How to interpret amp spec on 12v rail?

R

Robert P

Member
Just got a Thermaltake 600w PSU. Among the specs listed is +12V1 23A, +12V2 20A.

Running an NVidia GeForce GTX 460 - system requirements are 24A on the 12V rail.

Do the amps on +12V1 and +12V2 get added together for total amps? I.e. is this enough PSU for this video card? They make the claim that it "supports the latest NVidia/AMD Graphics cards". There are more powerful and power-hungry cards than this GTX 460 which is several years old.

Follow-up - looking at the Thermaltake site, they show different specs for this unit. Shows 32A on +12V1 and 24A on +12V2.

So should I believe the label on the unit or what's on the website?

http://thermaltakeusa.com/Product.aspx?S=1172&ID=1898#Tab0
 
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The specs on the side of the PSU shows what the thermaltake site shows. Your supply has plenty of power to use a 460.
 
Believe the label on the actual PSU. I'd be worried on that power supply, since none of the rails are up to spec for the 460.

And actually, compared to the new 660, the 460 uses more power and is slower.
 
Not a big fan of Thermaltake, but you will be fine. The system requirements of 24A is what they recommend for the minimum of the whole average system. And no you dont just add the rails up unless its a true multi rail, which this is not. It has a total of 48 amps. on the 12V rail.
 
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