Originally posted by: RajunCajun
Hey Zodd
I don't think you'll have any problem running either card will Dell's ps. I have a 2 year old Dimension 4500 with that 250W ps - running 2 hard drives, 2 optical drives, FX5900 (requires that extra molex be plugged in), floppy drive, Audigy 2, WinXP + other peripherals. I've never had problems, not even a warning from ForceWare showing not enough voltage.
I did some research on this very issue BEFORE buying the FX5900 last Christmas. It's not that Dell under-rates their ps - the number that's given is AVERAGE output. So, that 250W rating is more like a 350-400W PEAK output.
BTW, be EXTREMELY careful is you ever change the power supply. It looks like and is identical to a normal ATX ps, but the wiring through the connector is different from ANY other ATX ps. You can cook your system is a second if the wiring is not identical!
Hope this helps!
Thanks! That helped a lot!