Should 650w..

be enough for;

GTX275
i7 920 D0
+ watercooling?

are you on about growing weed?

Edited by invincible (Forum Super Moderator): Please don't post pointlessly

Yyyyyes.

gd stuff, according to newegg psu calc it should require about 620w, so that should be fine

Should be fine. What brand is it?

Corsair :P, was gonna get 750w but instead got the 650w modular.

Will be perfect.