Hello, i have been trying to get a good idea of what i will need to upgrade for a 3 monitor setup using nvidia surround in 3D. I have 1 GTX 580 and was going to upgrade to 2 for sli to support the 3 monitors but i dont know if a 750w Power supply will handle it
Lepa 750w modular power supply
4x PCI Cabes (leads me to think it has the cables to support sli so it should work)
Im also powering a i7 2600k, 2 hard drives, and a blu ray player
The 750W version has four 6+2 pin PCIe power connectors and 62.5A on the 12V rails; it is electrically sufficient to run two GTX580s in SLI. Overclocking of the CPU or GPUs has the potential to quickly push the PSU too hard. Considering the 650W PSU burned when overloaded I would careful about any OC on the PC when running the GTX580 SLI.
I'm in the same boat as Rugger on not being well versed in multi GPU setups, but from what I've ever read, different clock speeds or VRAM size don't matter, other than it will be limited to whichever card has the lowest amount of VRAM. All that matters is that the GPU's are the same type (ie. 580 with a 580).
Can I mix and match graphics cards from different manufacturers?
Using 180 or later graphics drivers, NVIDIA graphics cards from different manufacturers can be used together in an SLI configuration. For example, a GeForce XXXGT from manufacturer ABC can be matched with a GeForce XXXGT from manufacturer XYZ.
Can I mix and match graphics cards is one of them is overclocked by the manufacturer?
Yes. A GeForce XXXX GTX that is overclocked can be mixed with a standard clocked GeForce XXXX GTX.