So i recently ordered a second video card and after hooking everything up I turned on my computer. Windows and ntune detected the second card so i enabled Sli in ntune and started bench marking. First i ran 3dmark06 and in the details tab it only detected 1 card so i figured sli made 3dmark think there was only card 1 card but there both working together. When the test was done i looked at my score and i relized it was the same score i was getting with 1 card, 13557 meh, so i went back into ntune to check if it was enabled...it was. So i ran some other benchmarks and games that auto detect sli and a long story short they either didn't detect the second card or the perfomace was the same if not worse. I had this same problem when i was running 2 7900gt's, sli would be detected but there would be no performance boost so i just figured the cards were faulty due to the fact that they were second hand from my friend. Also i've tryed in the newest drivers from nvidia, the 180.48, and when ever my computer starts up after the auto restart my screen flashes random colors then goes black. I know both cards are fine cause i've puled one out and tryed the other and vise versa. I've also flashed my bois to the latest drivers and i've reinstalled windows several times. At this point i think its the mother board but i dont know.
My Current Setup:
E6750@2.9
4gs of Patrioit Ep
500g WD sata hard drive
Msi P6n Sli Deluxe(650i)
2 Xfx 9800gtx+
My motherboard is sorta of weird, to enable sli you have to flip a little card that turns the x 16 slots into x8 and x8. At this point i think its the motherboard, i've had the same problem twice so i just might order a new one. I dunno....if you guys have any ideas im open to anything.
My Current Setup:
E6750@2.9
4gs of Patrioit Ep
500g WD sata hard drive
Msi P6n Sli Deluxe(650i)
2 Xfx 9800gtx+
My motherboard is sorta of weird, to enable sli you have to flip a little card that turns the x 16 slots into x8 and x8. At this point i think its the motherboard, i've had the same problem twice so i just might order a new one. I dunno....if you guys have any ideas im open to anything.