HP Compaq dc7100 DT - Page 41

Getting Started
Getting Started www.hp.com 37
Red Power LED
flashes five times,
once every
second, followed
by a two second
pause.
5 Pre-video memory
error
1. Reseat DIMMs.
Power on the
system.
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.
Red Power LED
flashes six times,
once every
second, followed
by a two second
pause.
6 Pre-video graphics
error.
For systems with a
graphics card:
1. Reseat the graphics
card. Power on the
system.
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.
7 System board
failure (ROM
detected failure
prior to video).
Replace the system
board.
Diagnostic Front Panel LEDs and Audible Codes
Activity Beeps Possible Cause
Recommended
Action