Okay, i had a Antec 480 watt power supply (true blue) but it went dead, i was really mad, Antec said it would cost 25 bucks to ship it to them so they could check it out..heck for 84 bucks i can get a brand new one with sleeving (newer version) on newegg. So i started using my old 350 watt PSU. This had some problems 1) Did not have enough power connections for 3 hard drives, 2 cd/dvd drives, 5 extra fans (and cpu fan which uses mobo header) and 2 neons. Much less the load of the neons alone (with cpu) would result in computer shutoff.. SO i dug out a old 200wat MINI PSU from a box machine, about 4inches by 5inches. And hooked the green wire, to a black wire (ground) which allows you to use the powersupply without any motherboard connection. I now just stuff the mini PSU in a extra HD bay holder in case...and run neon's and fans off their very own Powersupply unit seperat from system devices. So its liek having 550 watt again lol..