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PC Wont Start With 12v Pin & CPU

Last response: in Systems
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CPUs Expert

Alright so this is a really crap PC that I've had for a while. It's only a spare one which I use for diagnostics , I've just bought a new socket 775 Intel Pentium processor , it's used but in working condition. For some reason when the CPU is fitted in and I put the 4pin 12V into the motherboard the system starts then dies. But if I run the system without the 12V then it works fine , and if I put the 12V in and no CPU then it works fine. So not sure what's wrong? I tried the original power supply that came with this board and it gives the same problems, any solutions?

More about : wont start 12v pin cpu

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Anonymous
Homebuilt system Authority
CPUs Master

i thought you might have bought a new cpu because the old one had problems(?)

though if the difference is when you plug in the ATX12V i would first look for any possible bulging capacitor on the board or brown are around the VRMs while looking at the PCB from underneath.
CPUs Expert

Anonymous said:
i thought you might have bought a new cpu because the old one had problems(?)

though if the difference is when you plug in the ATX12V i would first look for any possible bulging capacitor on the board or brown are around the VRMs while looking at the PCB from underneath.


I sold my previous CPU to a friend & bought this CPU just cause the board was lying around. And yeah will do
thanks
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