POST Error Messages

POST Diagnostic Front Panel LEDs and Audible Codes (Continued)

Activity

Beeps Possible Cause

Recommended Action

Red Power LED

6

Pre-video

flashes six times,

 

graphics error.

once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.

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

7

System board

Replace the system board.

flashes seven

 

failure (ROM

 

times, once every

 

detected failure

 

second, followed

 

prior to video).

 

by a two second

 

 

 

pause. Beeps stop

 

 

 

after fifth iteration

 

 

 

but LEDs continue

 

 

 

until problem is

 

 

 

solved.

 

 

 

 

 

 

 

Red Power LED

8

Invalid ROM

1. Reflash the ROM with the latest BIOS

flashes eight times,

 

based on bad

image. See the “Boot Block

once every

 

checksum.

Emergency Recovery Mode” section of

second, followed

 

 

the Desktop Management Guide on

by a two second

 

 

the Documentation and Diagnostics

pause. Beeps stop

 

 

CD.

after fifth iteration

2. Replace the system board.

but LEDs continue

 

until problem is

 

solved.

 

 

 

 

Service Reference Guide, dc7700

433612-001

C–11