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535W for GTS 250 Card Requires 26A...

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April 2, 2009 11:22:30 PM

I have an Enermax EG565P-VE with dual 12V rails at 22A each.

I just purchased a BFG GeForce GTS 250 card and the requirements of the card says:

475W PCI Express-compliant system power supply with a combined 12V current rating of 26A or more.

Will my PSU support it? does combined mean 22 x 2 = 44A ?

or do I need a PSU with dual 12V rails at 22A each?

Thanks.
a c 1382 U Graphics card
April 3, 2009 12:26:15 AM

The psu is big enough but it is not 44Amp total it is 22amp max each of the 2 rails but 34amps combined.
April 3, 2009 12:48:16 AM

dual 20 should be good make sure you have each rail in one of the plugs

if the psu is cross connected your find

the psu is too small for most systems you system is 400w and you have a 80-85% max

you want 60%

400/.6-.7 = 700
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April 3, 2009 7:09:18 AM

dragonsprayer said:
dual 20 should be good make sure you have each rail in one of the plugs

if the psu is cross connected your find

the psu is too small for most systems you system is 400w and you have a 80-85% max

you want 60%

400/.6-.7 = 700


Are you psychic? The only thing you know about his system is the GPU (which is not terribly power hungry). A 500W PSU is plenty for most systems.

And you will not have the option of moving a PCIe connector to a different rail.
a b U Graphics card
April 3, 2009 4:03:32 PM

You'll be fine with the Enermax. I've been running a 9800GTX+ (GTS-250 is the same, just renamed) on a Corsair 450W (single 34A rail) for quite a while.

rolli has it right.

!