HP dx2100 HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 80

Activity, Beeps, Possible Cause, Recommended Action, Power LED glows - + ram

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Page 80 highlights

POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes Activity Green Power LED On. Green Power LED flashes every two seconds. Power LED glows on and burns for 3 seconds then is off for 3 seconds. This continues until the issue has been resolved. Power LED flashes five times, once every second, followed by a two second pause. LEDs continue until problem is solved. Power LED flashes six times, once every second, followed by a two second pause. LEDs continue until problem is solved. Power LED flashes seven times, once every second, followed by a two second pause. LEDs continue until problem is solved. Beeps None None None 5 6 7 Possible Cause Computer on. Computer in Suspend to RAM mode (some models only) or normal Suspend mode. Processor thermal protection activated: A fan may be blocked or not turning. OR The heatsink/fan assembly is not properly attached to the processor. Pre-video memory error. Pre-video graphics error. System board failure (ROM detected failure prior to video). Recommended Action None None required. Press any key or move the mouse to wake the computer. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 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. If fan is plugged in and seated properly, but is not spinning, then replace processor fan. Reseat processor heatsink and verify that the fan assembly is properly attached. Contact an authorized reseller or service provider. Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. For systems with a graphics card: Reseat the graphics card. Power on the system. Replace the graphics card. Replace the system board. For systems with integrated graphics, replace the system board. Replace the system board. C-6 404569-001 Service Reference Guide, dx2100 MT

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C–6
404569-001
Service Reference Guide, dx2100 MT
POST Error Messages
POST 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.
None required. Press any key or move the
mouse to wake the computer.
Power LED glows
on and burns for 3
seconds then is off
for 3 seconds. This
continues until the
issue has been
resolved.
None
Processor thermal
protection
activated:
A fan may be
blocked or not
turning.
OR
The heatsink/fan
assembly is not
properly attached
to the processor.
Ensure that the computer air vents are not
blocked and the processor cooling fan is
running.
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.
If fan is plugged in and seated properly,
but is not spinning, then replace processor
fan.
Reseat processor heatsink and verify that
the fan assembly is properly attached.
Contact an authorized reseller or service
provider.
Power LED flashes
five times, once
every second,
followed by a two
second pause.
LEDs continue until
problem is solved.
5
Pre-video memory
error.
Reseat DIMMs. Power on the system.
Replace DIMMs one at a time to isolate
the faulty module.
Replace third-party memory with HP
memory.
Replace the system board.
Power LED flashes
six times, once
every second,
followed by a two
second pause.
LEDs continue until
problem is solved.
6
Pre-video
graphics error.
For systems with a graphics card:
Reseat the graphics card. Power on the
system.
Replace the graphics card.
Replace the system board.
For systems with integrated graphics,
replace the system board.
Power LED flashes
seven times, once
every second,
followed by a two
second pause.
LEDs continue until
problem is solved.
7
System board
failure (ROM
detected failure
prior to video).
Replace the system board.