Difference between two four pin 12v ATX on my PSU

[McGraw]

Hi.

I have a Silvertsone 450w SFX PSU. It has an 8 pin 12v ATX connector split in two. Both are identically wired but one has a slightly different shape in the "foolproof" design.

My motherboard has a single 12v ATX socket and I am trying to isolate a problem with my PSU.

One of the 4 pins matches the socket exactly, the other one doesn't but I can see that it will fit.

My question is, is it safe to test my pc using the other half of the 8 pin ATX 12v socket? Are they exactly the same?

Thanks a lot.

 

[McGraw]

I've found out now. It's a single rail 2x4pin ATX / 8pin EPS.

Both connectors are different ends of the same wire/rail.