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i7 + 5970 + GTX295 on a HX650?

post #1 of 30
Thread Starter 
Hi there.

I'm thinking of picking up a GTX295 I can get for a decent price, but I have a horrible feeling I can't power it with my HX650, although; I ran the system in my sig, with a 9800GX2 as a folding card (which is also 6Pin +8Pin), and it was fine. I even ran 5970 + 470 folding for a while, which confuses me.

It's a dual PCB 295 so the power consumption higher than the single PCB (iirc).

So, is this a good idea, or a terrible idea?

    
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post #2 of 30
I sure as hell wouldnt run the 5970 + a gtx295 on a 650w psu.... Your asking for trouble. I would have atleast a 900w+ psu for that, especially if SMP flding too.
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post #3 of 30
You don't need a 900w+ psu for this an 850w psu should be fine.
post #4 of 30
Thread Starter 
I wouldn't SMP fold if I had the 295, purley on the 295 and the 295 only.
    
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post #5 of 30
not a good idea a 295 draws bout as much as a 5970 so it would be like running 2 5970's on your 650
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post #6 of 30
Agreed, you may want a 850 watt to power the two. Dual pcb does draw more power, albeit slighty more.
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post #7 of 30
Thread Starter 
Hmm, I thought as much.

I do have a spare 520W PSU lying around and I could just dedicate it to the 295, can't really afford a brand new PSU right now.

Although I read this, and their test setup using an i7 965 and 6GB of RAM, and it pulls just under 400W at the wall, so it appears I have 250W~ of headroom?

Do tell me if I misinterpreted that, I'm not the best on PSU's.
    
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post #8 of 30
well according to the what power i need for my rig. its states. @ 100 load(i do alot with folding) I7 oced to 4 ghz and 480 + water cooling, says 800 watts. Lol i was sli with 480s on this rig too. The power you got is Underpowered , 850+ watt power.
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post #9 of 30
Quote:
Originally Posted by SmokinWaffle View Post
Hi there.

I'm thinking of picking up a GTX295 I can get for a decent price, but I have a horrible feeling I can't power it with my HX650, although; I ran the system in my sig, with a 9800GX2 as a folding card (which is also 6Pin +8Pin), and it was fine. I even ran 5970 + 470 folding for a while, which confuses me.

It's a dual PCB 295 so the power consumption higher than the single PCB (iirc).

So, is this a good idea, or a terrible idea?

I wouldn't. Even if it works, it must be very close to max. Get yourself a quality 850W (Corsair HX or AX series/ Seasonic X series good).
post #10 of 30
Silverstone strider plus 850w
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