Troubleshooting Without Diagnostics

Solving Hardware Installation Problems (Continued)

Problem

Cause

Solution

Computer will not start.

Wrong memory

 

modules were used in

 

the upgrade or memory

 

modules were installed

 

in the wrong location.

1.Review the documentation that came with the system to determine if you are using the correct memory modules and to verify the proper installation.

 

 

✎ DIMM 1 must always be

 

 

 

installed.

 

 

2.

Observe the beeps and LED

 

 

 

lights on the front of the

 

 

 

computer. See Appendix C

 

 

 

“POST Error Messages” to

 

 

 

determine possible causes.

 

 

 

Power LED flashes Red five

Memory is installed

Ä To avoid damage to the

times, once every second,

incorrectly or is bad.

 

DIMMs or the system board,

followed by a two second

 

 

you must unplug the computer

 

 

power cord before attempting

pause, and the computer

 

 

to reseat, install, or remove a

beeps five times. Beeps

 

 

DIMM module.

continue for five iterations

 

1.

Reseat DIMMs. Power on the

after which the LED flashes

 

 

system.

will continue until the

 

2.

Replace DIMMs one at a time to

problem is resolved.

 

 

isolate the faulty module.

 

 

✎ DIMM 1 must always be

 

 

 

installed.

 

 

3.

Replace third-party memory

 

 

 

with HP memory.

 

 

4.

Replace the system board.

 

 

 

Power LED flashes Red six

Graphics card is not

For systems with a graphics card:

times, once every second,

seated properly or is

1.

Reseat the graphics card. Power

followed by a two second

bad, or system board is

 

on the system.

pause, and the computer

bad.

 

2.

Replace the graphics card.

beeps six times. Beeps

 

 

3.

Replace the system board.

continue for five iterations

 

after which the LED flashes

 

For systems with integrated

will continue until the

 

graphics, replace the system board.

problem is resolved.

 

 

 

 

 

 

 

Power LED flashes Red ten

Bad option card.

1.

Check each option card by

times, once every second,

 

 

removing the cards one at time

followed by a two second

 

 

(if multiple cards), then power

pause, and the computer

 

 

on the system to see if fault goes

beeps ten times. Beeps

 

 

away.

continue for five iterations

 

2.

Once bad card is identified,

after which the LED flashes

 

 

 

remove and replace bad option

will continue until the

 

 

 

 

card.

problem is resolved

 

 

 

3.

Replace the system board.

 

 

 

 

 

 

 

Service Reference Guide, dx7300

433611-001

D–23