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2 x 8-pin ATX 12V Power connectors need both?

post #1 of 6
Thread Starter 
I have an Asus Rampage Extreme III motherboard and it has as the subject says. On the motherboard they have four of the eight pins covered on each of the 8-pin power connections. My power supply has an 8 pin separated into two 4 pin so I plug one into each. Problem is the cable makes it in the top of the case, but ofr proper cable management can't reach from behind. My Cosmos S case came with an 8 pin extension cable but that would mean I would have to put all eight pins into one of the two 8-pin connctors and not 4 in one and 4 in the other. Does this matter? Should I stick with 4 and 4? Thinking of getting extension cables for the two 4 pin's but not sure if I can just stick with the 8-pin in one of the two.

Thanks.

JR
Edited by jriker1 - 12/27/10 at 8:09am
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JR's System
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post #2 of 6
Quote:
Eagle eyed readers will notice that the Asus ships with not one but two eight-pin 12V Aux connectors. If you have a suitable power supply this allows you to improve the voltage being supplied to the CPU.opo If that still isn't enough power for your overclocking exploits you can add even more via two further 4 pin Molex connectors; one above the primary PCIe slot and one right at the bottom of the board. Whilst these are appreciated their placement doesn’t exactly lend itself to tidy cable routing.
Taken from: http://itshootout.com/r-341/asus-ram...rboard-review/

From the sound of that a single 4 pin is enough, 8 pin is nomrally recommended, if your overclocking the more power the more stable!

Hope that helps!
Sokar
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post #3 of 6
Quote:
Originally Posted by jriker1 View Post
I have an Asus Rampage Extreme III motherboard and it has as the subject says. On the motherboard they have four of the eight pins covered on each of the 8-pin power connections. My power supply has an 8 pin separated into two 4 pin so I plug one into each. Problem is the cable makes it in the top of the case, but ofr proper cable management can't reach from behind. My Cosmos S case came with an 8 pin extension cable but that would mean I would have to put all eight pins into one of the two 8-pin connctors and not 4 in one and 4 in the other. Does this matter? Should I stick with 4 and 4? Thinking of getting extension cables for the two 4 pin's but not sure if I can just stick with the 8-pin in one of the two.

Thanks.

JR

No, you do not need both unless you are do some sub-zero extreme overclocking.

You should just plug the 4+4 into a single 8-pin EPS plug. It is more secure and better for wire management. It doesn't matter as they all are electrically the same.

Never use cable splitters for these as it defeats the purpose of lowering resistance.
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post #4 of 6
Thread Starter 
Thanks for the input. So sounds like the second one isn't needed. While I was searching the net came across a dual four pin moles to 8-pin 12v and a dingle moles to 8-pin. Curious. Do both work for this situation or no? Not sure which way the conversion is going. To or from the 8-pin.
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post #5 of 6
i have 1x8pin ATX for the second 8pin ive just ordered a single 12v 4pin molex to 8pin ATX on ebay will let you know
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post #6 of 6
tomaso1z
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