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Need helping picking a PSU for a GTX 460 SLI setup

post #1 of 21
Thread Starter 
I was looking at a couple of power supplies, but now I just need to decide which I want. I want to be able to SLI my GTX 460's (they will be overclocked) while still having enough power for my overclocked CPU. I also want a little leeway just in case I upgrade anything else for whatever reason.

1000w - http://www.newegg.com/Product/Produc...82E16817171049

850w - http://www.newegg.com/Product/Produc...82E16817171048

750w - http://www.newegg.com/Product/Produc...82E16817139010

Those are the specific ones I'm looking at.

I'm getting a lot of different answers: I read that 750w isn't enough and that I should get an 850w, then I hear that 750w is plenty. I feel like I should just go with the 1000w, but I don't know if it's necessary.
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White Lightning
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post #2 of 21
750W is indeed plenty, in fact 650W would be plenty, so that's my recommendation.
Anything beyond 750W would be downright idiotic honestly, when you consider that 850W is enough for a pair of GTX 480s.
My suggestion is an Antec TruePower New TP-650. Cheap and great.
post #3 of 21
Thread Starter 
Well seeing as I probably won't upgrade my graphic cards for a while because GTX 460 SLI is a beast, as I hear, I might end up going with the 750w. I'm sure by the time I need a 1000w I'll have a whole new setup on the way.
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White Lightning
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Corsair F120 SSD, OCZ Agility 4 512G, Samsung 1... LG DVD/ROM H100i Windows 7 64 bit 
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post #4 of 21
Agreed, 750w is plenty, my 850w is pretty much overkill for my 460 SLI rig. The only reason I swapped out my 650 was the lack of PCI-E cabling on my TX650.
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post #5 of 21
750W is enough for a pair of SLI 460's with headroom for more upgrades
and GTX 460 SLI would probably only need minimum 550W
post #6 of 21
Most 550w PSUs only have enough cabling for a single 460, which is the reason to go a little higher. I know it's stupid, but finding a 550w PSU with the 4 6 pin PCI-E cables to run SLI 460s is very hard.
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post #7 of 21
Quote:
Originally Posted by allikat;13328477 
Most 550w PSUs only have enough cabling for a single 460, which is the reason to go a little higher. I know it's stupid, but finding a 550w PSU with the 4 6 pin PCI-E cables to run SLI 460s is very hard.

Adapters, duh ...

OP: 550W or 650W. 650W should be more than enough. Also considered that future CPU's presumably use less power.
I recommend the XFX Black Edition PSU at 650W, if you intend to go above 550W.


1x GTX 460 = 160W * 2 = 320W
CPU = 125W
Remaining components= 75W

= 520W + overclocking headroom. Make sure you get a good PSU, that's like 50% of the importance.
Edited by p4p3r - 4/30/11 at 4:29am
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post #8 of 21
Why upgrade?
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Why overclock?!
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128GB Samsung 830 500GB Samsung 840 Evo allota fans but quiet! Win 7 64 
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Why upgrade?
(14 items)
 
Why overclock?!
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Core i5 760 ASUS 55i Sabertooth EVGA 960 4GB 8gb 1600mhz Vengeance 
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120gb Intel 320 (OS) 500gb Samsung 850 Evo Win 7 64 Viewsonic VX2250-Wm 
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Seasonic G 550w Gold Lancool PC-K9B Logitech G5 X-Fi Titanium/AT-H700 
CPUMotherboardGraphicsRAM
Core i5 4690k Asus Z97 Sabertooth mk2 EVGA 970 8gb Kingston 1833mhz 
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128GB Samsung 830 500GB Samsung 840 Evo allota fans but quiet! Win 7 64 
MonitorKeyboardPowerCase
Dell U2311H Rev. A01 Mechanical w/ Cherry Blues NZXT Hale 650w NZXT Phantom - white 
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post #9 of 21
Native cabling > adapters, every time.
Ryzen 5 1600
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256GB Samsung PM961 Polaris M.2 NVMe  1TB Toshiba DT01ACA100 3.5" HDD, SATA III  Cooler Master Hyper 212 Evo Windows 10 64 
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Unicomp Model M 650W EVGA SuperNOVA G1, 80PLUS Gold, Full Modular Kolink Luminosity Cooler Master Reaper Aluminium 
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Ryzen 5 1600
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CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600 MSI B350 Gaming Plus Gigabyte GeForce GTX 1060 WINDFORCE2 OC 16GB (2x8GB) Corsair DDR4 Vengeance LED, PC4-24... 
Hard DriveHard DriveCoolingOS
256GB Samsung PM961 Polaris M.2 NVMe  1TB Toshiba DT01ACA100 3.5" HDD, SATA III  Cooler Master Hyper 212 Evo Windows 10 64 
KeyboardPowerCaseMouse
Unicomp Model M 650W EVGA SuperNOVA G1, 80PLUS Gold, Full Modular Kolink Luminosity Cooler Master Reaper Aluminium 
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post #10 of 21
Quote:
Originally Posted by p4p3r;13328505 
Adapters, duh ...

OP: 550W or 650W. 650W should be more than enough, probably even overkill. Also considered that future CPU's probably use lesser power.
I recommend the XFX Black Edition PSU at 650W, if you intend to buy 650W.

Adapters are unsightly and most people on OCN use there molex for case fans. Also, drawing so much power from molex can make them melt.

Yes, it's happened to me.
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