6970 xfire PSU

[dummos]

power supplies are one thing im not too sharp on does anyone know if i can run 6970's x-fire with a thermaltake litepower 700

http://www.pccasegear.com/index.php?main_page=product_info&products_id=12769

other than the gpu's i would be running a 2500k 1xssd 1xhdd 3x 120mm case fans and a hyper evo 212 cpu fan

 

[abekl]

I don't think it will work. You need a PSU with four PCIE connectors, and this PSU only appears to have two.

 

[WR2]

Hello dummos;

That Thermaltake Litepower 700W is actually a 600W PSU.
Not exactly what you want for 2x HD 6970 CFX.


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What kind of budget do you have for your PSU?

 

[abekl]

This would be a better choice:
CORSAIR Enthusiast Series TX750 V2 750W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
http://www.pccasegear.com/index.php?main_page=product_info&products_id=17209

 

[dummos]

i was thinking if i need to upgrade something like http://www.pccasegear.com/index.php?main_page=product_info&products_id=16143 would be around my price range

 

[abekl]

750 watts is fine. It's the current on the rails and the right connectors that matter. The one I suggested will do you fine.

 

[WR2]

Antec High Current Gamer 750 W Power Supply Review

Antec HCG-900 900W review

 

[WR2]

Corsair TX750 V2 Power Supply Review

 

[ko888]

For a system using two Radeon HD 6970 graphics cards in 2-way CrossFireX mode AMD specifies a minimum of an 800 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 63 Amps or greater and have at least two 6-pin and two 8-pin PCI Express supplementary power connectors.

Your Thermaltake Litepower Series 700W (W0356), which is really a rebadged 600W HEC/Compucase unit as @WR2 pointed out, with its maximum combined +12 Volt continuous current rating of 36.7 Amps and one 6-pin and one (6+2)-pin PCI Express supplementary power connectors, will not work with two Radeon HD 6970 graphics cards in 2-way CrossFireX mode in your system.

The Antec High Current Gamer Series 900W (HCG-900), with its maximum combined +12 Volt continuous current rating of 70.8 Amps and with four (6+2)-pin PCI Express supplementary power connectors, will work. It should even be able to handle the running of Furmark or OCCT GPU stress testing.

 

[dummos]

great explanation ko888 have yourself a best answer badge im gonna get an antec they are cheap atm

 

[dummos]

Best answer selected by dummos.