GPU Power Consumption???

W

WWS

New Member
Im building a SLI gaming machine, I am currently piecing components together. what I need to know is how many amps each 7800GTX GPU will Consume. I am getting at least a dual PCI-E Capable power supply, so each card will have its own 12V rail??? (PSU = silverstone zeus st65zf 650 Watt).

Please Help
 
Im not too sure how much ampage the cards will comsume but i do know you don`t want to drop the ampage under 24amps !!!

But by the looks of the PSU that should be find to run that sort of config !
 
If I need at least 30A for an SLI setup on one rail, then if the PSU has two rails for PCI-E at 15A each then I sould be fine. Am I thinking about this correctly??
 
WWS said:
If I need at least 30A for an SLI setup on one rail, then if the PSU has two rails for PCI-E at 15A each then I sould be fine. Am I thinking about this correctly??
Click to expand...
from my uderstanding yes
if you look at PSU 101 and the example of good PSU's there are some where it has 2 or more 12V rails and when you add them up its higher or equal to 30A
 
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