Dual PSU setup - what should power what?

[BTYee29]

Hi everyone,

My system has been having cutting off intermittently, and disconnecting components increases stability, leading me to believe my PSU cant cut it. I'm going to connect a 2nd PSU I just got from RMA to lessen the load. What I'm wondering is what I should connect to each PSU.

Here's the breakdown

PSUs

Corsair AX1200
PC power and cooling 750w silencer

Components
Rampage 3 extreme with 980x @ 1.425 vcore
3 GTX 570 @ stock
10 Ultra Kaze 3k rpm fans running at full, connected to 2 rheobus fan controllers
1 160gb Intel G2 SSD
2 300 gb Velociraptors
1 750gb seagate 7200.10
1 2tb Samsung F3
2 2tb Barracuda LPs
1 Swiftech MCP655 fan

I was thinking 2 570s, and the fan controllers on the 750w,

or the Mobo and all the hard drives on the 750w

and the rest on the AX1200.

Any insight into the proper way to set up this Dual PSU scheme would be much appreciated. Thank you.

 

[Blue Fox]

Your Corsair power supply is more than adequate and you do not need a second power supply.

 

[Tsumi]

You don't need a second power supply. The AX1200 is enough to power 4 GTX 580's with that CPU.