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XFX GeForce 6800 XT 128mb agp

post #1 of 8
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new egg tells me it needs a 450W PSU, every one else tells me a 300W. what one is it??????
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Sputnik II
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post #2 of 8
I believe that 300W is the minimum. They recommend 450W+ though. I use my 6800 OC AGP on my Ultra 500W PSU, it works just fine, btw.
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post #3 of 8
hmm if newegg says its 450W PSU, they are definitely wrong. Even for the new 8800GTS graphic card, the minium PSU requirement is 400W. 300 W is suffice for 6800 XT.
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post #4 of 8
The wattage alone can be deceptive, the 12v+ rai;(s) total amperage is a great indicator. Single voltage hungry vid card should get a PD with about 24-26a total in the 12v+ rail(s)
    
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post #5 of 8
I would worry more about the amperage on your +12V rail(s) than the amount of wattage your entire PSU puts out.
For a 6800XT AGP I would say that 22-25A on the +12V rail is fine.

Beat by The Duke.
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post #6 of 8
Quote:
Originally Posted by The Duke View Post
The wattage alone can be deceptive, the 12v+ rai;(s) total amperage is a great indicator. Single voltage hungry vid card should get a PD with about 24-26a total in the 12v+ rail(s)
/Offtopic sry
hey Duke lets say that 36A on 12V+ rails is required to run 8800gts. I have 3x 12v+ rail and each of them has around 18A, so i have the total of 54A rite? or does 36A means on each rail?
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post #7 of 8
Here are your PSU specs:
http://www.antec.com/specs/NeoHE500_spe.html

The maximum output on your +12V rails is 456W.

Amps = Watts/Volts = 456/12 = 38A
The max amperage on your +12V rails combined is therefore 38A.

That's how I determined that my max amperage was 33A, not (12V1) 17A + (12V2) 19A.
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post #8 of 8
Thread Starter 
thx all
Sputnik II
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Sputnik II
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