Power Supply Confusion Ok, we have all heard that when your running Powerful ATI cards 9800 and above, Nvidia cards 5,6,and 7 series, soundcards, multiple HDs, Disc Drives..etc that you need 350w 400w or better. Certainly, when one is custom buildin a machine, you should get these high or higher power supplys. But my question is: What about for Dells, HPs, or Gateways? For instance, I had bought in Jan 2004 a Dell Dimension 8300 series. Now this is the second to top of the line series, just before the XPS. Now this system came with a 250W Pwr Sply, and Dell Support says the max I can get for 8300 is 305W(thats 305 NOT 350). So I DID. Now this machine comes with slots for 2 HDs, two smaller bays-(floppy for ex,) 2 disc drives, 5 PCI slots, an AGP 8X 3.0 slot, P4 with HT, and 4 slots for dual channel memory, 4 1024s for 4GB TOTAL. Is this sufficient? I have Radeon X850 PRO, Audigy 2 ZS, 4 512s for 2048, 2 HDs, 2 disc drives, a floppy, a modem, and a 3.0GHz P4 w/HT. I guess my question is should these pre built machine be able to handle more items since they are pre-built, with a MAX power supply that comes with, more that a custom? I cant belive Dell would make a case that supports all this, and the max power supply being 250-305. :blackeye: I also know that even the XPS come with 400W or 450W. And they can support even more items, like SLI, dual graphics.