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Pc shuts down almost immediately after starting with anew PS

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March 25, 2012 11:36:05 AM

This my mom's PC so its really important that I perform a miracle.
ASUS P5ND2 SLI Series
Maxtor diamondmax 21 200g
Kingston 512
Antex 500 case
Windows XP Pro
OCZ700MSSP power supply
Intel Q9550

You hit the start up button and the pc starts and stops almost immediately.
The power supply is new so I'm thinking the Intel is dead.
Am I going in the right direction, my knowledge in PC hardware problems has reached its max and I'm guessing now.
Thanks
Donn

More about : shuts immediately starting anew

March 25, 2012 1:13:59 PM

Thanks I'll give a shot
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March 25, 2012 1:17:22 PM

If the computer was working before the new PSU then it is most likely the PSU. If the puter wasn't it may be the mobo, the CPU, the RAM, or even a short in the case. First make sure that the PSU is properly connected to the mobo. Probably needs the 24 pin connector plus an 8 pin supplemental connector. Then you have to breadboard thee other components, i.e. put in minimum components (CPU, GPU, 1 stick of RAM, boot drive, etc.) to see if you can get a boot. Swapo out components with other components that you think are good. That is the method used by most system builders.
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March 25, 2012 2:05:04 PM

Your not giving us enough information. Did it not work with the old psu?

Why did you replace the psu?
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March 25, 2012 7:47:26 PM

geekapproved said:
Your not giving us enough information. Did it not work with the old psu?

Why did you replace the psu?


I would not turn on with the old PSU which is why I bought a new one, in hindsight I dont think I needed a new PSU. I breadboarded the system, I jumped the 24 pin connector, pin # 16 with a black wire. The system came alive and I was told, won"t mention who in case its wrong, that the MOB was bad. So, I went out and bought a Asus P5G41T-M LX Plus for $39.96 and some DDR3 for $24.99. Not the top of the line, but it will have to suffice for now. Tell me that the money spent was not wasted, at least until I have gotten the PC back together.

I await your response!
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March 25, 2012 8:28:30 PM

well at least you wont need to worry about the psu for a while
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March 26, 2012 4:03:33 PM

If the cpu was dead, it wouldn't start in the first place.

Most likely reason a computer would shut down immediately is if the cpu was overheating.

Either way, your parts are so old, it could be anything really.

You should start thinking about building a new computer.
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