My Thermaltake TR2 430w is not cutting it, indicated by random shutdowns when gaming or playing 1080p video. I am no expert in power supplies, but can't you just add or replace the capacitors with better ones and get more wattage? Capacitors are cheap, and I am working on a sub-$10 budget here so cannot get a replacement supply. Sorry if I sound kinda dumb here, but I really have no idea what I'm doing with power supplies.