i have an 8 month old Thermal Take TR2 550W W0134 psu. I am thinking of updating my computers cpu, ram and grapchics card to a AMD Phenom II 550, Geforce GTX 260 Core 216 and 4 GB of PC2-800 RAM. My questions are will it work and for how long if it does.
I would just try it. Even your monitor size and resolution will effect the power requirements. Some folks are using 24-32 inch monitors now. Frys has the antec basiq 550w for $29.99 today only; wouldn't be much difference, but a better brand. It has 22-25 amps on each 12v rail.