Question Did I fry my mobo?

Aug 3, 2021
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Hello. I wrongly connected 2x CPU 4 pin atx to Dell proprietory 8 pin mobo power socket. After that, only fans are spinning, no display and no response from the pc. Belatedly, I know I should have used 24 to 8 pin adaptor. What damage could that have caused?
 

Lutfij

Titan
Moderator
Welcome to the forums, newcomer!

A dead motherboard, perhaps. What is the exact model for your PSU and the motherboard? You might need to source a PSU that works with the motherboard in order to verify if you've fried it. I'm leaning on the board being dead altogether, if not, the PSU, if not both.
 
Aug 3, 2021
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PSU: beQuiet S9-CM-700W. Mobo don't know (Dell model: Optiplex 9020 MT). Same symptoms with original Dell PSU, so I think you're right, mobo is fried. The PSU seems to work fine, though.
 

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