C–10
437963-001
Service Reference Guide, dc5750
POST Error Messages
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.
6
Pre-video
graphics error.
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.
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.
7
System board
failure (ROM
detected failure
prior to video).
Replace the system board.
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.
8
Invalid ROM
based on bad
checksum.
1. Reflash the ROM with the latest BIOS
image. See the “Boot Block
Emergency Recovery Mode” section of
the
Desktop Management Guide
on
the
Documentation and Diagnostics
CD.
2. Replace the system board.
POST Diagnostic Front Panel LEDs and Audible Codes
(Continued)
Activity
Beeps
Possible Cause
Recommended Action
