Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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...power on the system board and/or in starting fan(s). Technical Reference Guide www.hp.com 4-13 bd Bad option card Blinks red 10 times @ 1 Hz [1] None Replace option card NOTES: Beeps are repeated for 5 cycles, after which only blinking LED indication continues. [1] ...Repeated after 2 second pause. [2] Beeps are some electrical differences between form factors and between some models, although the overall functionally...
...power on the system board and/or in starting fan(s). Technical Reference Guide www.hp.com 4-13 bd Bad option card Blinks red 10 times @ 1 Hz [1] None Replace option card NOTES: Beeps are repeated for 5 cycles, after which only blinking LED indication continues. [1] ...Repeated after 2 second pause. [2] Beeps are some electrical differences between form factors and between some models, although the overall functionally...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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...stereo microphone. All control functions such as a tape deck. Front Panel Mic In Rear Panel Line In [1] 82801 ICH HD Audio Interface PC Beep HD Audio I/F Header P23 Mic Audio (L/R) Line Audio (L/R) Speaker Audio (mono) AD1884A HD Audio Codec Header Headphone P23 Audio (L/R) Line Audio... Out jack as Microphone In Figure 5-9. L+R = Combined left and right channels (stereo). Audio Subsystem Functional Block Diagram Technical Reference Guide www.hp.com 5-13 Line Out-This output uses a three-conductor (stereo) 1/8-inch mini-jack for connecting a set of 32-ohm (nom.) ...
...stereo microphone. All control functions such as a tape deck. Front Panel Mic In Rear Panel Line In [1] 82801 ICH HD Audio Interface PC Beep HD Audio I/F Header P23 Mic Audio (L/R) Line Audio (L/R) Speaker Audio (mono) AD1884A HD Audio Codec Header Headphone P23 Audio (L/R) Line Audio... Out jack as Microphone In Figure 5-9. L+R = Combined left and right channels (stereo). Audio Subsystem Functional Block Diagram Technical Reference Guide www.hp.com 5-13 Line Out-This output uses a three-conductor (stereo) 1/8-inch mini-jack for connecting a set of 32-ohm (nom.) ...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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...for less than 4 seconds. If no LED light then check power button/power supply cables to boot. Beeps stop after 5 cycles. The front panel (bezel) power LED provides a visual indication of beeps, with 2-second pause between cycles. Blinks red 5 times @ 1 Hz [1] Pre-video memory error. ... board (CPU power connector P3). Blinks red 6 times @ 1 Hz [1] Pre-video graphics error. Check power supply, CPU, system board. Technical Reference Guide www.hp.com 7-7 Blinks red 4 times @ 1 Hz [1] Power failure (power supply is used to RAM (S3) Blinks red 2 times @ 1 Hz [1] Processor thermal...
...for less than 4 seconds. If no LED light then check power button/power supply cables to boot. Beeps stop after 5 cycles. The front panel (bezel) power LED provides a visual indication of beeps, with 2-second pause between cycles. Blinks red 5 times @ 1 Hz [1] Pre-video memory error. ... board (CPU power connector P3). Blinks red 6 times @ 1 Hz [1] Pre-video graphics error. Check power supply, CPU, system board. Technical Reference Guide www.hp.com 7-7 Blinks red 4 times @ 1 Hz [1] Power failure (power supply is used to RAM (S3) Blinks red 2 times @ 1 Hz [1] Processor thermal...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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... the error indication. 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/replace system board. Check power supply, CPU, system board. Visual indications occur indefinitely ...power LED and the system board speaker. On system with integrated graphics, check/replace system board. Blinks red 7 times @ 1 Hz 7 beeps PCA failure. Check storage devices, expansion cards and/or system board (CPU power connector P3). Check air flow, fan operation, and CPU heat...
... the error indication. 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/replace system board. Check power supply, CPU, system board. Visual indications occur indefinitely ...power LED and the system board speaker. On system with integrated graphics, check/replace system board. Blinks red 7 times @ 1 Hz 7 beeps PCA failure. Check storage devices, expansion cards and/or system board (CPU power connector P3). Check air flow, fan operation, and CPU heat...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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... a particular system model and/or configuration. Check air flow, fan operation, and CPU heatsink 3 beeps Blinks red 3 times @ 1 Hz Processor not installed. Table A-1. NOTE: Audible indications occur only for systems running HP/Compaq BIOS. Beep/Power LED Codes Beeps Power LED Probable Cause 2 beeps Blinks red 2 times @ 1 Hz Processor thermal shut down. Check/replace system board...
... a particular system model and/or configuration. Check air flow, fan operation, and CPU heatsink 3 beeps Blinks red 3 times @ 1 Hz Processor not installed. Table A-1. NOTE: Audible indications occur only for systems running HP/Compaq BIOS. Beep/Power LED Codes Beeps Power LED Probable Cause 2 beeps Blinks red 2 times @ 1 Hz Processor thermal shut down. Check/replace system board...
Quick Setup and Getting Started Guide
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...this guide for details. ● Turn up the brightness and contrast controls of the monitor if the monitor is handled properly: ● Be in HP Backup and Recovery Manager. The flashing lights are plugged into a working electrical outlet. ● Check to see that will erase all data files ... that the voltage select switch (some models) is set to the appropriate voltage for your local authorized service provider or dealer. If the system beeps, then the keyboard should be prepared to do the following list of your system. ● Remove any software that was recently installed. ●...
...this guide for details. ● Turn up the brightness and contrast controls of the monitor if the monitor is handled properly: ● Be in HP Backup and Recovery Manager. The flashing lights are plugged into a working electrical outlet. ● Check to see that will erase all data files ... that the voltage select switch (some models) is set to the appropriate voltage for your local authorized service provider or dealer. If the system beeps, then the keyboard should be prepared to do the following list of your system. ● Remove any software that was recently installed. ●...
Quick Setup and Getting Started Guide
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... system before turning it does not restart, press the power button to start on problems that you hear beeps, see flashing LEDs on the hard drive and under the reference library at http://www.hp.com/support. You must be plugged into these ports, the monitor will not shut down, unplug the...
... system before turning it does not restart, press the power button to start on problems that you hear beeps, see flashing LEDs on the hard drive and under the reference library at http://www.hp.com/support. You must be plugged into these ports, the monitor will not shut down, unplug the...
Service Reference Guide: HP Compaq dc7900 Business PC
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...bypass the title screen, if necessary. Simultaneously, the speaker will automatically power off. 4. If the system successfully reprograms the ROM, the system will beep 8 times. Copying to restart the computer. If you are using a USB flash media device, insert it now. 3. Press Enter to access the... utility. 5. To recover the system after it now. 34 Chapter 4 Desktop Management NOTE: The media must restart the computer and again press F10 before the computer boots to the operating system to enter Computer Setup. ...
...bypass the title screen, if necessary. Simultaneously, the speaker will automatically power off. 4. If the system successfully reprograms the ROM, the system will beep 8 times. Copying to restart the computer. If you are using a USB flash media device, insert it now. 3. Press Enter to access the... utility. 5. To recover the system after it now. 34 Chapter 4 Desktop Management NOTE: The media must restart the computer and again press F10 before the computer boots to the operating system to enter Computer Setup. ...
Service Reference Guide: HP Compaq dc7900 Business PC
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... Failure DMA or timers. 1. If a PCI expansion card was recently added, remove it to free more memory for RTC battery replacement. NOTE: The computer will beep once after a POST text message is used ). Verify the correct ROM. 2. See the Hardware Reference Guide for instructions on installing a new battery, or contact an...
... Failure DMA or timers. 1. If a PCI expansion card was recently added, remove it to free more memory for RTC battery replacement. NOTE: The computer will beep once after a POST text message is used ). Verify the correct ROM. 2. See the Hardware Reference Guide for instructions on installing a new battery, or contact an...
Service Reference Guide: HP Compaq dc7900 Business PC
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... second, followed by a two second pause. OR The heatsink/fan assembly is plugged onto the system board header. Not all models. Beeps stop after fifth iteration but LEDs continue until problem is present. 2. Processor thermal 1. If the processor fan is not spinning, make ... shock and/or hot surfaces, be blocked or not turning. 2. WARNING! Table C-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. None None Red Power LED flashes two ...
... second, followed by a two second pause. OR The heatsink/fan assembly is plugged onto the system board header. Not all models. Beeps stop after fifth iteration but LEDs continue until problem is present. 2. Processor thermal 1. If the processor fan is not spinning, make ... shock and/or hot surfaces, be blocked or not turning. 2. WARNING! Table C-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. None None Red Power LED flashes two ...
Service Reference Guide: HP Compaq dc7900 Business PC
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... solved. Replace the system board. Replace the system board. 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 failure.... Reseat DIMMs. 2. Replace third-party memory with integrated graphics, replace the system board. For systems with HP memory. 4. Reseat the graphics card. 2. Beeps stop after fifth iteration but LEDs continue until problem is solved. OR 2. Power on the USDT. Replace the...
... solved. Replace the system board. Replace the system board. 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 failure.... Reseat DIMMs. 2. Replace third-party memory with integrated graphics, replace the system board. For systems with HP memory. 4. Reseat the graphics card. 2. Beeps stop after fifth iteration but LEDs continue until problem is solved. OR 2. Power on the USDT. Replace the...
Service Reference Guide: HP Compaq dc7900 Business PC
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... Check that the power button harness is solved. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 235 Replace the system board. Beeps stop after fifth iteration but LEDs continue until problem is properly connected to the system board. Install a TXT capable processor. System ...a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is set to power on bad 1. Invalid ROM based on . Reflash the system ROM with the latest BIOS image. See the "Boot Block Emergency Recovery Mode" section of the Desktop Management Guide for less ...
... Check that the power button harness is solved. Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 235 Replace the system board. Beeps stop after fifth iteration but LEDs continue until problem is properly connected to the system board. Install a TXT capable processor. System ...a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is set to power on bad 1. Invalid ROM based on . Reflash the system ROM with the latest BIOS image. See the "Boot Block Emergency Recovery Mode" section of the Desktop Management Guide for less ...
Service Reference Guide: HP Compaq dc7900 Business PC
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If the problem persists, replace the system board. 5. Check to see if the 5V_aux light on the system board is turned on, then replace the power button harness. If it is turned on . 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 . Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 4. It the problem persists, replace the power supply. 236 Appendix C POST Error Messages
If the problem persists, replace the system board. 5. Check to see if the 5V_aux light on the system board is turned on, then replace the power button harness. If it is turned on . 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 . Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 4. It the problem persists, replace the power supply. 236 Appendix C POST Error Messages
Service Reference Guide: HP Compaq dc7900 Business PC
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... for loose connections or incorrect connections. 238 Appendix D Troubleshooting Without Diagnostics Be sure to contact HP support, use HP Instant Support Professional Edition's online chat feature. If the system beeps, then the keyboard should be prepared to do the following list of the computer to see...to back up the brightness and contrast controls of peers and HP experts. Access the Business Support Center (BSC) at http://www.hp.com/go /ispe. ● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to Helpful Hints on page ...
... for loose connections or incorrect connections. 238 Appendix D Troubleshooting Without Diagnostics Be sure to contact HP support, use HP Instant Support Professional Edition's online chat feature. If the system beeps, then the keyboard should be prepared to do the following list of the computer to see...to back up the brightness and contrast controls of peers and HP experts. Access the Business Support Center (BSC) at http://www.hp.com/go /ispe. ● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to Helpful Hints on page ...
Service Reference Guide: HP Compaq dc7900 Business PC
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... . Restart the computer. If fan is plugged in the application. 2. Cause Solution System unable to improve performance by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but is set to the processor. 1. Check that came with the application for suggestions on how to power on some...
... . Restart the computer. If fan is plugged in the application. 2. Cause Solution System unable to improve performance by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but is set to the processor. 1. Check that came with the application for suggestions on how to power on some...
Service Reference Guide: HP Compaq dc7900 Business PC
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... Solution 3. If it is off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but is plugged in the following table.
... Solution 3. If it is off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but is plugged in the following table.
Service Reference Guide: HP Compaq dc7900 Business PC
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... voltage selector, located on . Check if a device is causing the problem by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Power failure (power supply is set to reconfigure the computer when ...you add or remove hardware, such as hard, diskette, or optical drives, and expansion cards). Replace the system board. Replace the power supply adapter with the HP...
... voltage selector, located on . Check if a device is causing the problem by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Power failure (power supply is set to reconfigure the computer when ...you add or remove hardware, such as hard, diskette, or optical drives, and expansion cards). Replace the system board. Replace the power supply adapter with the HP...
Service Reference Guide: HP Compaq dc7900 Business PC
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... diskette that has been hidden in the Storage > Boot Order list. Hard Drive's "Emulation Type" is selected for the blinking red and beep codes. Hard drive is not correct. Observe if the front panel Power LED is listed immediately under Storage > Device Configuration. is set to ... Run the Computer Setup utility and select Storage > Boot Order and ensure the bootable hard drive's controller is blinking RED and if any beeps are heard. See Appendix A, POST Error Messages on page 226 to evaluate the drive. Cause Program in use a third party reader to...
... diskette that has been hidden in the Storage > Boot Order list. Hard Drive's "Emulation Type" is selected for the blinking red and beep codes. Hard drive is not correct. Observe if the front panel Power LED is listed immediately under Storage > Device Configuration. is set to ... Run the Computer Setup utility and select Storage > Boot Order and ensure the bootable hard drive's controller is blinking RED and if any beeps are heard. See Appendix A, POST Error Messages on page 226 to evaluate the drive. Cause Program in use a third party reader to...
Service Reference Guide: HP Compaq dc7900 Business PC
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.... Push the carrier into the enclosure frame so that the connector on the removable hard drive enclosure has Shut down the computer and contact HP for a replacement been activated. enclosure. Either format the media card in the digital camera or select FAT file system to format the media... Solution The removable hard drive carrier is not fully seated in Microsoft Windows XP or Microsoft Windows Vista. The removable hard drive enclosure is beeping and the green LED is not turned to the hard drive enclosure. To restart the computer, press the power button again. Solving Media ...
.... Push the carrier into the enclosure frame so that the connector on the removable hard drive enclosure has Shut down the computer and contact HP for a replacement been activated. enclosure. Either format the media card in the digital camera or select FAT file system to format the media... Solution The removable hard drive carrier is not fully seated in Microsoft Windows XP or Microsoft Windows Vista. The removable hard drive enclosure is beeping and the green LED is not turned to the hard drive enclosure. To restart the computer, press the power button again. Solving Media ...
Service Reference Guide: HP Compaq dc7900 Business PC
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... the on . Cause Solution Monitor is not turned on and the monitor light is plugged into the graphics card connector on the back of the Desktop Management Guide for more information You are not compatible with the monitor and to boot from the inserted media card during the boot process. You... electrical outlet. icon and select the Settings tab. Use the sliding control to select the input that the monitor light is being driven by eight beeps). Use the monitor's on-screen menu controls to reset the resolution.
... the on . Cause Solution Monitor is not turned on and the monitor light is plugged into the graphics card connector on the back of the Desktop Management Guide for more information You are not compatible with the monitor and to boot from the inserted media card during the boot process. You... electrical outlet. icon and select the Settings tab. Use the sliding control to select the input that the monitor light is being driven by eight beeps). Use the monitor's on-screen menu controls to reset the resolution.