HP MultiSeat ms6000 Maintenance And Service Manual page 112

Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
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.
104 Appendix C POST Error Messages
Beeps Possible Cause
4 Power failure (power
supply is overloaded).
5 Pre-video memory error.
6 Pre-video graphics error.
7 System board failure
(ROM detected failure
prior to video).
8 Invalid ROM based on
bad checksum.
Recommended Action
1. Open the hood and ensure the 4 or 6-wire
power supply cable is seated into the
connector on the system board.
2. Check if a device is causing the problem by
removing ALL attached devices (such as
hard 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.
3. Replace the power supply.
4. Replace the system board.
CAUTION: To avoid damage to the DIMMs or
the system board, you must unplug the computer
power cord before attempting to reseat, install, or
remove a DIMM module.
1. Reseat DIMMs.
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.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics, replace
the system board.
Replace the system board.
1. Reflash the system ROM with the latest
BIOS image. See the "Boot Block
Emergency Recovery Mode" section of the
Desktop Management Guide for more
information.
2. Replace the system board.