I have an old 420w OCZ PowerStream that has been running since 05. Recently my 6600gt has died within my old system. I was wondering if this PSU can still power something like an Ati 4830? Or possibly a 9800GT? The psu has only one 12v rail with 30amps powering it. I'm concerned about capacitor aging but I assume that my old PSU is built extremely well. Damn thing cost me around $140 at the time.