Compaq D51s Troubleshooting Guide - Page 17

Solving General Problems, Problem, Cause, Solution - power supply

Get Compaq D51s - Evo Desktop PC PDF manuals and user guides
UPC - 890552632367
View all Compaq D51s manuals
Add to My Manuals
Save this manual to your list of manuals

Page 17 highlights

Troubleshooting Without Diagnostics Solving General Problems You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact your Compaq authorized dealer or reseller. Solving General Problems Problem Computer won't turn on. Computer appears locked up and won't turn off when the power button is pressed. Cause Computer is not connected to an external power source. Cables to the external power source are unplugged. A defective PCI card has been installed. Drive power, data, or power supply cables may not be properly connected. Power line selector switch on rear of computer chassis not switched to correct line voltage (115V or 230V) (some models). Software control of the power switch is not functional. Solution Connect to an external power source. Ensure that cables connecting the computer to the external power source are plugged in properly and the wall outlet is active. Remove any expansion board that was just installed. Reseat drive power, data, and power supply cables. Select the proper AC voltage using the slide switch. Press and hold the power button for at least 4 seconds until the computer turns off. Troubleshooting Guide 2-3

  • 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
Troubleshooting Guide
2–3
Troubleshooting Without Diagnostics
Solving General Problems
You may be able to easily resolve the general problems described in
this section. If a problem persists and you are unable to resolve it
yourself or if you feel uncomfortable about performing the operation,
contact your Compaq authorized dealer or reseller.
Solving General Problems
Problem
Cause
Solution
Computer won’t
turn on.
Computer is not
connected to an external
power source.
Connect to an external power
source.
Cables to the external
power source are
unplugged.
Ensure that cables connecting the
computer to the external power
source are plugged in properly and
the wall outlet is active.
A defective PCI card has
been installed.
Remove any expansion board that
was just installed.
Drive power, data, or
power supply cables
may not be properly
connected.
Reseat drive power, data, and power
supply cables.
Power line selector
switch on rear of
computer chassis not
switched to correct line
voltage (115V or 230V)
(some models).
Select the proper AC voltage using
the slide switch.
Computer appears
locked up and won’t
turn off when the
power button is
pressed.
Software control of the
power switch is not
functional.
Press and hold the power button for
at least 4 seconds until the computer
turns off.