Quick PSU 12v/mobo compat. question

[hoppa]

I just picked up an 1155 mobo for my new i5. I'm using an oldish PSU, a Corsair 450w ( http://www.newegg.com/Product/Produc...82E16817139003 ).

The mobo has an 8-pin 12V socket which in the manual is labeled ATX 12v v1

The PSU is, apparently ATX 12v v2.2, and has two 4-pin 12v connectors on the same cable. I previously used only one of them.

My concern is that the mobo socket has connector shapes like such ([] = square, U = U shaped):

[]UU[]
U[][]U

The PSU plugs line up like such:

UU U[]
UU []U

The 4-U plug fits into the 2U/2[] plug, but it makes me nervous.

Am I about to fry my brand new system?

 

[Ken g6]

v2.2 appears to have nothing to do with that plug.

I don't think you're gonna fry it - I had my 450W Corsair's 4-U plug plugged into my mobo's single 2U/2[] socket for years. My guess is the new shape is to prevent just such a thing, as one is supposed to provide more power than the other. But on a single-rail PSU, I don't see how that would matter.

 

[mfenn]

From the picture on Newegg, it looks like there is an 8-pin connector on your PSU.

If not, yes you can use the 4-pin in one side of the 8-pin connector. It should be keyed such that it only fits on one site. The two 4-pins (also known as a 4+4 pin) probably also have a mechanism where they lock together to form an 8-pin.

The only thing that's on those connectors is +12V and ground. If you are really feeling paranoid you can also compare the pinouts to verify the you're plugging it in correctly.

 

[hoppa]

Everything (appears to be) working. Thanks dudes!

 

[mfenn]

No prob.