New Power Supply and NOTHING!!!

[outlan]

Hi all,

Ok, I inherited an old PC from my buddy. He asked me to salvage some files from his HD and I could have the machine.

I started it up and it worked fine, but realized the power supply fan was not spinning. SO, I went and bought a new 350W power supply and stuck it in. Now--NOTHING. I press the power button and there is power for < 1 second, and then it is dead. I have tried without all the peripherals, PCI cards, video card, etc.-- still nothing. I just can't imagine something would be fried if it was working all this time up until an hour ago.

The only thing I haven't tried is clearing the CMOS. Could this do the trick? The old power supply was a 250W. It is an older ABIT MB and I am unsure of what the processor is. I was thinking maybe the MB got confused by the new power supply?

If anyone has had this kind of problem before, please help me out!!

Thanks

 

[edfair]

Every time I have had this problem it was because I was careless in placing the 3 1/2" floppy power connector one pin off and shorted the supply. Powers up enough to recognize that there is a problem and shuts down with the crowbar.
CMOS clearing would be worthless.
You would have come out cheaper buying a replacement fan.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[Crowley16]

yeah, check you've plugged everything in properly...

whenever I have that problem it's usually because I "forgot" to plug something in or didn't plug it in correctly...

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Procrastinate Now!

 

[outlan]

I tried unplugging all power connectors except for the motherboard and heat sink fan...shouldn't it at least power up and stay on?

 

[Freestone]

Try the old supply again. If it works, your new supply is probably bad.

 

[mudskipper]

I've also had that problem when the switch on the back (110v v.s. 220v) was in the wrong position....

Mudskipper
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Groucho said it best- &quot;A four year-old child could understand this!
Quick! Run out and find me a four year-old child: I can't make heads nor tails out of this!&quot;