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Telling IT Straight
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PC won't power upViews: 572
Jan 02, 2010 9:39 amPC won't power up#

Ron Sam
My old desktop won't start. Mobo is (2002) MSI K7T266 pro2 AMD Athlon XP Palamino 1800+.

Thought it was a p/s because it had an exploded resistor and a cap that also blew top off and ribbons of foil tape were showing. I replaced the 320 wt PSU with a 550wt unit.

Still no power.
Momentary ON switch tested - good.
All power connections - good.

Read that if cpu fan is open, power will not turn on. Fan was changed. Still no power.

Is the next failed component to suspect the Athlon XP chip?

Do all mobo's have some sort of power indicator led? I don't see one.

Private Reply to Ron Sam

Jan 02, 2010 4:09 pmre: PC won't power up#

Scott Wolpow
Look at MB for fine powder around CPU. If found, then MB is fried. If not MB is most likely fired.

Private Reply to Scott Wolpow

Jan 02, 2010 7:08 pmre: re: PC won't power up#

Ron Sam
From your statement, it sounds like mobo is fried either way?

what is powder from? toxic?

How do you tell if CPU or Mobo or both is bad?

Private Reply to Ron Sam

Jan 02, 2010 8:27 pmre: re: re: PC won't power up#

Scott Wolpow
The powder is the silicon burnt. Not toxic.

You need just to hook it up, make sure you have all the jumpers set, including the power on. If it beeps, it is getting power.

Private Reply to Scott Wolpow

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