Second gtx 980 Idle in sli

[anon1239]

Hello people,


To accompany my first 980 with more performance, I decided to buy a second one. After I plugged the card in and installed the drivers, I went to the control panel and enabled sli. Up until now, I haven't really noticed how the performance wasn't an increase in high intensive games after adding a second card. I only discovered this fact after benchmarking the computer in heaven 4.0 to find the second card was running at 26 degrees celcius, while the other was at 66. Also, the first card was using over 3000mhz in memory while the second was using around 300mhz.

One solution to yhis problem is that I am currently using an sli bridge made for 3 cards, and came with my motherboard before the 980's were released (I upgraded from a 700 series card). However, I want to be sure this is the issue if I am to buy a new bridge. My cpu is a 4960x, so it shouldn't bottleneck the cards.

Thank you for your time

 

[migronesien]

As far as i know it doesnt matter how old the sli bridge is (if it isnt like 10 years old) but im not sure about the bridge being made for three cards.
Did you try any other benchmarks or tested your new setup in some games which for sure make use of sli technology?
You could display your GPU usage to make sure that both cards work in games with MSI Afterburner or EVGA PrecisionX

 

[krells]

What motherboard are you using and what which slots are the gpu's in? Also, everry time you update your gpu driver it will disable SLI and you have to go back into the control panel to enable. If you have updated drivers recently that might be the issue.

 

[anon1239]

Thanks for the advice, guys! I had infact updated my drivers a couple days before I noticed the problem and I found that sli was disabled. Turned it back on and ran the heaven 4 benchmark again to find that the performance increased twofold. Hope this helps anyone with the same issue.