Diagnostic Front Panel Leds And Audible Codes - HP COMPAQ DX2710 MT Service & Reference Manual

Troubleshooting Without Diagnostics

Diagnostic Front Panel LEDs and Audible Codes

Diagnostic Front Panel LEDs and Audible Codes
Activity
Green Power LED
On.
Green Power LED
flashes every two
seconds.
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.
Red Power LED
flashes five times,
one every second,
followed by a 2
second pause. Also
5 simultaneous
beeps will be
heard.
Red Power LED
flashes 6 times, one
every second,
followed by a 2
second pause. Also
6 simultaneous
beeps will be
heard.
D–22
Beeps Possible Cause
None Computer on.
None Computer in
Suspend to RAM
mode (some
models only) or
normal Suspend
mode.
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.
5 Pre-video memory
error.
6 Pre-video graphics
error.
483941-001
Recommended Action
None
Not support wake up by mouse/
keyboard.
Should be Press Power button.
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.
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.
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.
Service Reference Guide