Can an EVGA 850W Gold PSU crossfire 2 R9 390s?

sevenpioverthree · Dec 29, 2015

My specs are:
ASUS Crosshair V Formula-Z
FX8350 black edition @ 4.2 GHz
4x4GB DDR3 1600 CL9 RAM
h100i gtx cooler
1x SSD, 1x HDD

I ask because looking around people say 850 is the minimum, I'm not exactly running a lot of stuff relative to what I see around. Just wanted some second opinions

Also wouldn't mind getting some personal opinions on which R9 390 to get

viNclinedv · Dec 29, 2015

I tier 1 850w PSU should work, or a 1000w tier 2 or 3 would be good. (http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html) The MSI twin frozr R9 390s are amazing but they are sometimes hard to find in stock. The XFX R9 390 Black Edition would be another good choice (my gpu) or you could get the standard edition for a little less.

BadActor · Dec 29, 2015

I ran your numbers and came up with 806 watts, which would only leave 44 watts of headroom. I really think you need to go up. Your system probably won't draw that much all the time, but for me it's a little to close for comfort.

ak47jar3d · Dec 29, 2015

Your processor will consume about 150w on full load. Your two 390 will consumer about 540w between both cards on full load. That's 690w. Add another 50w for that other parts and should be able to run both cards just fine.

http://www.amazon.com/Sapphire-Radeon-Version-Graphics-11244-00-20G/dp/B00ZGL8CYY

sevenpioverthree · Dec 30, 2015

Is it bad that I'll have to use every pci-e cord that came with my psu to hook up all the graphics cards?

Could I use this adapter to use 1 less cord?

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Can an EVGA 850W Gold PSU crossfire 2 R9 390s?

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