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Old 02-26-2008, 06:32 PM   #1
MiniDev
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Compaq Presario 2100 desktop PC mysteriously died


My computer mysteriously died this morning when I pushed the power button! No noise, no light, no display, nothing! It's plugged in, all the interior connectors are okay, but the thing won't start. As far as I know, all the parts are good. I'm thinking it's a short in the power switch, maybe it burned out. How do I test the power switch and/or power supply to see which one is the problem? If it's the power switch (button on front of case), then how do I bypass/override it to start the computer? I haven't been able to find anything helpful on the net and I need the computer for a tourny this weekend (Unreal Tournament GOTY through Wine), so a speedy reply would be great. Thanks in advance

Minidev
 
Old 02-27-2008, 10:52 AM   #2
Emerson
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Power switch does nothing but shorts two pins for a moment in an ATX motherboard. You can disconnect the wire, connect reset switch wire there instead and use reset button as power button.
 
Old 02-27-2008, 11:13 AM   #3
MiniDev
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Thanks for the idea, except it doesn't have a reset button. However, on the inside of the case, I see more then two wires going to the power button, so I guess I could disconnect all three, plug it in, and see if sparks fly when I touch two of them together. It's so strange, the computer ran very well and didn't show any signs of a potential failure. Now it just doesn't turn on.
 
Old 02-27-2008, 11:33 AM   #4
Emerson
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More than two wires? Two are needed to switch power, maybe there is some illumination built into that button?
 
Old 02-29-2008, 02:38 PM   #5
MiniDev
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Yeah, 6 actually. 2 for the power button, 2 for the ON light, and 2 for the HD light. I also have some new information. It appear that the power strip has shorted out, meaning the board might possibly be fried. I don't know where to look for scorch marks though. Another idea would to check the power supply. I don't suppose anyone here knows how to take apart a power supply and check for damage?
 
  


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