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I'm having an issue using a motherboard I bought recently and a pre-existing power supply. I'm using a Gigabyte Z97X-Gaming 3 Intel Z97 (Socket 1150) DDR3 ATX Motherboard and a Corsair GS 600 as my power supply. I'm relatively new to computer building so I'm sure I'm doing something stupid.

I seem to notice each of them have a slightly different configuration. I seem to notice in each certain holes are square and certain holes are sort of more narrower at one end then the other. I'd post images but I don't have enough reputation. I'm talking about the cable shown on this page: http://www.overclock.net/t/1239449/seasonic-x660-gold-issue-with-12v-connector

Just wonder if this is something anyone has come across?

Thanks

Lucas
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2 Answers2

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A PSU for your computer must fit your mainboard. According to the documentation on your MB you have to connect this ATX_12V connector. Otherwise the computer will not start.

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Ruslan Gerasimov
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PCI-E / EPS-12V Pinout

Here's an image of the pin outs. I'm assuming you're looking at the bottom one - which is for GPUs.

The top pin out is what should be plugged into the motherboard.

Alternatively if the PSU is a lower specced or older PSU, it may just have a 4 pin ATX (12V2 DC connector in the diagram) plug rather than an 8 pin EPS-12V plug. The old ATX 12V plug corresponds to half of the EPS-12V plug - the left half of the top pinout.

Old 4pin pintout

Lawrence
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