Contacting Customer Support - HP dx2810 - Microtower PC Service & Reference Manual

Table C-1 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity
Red Power LED flashes
eight times, once every
second, followed by a
two second pause.
Beeps stop after fifth
iteration but LEDs
continue until problem is
solved.
System does not power
on and LEDs are not
flashing.

Contacting Customer Support

For help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near you,
visit http://www.hp.com.
NOTE: If you take the computer to an authorized reseller, dealer, or service provider for service,
remember to provide the setup and power-on passwords if they are set.
Refer to the number listed in the warranty or in the Support Telephone Numbers guide for technical
assistance.
Beeps Possible Cause
8 System board failure
or invalid ROM
based on bad
checksum.
None System unable to
power on.
Recommended Action
1. Reflash the system ROM with the
latest BIOS image.
2. Replace the system board.
Press and hold the power button for less
than 4 seconds. If the hard drive LED
turns green, the power button is working
correctly. Try the following:
1. Check that the voltage selector
(some models), located on the rear
of the power supply, is set to the
appropriate voltage. Proper voltage
setting depends on your region.
2. Replace the system board.
OR
Press and hold the power button for less
than 4 seconds. If the hard drive LED
does not turn on green then:
1. Check that the unit is plugged into a
working AC outlet.
2. Open hood and check that the
power button harness is properly
connected to the system board.
3. Check that both power supply
cables are properly connected to
the system board.
Contacting Customer Support 145