troubleshooting Question

Motherboard/CPU blown? PC wont start anymore

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BD20001 asked on
HardwareComponents
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I have recently put together a new computer and for the last week it has been running fine, but last night it shut off suddenly and it wont turn on anymore.

The system is a:

- GA K8NSC S939  Motherboard
- AMD Athlon 3200+ S939
- 512MB Kingston DDR RAM
- Western Digital 160GB SATA HDD

LAst night i had just plugged in the front USB ports into the motherboard and inserted a DVD burner as well. when i booted up the computer i had opened Nero and plugged in the USB key via the front ports. the USB device had been recognised but then nothing happened after that. I had then placed a blank DVD into my burner and then the entire system just shut off about 15-20 after that...

Now the system will not turn on anymore. I have swapped the power supply over and tried another one and it didnt start. I used the P/S from the pc in another computer and started fine. So the power supply was not the problem.

I swapped the RAM and HDD and removed the DVD from the m/b and still no responce.

I cant smell anything burnt but i have a feeling that the Motherboard might have blown or the CPU...I can figure out which one...ANd if they have blown how did it happen.....

I thought maybe the USB key might have short circuited the m/b due to an improper pin configuration but i double chedcked the USB pins and they were in correct. The p/s in the case that i was using is only about 5months old and not really used that much. I bought it as a spare case, but i am weiry that it might have been the p/s.

Input would be greatly appreciated

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