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HX1000 and a GTX590

post #1 of 5
Thread Starter 
May be getting a hold of a GTX590 as an upgrade.
I have a HX1000 PSU which is pretty much 2 500w PSU back to back iirc. So, I would place the GTX590 on the 2nd 12v rail so it on its own but I have heard that they can suck up quite a bit of power and exceed the spec TDP.

Now my question is....can I power the card with a plug from each rail? So its got both of the 500w PSU feeding it.
Im just worried as I have quite a few fans, pump, drives etc on the 2nd rail also.
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post #2 of 5
I think you can do that.

But the GTX 590 uses 365w stock 607MHz core, and you might get it to 700MHz core with an overclock. Might push it to 400w at most.

The one half of the HX1000 will be 40amps x 12v = 480w

So I think you'll be ok using one 12v rail for your GTX 590.
    
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post #3 of 5
1000w PSU will power your rig with as many fans as you can imagin and 2 GTX 590's. You will be fine with just 1.
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post #4 of 5
you're fine with that psu, but how can you tell which 6+2 is on which rail headscratch.gif?
    
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post #5 of 5
Thread Starter 
Yeah maybe, just that I read somewhere last night that a guy had trouble running a stock 590 on the 2nd rail of a HX1000.

Hmmm, I really want a dual GPU card but cant afford a GTX690 redface.gif
I can scoop a GTX590 for an affordable price, either that or Gainward GTX 570 GS SLI.

Anyone ever tried to run a GPU from separate rails like this? whats the risks etc?


Quote:
Originally Posted by ShortySmalls View Post

1000w PSU will power your rig with as many fans as you can imagin and 2 GTX 590's. You will be fine with just 1.

Yeah but do you know that my PSU is not all 1 12v rail, and I mean its really not all on 1 rail, HX1000 is 2 separate rails and load balancing does need to be correct, if it was just all 1 big 1000w PSU then yeah...for sure it be no probs tongue.gif its 2x 500w PSU back to back, bit of a weird one.


Quote:
Originally Posted by Vlasov_581 View Post

you're fine with that psu, but how can you tell which 6+2 is on which rail headscratch.gif?

12v rail 1 is hard wired, 12v rail 2 is modular. thumb.gif
All molex etc are also modular and also on rail 2 that's why im concerned as I have 3 HD, 1 SSD, 1 pump and a gazillion fans nd stuff biggrin.gif
Edited by superj1977 - 6/3/13 at 6:05am
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HX1000 CM-Stacker 832 Flipped Naos 3200,G5,G400,G400s, G300, Kone+ Razor Destructor and Steelseries Qck 
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