CPU randomly shuts down

Gateway / Sx2802-07
January 25, 2010 at 01:05:48
Specs: Windows 7
Hi, I bought a Gateway desktop roughly a month ago, and it has been working great up until today. This afternoon, it suddenly shut down and would not power on at all. I checked the temperature and it didn't feel hot at all, so I doubt it was caused by overheating, but I could be wrong. The computer was "dead" for about eleven hours, although the connected modem for some reason registered "pc activity" throughout the 11 hours (I know the modem works because I connected it to my shut-down laptop and the "pc activity" light stopped flashing) However, after 11 hours, the computer suddenly powered on by itself, and seemed to work just fine again. That is, for an hour and a half, when it suddenly shut down again. Again, this time I could not get the cpu to power on, yet it automatically turned on after about half an hour. I'm leaning towards this being a bad power supply problem, since I read that a bad PSU may cause the audio to crack, and the
audio does crack after the PC has been on for a while, but the speakers themselves may be over ten years old too. I'm hoping it is not a virus. Any help will be greatly appreciated. Thanks

Gateway SX2802-07
Windows 7 Home Premium
6GB DDR2 RAM


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#1
January 25, 2010 at 09:13:01
Various possibilities but it would be worth eliminating these old standards from the equation before you go any further:

1. Clean dust from all airways, fans and CPU heatsink.

2. After the dust has settled remove RAM sticks and clean edge connectors with pencil eraser. Pop the sticks in and out a few times to ensure there is no oxide on the connector itself. You could do the same to any other edge connectors too (particularly any add-on video or sound cards).

3. Finally ensure all connections are firmly seated.

See what happens after that.

some other bloke...


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#2
January 27, 2010 at 17:15:35
For some reason, the computer is working fine now, which is
kind of weird, because now that i think about it, this has
happened to all my other computers once too. Maybe it's just a
one-time deal. But anyways, it's working fine now, so I won't
mess with it unless it starts whacking out again. Thanks for the
help though!

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#3
January 27, 2010 at 18:42:39
All the best faults go away by themselves LOL. Good luck.

some other bloke...


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