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Asus Ares - Adding a third 8 pin connector - Page 2

post #11 of 24

There should be no issues.. swap away! 

 

 Most benefit from the additional 2x pins is the extra ground. Having another 12v input isnt what provides extra head-room.. its the extra ground that allows for additional current. wink.gif

 

**You got a hot-air gun.. or what to remove solder and get the job done correctly/aesthetically??

post #12 of 24
the Evga classified 580 supported 3 8pin tongue.gif.

Reason to do it: Why not

reason not to do it: 2 8 pins is already enough, 3 is not needed but hey ^ why not
post #13 of 24
IF you can properly solder it i say what the heck, go for it! Just be careful to make proper solder connections that wont break easily and look good, if the pcb is designed to take the extra juice, I don't see why not.

There might be two reasons it didn't came 3x8pin from factory... Either convenience, or the pcb is utilized on more models which might use the 3x8pin configuration.

If you take care and do it properly, I don't see how you can damage it.
From my experience, gpus are sturdier than most people give them credit for.
post #14 of 24
Somebody else here did it to a pair of 6870s and it did work, i say go for it.
    
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post #15 of 24
Quote:
Originally Posted by derickwm View Post

My question, would there be any reason that I should not do this? Has anyone done this or seen it done? I did a few quick Google searches and didn't find much.
Thanks.

Because it doesn't change electrical power delivery -
pcieplugdiagramoa5.png

Those extra two pins are sense pins (given that the existing 6 pins are all 3x3, lacking lacking the wire they don't need). You'd get the same benefit (assuming the card is set up to see the grounds) by adding a jumper from those two pins to ground, as they all end up common in the PSU anyways. It could be cleaner that way.

The card already has 150W*2 and 75W*2 for a total of 450W available. How close are you to 450W draw?
Edited by u3b3rg33k - 10/14/12 at 12:06pm
 
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post #16 of 24
Quote:
Originally Posted by richie_2010 View Post

Could be the way the pcb was manufactured, is there any other cards with 3 8 pin connectors

the MSI GTX480 Lightning has this exact layout : 2x 8-pin and 1x 6-pin
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post #17 of 24
http://www.techpowerup.com/reviews/MSI/N480GTX_GTX_480_Lightning/26.html

max power draw was 320W... only in an extreme case (LN2 maybe?) could you actually need that much available power. take the two 8 pin connectors (150W *2 = 300W), and you've got 20W to split up in the remaining 150W budget.

This:
http://www.bit-tech.net/hardware/graphics/2010/07/27/asus-ares-review/7
says the whole computer at load only pulled 440W at the PLUG!
 
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post #18 of 24
Thread Starter 
My first reason for wanting to do it isn't for performance gain tongue.gif

It's simply so I can have a flush 24 pin setup on the cards, to match the sleeving scheme of the motherboard 24pin. Any performance gain would just be a bonus smile.gif
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post #19 of 24
Do it Derick! we should make that a chant...
    
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post #20 of 24
It's not worth it. The 2 extra pins will not increase your overclock.
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