hi, i have recently brought a BFG 7800gs oc agp, and figured that my psu isn't upto scratch, so i've decided to purchase a new psu, but isn't sure if i'm looking at the right ones so that the new graphics card and current system will run smoothly. here are my system specs: GA-8I848P-G northwood P4 2.8ghz 1GB ddr-sdram 2x hard drives 1 dvd drive 3x fans 7800gs oc agp the current psu i'm looking at is: http://www.antec.com/specs/SP500_spe.html
please provide advice/comments if this psu is sufficient, as the minimum specs recommended by the graphics card is 400w with current ratings on the 12V rail at 20A, but since this is dual 12V rails i'm not sure.
More abouturgent 7800gs
It is more than adequate for your system since it can provide a total of up to 36 amps on the 12v rails.
500W is MORE than enough. My current rig (see sig) is powered by a TT 550W...does it like a champ.