Mobo or CPU dead?

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chickfula1

Commendable
Aug 9, 2016
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My computer will not start whatsoever. I did the paperclip test with the PSU and the PSU worked but interestingly enough the CPU fan also ran, connected to the mobo (but not the case fans). Does that mean my motherboard is working? What is possibly making my computer not start? Could it be the CPU? But I doubt that would affect the start up right?
 
Solution
geofelt
It seems unlikely that a new psu would be faulty in the same way.
To diagnose the problem, It would probably be best to take it to a shop where they have parts to exchange and diagnose the problem.
It is unlikely that you or your friends would have sufficient compatible parts to do this.
If you just buy replacements, you are just guessing..
At this point, my guess would be the motherboard.
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greens

greens

Splendid
Jan 27, 2012
3,773
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PSU is probably bad.

Paperclip test doesn't prove a single thing, i'm not sure why it is ever recommended.
All it does is put you in danger.

A car can start but if it can't move i wouldn't consider it working, would you?

Replace the PSU. Motherboards and CPUs are extremely robust and rarely die on their own.

 
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chickfula1

Commendable
Aug 9, 2016
6
0
1,520


To put it simple my house had a power outage in a thunderstorm and I was using my computer (Yes I know it's stupid). After the outage, I try to boot up my computer but it simply wouldn't start. I knew pretty well that it would probably be my PSU, considering that it was a relatively cheap brand. Thus I bought a new PSU and reconnected my full system and it still does not start. I did the paperclip test on the new PSU, and it "worked" but my CPU fan on my mobo also ran to. I am probably going to also test my old PSU to confirm if it is truly dead.

 
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chickfula1

Commendable
Aug 9, 2016
6
0
1,520

I understand your point, but I replaced my "damaged "PSU with this
and did the paperclip test on the brand new one after a power outage.

 
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geofelt

geofelt

Titan
Oct 9, 2006
54,374
4,185
174,240
It seems unlikely that a new psu would be faulty in the same way.
To diagnose the problem, It would probably be best to take it to a shop where they have parts to exchange and diagnose the problem.
It is unlikely that you or your friends would have sufficient compatible parts to do this.
If you just buy replacements, you are just guessing..
At this point, my guess would be the motherboard.
 
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