Power Supply and Cooling Advice Needed

[bhalton26]

Hello all,

Two months ago I built my 3rd gamming machine and now I am ready to add more RAM, cooling devices, and another GPU. My new build is as follows:

AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz
ASUS M4A89TD PRO/USB3 AM3 AMD 890FX
ASUS Radeon HD 6950 2GB
CORSAIR CWCH50-1 High Performance CPU Cooler
CORSAIR HX Series CMPSU-850HX 750W
CORSAIR DOMINATOR 4GB DDR3 1600
LITE-ON Black 24X DVD+R 8X DVD+RW 12X DVD+R x2
Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM 64MB
NZXT Phantom Black Steel
Windows 7 64 Ultimate

I'm planning on getting another ASUS Radeon HD 6950 2GB * http://www.newegg.com/Product/Product.aspx?Item=N82E16814121416 * or may just swap out the 6950s and purchase two 6970's instead with two Sapphire Radeons HD 6970 2 GB * http://www.newegg.com/Product/Product.aspx?Item=N82E16814102918 *. Either way I will be Crossfiring this system really soon. Also I will had another set of CORSAIR DOMINATOR 4GB DDR3 1600 * http://www.newegg.com/Product/Product.aspx?Item=N82E16820145290 * along with some GPU cooling options such as ZALMAN VF3000N Enter VGA Cooler * http://www.newegg.com/Product/Product.aspx?Item=N82E16835118064 *. I'm still not sure which route to go with since the NZXT Phantom has a water cooler holes pre prep for this case, but my main concern is will my current 750W is able to handle the extra hardware I plan to add?

 

[bhalton26]

Thank You

 

[bhalton26]

Almost forgot. Do you have any advise on what cooling options I should go with with I CrossFire? This case I have 6 fans inside already, but still would like the best option to keep both cards under 60C when running games. So far I have not seen temps higher than 64C and thats only when I play GTA 4 and Crysis 2. Any other games I throw at this one card only does not push temps above 60C and will like to keep it that way. Also fan speed is set to 40% in CCC and card came OCed to 810MHz and I took it back down to 800MHz which knocked off 2C. Yeah I know..big deal, but hey I play games hard and want to keep system cool at all times .

So its between something like this: ZALMAN VF3000N Enter VGA Cooler * http://www.newegg.com/Product/Prod [...] 6835118064 *; or a water cooler that I have no clue about because its very new to me. Any aid on this would be most helpful

 

[bhalton26]

Thank You