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2x Amd 6950 crossfirex power supply requirements

Last response: in Graphics & Displays
May 5, 2012 4:41:50 PM

I was thinking of getting a second GPU identical to my 1st one for a triple monitor setup, would my current PSU fit the bill?

Also, would that second GPU generate too much heat? (Currently running at around 70 degrees C on BF3 Ultra) Should I invest in a better CPU Cooler or something?

Here is my rig:

Current GPU: MSI Twin Frozor III Radeon HD 6950 2gb

PSU: Corsair TX850 (850W)

CPU: Intel Core i7-2600k OC'd to 4GHz w/ stock cooler

Motherboard: GIGABYTE GA-Z68A-D3H-B3

RAM: CORSAIR Vengeance 16GB (4 x 4GB)

HDD: Seagate Barracuda 1TB 7200 RPM

SSD: Corsair Force 3 60 GB

DVD Burner: Lite-On 24x

Case: Corsair Graphite 600T W/ 2 additional 120mm fans (room for 2 more)
May 5, 2012 4:51:35 PM

your PSU is plenty. it would be wise to get a case fan or two to exhaust the added heat.
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May 5, 2012 5:15:54 PM

From what I have seen in Crossfire with everything tweaked, the cards didn't hit 450w.

And you will probably never hit FurMark loads, anyway.

May 6, 2012 12:14:48 AM

using HWmonitor and my ups to check,I'm drawing close to 700W with my setup.(BF3 ultra)

I would also do more for case airflow,fans etc,my cards never get anywhere near 70'