HP dx2700 Service Reference Guide: HP Compaq dx2700 MT/dx2708 MT/dx2700 SFF Bu - Page 102

Diagnostic Front Panel LEDs and Audible Codes, Activity, Beeps, Possible Cause, Recommended Action - ram

Get HP dx2700 - Microtower PC PDF manuals and user guides View all HP dx2700 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 102 highlights

Troubleshooting Without Diagnostics Diagnostic Front Panel LEDs and Audible Codes Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. None Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (some models only) or normal Suspend mode. Not support wake up by mouse/keyboard. Should be Press Power button. CPU Fan weak 2 (RPM < 600) or not turning, Display Warning message and Long Beep for 5 sec and shut down. System Fan weak (RPM < 600) or not turning, Display Warning message and Long Beep for 5 sec and shut down. Processor thermal protection activated: A fan may be blocked or not turning. OR The heatsink/fan assembly is not properly attached to the processor. 1. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 2. Open hood, press power button, and see if the processor fan spins. If the processor fan is not spinning, make sure the fan's cable is plugged onto the system board header. Ensure the fan is fully/properly seated or installed. 3. If fan is plugged in and seated properly, but is not spinning, then replace processor fan. 4. Reseat processor heatsink and verify that the fan assembly is properly attached. 5. Contact an authorized reseller or service provider. Red Power LED flashes five times, one every second, followed by a 2 second pause. Also 5 simultaneous beeps will be heard. 5 Pre-video memory 1. Reseat DIMMs. Power on the error. 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. Red Power LED 6 Pre-video graphics For systems with a graphics card: flashes 6 times, one every second, followed by a 2 second pause. Also error. 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 6 simultaneous 3. Replace the system board. beeps will be heard. For systems with integrated graphics, replace the system board. D-22 431672-001 Service Reference 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
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
D–22
431672-001
Service Reference Guide
Troubleshooting Without Diagnostics
Diagnostic Front Panel LEDs and Audible Codes
Diagnostic Front Panel LEDs and Audible Codes
Activity
Beeps
Possible Cause
Recommended Action
Green Power LED
On.
None
Computer on.
None
Green Power LED
flashes every two
seconds.
None
Computer in
Suspend to RAM
mode (some
models only) or
normal Suspend
mode.
Not support wake up by
mouse/keyboard.
Should be Press Power button.
CPU Fan weak
(RPM < 600) or not
turning, Display
Warning message
and Long Beep for
5 sec and shut
down.
System Fan weak
(RPM < 600) or not
turning, Display
Warning message
and Long Beep for
5 sec and shut
down.
2
Processor thermal
protection
activated:
A fan may be
blocked or not
turning.
OR
The heatsink/fan
assembly is not
properly attached
to the processor.
1. Ensure that the computer air vents
are not blocked and the processor
cooling fan is running.
2. Open hood, press power button,
and see if the processor fan spins.
If the processor fan is not
spinning, make sure the fan's
cable is plugged onto the system
board header. Ensure the fan is
fully/properly seated or installed.
3. If fan is plugged in and seated
properly, but is not spinning, then
replace processor fan.
4. Reseat processor heatsink and
verify that the fan assembly is
properly attached.
5. Contact an authorized reseller or
service provider.
Red Power LED
flashes five times,
one every second,
followed by a 2
second pause. Also
5 simultaneous
beeps will be
heard.
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.
Red Power LED
flashes 6 times, one
every second,
followed by a 2
second pause. Also
6 simultaneous
beeps will be
heard.
6
Pre-video graphics
error.
For systems with a graphics card:
1. Reseat the graphics card. Power
on the system.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics,
replace the system board.