Troubleshooting Without Diagnostics

Solving Display Problems (Continued)

Problem

Cause

Solution

 

 

 

 

Blank screen and the

Pre-video memory error.

1.

Reseat DIMMs. Power on the

power LED flashes Red five

 

 

system.

times, once every second,

 

2.

Replace DIMMs one at a time to

followed by a two-second

 

 

 

isolate the faulty module.

pause, and the computer

 

 

 

3.

Replace third-party memory

beeps five times. The beeps

 

 

 

with HP memory.

will repeat five times, but

 

 

 

 

 

the Power LED will continue

 

4.

Replace the system board.

flashing until the problem is

 

 

 

resolved.

 

 

 

 

 

 

Power LED flashes Red six

Pre-video graphics

For systems with a graphics card:

times, once every second,

error.

1.

Reseat the graphics card.

followed by a two second

 

 

2.

Replace the graphics card.

pause, and the computer

 

 

 

 

beeps six times. The beeps

 

3.

Replace the system board.

will repeat five times, but

 

For systems with integrated

the Power LED will continue

 

graphics, replace the system board.

flashing until the problem is

 

 

 

resolved.

Blank screen and the power LED flashes Red seven times, once every second, followed by a two-second pause, and the computer beeps seven times. The beeps will repeat five times, but the Power LED will continue flashing until the problem is resolved.

System board failure

Replace the system board.

(ROM detected failure

 

prior to video).

 

Monitor does not function properly when used with energy saver features.

Monitor without energy

Disable monitor energy saver

saver capabilities is

feature.

being used with energy

 

saver features enabled.

 

Dim characters.

The brightness and

 

contrast controls are not

 

set properly.

Adjust the monitor brightness and contrast controls.

 

Cables are not properly

Check that the graphics cable is

 

connected.

securely connected to the graphics

 

 

card and the monitor.

 

 

 

Blurry video or requested

If the graphics

Install the video drivers included in

resolution cannot be set.

controller was

the upgrade kit.

 

upgraded, the correct

 

 

video drivers may not

 

 

be loaded.

 

 

 

 

 

D–12

361685-001

Service Reference Guide, dx5150