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2x gtx780 - what psu ?

post #1 of 21
Thread Starter 
i don't know if this should go here or in the psu section ... (move please if i was wrong)
what would be a safe minumum W (i did see some builds with 1000-1200W) of a PSU for two gtx780 ?
(with i7 3770k)

Im buying one gtx780 now, but i want to be ready for the future biggrin.gif
post #2 of 21
With my 3930k and 3x GTX 780's, I am using an OCZ 1000W psu and regularly see 1100W+ at the wall. Subtracting out 265W for one less video card, I'd say a quality 800W psu should get you buy pretty comfortably.
    
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post #3 of 21
750-850w should do. A quality 650w can draw way more than it's load but since people on this site are obsessed with overkill...
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post #4 of 21
750 watts is more then enough unless you have a crazy system

The Rosewill Capstone is the best bang for buck option most of the time that is if you are from the US

Last welcome to OCN
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post #5 of 21
I'd also say that 750W is a very safe bet. Looking at what I've seen in reviews, 650W should be fine, too, especially if you're not overclocking. But really 750W is safe.
post #6 of 21
Thread Starter 
thank you all very much!
I was almost certain that i would have to go for something 1000+W biggrin.gif

now I have a different problem
I was certain to buy a Corsair PSU untill i read the huge anti-Corsair topic here (about their customer support)
the Rosewill Capstone is unavailable to me (Poland wink.gif)

could you please suggest some quality (preferably platinum, edit: but gold is good as well smile.gif) PSUs ?
Edited by userqwerty - 6/4/13 at 1:16pm
post #7 of 21
Quote:
Originally Posted by userqwerty View Post

thank you all very much!
I was almost certain that i would have to go for something 1000+W biggrin.gif

now I have a different problem
I was certain to buy a Corsair PSU untill i read the huge anti-Corsair topic here (about their customer support)
the Rosewill Capstone is unavailable to me (Poland wink.gif)

could you please suggest some quality (preferably platinum) PSUs ?

Enermax Platimax
Fractal Design Newton R3
Super Flower Golden King

You dont really need 80 plus platinum
Its more marketing hype then anything you need
80 plus gold is still very good and there are more gold then platinum units
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Seravee
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EVGA SuperNova G2 750 watt Phanteks Enthoo Luxe Roccat Kone XTD Laser Roccat Sense Metor 
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post #8 of 21
Thread Starter 
yeah I know about the platinum... I'm a slave to marketing...
I forgot to mention I would like it to be modular (not necessarily fully modular, i do have to use soma cables wink.gif ),
but I doubt the people here would recommend something 100% non modular for a i7,gtx780 build tongue.gif
post #9 of 21
Quote:
Originally Posted by userqwerty View Post

yeah I know about the platinum... I'm a slave to marketing...
I forgot to mention I would like it to be modular (not necessarily fully modular, i do have to use soma cables wink.gif ),
but I doubt the people here would recommend something 100% non modular for a i7,gtx780 build tongue.gif

There is no 100% fully modular platinum rated units below 1000 watts... yet there is a series from Antec on the way but they are not out yet

Only other option is the overpriced and overhyped Seasonic and Cosair units

Everything you want and need is the Antec High Current Pro Platinum 750 watts or HCP-750 Platinum as its also called
Seravee
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CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD40EZRX  WD Green WD60EZRX  WD Red WD80EFZX 8TB  
Hard DriveOptical DriveCoolingCooling
Seagate Ironwolf Pro 10 TB LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S 
OSMonitorMonitorKeyboard
Windows 7 64 Bit Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB 
PowerCaseMouseMouse Pad
EVGA SuperNova G2 750 watt Phanteks Enthoo Luxe Roccat Kone XTD Laser Roccat Sense Metor 
AudioAudioAudioAudio
Sennheiser HD 598 Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal 
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x2 Dali Opticon 2 CableMod E series PSU cable set CableMod LED Strips 
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Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD40EZRX  WD Green WD60EZRX  WD Red WD80EFZX 8TB  
Hard DriveOptical DriveCoolingCooling
Seagate Ironwolf Pro 10 TB LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S 
OSMonitorMonitorKeyboard
Windows 7 64 Bit Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB 
PowerCaseMouseMouse Pad
EVGA SuperNova G2 750 watt Phanteks Enthoo Luxe Roccat Kone XTD Laser Roccat Sense Metor 
AudioAudioAudioAudio
Sennheiser HD 598 Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal 
AudioOtherOther
x2 Dali Opticon 2 CableMod E series PSU cable set CableMod LED Strips 
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post #10 of 21
Thread Starter 
unfortunatelly most of the PSUs you suggest are unavailable here in that power range and certification
only Enermax is

also here it's the other way around, Enermax is overpriced
compared to the Enermax ATX Platimax EPM850 EWT
- Corsair AX860 is 100$ cheaper
- Corsair AX860i is 80$ cheaper
- Seasonic Platinium-860 is 50$ cheaper

Enermax ATX Platimax EPM750 AWT also cost more than Corsair AX860 (only 20$) and about the same as AX860i, but offers quite a bit less W

I was so decided on AX860(i) it's hard to let go
I understand that the "i" software is low quality, but what about the hardware? does it really go up in smoke that often ?
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