PSU powerful enough?

your PSU is surely enough to run a singly x1950xt, b/c a single r580 gpu requires about 30amps off the +12v rails. I'm not familiar with Crossfire setups or any of that jazz, but one would assume you'd need bigger supply with enough amperage to cover both cards.

I think this snazzy 2000w PSU would work dandy thing deserves a post for itself.

but in all seriousness i think you might need a new one, but i'm no where near and expert so lets hear what others have to say

I am not familiar with JEANTEC - so I went to the following link to see how they were rated:
http://www.xtremesystems.org/forum [...] p?t=108088

They were not even on the list. Oh well.

One thing you might want to do is to take these out of Crossfire mode, and run benchmarks on each card individually. Something like 3DMark. Then set them up as crossfire and benchmark them together.

The thought here is that your PS should power one of these badboys just fine, but there is a question on the crossfire. Additionally it will check to make sure that both cards are running at the same level and that there isn't any obvious differenced in their individual performance.

The big thing to look for - if there is no increase in the performance in crossfire mode - then you likely have a problem with the PS. You can get a simple 300W 5.25 drive bay PS and power one of the cards with this (just a suggestion.)

If your performance does increase - but very marginally (NO - it isn't a linear thing, but you should get about a 40%+ improvement) then you may also have a power issue.

Good luck.

Just ordered myself a galaxy 800w psu - it'll just squeeze into my case.

Couldn't find the galaxy 1kw in stock, which is why i got the 800w btw, also it may stop me buying crossfire r600's when they come out....hopefully...

Thanks, and the following link is for those who have helped (change the yourname part of the url to your name )
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