Thermal Unit Failure

If the Thermal Unit fails, perform the following actions one at a time to correct the problem. Do not replace non-defective FRUs:

START

 

 

 

 

 

 

 

 

Fan power

 

 

 

 

 

 

 

 

 

 

 

 

wire well

 

No

 

 

Connect it well

 

 

connected?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan OK?

No

Replace thermal

module

CPU

heatsink well No seated?

Seat it well

CPU OK?

No

Replace M/B

Replace

CPU

External Mouse Failure

If an external Mouse fails, perform the following actions one at a time to correct the problem.

1.Try an alternative mouse.

2.If the mouse uses a wireless connection, insert new batteries and confirm there is a good connection. See the mouse user manual.

3.If the mouse uses a USB connection, try an alternate USB port.

4.Try an alternative program to verify mouse operation. Reinstall the program experiencing mouse failure.

Chapter 4

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Packard Bell LJ75, LJ77 manual Thermal Unit Failure, External Mouse Failure