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TROUBLESHOOTING

FAST TRACK TO SOLUTIONS (SYMPTOM TABLE)
SymptomFlowchart or Book SectionSee Page
The power supply is very warm to the touch.Troubleshooting an Overheated Power Supply619
My computer restarts itself, even though I didn't do anything.Troubleshooting a Power Supply That Reboots the Computer622
My computer works well in one room, but if I move it to another room, it crashes frequently.Checking Wall Outlets639
When I plug in a bus-powered USB device, the computer doesn't always recognize it.Troubleshooting an Overloaded Power Supply633
When I plug in an additional drive or add-on card, either the computer can't start or it crashes, but the same device works correctly in another PC.Troubleshooting an Overloaded Power Supply633
My computer locks up frequently.Troubleshooting System Lockups628
I'm not sure if my power supply is putting out the right voltage levels.Troubleshooting System Lockups628
I have a Dell computer that needs a new power supply. How can I tell if it needs a standard or a special Dell model?

Sidebar: Watch Out for the Difference in Older Dells

631
How can I avoid buying a power supply that's too small?Right-Sizing a New Power Supply637
How can I make sure I'm getting a big enough battery backup unit (UPS)?Battery Backup Systems643



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