Tomorrow I am hoping to get my hands on another PNY 560 Ti OC2(First one works great). I will run this in SLi and enjoy BF:3 and MW:3, and be ready for D3. My power supply is something that's confused the heck out of me since I first got my original 560 Ti. I figured I had enough amperage on the 12v rail that it is connected to (multi-rail PSU). However I want to make sure that I have everything squared away so i'm not looking at a power issue (Annoying to return the 560 Ti, or upgrade PSU...). So here's the facts as I see them and the accompanying info.
A 560 Ti requires at least 30A (amps) on the 12v rail (Since there's two 6-pin connectors and my PSU has 4 6-pin connections/2x2).
http://www3.pny.com/GTX-560-Ti-1024M...P2973C451.aspx
My power-supply is a 750 watt PSU used by Alienware (I forget real manufacturer but they are one of the largest and most respected). It features 4 6-pin connectors and each 12v rail supplies 18.0a (amps). I'm thinking combined that's 36a can be supplied via 2 rails (although a bit lower might be more like it).
http://www.geeks.com/details.asp?inv...AB-1-R&cat=PWR
Now I know that the 560 Ti only requires a 500w PSU and 650w for SLi is just about the minimum, but do you think my PSU has it what it takes to hack it?
(PS: Only reason I refuse to purchase a new PSU is price (I have other things I could be spending $100+ on) and effort (My current PSU is pretty well threaded through the case so I can hardly see what connections there are, to take that apart would be annoying. To re-thread all that through the case would be time consuming and annoying as well))
A 560 Ti requires at least 30A (amps) on the 12v rail (Since there's two 6-pin connectors and my PSU has 4 6-pin connections/2x2).
http://www3.pny.com/GTX-560-Ti-1024M...P2973C451.aspx
My power-supply is a 750 watt PSU used by Alienware (I forget real manufacturer but they are one of the largest and most respected). It features 4 6-pin connectors and each 12v rail supplies 18.0a (amps). I'm thinking combined that's 36a can be supplied via 2 rails (although a bit lower might be more like it).
http://www.geeks.com/details.asp?inv...AB-1-R&cat=PWR
Now I know that the 560 Ti only requires a 500w PSU and 650w for SLi is just about the minimum, but do you think my PSU has it what it takes to hack it?
(PS: Only reason I refuse to purchase a new PSU is price (I have other things I could be spending $100+ on) and effort (My current PSU is pretty well threaded through the case so I can hardly see what connections there are, to take that apart would be annoying. To re-thread all that through the case would be time consuming and annoying as well))