I've had one EVGA Nvidia gtx 680 4gb card and I just got an EVGA Nvidia gtx 680 2gb card and I am trying to get them both working. The only way they will fit in my motherboard is by plugging one of them in a PCIE 8x slot and the other in a 16x/8x slot. The reason I can't put one card in the 16x slot and one in the 16x/8x slot is because my CPU heatsink is physically blocking the 16x slot. I have them connected with an ASUS sli-bridge. My computer recognizes both of the cards running in the nvidia control panel and in GPU-Z. And I did a clean install of the newest Nvidia drivers after putting in both cards. The problem is that there is no option for SLI in the nvidia control panel. Where it should say "Configure Sli, Surround, PhysX," it only says "Configure Surround, PhysX." I think the problem may be that its reading one card as x8 and the other as x16 (according to GPU-Z). But I am not sure that this is the issue. And there does not seem to be an option in the BIOS to change the other card to x8 so that they are both running at x8. If anyone knows how I can get both of these cards working together it would be much appreciated.
Computer Specs:
Motherboard - ASUS Rampage IV Extreme X79 2011
CPU - Intel Core I7 3930k 3.2ghz
GPU - 1x EVGA Nvidia gtx 680 4gb
1x EVGA Nvidia gtx 680 2gb
Ram - 2x 8gb G.Skill Ares Series 240-pin DDR3
Storage - 1x Seagate 600 series 240gb SSD
1x WD VelociRaptor 600gb HDD
1x Samsung EVO SSD
PSU - Cooler Master Silent Pro Gold 1,000 Watt
Case - Rosewill BlackHawk-Ultra Full Tower
Other - Noctua NH-D14 SE2011 CPU Heatsink
Computer Specs:
Motherboard - ASUS Rampage IV Extreme X79 2011
CPU - Intel Core I7 3930k 3.2ghz
GPU - 1x EVGA Nvidia gtx 680 4gb
1x EVGA Nvidia gtx 680 2gb
Ram - 2x 8gb G.Skill Ares Series 240-pin DDR3
Storage - 1x Seagate 600 series 240gb SSD
1x WD VelociRaptor 600gb HDD
1x Samsung EVO SSD
PSU - Cooler Master Silent Pro Gold 1,000 Watt
Case - Rosewill BlackHawk-Ultra Full Tower
Other - Noctua NH-D14 SE2011 CPU Heatsink
Facebook
Twitter
Instagram