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Having trouble connecting Corsair AX850 PSU to ASUS P8P67 Deluxe.

post #1 of 15
Thread Starter 
I'm building my first PC. I am testing it out of the box before I put it in the case. I have the motherboard on top of it's box, on my desk. The AX850 is next to it. I've put in the i5-2500K CPU, the Silver Arrow cooler, the GSkill Sniper ram, and the ASUS GTX580 DirectCU II GPU. I've connected speakers to the audio port and a DVI wire to the 580.

The wall plug is not in the outlet yet so no worries.

I've read both the Corsair and ASUS manuals and I've don't quite understand either of them. I don't know what to do. I've connected the 24 Pin MAIN on both ends. There is only one like it so that is it. On the end that goes to the PSU, there is another plug hanging from it. The manual doesn't seem to say what to do with it. I am very confused. I find both manuals lacking in detail for first-time builders. kookoo.gif

The 580 GPU has it's plug but I don't know where to connect that either.

The plugs are not attached to the PSU, they are separate. It comes with the following...
1 x Main connector (20+4Pin)
2 x 4+4-Pin ATX/EPS 12V
8 x Peripheral
12 x SATA
2 x Floppy
4 x PCI-E

I am gonna continue to read the manuals but I don't have the balls to turn it on and see something fry.

Please give input. Thank you...
Edited by Deverica Wolf - 5/14/11 at 9:01pm
post #2 of 15
okay buddy. I dont think its a good idea to test it out of the box because its not grounded. You definitely could wreck your motherboard. Make sure you put it in a case or a test bench.

But for turning the motherboard on to test in a case/testbench, make sure you plug a 8 pin connector to your motherboard. That should be the 4+4-pin. Then I see that you got your 24 pin already connected. Now you need to plug a 6-pin and another 8 pin to your GTX 580. That should be one of the PCI-E cables and look for another 4+4 pin to be your 8 pin. These two cables should be connected to the GTX 580.

Is that clear? if not, ill try to explain in a different way.
post #3 of 15
I think he's talking about the 2 plugs that go into the ax850 for the 24pin main cable. There's a plug right above (i think) that the "other" cable plugs into if that description helps. It should be the only plug with that number of connections. Both of them have to be connected.
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post #4 of 15
Yeah just looked directly below the big plug goes the other one.

Found a picture:

12851953720HkzPgJyAg_3_1_l.jpg
24 pin on the left.
Edited by systemlayers - 5/14/11 at 9:21pm
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post #5 of 15
Thread Starter 
Sorry for the delay. This PSU beast is knocking me out. Too many cords. Geez...wheee.gif

My manual says this...
Quote:
QTY: 1
LENTH: 600mm
Connecter/Cable: 1
ATX Cable (24-PIN)

QTY: 2
LENTH: 600mm
Connecter/Cable: 1
EPS12V CPU CABLE (8-PIN)

QTY: 2
LENTH:600mm
Connecter/Cable: 2
PCI-E Cable
Quote:
Originally Posted by cheenou77;13508348 
okay buddy. I dont think its a good idea to test it out of the box because its not grounded. You definitely could wreck your motherboard. Make sure you put it in a case or a test bench.

Well, I was going by advice in regards to testing it out of the box. Bad idea? I could put it in the case first. It's no problem.
Quote:
But for turning the motherboard on to test in a case/testbench, make sure you plug a 8 pin connector to your motherboard. That should be the 4+4-pin.

The Corsair manual says the following...
Quote:
Connect the eight-pin +12V (EPS12V) cable to the power supply, and then to the motherboard.
a. If your motherboard has an eight-pin +12V socket, connect the eight-pin cable directly to your motherboard.
b. 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.

The problem is the manual says there are two of these cords but I only find one like it. It is 8-pin on one end, and two 4-pins on the other. Corsair must have made a mistake.
Quote:
Now you need to plug a 6-pin and another 8 pin to your GTX 580. That should be one of the PCI-E cables and look for another 4+4 pin to be your 8 pin. These two cables should be connected to the GTX 580.

Yes, the 580 comes with one. My problem is I don't know where to connect it on the motherboard either.
Quote:
Is that clear? if not, ill try to explain in a different way.

Thanks.
Edited by Deverica Wolf - 5/14/11 at 10:09pm
post #6 of 15
Thread Starter 
Thank you for that picture. I figured it went underneath. I just wanted someone to tell me it was OK.
post #7 of 15
okay, so the one that came with your 580 is an adapter, I don't think you need to use that one to connect. Instead, find a 8 pin and a 6 pin from your power supply and use those to connect to your 580. You sure you got it now?
post #8 of 15
Thread Starter 
Quote:
Originally Posted by cheenou77;13508727 
okay, so the one that came with your 580 is an adapter, I don't think you need to use that one to connect. Instead, find a 8 pin and a 6 pin from your power supply and use those to connect to your 580. You sure you got it now?

Yes. The only one I have is a PCI-E cord. It has three connecters. A big 12-pin, which I assume is for the PSU. And two 8-pins and can turn into 6-pins. So this is OK for the 580? I can't find a 6-pin port on the motherboard at all...frown.gif

attachment.php?attachmentid=26462&stc=1&d=1295926947

It is that, except mine has two 8-pin ports at the top. Also comes with a wire for those gold ports on the right; I don't know what those are.
post #9 of 15
Quote:
Originally Posted by Deverica Wolf;13508604 
Sorry for the delay. This PSU beast is knocking me out. Too many cords. Geez...wheee.gif

The Corsair manual says the following...


The problem is the manual says there are two of these cords but I only find one like it. It is 8-pin on one end, and two 4-pins on the other. Corsair must have made a mistake.
They split it on the other end on purpose. Lower end boards only have a 4 pin ATX connector, while higher end have 8. You will be using all 8 on your motherboard.
Quote:
Yes, the 580 comes with one. My problem is I don't know where to connect it on the motherboard either.

Thanks.
The Pci-e cables do not connect to your motherboard. As you've discovered below, they plug into your graphics card for additional current/voltage capabilities. Trying to run a 580 from the 24 pin would be bad juju. laughingsmiley.gif
Quote:
Originally Posted by Deverica Wolf;13509009 
Yes. The only one I have is a PCI-E cord. It has three connecters. A big 12-pin, which I assume is for the PSU. And two 8-pins and can turn into 6-pins. So this is OK for the 580? I can't find a 6-pin port on the motherboard at all...frown.gif
Yes, the 12 pin connects to the PSU, then you plug one of the 8 pins in, and "make" a 6 pin from the other 8 pin. (On most cards that require both 8/6.)
attachment.php?attachmentid=26462&stc=1&d=1295926947

It is that, except mine has two 8-pin ports at the top. Also comes with a wire for those gold ports on the right; I don't know what those are.
If you have two 8 pin connectors just plug in the 6+2 on both. You should have enough cables to do this. The golden "fingers" are for SLI, a ribbon cable that connects two or more cards for more graphics power.
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post #10 of 15
Thread Starter 
Quote:
Originally Posted by HAF_wit;13509435 
If you have two 8 pin connectors just plug in the 6+2 on both. You should have enough cables to do this. The golden "fingers" are for SLI, a ribbon cable that connects two or more cards for more graphics power.

Yeah, I have two of them. Thanks, I understand now. smile.gif

I figured the Golden ports were for SLI was too lazy to Google.

OK, so I am gonna put the mb in the case; don't want to risk anything.

I have two 8 pin cords: An 8-pin to two 4-pins, and an 12-pin, in which 4 of the pins are blank (just holes), to two 4-pins. The 8 and 12-pin ends go in the psu and the two 4-pins go on the mb. Does it matter which one I use the on 12v port?
Edited by Deverica Wolf - 5/15/11 at 9:19am
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