Will this do?

Solution


600 watt will do the job just dont OC the card .

Gtx 660 x 2 TDP = 140 watt x 2 = 280 watt.
CPU 95 watt TDP
Every thing else 100 watt maximum.

So 600 watt is okk for sli but cx series as you know is a crappy one so its better you change the PSU in future.

http://www.realhardtechx.com/index_archivos/Page362.htm

As you can see a 620 watt PSU is recommend in this site for gtx 660 sli so if you don't oc the card you should be fine.


600 watt will do the job just dont OC the card .

Gtx 660 x 2 TDP = 140 watt x 2 = 280 watt.
CPU 95 watt TDP
Every thing else 100 watt maximum.

So 600 watt is okk for sli but cx series as you know is a crappy one so its better you change the PSU in future.

http://www.realhardtechx.com/index_archivos/Page362.htm

As you can see a 620 watt PSU is recommend in this site for gtx 660 sli so if you don't oc the card you should be fine.
 
Solution


m8 i get the best psu i can and i dont need another ever unless it breaks NOT LIKELY BECUASE THE PSU IS NOT WORKING HARD also i know when i buy a psu i future proof EG if i get two super high end gpus ill be able to power no problem