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post #11 of 23
Quote:
Originally Posted by Jov4nTh3Yu9o View Post
Really? Even for 3 power saving gpu's
Fixed


These new GPUs don't use nearly as much power as you think, trust me. I can go triple SLI with 580's with 850W and barely make it (although I would never try it, too much stress on the PSU). Those use half the power of a 580, you would be fine. There is no need to worry
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post #12 of 23
Thread Starter 
Ok thanks
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post #13 of 23
if you are worried though then get the 1000W PSU. That will make the power efficiency better since the 850W will be supplying about 750W of power to the system, so it will take a hit to efficiency for sure.
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post #14 of 23
For 3 6950s, 850 would be more than enough. 900-950 if you really wanna be over-safe.
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post #15 of 23


If you are gonna triple SLI 6950s your gonna need some serious power...

SILVERSTONE Strider Gold ST1200-G 1200W ATX 12V v2.3 / EPS 12V 80 PLUS GOLD Certified 100% Modular, Active PFC Power Supply ($290)



292 Watts X 3 6950s = 876 Watts
Add 300 Watts for Components (for headroom & overclocking)

Total Power Consumption under Full Stress = 1176 Watts

You will not be putting this system under Full Stress most of the time, unless your gaming non stop...

In that case you might even go for overkill and jump to 1500 watts if you don't mind paying a larger electric bill.... (+ $20-$40 / Month)

SILVERSTONE ST1500 1500W ATX 12V 2.3 & EPS 12V SLI Ready 80 PLUS SILVER Certified Active PFC Power Supply ($380)



Dual SLI would be better because you could use a lower wattage PSU and the gain for the third Video Card just doesn't warrant paying the extra cash for the extra power (monthly mind you)...
Edited by _GTech - 2/16/11 at 11:35pm
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post #16 of 23
Quote:
Originally Posted by reflex99 View Post
For 3 6950s, 850 would be more than enough. 900-950 if you really wanna be over-safe.
just recommended the 1000W since that is the model that Corsair makes in the HX series which is much better than the TX950W one that they make.

I thought it was a worthwhile upgrade


Just for anyone else who is reading the AX series are nearly identical to the HX series in everything but power efficiency. So if you are debating between the two that is the only difference. The AX1200W however, is on a whole new level and is easily the best PSU made by Corsair out right now, perhaps the best PSU overall. It is to me at least

Here is the Corsair HX850W it is literally 89.5% efficient so it missed the gold mark by .5%. So small that fluctuations in power requirements could cause it to go over or under the mark. Corsair just played it safe with the Silver rank, I think that they could have gotten away with the Gold Efficiency rating if they wanted to
Edited by hfcobra - 2/16/11 at 11:12pm
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Dream Machine
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My laptop
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CPUMotherboardGraphicsRAM
Intel i7 4790K ASUS Maximus VI Hero EVGA GTX780Ti 16GB G.Skill Trident X 
Hard DriveCoolingCoolingCooling
Samsung EVO 500GB EK Supremacy EK GTX780Ti block Alphacool NexXxoS XT45 420 
CoolingCoolingOSMonitor
Alphacool NexXxoS UT60 280 x8 Noctua NF-A14 PWM fans Windows 10 64-bit BenQ XL2430T 
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BenQ XL2420T Realforce Tenkeyless 45g Corsair AX860i Corsair 750D 
MouseMouse PadAudio
Logitech G Pro Logitech G640 Sennheiser Game One 
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Core i7 920 D0 @ 4.2GHz Gigabyte GA-X58A-UD3R rev. 2 EVGA GeForce GTX 580 6GB DDR3 OCZ Platinum @ 1600 6-8-6-24 1T 
Hard DriveHard DriveCoolingOS
Crucial C300 Samsung HDD Noctua NH-D14 with 3 NF-P14 fans Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
BenQ XL2420T Realforce 87UB Corsair HX850W HAF-X 
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post #17 of 23
Newegg just had a sale on all Corsair PSUs. I think it ended today. 10% off with the code FEBSAVE10 at checkout.
post #18 of 23
The HX1000 is not a worthwhile investment at this time. It's not a bad PSU, but there are better for the price. Like the NZXT Hale90 1000W. Cheaper and better.
post #19 of 23
Quote:
Originally Posted by Phaedrus2129 View Post
The HX1000 is not a worthwhile investment at this time. It's not a bad PSU, but there are better for the price. Like the NZXT Hale90 1000W. Cheaper and better.
Agreed. I have seen the NZXT Hale90, very nice unit.
post #20 of 23
Quote:
Originally Posted by hfcobra View Post
just recommended the 1000W since that is the model that Corsair makes in the HX series which is much better than the TX950W one that they make.

I thought it was a worthwhile upgrade


Just for anyone else who is reading the AX series are nearly identical to the HX series in everything but power efficiency. So if you are debating between the two that is the only difference. The AX1200W however, is on a whole new level and is easily the best PSU made by Corsair out right now, perhaps the best PSU overall. It is to me at least

Here is the Corsair HX850W it is literally 89.5% efficient so it missed the gold mark by .5%. So small that fluctuations in power requirements could cause it to go over or under the mark. Corsair just played it safe with the Silver rank, I think that they could have gotten away with the Gold Efficiency rating if they wanted to
I think you have it backwards.

TX950 repersents a decent value, while the HX1000 is meh
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