HP Dc5000 Troubleshooting Guide - Page 71

Activity, Beeps, Possible Cause, Recommended Action, Reseat DIMMs. Power on

Get HP Dc5000 - Compaq Business Desktop PDF manuals and user guides
UPC - 829160313740
View all HP Dc5000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 71 highlights

POST Error Messages Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes once every two seconds. OR Red Power LED flashes four times, once every second, followed by a two second pause. None Power failure (power supply is overloaded). 1. Check that the voltage selector, located on the rear of the power supply, is set to the appropriate voltage. Proper voltage setting depends on your region. 2. Open the hood and ensure the 4-wire power supply cable is seated into the connector on the system board. 3. Check if a device is causing the problem by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards). Power on the system. If the system enters the POST, then power off and replace one device at a time and repeat this procedure until failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure all devices are functioning properly. 4. Replace the power supply. 5. Replace the system board. Red Power LED 5 flashes five times, once every second, followed by a two second pause. Pre-video memory error 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. A-14 www.hp.com Troubleshooting Guide

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
A–14
www.hp.com
Troubleshooting Guide
POST Error Messages
Red Power LED
flashes once
every two
seconds.
OR
Red Power LED
flashes four
times, once
every second,
followed by a
two second
pause.
None
Power failure
(power supply is
overloaded).
1. Check that the voltage selector,
located on the rear of the power
supply, is set to the appropriate
voltage. Proper voltage setting
depends on your region.
2. Open the hood and ensure the
4-wire power supply cable is
seated into the connector on the
system board.
3. Check if a device is causing the
problem by removing ALL attached
devices (such as hard, diskette, or
optical drives, and expansion
cards). Power on the system. If the
system enters the POST, then power
off and replace one device at a
time and repeat this procedure until
failure occurs. Replace the device
that is causing the failure. Continue
adding devices one at a time to
ensure all devices are functioning
properly.
4. Replace the power supply.
5. Replace the system board.
Red Power LED
flashes five
times, once
every second,
followed by a
two second
pause.
5
Pre-video memory
error
1. Reseat DIMMs. Power on the
system.
2. Replace DIMMs one at a time to
isolate the faulty module.
3. Replace third-party memory with
HP memory.
4. Replace the system board.
Diagnostic Front Panel LEDs and Audible Codes
(Continued)
Activity
Beeps
Possible Cause
Recommended Action