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This PSU good enough?

post #1 of 10
8/6/12 at 10:18pm
Thread Starter 
So, my sig rig is in my sig:)

My question is this:

I have the opportunity to get a Corsair AX850 for a pretty cheap price. This one:
http://www.ncix.com/products/?sku=53719&vpn=CMPSU-850AX&manufacture=Corsair

My INTERNAL hardware is as follows:
CPU: 2600k @ 4.5GHz (Soon to be 3770K)
GPU: 2x6970. Soon to be 2x7970 GHz Editions (next month)
Motherboard: Maximus V Formula
HDD: 1tb Seagate
SSD: 120GB Vertex 2 (Upgrading to 256GB Samsung next week)
RAM: 8GB 1.25v Sniper Series (upgrading to 1.5v 2x8GB Ripjaws next week)

Plus there's my h100, and a bunch of fans.

Is 850w enough for this?
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post #2 of 10
8/6/12 at 10:21pm

Yep, it is way more than enough actually.  Even a nice 650W PSU would be enough.  However, I don't know how the power consumption of the 7970 scales when they're overclocked, so I would go in the middle with a nice 750W power supply.

It's like advanced alien technology! :)
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It's like advanced alien technology! :)
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post #3 of 10
8/6/12 at 10:22pm
  • adizz
  • Graphics Card Aficionado
850W is puh-lenty. thumb.gif
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post #4 of 10
8/6/12 at 10:22pm
The ax850 is plenty of power for your build using either gpu setup. Your good.
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post #5 of 10
8/6/12 at 10:22pm
Plenty
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post #6 of 10
8/6/12 at 10:23pm
Thread Starter 
Just to clarify, I'm talking about CROSSFIRE video cards here:P
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post #7 of 10
8/6/12 at 11:17pm
Yeah. Still enough!
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post #8 of 10
8/6/12 at 11:21pm
yup should be more then enough smile.gif
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post #9 of 10
8/6/12 at 11:30pm
Just so you're convinced you have enough power...

I've got an Intel i5 2500k
Four 1.5V RAM sticks
H100
5 fans
Two drives
One fan controller
One CD/DVD Drive
"Very high end" motherboard
Up to 8 USB devices at any time
And two crossfire 6950's.

All powered on an AX750

You'll be fine. ;]
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post #10 of 10
8/7/12 at 12:00am
  • obsidian86
  • Nobody knows what it means, but its provocative
Quote:
Originally Posted by Raven Dizzle View Post

Just to clarify, I'm talking about CROSSFIRE video cards here:P

ax 850 is more then enough if you dont overclock it would be enough for 3 7970's
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