HP XM600 - Kayak - 128 MB RAM Troubleshooting Manual page 10

Symptom...
If the PC Workstation still does not start
If the problem persists, contact HP Support or your authorized dealer
10
Your PC Workstation Does Not Start Correctly
Case 1 — If There Is No Activity At All
Check that...
There is not a problem with the power
supply unit.
How...
1 Replace the power supply unit by a known working power
supply from the same model of PC.
2 If the PC Workstation starts, contact HP Support or your
authorized dealer. The power supply unit might need
replacing.