The GTX 660 states
Minimum of a 450 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 24 Amps.)
Total Power Draw : 140 Watts
and my PSU
Meets Intel v2.03 enhanced +12V
Over-voltage and current protection +3.3V;+5V;+12V
+3.3V 20A; +5V 32A; +12V 32A; -12V 0.5A; +5VSB 2.0A
So it should be able to power it but I assume its not..is this correct?