Some nagging SLI questions


Sep 21, 2011
Could I run Quad SLI with 2 Different types of Dual SLI Cards. For example, if I have a GIGABYTE GA-990FXA-UD3 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard > ,

And I had 2 ASUS ENGTX560 DCII OC/2DI/1GD5 GeForce GTX 560 (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card.

And 2 EVGA SuperClocked GeForce GTX 560 (Fermi) 01G-P3-1461-KR Video Card

Could I run them all on one board?

If not, could I run 4 of one type of card on the board. Or would I have to buy a video card built for Quad SLI motherboards?

And last but not the least important. What would be the estimated about of Watts needed to run a Quad SLI Config?


You can't SLI cards with different cores, and you can't Quad-SLI anything GTX x60. The board you listed does not support Quad SLI. You can Quad SLI GTX 590s (2 of them, 4 GPUs total) or GTX 580s. I'm not sure about 570s, I know for sure that you can three-way SLI them. For 2x 590s you need 1200w and for 4x 580s you need 1500w.


Mar 11, 2011

That is why when I buy a MB I only go for a MB with 2 PCI-E x16 slots. The most I will put into my system is 2 cards. If you go over 2 cards the performance gain compared to the price paid is not justifiable.