Shommy

Distinguished
May 17, 2011
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18,510
I am wondering if a corsair hx850 will run sli evga sc GTX 570 sufficiantly?

Ill have 1 hd

Intel 2600k

8gb ddr3 1600 ram
 

ghnader hsmithot

Distinguished
http://www.guru3d.com/article/geforce-gtx-570-review/8
GeForce GTX 570 in SLI

A second card requires you to add another 225 Watts. You need a 850+ Watt power supply unit if you use it in a high-end system (1 KiloWatt recommended if you plan on any overclocking).
For each other card (3-way SLI) that you add, just add another 225 Watts and 20A on the 12V rails as a safety margin. What would happen if your PSU can't cope with the load? Here are some pointers:

bad 3D performance