Question ASUS X99-Aii Motherboard question regarding EATX 4 pin connector

Starnet

Distinguished
Nov 24, 2010
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Need some info, trying to get a repurposed motherboard up and running. Can anyone confirm (FOR SURE) if the 4 pin EATX 12 power supply connection is really necessary. My Corsair CX650m powersupply only has a 8 pin connector. I first tried that plugged into the 8 pin port and the motherboard would not complete POST. I found a post on the ROG web site that said that you only need the 4 pin EATX only if your overclocking or running multiple Graphics.

I tried to split the 8 pin connector to 2-4 ping plugging one into the 8 pin connection and the other 4 pins into the 4 pin spot. With this configuration it would not even power up.

If you have one of these motherboards if someone could momentarly unplug the 4 pin EATX connect and let me know if it starts to post and stops and what code it presents.

I called Corsair and asked the for the 4 pin EATX cable for my modular power supply. They said they don't make one for my version and to buy a new supply, apparently the new version o this supply has the cable. How Nice. They can pound sand, this supply is not that old, what good is a modular supply if they don't make the cables you need. Sorry I'm ranting, id it ends up that I need a new supply I will be switching to the XPG brand. Anyhow, a little help here would be greatly appreciated.
 

Lutfij

Titan
Moderator
Can anyone confirm (FOR SURE) if the 4 pin EATX 12 power supply connection is really necessary.
To answer your question, no you don't need to hook up to the EATX12V_2 connector on the board, unless you're going to perform an overlock on the processor.

I tried to split the 8 pin connector to 2-4 ping plugging one into the 8 pin connection and the other 4 pins into the 4 pin spot. With this configuration it would not even power up.
Since you've also asked, if your PSU lacks the necessary connectors for your build you either have;
a| the wrong PSU for the job
or
b| the wrong components for the PSU

Using splitters/adapters on a PSU is a sure way to start a fire. Pretty much all problems have come from adapters or splitters.

this supply is not that old,
Now you've gained my attention, how old is your PSU and which CX650M do you have? This;
https://www.corsair.com/us/en/p/psu...ronze-certified-modular-atx-psu-cp-9020103-na
or this;
https://www.corsair.com/us/en/p/psu...lus-bronze-semi-modular-atx-psu-cp-9020221-na
?