Mobo, GFX compatibility and power supply

Micheal Rodriguez

Reputable
Oct 16, 2014
4
0
4,510
I have an ASUS M5A88-V EVO, AMD Phenom II X4 965 (125W), GTX 280 ( 550 W) with a XIGMATEK Tauro Series CPA-0700BDD-F51 700W power supply.
From my understanding I just needed to add that Watts needed and make sure that the power supply can support the components.
I am planning to buy GeForce GTX 750 (300W) because of the games that i would like to play. Since will have an extra gfx card i would use that for PHYSX. I would need atleast 750 Watts of power from just the gfx cards alone.
I read on the reviews for my power supply that someone had an SLI 660 Ti which needs 450W each. Which means he's going over the 700 maximum Watt for the Power supply.
Can I still use my power supply for my set up including the GTX 750 or do I have to get rid of the GTX 280 or buy a new Power supply to accomodate both.
Also can I use the GTX 280 specifically for PHYSX or do I need to SLI with the GTX 750. Can I SLI the 280 and 750?

Thanks in advance