I see plenty of information telling my decent 850 watt (
XIGMATEK MC NRP-MC851 850W) will support SLI with two
570 GTXs. However, it's 12+ rails distribution makes me think otherwise:
Now I know other items such as my CPU (
i7 950) change things. My
GTX 570 needs two different six pin +12 connections (38A total recommended). Right now I'm running
12V4 and its probably overkill. However, if I add a second GTX, how many amps do I need PER 6 pin connection?
For example if bf3 does not fail I plan to over overboard and get 2
590GTXs. I will need to know how to figure out how many amps per 6 pin, not RAIL. For example, if I have 30 amps on one 6pin#1 and 18 amps on the second and the requirement is 50 amps, I could run a single one but if both need to be 50 amps, finding a power supply with 50 amp rails isn't easy. I know the requirement is based on the system whole but how do I find out the requirement per 6 pin so I have a rough idea how much I need?
Per pin amps is important because
12v4 only have single 6 pin connections. Could just use a "Y" adapter?