HP Compaq 6005 Pro Maintenance And Service Manual page 144

Table F-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity
Red Power LED flashes
seven times, once every
second, followed by a two
second pause. Beeps stop
after fifth iteration but LEDs
continue until problem is
solved.
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.
Red Power LED flashes nine
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue
until problem is solved.
134 Appendix F POST Error Messages
Beeps Possible Cause
7 System board failure
(ROM detected failure
prior to video).
8 Invalid ROM based on
bad checksum.
9 System powers on but is
unable to boot.
Recommended Action
Replace the system board.
1. Reflash the system ROM with the latest
BIOS image.
2. Replace the system board.
1. Check that the voltage selector, located on
the rear of the power supply (some
models), is set to the appropriate voltage.
Proper voltage setting depends on your
region.
2. Unplug the AC power cord from the
computer, wait 30 seconds, then plug the
power cord back in to the computer.
3. Replace the system board.
4. Replace the processor.