I'm not exactly sure what happens when you "max out" a power supply, but I run a thermaltake pure power 420w 5V40A 12V18A and 3.3V30A rails. In this particular system I run (from top to bottom... lawl): Dual layer DVD burner 250GB WD IDE drive P4P800E-Deluxe mobo Prescott Pentium 4 3.2 (usually runs at 3.6, but turned it down recently) 2gb (512x4) pc3200 x800pro Audigy 2zs platinum (with bay actually using the optical to my amp) 2x250gb seagates sata in raid0 2x200gb WD IDE's Aftermarket coolermaster fan for p4... doesnt really cool much more though, gave my stocker away 1 mini fan blowing down all the ram zalman cooler for x800 3 various 80mm fans (I also have another 200gb WD drive I use to backup my important shit (all my ripped cd's in flac[120gb]) that replaces the dvd burner when its time to back up. So yes I have almost 1.5TB of storage, I just bought the 250gb WD drive today because all the other drives had less than 900megs free... I dont use a page file either. So I'm moving stuff to free up about 15% space on all the drives so I can atleast defrag. I mean, games still run fine and all, but some things take a long time to load. Like from a cold boot in windows ill load up winamp after everything is loaded and it takes like 10 seconds to load... Warm boot is a little different, this sytem acts funny sometimes. Cold boots sometimes freeze up on "loading personal settings" too CLIFFS: High power vid card and processor, 4 sticks of ram, 5 hard drives, dvd burner and various other shit with a 420W psu. Is it enough power? Could it be throttling my system? My system seems to perform fairly poorly for its specs lately, it could just need a defrag because I havent done it for a while, but its not like the whole drive is fragmented.