Which power supply for dual R9 290X Crossfire?

Patroclo · Nov 2, 2013

I have a Corsair HX750W, but I guess it won't be enough for the 2 beasts... and I'm not that happy with it because after less than 1 year it started being noisy (the fan I guess) with the PC turned off. A true torture.
Is the AX1200i series affected by the same issue? Any other advices?
Thank you.

IAMEXTREME · Nov 2, 2013

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207011
XFX Core Edition PRO850W
+3.3V@25A, +5V@25A, +12V@70A, -12V@0.5A, +5VSB@3.0A

rolli59 · Nov 2, 2013

Well the HX750 would handle it so have you tried RMA since it is covered by warranty for 5 years!
Total system load with 2 x 280X CF does not reach 600watts gaming and not 700 watts stress testing http://www.anandtech.com/show/7457/the-radeon-r9-290x-review/19

Russell Crowe · Dec 23, 2013

rolli59 :

That 850 watt 80+bronze listed above is the same one I just bought, except mine is a Corsair. I went with a 280x by MSi as well, with plans to eventually crossfire with another. Glad to hear this psu will be more than enough! New to the forum and building in general so I apologize if this is off topic but rolli how do you like the crossfire 280's?? Will I be able to run BF4 at ultra and what kind of fps can i expect with one card vs two? Also if I did want to setup eyefinity would I need two of these and would the 850w psu still be enough?

AMD FX-8350
Corsair H100i
Trident 16 GB DDR3-2400
Asus M5A97 R2.0 Motherboard
Corsair TX850 80+ bronze semi mod
MSi 280x

rolli59 · Dec 23, 2013

Yes the 850watt is enough, but I would never run a CF setup on a board with the second slot stuck at X4 speed.

Russell Crowe · Dec 24, 2013

rolli59 :

Derp! Wow...told you I was new to all this hahaha. Seriously was just about to drop the cpu into the mobo when I got your response. I had a friend put together a parts list on pcpartpicker. I did a ton of research on gpu's, cases, and monitors but skimmed over the mobo; guess I just was trusting his choice there. I called him last night and told him and he realized he'd made a mistake.

That RAM was sorta an impulse buy as well because it was on sale for 112 (that very night it went back up to like 179), but come to find out most motherboards don't even support 2400 ghz RAM, but some do allow it to be OC to 2400. I have since boxed up the mobo and am sending it back to newegg on thursday and instead ordered the ASUS M5A99FX PRO R2.0.

Rolli I really can't thank you enough. You saved me massive frustration and disappointment down the road. I've spent hours and houuuuurs reading and trying to learn as much as I can about all this stuff, but when trying to build in a hurry there are bound to be mistakes made I guess :/ I have a few more questions and you seem to be very knowledgeable and enjoy helping others, but don't want to "hijack" this thread or whatever. Any way to pm you on here or email?

rolli59 · Dec 24, 2013

Russell Crowe :

rolli59 :

Derp! Wow...told you I was new to all this hahaha. Seriously was just about to drop the cpu into the mobo when I got your response. I had a friend put together a parts list on pcpartpicker. I did a ton of research on gpu's, cases, and monitors but skimmed over the mobo; guess I just was trusting his choice there. I called him last night and told him and he realized he'd made a mistake.

That RAM was sorta an impulse buy as well because it was on sale for 112 (that very night it went back up to like 179), but come to find out most motherboards don't even support 2400 ghz RAM, but some do allow it to be OC to 2400. I have since boxed up the mobo and am sending it back to newegg on thursday and instead ordered the ASUS M5A99FX PRO R2.0.

Rolli I really can't thank you enough. You saved me massive frustration and disappointment down the road. I've spent hours and houuuuurs reading and trying to learn as much as I can about all this stuff, but when trying to build in a hurry there are bound to be mistakes made I guess :/ I have a few more questions and you seem to be very knowledgeable and enjoy helping others, but don't want to "hijack" this thread or whatever. Any way to pm you on here or email?

Little red envelope on the left under my hammer and you can PM!

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Which power supply for dual R9 290X Crossfire?

Patroclo

Honorable

IAMEXTREME

Honorable

rolli59

Titan

Russell Crowe

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rolli59

Titan

Russell Crowe

Honorable

rolli59

Titan

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