This is my problem as well with the corsair power supply, somehow I am missing what happened, because I have NO 4 pin connecto

[KnitePrince]

4 pin connector on mother board but no 4 pin on the PSU Only the 6 plus 2 pin connector that comes off of the 8 pin that plugs into the PSU...

 

[GhislainG]

You also have an 8 pin (4 + 4) CPU ATX cable that can be split in two 4 pin cables. One fits your motherboard.

 

[KnitePrince]

If I did I wouldnt be here asking this question.. can I plug the cable in backwards using the six pin+2 in the power supply and plug in HALF of the 8 pin to the motherboard? the 8 pin does NOT split in half, it is one piece. There is NO cable connector that splits.

 

[GhislainG]

What exact PSU do you have? It would have to be very old not to have an ATX CPU cable.

 

[KnitePrince]

Corsair CX750M, Brand new.
I guess the 6 pin connectors have the extra two pins so technically they split from 8 to 6, but nothing splits from 8 or 6 to 4.

 

[GhislainG]

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139051 Look at the pictures where the 24 pin cable and the CPU ATX cables are visible. Just like the 24 pin cable, the CPU ATX cable is not modular since all systems need it. If you closely look at the 8 pin cable, you'll see that it can be separated into two 4 pin connectors (a bit hard to do, but you can do it).

 

[Calvin7]

1 x 24pin main connector
1 x 8pin EPS12V CPU connector

The 4+4 connector is an 8pin EPS12V that can be broken in half to work with a motherboard that uses a 4-pin connector for power.

 

[Eckaji]

The 6+2pin is not your CPU cable, that is a PCI Express Cable. The CPU cable is an 8pin cable and it is 1 of the 2 cables coming directly from your PSU. The problem is that this PSU is not compatible with your older 4pin motherboard as it is not a "4+4" cable, but an "8pin" cable.

You will need a cable like this http://www.newegg.com/Product/Product.aspx?Item=N82E16812423185&cm_re=4_pin_Molex_LP4_to_ATX_12V_P4_4-Pin-_-12-423-185-_-Product for this PSU to work with your motherboard. I would check the content of the box again to make sure this was not included.

I hope I have helped you with your problem.

 

[GhislainG]

The 6+2pin is not your CPU cable, that is a PCI Express Cable. The CPU cable is an 8pin cable and it is 1 of the 2 cables coming directly from your PSU. The problem is that this PSU is not compatible with your older 4pin motherboard as it is not a "4+4" cable, but an "8pin" cable.

You will need a cable like this http://www.newegg.com/Product/Product.aspx?Item=N82E16812423185&cm_re=4_pin_Molex_LP4_to_ATX_12V_P4_4-Pin-_-12-423-185-_-Product for this PSU to work with your motherboard.

I hope I have helped you with your problem.

He doesn't need that cable; the required CPU ATX cable already is included with the PSU.

 

[Eckaji]

The 6+2pin is not your CPU cable, that is a PCI Express Cable. The CPU cable is an 8pin cable and it is 1 of the 2 cables coming directly from your PSU. The problem is that this PSU is not compatible with your older 4pin motherboard as it is not a "4+4" cable, but an "8pin" cable.

You will need a cable like this http://www.newegg.com/Product/Product.aspx?Item=N82E16812423185&cm_re=4_pin_Molex_LP4_to_ATX_12V_P4_4-Pin-_-12-423-185-_-Product for this PSU to work with your motherboard.

I hope I have helped you with your problem.

He doesn't need that cable; the required CPU ATX cable already is included with the PSU.

Not according to the product details. http://www.newegg.com/Product/Product.aspx?Item=N82E16817139051

1 x 24pin main connector
"1 x 8pin EPS12V CPU"
4 x PCI-E
8 x SATA
6 x Peripheral
2 x Floppy

I suppose he can check the "Peripheral" ones for the connection as one of those is what will be used to power the motherboard if he buys that adapter. I would also advise he check the contents again to make sure an adapter was not provided.

This is not a "4+4pin" 8pin cable and he needs a "4pin" for his motherboard.

 

[GhislainG]

Eckaji, this review http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=416 describes it properly (4+4 pin EPS/ATX12V). The manual contains this info: "If your motherboard has a four-pin socket, detach the four-pin from the eight-pin cable, and then plug this four-pin cable directly to your motherboard." I bought a CX550M which has the same EPS cable.

 

[Eckaji]

Eckaji, this review http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=416 describes it properly (4+4 pin EPS/ATX12V). The manual contains this info: "If your motherboard has a four-pin socket, detach the four-pin from the eight-pin cable, and then plug this four-pin cable directly to your motherboard." I bought a CX550M which has the same EPS cable.

Ah, so the 4+4 locks together then? Picture shows it as an 8pin together so maybe it is just some picture magic they did to make it look better? If that the case then the problem is nonexistent and they have overlooked their 4pin.

Edit: Wait... I see the connection on the back of the PSU for the 4+4 cable, but is one included? I see the SATA, PCIE, and Molex modular cables in the review, but there is no mention of a 4+4.

Edit2: Ah it does say 4+4 at the end. So them locking together is true?

Edit3: KnitePrince, don't suppose you could of plugged your 4+4pin into a graphics card? Thought the clip and plug designs would prevent that, but that might be where your "missing" 4+4pin went. There are two unremovable cables that come out of this PSU and those are the motherboard and CPU cables, cables that you plug into other devices are the ones you can plug and unplug. Further information about the system build/upgrade would help resolve this issue.

 

[GhislainG]

No additional info is required, the OP already indicated that his motherboard has a 4 pin EPS connector.