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PSU wattage for 2xgtx590


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#1 iluvstrats2

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Posted 17 October 2011 - 11:46 PM

Been browsing power supplies and wattages for my system and not sure what wattage to go with. I've been looking at the PSU calculators out there and get anywhere from 865-1300<--only on one calculator did I get that high. Currently have a corsair tx850 and would 1000watt be enough or should I go higher?

system specs
fatal1ty 990x mobo
amd 1100t oc'd 4.0ghx
2 sticks vengence 1600 ram
H70 cooler with TT fans
2 cathodes
80mm led fan
120mm fan
1 hdd
cd/dvd drive
gtx590 (one more on the way)
corsair tx580

Intel 3930k @4.5ghz
ASUS P9X79 pro
Thermaltake Lvl 10 GT case
8 gb 2133 intel extreme masters ram
2x Gtx 590 sli
AX1200
H100 w/TT fans
2x OCZ vertex 3 SSD
Seagate 1tb HDD for storage


#2 Prunes

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Posted 18 October 2011 - 12:20 AM

I would say that you should opt for a 1200w PSU. Just to be on the safe side. I can see that you have your CPU OC'ed, and you'll probably end up with at least a mild OC on the cards, right? If so, then it'd be better to go for the 1200w.
I'm not 100% sure, but it's my best bet. Some of the others in here knows a lot more about the different cards wattage needs etc., so you should also wait for them to see what they've got to say.

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Mobo: Asus P8Z68 Pro Gen 3
CPU: Intel i5 2500k @ 4.3
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GPU: MSI GTX 670 Power Edition
SSD: Samsung 840 Pro 128 GB
HDD: WD Cavier Black 1TB
PSU: Corsair AX860i
Case: Fractal Design R4 Black

 


#3 bigball1

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Posted 18 October 2011 - 04:46 AM

Always go higher then what your system needs. if it asks for 500w go 600w. If it says 1000w go 1200w. Because you never know down the road you might change something.

Also you never what to run your PSU 100% all the time. it will burn out faster.

#4 Nyt_Ryda

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Posted 18 October 2011 - 05:10 AM

Corsair AX1200 - good enough for extreme LN2 overclockers, good enough for you ! (I should be a sales rep :P)

But I wouldn't run on anything less than 1000watt for those cards but 1200watt is the best and safest since those cathodes also suck power along with your other components
Note : That 1100t may not give you the performance you want from dual 590's . My 5870 tri-fire suffered a performance loss on a 1090t . If you want to get a Bulldozer later on to use on that 990 board then 1200watt minimum !!

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#5 Shurman292

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Posted 18 October 2011 - 05:48 PM

Corsair AX1200 - good enough for extreme LN2 overclockers, good enough for you ! (I should be a sales rep :P)

+1 You will not have to upgrade power supplies for a very long time if you get this one. Plus, with a 7 year warranty, you shouldn't have to worry about failures especially with a "professional series" PSU.
It's pricey but you will not regret it. :)

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#6 iluvstrats2

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Posted 18 October 2011 - 06:03 PM

Got a corsair now and love it! Planned on the ax1200.

Intel 3930k @4.5ghz
ASUS P9X79 pro
Thermaltake Lvl 10 GT case
8 gb 2133 intel extreme masters ram
2x Gtx 590 sli
AX1200
H100 w/TT fans
2x OCZ vertex 3 SSD
Seagate 1tb HDD for storage


#7 jdm_freek

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Posted 18 October 2011 - 07:08 PM

1.21 gigawatts? 1.21 gigawatts? Great Scott! :doh:

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#8 iluvstrats2

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Posted 18 October 2011 - 07:15 PM

jiggawatts!

Intel 3930k @4.5ghz
ASUS P9X79 pro
Thermaltake Lvl 10 GT case
8 gb 2133 intel extreme masters ram
2x Gtx 590 sli
AX1200
H100 w/TT fans
2x OCZ vertex 3 SSD
Seagate 1tb HDD for storage


#9 iluvstrats2

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Posted 18 October 2011 - 07:30 PM

ax1200 has been ordered!

Intel 3930k @4.5ghz
ASUS P9X79 pro
Thermaltake Lvl 10 GT case
8 gb 2133 intel extreme masters ram
2x Gtx 590 sli
AX1200
H100 w/TT fans
2x OCZ vertex 3 SSD
Seagate 1tb HDD for storage


#10 Bosco

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Posted 18 October 2011 - 08:34 PM

I am just in the process of getting ready to test two GTX 590's with the AX1200 :)

Main Gaming Rig
Intel 3960X
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#11 iluvstrats2

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Posted 18 October 2011 - 09:21 PM

Let me know how it goes! I'll probably have the second 590 ordered in the next few days.

Intel 3930k @4.5ghz
ASUS P9X79 pro
Thermaltake Lvl 10 GT case
8 gb 2133 intel extreme masters ram
2x Gtx 590 sli
AX1200
H100 w/TT fans
2x OCZ vertex 3 SSD
Seagate 1tb HDD for storage


#12 Bosco

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Posted 18 October 2011 - 09:25 PM

You might beat me, I have to get through testing GTX 580's in single, SLI and Tri SLI before I move to the 590's. I am betting I should be around 1K under full load.

Main Gaming Rig
Intel 3960X
MSI X79A-GD65 8D
16GB of Corsair Vengeance
NVIDIA 780TI's in SLI
Corsair Force 3 GT 240GB SSD
Coolermaster 932 Case
Noctua D14 CPU Cooler
Thermaltake Toughpower XT Platinum 1275 Watts
3 X 24" LCD's
Donating to OCC :::: OCC Site Rules :::: OCC Reviews
RIP Verran and Nemo gone but never will be forgotten.