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Topic: Power Requirements for six (6) HD 5850s? (Read 381 times)

newbie
Activity: 57
Merit: 0
April 25, 2013, 03:24:58 PM
#3
Thanks - that is great information.  I'll build it slowly, adding one card at a time and running it for 24 hrs before adding another one.

If wattage gets tight, I will dedicate the X-1250 for the GPU cards and get an 'average' PSU for the board\CPU\SSD, etc... I'll try using x1 -> x16 extenders w\molex (attached to the X-1250) if I end up using a dedicated PSU configuration.

newbie
Activity: 10
Merit: 0
April 25, 2013, 02:37:13 PM
#2
According to this article they recommend having 200 Watts per card.
So you would definitely want a least 1,200 watts give or take. You could try it with that power supply.
newbie
Activity: 57
Merit: 0
April 25, 2013, 02:09:31 PM
#1
I'm designing a rig to run six Radeon HD 5850s.  I got the GPUs dirt cheap and want to put them to use  Grin.  I have a Seasonic X-1250 PSU and was wondering if that would support the entire rig? I plan on using a low-consumption MB\CPU with SSD drive to minimize outside power consumption. The MB I plan to use is a GIGABYTE GA-990FXA-UD5 (which I have already read on here can be used with six 5850s simultaneously).

Can someone fill me in on what wattage a 5850 card can pull when under heavy load? (and provide suggestions for clock speeds?)

Thanks in advance.
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