HP Omni Pro 110 Maintenance & Service Manual page 82

Table A-2
Activity
Red Power LED flashes four
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 five
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 six
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
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.
74 Appendix A POST Error Messages
Diagnostic Front Panel LEDs and Audible Codes (continued)
Beeps
4
5
6
7
8
Possible Cause Recommended Action
Power failure (power 1.
supply is overloaded).
2.
3.
4.
Pre-video memory error. CAUTION:
the system board, you must unplug the computer
power cord before attempting to reseat, install, or
remove a DIMM module.
1.
2.
3.
4.
Pre-video graphics error. For systems with a graphics card:
1.
2.
3.
For systems with integrated graphics, replace
the system board.
System board failure Replace the system board.
(ROM detected failure
prior to video).
Invalid ROM based on 1.
bad checksum.
2.
Open the hood and ensure the 4 or 6-wire
power supply cable is seated into the
connector on the system board.
Check if a device is causing the problem by
removing ALL attached devices (such as
hard, diskette, or optical drives, and
expansion cards). Power on the system. If
the system enters the POST, then power off
and replace one device at a time and
repeat this procedure until failure occurs.
Replace the device that is causing the
failure. Continue adding devices one at a
time to ensure all devices are functioning
properly.
Replace the power supply.
Replace the system board.
To avoid damage to the DIMMs or
Reseat DIMMs.
Replace DIMMs one at a time to isolate the
faulty module.
Replace third-party memory with HP
memory.
Replace the system board.
Reseat the graphics card.
Replace the graphics card.
Replace the system board.
Reflash the system ROM with the latest
BIOS image.
Replace the system board.