PSU for 2X 7950s + 1X 7970

coldbreeze16

Honorable
Oct 30, 2012
17
0
10,510
I'm making a litecoin mining rig with 2X 7950 and 1X 7970 or whatever similar I can scavenge from the used market. The cards would be overclocked and undervolted slightly where possible and attached to PCIe risers. No hdd/dvd rom/monitor etc. I'm thinking about this following board with AMD sempron 145.
http://theitwares.com/index.php?route=product/product&path=1_61_8&product_id=1472

So I was wondering if a Corsair TX 850 would cut the deal since there's no hdd etc or get the other option I'm considering
http://www.snapdeal.com/product/seasonic-1050w-modular-power-supply/1379212?pos=0;15

Please remember the price difference is almost twice between the two. I have plans for future expansion for using the two other 1x PCIe slot with two more 7950 for which I will get a separate PSU.
 

coldbreeze16

Honorable
Oct 30, 2012
17
0
10,510
Diablotek/Thermaltake whatever isn't available in India. All I got is Corsair/Cooler Master/Seasonic/Antec to choose from. Have to choose from among them. I was just suggested to get AX 850 or HX 1050.