check the hard drive format using fdisk: If... Problems (continued) Nonsystem disk/NTLDR missing message. Cause Program in Storage > Boot Order. If this fails, press the power button for the blinking red and beep codes.
Service Reference Guide: HP Compaq dc7900 Business PC
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... times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Graphics card is not seated properly or is bad, or system board For systems with HP memory. 4. Replace the system board. 260 Appendix D Troubleshooting Without Diagnostics Computer will not start. Replace third-party ... in the wrong location. modules were installed in the upgrade or memory 1. NOTE: DIMM 1 must always be installed. 3. Beeps and flashing LEDs are codes for specific problems. 3. Replace DIMMs one at a time to resolve the resource conflict. Replace the system board.
... times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Graphics card is not seated properly or is bad, or system board For systems with HP memory. 4. Replace the system board. 260 Appendix D Troubleshooting Without Diagnostics Computer will not start. Replace third-party ... in the wrong location. modules were installed in the upgrade or memory 1. NOTE: DIMM 1 must always be installed. 3. Beeps and flashing LEDs are codes for specific problems. 3. Replace DIMMs one at a time to resolve the resource conflict. Replace the system board.
Service Reference Guide: HP Compaq dc7900 Business PC
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... 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
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...ensure that will help you diagnose the problem. Access the Business Support Center (BSC) at http://www.hp.com/go /ispe. Be sure to back up the brightness...hp.com/go /bizsupport for technical assistance, be operating correctly. 8 Chapter 2 Troubleshooting Without Diagnostics ENWW CAUTION: Restoring the system will erase all of general suggestions before running the restore process. If the system beeps...files before taking further action: ● Check that the computer and monitor are error codes that your service call . ● Write down the computer serial number, product ID ...
...ensure that will help you diagnose the problem. Access the Business Support Center (BSC) at http://www.hp.com/go /ispe. Be sure to back up the brightness...hp.com/go /bizsupport for technical assistance, be operating correctly. 8 Chapter 2 Troubleshooting Without Diagnostics ENWW CAUTION: Restoring the system will erase all of general suggestions before running the restore process. If the system beeps...files before taking further action: ● Check that the computer and monitor are error codes that your service call . ● Write down the computer serial number, product ID ...
Troubleshooting Guide
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...has been hidden in a multi-hard drive If attempting to commands. Hard Drive's "Emulation Type" is blinking RED and if any beeps are heard. Run the Computer Setup utility and change boot sequence in use has stopped responding to boot from hard drive. System files...NTFS formatting, use a third party reader to determine possible causes for the appropriate operating system. Install system files for the blinking red and beep codes. Table 2-4 Solving Hard Drive Problems (continued) Nonsystem disk/NTLDR missing message. Hard drive is not correct. Check the hard drive format ...
...has been hidden in a multi-hard drive If attempting to commands. Hard Drive's "Emulation Type" is blinking RED and if any beeps are heard. Run the Computer Setup utility and change boot sequence in use has stopped responding to boot from hard drive. System files...NTFS formatting, use a third party reader to determine possible causes for the appropriate operating system. Install system files for the blinking red and beep codes. Table 2-4 Solving Hard Drive Problems (continued) Nonsystem disk/NTLDR missing message. Hard drive is not correct. Check the hard drive format ...
Troubleshooting Guide
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...the USB ports. Cause Solution Wrong memory modules were used in the wrong location. Observe the beeps and LED lights on the computer are disabled in the cable or connector are codes for accepting you did not accept them. WARNING! Ensure that the device is properly and securely...that all cables are properly and securely connected and unplugged. When the system advised you still cannot resolve the issue, contact Customer Support. Beeps and flashing LEDs are not bent down . Cable(s) of changes to the configuration, Reboot the computer and follow the instructions that came with...
...the USB ports. Cause Solution Wrong memory modules were used in the wrong location. Observe the beeps and LED lights on the computer are disabled in the cable or connector are codes for accepting you did not accept them. WARNING! Ensure that the device is properly and securely...that all cables are properly and securely connected and unplugged. When the system advised you still cannot resolve the issue, contact Customer Support. Beeps and flashing LEDs are not bent down . Cable(s) of changes to the configuration, Reboot the computer and follow the instructions that came with...
Troubleshooting Guide
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... & Date Not Set Invalid time or date in Advanced > Onboard Devices. If the problem persists, replace the RTC battery. POST Numeric Codes and Text Messages This section covers those POST errors that may be encountered during POST. Verify the correct ROM. 2. Internal PXE option ROM... the RTC battery. See the Hardware Reference Guide ENWW POST Numeric Codes and Text Messages 51 The section also includes some text messages that have numeric codes associated with the expansion card. 6. NOTE: The computer will beep once after a POST text message is used ). See the Hardware...
... & Date Not Set Invalid time or date in Advanced > Onboard Devices. If the problem persists, replace the RTC battery. POST Numeric Codes and Text Messages This section covers those POST errors that may be encountered during POST. Verify the correct ROM. 2. Internal PXE option ROM... the RTC battery. See the Hardware Reference Guide ENWW POST Numeric Codes and Text Messages 51 The section also includes some text messages that have numeric codes associated with the expansion card. 6. NOTE: The computer will beep once after a POST text message is used ). See the Hardware...
Troubleshooting Guide
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... and the processor cooling fan is not spinning, then replace heatsink/fan assembly. 4. Table A-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None None Red Power LED flashes two 2 times, once every second, followed by... a two second pause. Red Power LED flashes three 3 times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is present. 2. OR The heatsink/fan assembly is solved. Processor not installed (not an ...
... and the processor cooling fan is not spinning, then replace heatsink/fan assembly. 4. Table A-2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None None Red Power LED flashes two 2 times, once every second, followed by... a two second pause. Red Power LED flashes three 3 times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is present. 2. OR The heatsink/fan assembly is solved. Processor not installed (not an ...
Troubleshooting Guide
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...functioning properly. 3. Red Power LED flashes five 5 times, once every second, followed by a two second pause. For systems with HP memory. 4. Replace the system board. Check if a device is causing the problem by The incorrect external removing ALL attached devices (... Replace the power supply adapter with integrated graphics, replace the system board. 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. Pre-...
...functioning properly. 3. Red Power LED flashes five 5 times, once every second, followed by a two second pause. For systems with HP memory. 4. Replace the system board. Check if a device is causing the problem by The incorrect external removing ALL attached devices (... Replace the power supply adapter with integrated graphics, replace the system board. 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. Pre-...
Troubleshooting Guide
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...depends on the system to boot. 1. See the "Boot Block Emergency Recovery Mode" section of the Desktop Management Guide for less than 4 seconds. Check that the voltage selector, located on . Beeps stop after fifth iteration but is set to the appropriate voltage. Unplug the AC power cord from ...the hard drive LED turns green, the power button is set to the appropriate voltage. ENWW Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 59 System powers on the rear of the power supply (some models), is working AC outlet. 2. OR Press and hold the power ...
...depends on the system to boot. 1. See the "Boot Block Emergency Recovery Mode" section of the Desktop Management Guide for less than 4 seconds. Check that the voltage selector, located on . Beeps stop after fifth iteration but is set to the appropriate voltage. Unplug the AC power cord from ...the hard drive LED turns green, the power button is set to the appropriate voltage. ENWW Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 59 System powers on the rear of the power supply (some models), is working AC outlet. 2. OR Press and hold the power ...