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PSU not working with 24 pin connected - Page 2

post #11 of 16
I have no idea how that would be happening...of course, I'm no expert on PSU's.

I think that pins 21-23 are +5VDC and 24 is ground...maybe you just don't have anything in your system that needs these?
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Ichiban
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post #12 of 16
Thread Starter 
if the problem was my mobo would it need to be replace or would it perform fine with the supply from the 20 pins
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post #13 of 16
If the PSU powers up fine after shorting, Then your mobo is poo'ed, probably a VRM has blown?
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post #14 of 16
Thread Starter 
Quote:
Originally Posted by Atomfix View Post
If the PSU powers up fine after shorting, Then your mobo is poo'ed, probably a VRM has blown?
but my question is can i get by using just the 20 pin atx connector for gaming?,as the system works perfect like this
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post #15 of 16
Quote:
Originally Posted by ppkpatrick View Post
but my question is can i get by using just the 20 pin atx connector for gaming?,as the system works perfect like this
Yes
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post #16 of 16
The extra 4 pins are 3 +5v pins and an extra ground. You should have little trouble unless you start pulling a lot of +5v from the board, or run a lot of high power expansion cards like GPUs and start needing that extra ground. Most things are 12v heavy these days, so it's unlikely to matter.
As it will work fine with 20 pin, but not with the 24pin, then there is either a PSU/cabling fault, or a motherboard/mounting problem.
But since it works fine as is, then leave it.
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