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Is the Corsair CX600 PSU ATX12V compatible?

Last response: in Motherboards
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December 17, 2011 5:05:06 PM

Disclaimer: I have not built my own PC in many years. This may be dumb question.

Here is my question:

Is a EPS12V connector on a PSU backward compatible witha ATX12V connector on my motherboard?

Here are the details:

I bought a Corsair CX600 PSU from Newegg as listed here:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And a ASRock 970 EXTREME3 mother board as listed here:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

On Newegg's details section for the PSU you can see the PSU connectors are listed as:

1 x Main connector (20+4Pin)
1 x 4+4 Pin ATX 12V
1 x EPS 12V

2 x PCI-E
6 x SATA
4 x Peripheral
1 x Floppy

Well, I just opened the box and only see one 8 pin connector. I don't see a 4+4 Pin ATX 12V connector.

Looking at the Corsair manual (http://www.corsair.com/media/cms/manual/CX_English.pdf) on Page 7, I don't see any mention of a 4x4 Pin ATX 12V connector. Here is the list of connectors from the manual:

1 ATX Cable (24-pin)
1 EPS12V CPU Cable (8-pin)
2 PCI-E Cable
6 SATA Cable
5 Peripherial Cable (includes Floppy)

The 8 pin connecter (EPS12V?) from the PSU does fit in the ATX 12V connector on the motherboard. Will this work? Is a EPS12V connector backward compatible with a ATX12V connector? Am I going to fry my MB if I turn this on?

Thanks!
a b V Motherboard
December 17, 2011 5:22:29 PM

Yes you will fry your mobo if you turn it on with the 8-pin into the ATX12v 24-pin connector.

The EPS12V goes into the "Cpu power" connector on the mobo, and the 24-pin goes into the only 24-pin that there is. It's pretty foolproof really.
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a b V Motherboard
December 17, 2011 5:31:27 PM

kjhealey said:
Disclaimer: I have not built my own PC in many years. This may be dumb question.

Here is my question:

Is a EPS12V connector on a PSU backward compatible witha ATX12V connector on my motherboard?

Here are the details:

I bought a Corsair CX600 PSU from Newegg as listed here:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And a ASRock 970 EXTREME3 mother board as listed here:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

On Newegg's details section for the PSU you can see the PSU connectors are listed as:

1 x Main connector (20+4Pin)
1 x 4+4 Pin ATX 12V
1 x EPS 12V

2 x PCI-E
6 x SATA
4 x Peripheral
1 x Floppy

Well, I just opened the box and only see one 8 pin connector. I don't see a 4+4 Pin ATX 12V connector.

Looking at the Corsair manual (http://www.corsair.com/media/cms/manual/CX_English.pdf) on Page 7, I don't see any mention of a 4x4 Pin ATX 12V connector. Here is the list of connectors from the manual:

1 ATX Cable (24-pin)
1 EPS12V CPU Cable (8-pin)
2 PCI-E Cable
6 SATA Cable
5 Peripherial Cable (includes Floppy)

The 8 pin connecter (EPS12V?) from the PSU does fit in the ATX 12V connector on the motherboard. Will this work? Is a EPS12V connector backward compatible with a ATX12V connector? Am I going to fry my MB if I turn this on?

Thanks!

The ATX12v connector on the board has 8 pins ?
That makes it an EPS12v connector
When you opened the box and saw the 8 pin connector, you were also looking at the 4+4.
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December 17, 2011 5:36:57 PM

Thanks for the replies. The motherboard documentation labels the 8 pin connector as "8-pin ATX12V. "The PSU labels the 8 pin connector as "EPS12V". So these are the same thing (EPS12V = ATX12V?)

By the way, I am NOT plugging the 8 pin connector from the PSU into the 24 pin connector on the MB.

Again, sorry if this is a dumb question, but I just want to be absolutely sure that I'm not going to fry anything.

Thanks again!
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Best solution

a b V Motherboard
December 17, 2011 5:47:30 PM

Sorry about the misunderstanding.

It must be a typo from Asrock then, they're reffering to the 8-pin CPU power connector and that is a EPS12V connector, just plug it where it should and you're good to go.


Look up this thread: http://www.tomshardware.com/forum/247828-28-what-eps12v

From cnumartyr:
"So.. short and simple..

ATX12V - 4 Pin CPU Connector
EPS12V - 8 Pin CPU Connector

You can get an EPS12V/ATX12V PSU and it will be fine on a regular ATX12V motherboard. Most of the newer highend mobos do have EPS12V connector which means more stable and "cleaner" power. You just use whichever cable you need... the PSU has both."
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December 17, 2011 6:27:28 PM

Best answer selected by kjhealey.
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