Power requirments for XFX 8800GT

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afgextreme

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Oct 23, 2007
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Hey people do you think an Asus 550 WATT power supply is good enough to power up 2 x XFX 8800GT in SLI ? or will it be good enough just for one?
would appreciate your answers

thanks
 
Joined
May 3, 2006
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I have never seen one of these require more than that, however the card should tell you it's minimum requirements somewhere.
 
Joined
Jul 19, 2005
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11,670
Video card manufacturers like to keep the power requirements for their cards a big secret. The only place I can ever find any requirements for nVidia cards is at the eVGA site. This is what they had posted as the requirements for the e-GeForce 8800GT 512MB.

Requirements
Minimum of a 400 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 22 Amp Amps.)
Minimum 450 Watt for SLI mode system.
(Minimum recommended power supply with +12 Volt current rating of 24 Amp Amps.)

The only Asus 550 watt power supply I could find listed at Newegg was the Asus Atlas A-55GA ATX12V 2.01. I don't know if this is the power supply you have or not, but if it is the specs at Newegg indicate it has 18A on both the +12v1 and +12v2 rails.

If a power supply is wired to ATX standards, the +12v2 rail should not be a factor in determining available power for system components since the +12v2 rail is SUPPOSED to be reserved to power only the processor.
 
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