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What size PSU for TWO R9 280X?

HemilTV
By HemilTV
in Power Supplies
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So, I'm considering getting two  gigabyte windforce 280x cards for litecoin mining.

What SIZE power supply do I need?

Will the Corsair CXM 750 suffice?

The gigabyte website says: http://www.gigabyte.com/products/product-page.aspx?pid=4793#sp

Power requirement

600W(with one 6-pin and one 8-pin external power connectors)

but that's just for one, will the corsair cxm750 be good?

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The cx750m is enough but you'd want something in the 800w+ range for mining. 

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Posted

So, I'm considering getting two  gigabyte windforce 280x cards for litecoin mining.

What SIZE power supply do I need?

Will the Corsair CXM 750 suffice?

The gigabyte website says: http://www.gigabyte.com/products/product-page.aspx?pid=4793#sp

Power requirement

600W(with one 6-pin and one 8-pin external power connectors)

but that's just for one, will the corsair cxm750 be good?

No the CX750 won't since there are not enough connectors. Get a AX760 or a SeaSonic X 750. I would recommend getting a 800w PSU for extra headroom

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The cx750m is enough but you'd want something in the 800w+ range for mining. 

Uh not to be rude...but how is this in the proper section?

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yeah its enough but keep in mind the cx psus are entry level ones

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No the CX750 won't since there are not enough connectors

thats not true its has 4x 8pins(6+2) and one card needs 8&6

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http://www.extreme.outervision.com/psucalculatorlite.jsp

 

I have found this to be a very valuable tool. Just plug in what you have or what you are ordering and voila it will calculate the power requirement, and recommended power for the parts selected.

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So, I'm considering getting two  gigabyte windforce 280x cards for litecoin mining.

What SIZE power supply do I need?

Will the Corsair CXM 750 suffice?

The gigabyte website says: http://www.gigabyte.com/products/product-page.aspx?pid=4793#sp

Power requirement

600W(with one 6-pin and one 8-pin external power connectors)

but that's just for one, will the corsair cxm750 be good?

Make sure you have a 12Volt Rail with around 65 AMPs and you're good More is always better though 

CPU: Intel Core i7 4790k CPU Cooler: Corsair H100i Chassis/Case: Fractal Design Arc Midi R2  Motherboard: Asus Z87-Deluxe RAM:  Team Vulcan 2x4Gb(2133Mhz)  Video Card: Asus 7970 Direct CU II Custom Rom (150% Power, 1100 core 6Ghz Memory)  Power Supply: Fractal Integra R2 750 Watt  Keyboard: Cooler Master Quick Fire Rapid (MX Blue Switches)  Mouse: Corsair M90 Storage: SX900 128Gb, Seagate 1TB 7200RPM, WD Green 1TB 7200RPM   MY OLD BUILDLOG


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