just got an asus a8n-sli board and im running 2 6600gt's , my old atx psu is 550w but only has the 20 pin connector and the 4 pin , but doesnt have the 4 pin that runs next to the 20 pin. should i realy get a new psu everything seems to work fine without it ? or can you get an adapter for it
Why haven't you overclocked your rig
It's your duty to do so 
will be playing with it this week when i get my head around HTs because i only have value ram