SLI 680s with a 650W PSU using 8pin to 2x6pin?

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miggtt699

miggtt699

Distinguished
Aug 31, 2012
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I was wondering if there would be much trouble of me SLIing 2x GTX 680s by using one of these:

s-l1600.jpg


My power supply is a VS650 and has 2 6+2 connectors that makes it 2 8 pin, by using these I'd convert 2x8 pin to 4x 6 pin, would this be a good idea or timebomb?

System specs:

Intel Xeon X5650 six-core @3.3Ghz (OC)
Asus Sabertooth X58
12GB Triple channel HyperX FURY black
EVGA GeForce GTX 680 SuperClocked 2048MB GDDR5
Corsair VS650 PSU
Bitfenix modcables
NZXT H440 white
Samsung 850 EVO 250GB Sata 3
Western Digital Blue 1TB
Western Digital Blue 500GB
Raijintek Triton 2x120mm Push.
 
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bignastyid
Even if it was a good 650w(which it is not) PSU it would struggle. At full load with 2 680s you'll be around 600-650w, so you want atleast a good 750w PSU I'd probably get 850w. My rig with 2 770s(rebranded 680s) I can get close to 700w(cpu and gpus overclocked).
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ChumP

ChumP

Splendid
Sep 16, 2014
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Highly recommend changing that PSU , before buying your second 680.
Corsair VS series are known for their low quality capacitors and high failure rate.

Choose a T1/T2 750W unit from here : http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html
 
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bignastyid

bignastyid

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Jun 19, 2011
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Even if it was a good 650w(which it is not) PSU it would struggle. At full load with 2 680s you'll be around 600-650w, so you want atleast a good 750w PSU I'd probably get 850w. My rig with 2 770s(rebranded 680s) I can get close to 700w(cpu and gpus overclocked).
 
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