- 73 months ago
I have an old office machine I'm converting to a low end game rig for a kid.
It has a 300 W rated PSU, with a couple of 12 V rails spec'd on the sicker. There are three. A "12V" and a 12V1 and 12V2.
I'm considering a graphics card that recommends 300 W and 18A on the +12V and none of the ratings of the +12V's = 18 A by themselves.
They aren't really grouped together on the sticker in a way that makes sense to me, so my basic question is - can I add the ratings of all the 12's together to satisfy the 18A requirment?
And I just don't know how to tell what I'm looking at is a single or a multiple +12V rail config. (I could take a picture if needed).
*if i have multiple, which it appears to have, then how does the PSU know which connector is which, does it "intelligently" route the lower amps through or trace to the lower amp device on the connectors?