Follow the instructions on page 9 of the manual. They are straightforward. The motherboard must support SLI, and you should have the SLI connector that came with the motherboard. If you have lost the manual the web address is, https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CC8QFjAEahUKEwjdirv6sKnIAhXhhHIKHdFKB84&url=http%3A%2F%2Fwww.nvidia.com%2Fcontent%2Fgeforce-gtx%2FGTX_980_Ti_User_Guide.pdf&usg=AFQjCNFm6bobKRU3TPL5WhEefzFNfpANKw&cad=rja
Answers & Comments
Follow the instructions on page 9 of the manual.
They are straightforward.
The motherboard must support SLI, and you should have the SLI connector that came with the motherboard.
If you have lost the manual the web address is,
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CC8QFjAEahUKEwjdirv6sKnIAhXhhHIKHdFKB84&url=http%3A%2F%2Fwww.nvidia.com%2Fcontent%2Fgeforce-gtx%2FGTX_980_Ti_User_Guide.pdf&usg=AFQjCNFm6bobKRU3TPL5WhEefzFNfpANKw&cad=rja