I am building a new system. Probably a AMD Opty170, Geil One mem, 4 16mb buffer HDDs in Raid 0 and my trusty X800GTO. I have built a water cooling system and am using a swiftech CPU Pelt block 226 watt, and a XG 600watt external Power supply. My PS has 2 rails one with 18A and the other with 22a. I can devote the whole 22A rail to the pelt. I think I only need 18.9A at 12v. I am also using a water cooler to cool the water line to about 45-55 F. Think Il be ok?