Have the following system that I'm trying to re-activate SLI......
Case: Customized old generic "pakman" case
PSU: Thermaltake TR2 W0388RU 600W
Mobo: MDA72P7509 AM2+/AM2 NVIDIA nForce 750a SLI
CPU: PI X3 8750BE
HSF: Zalman CNPS9700-NT
GPU: 2 x XFX GTS 250s
Memory: G. Skill F2-8500CL5D-2GBPK
At one time when I first assembled it had it going in SLI. Deactivated that to run 2 x f@h GPU which worked for a while. Then just ran one folding gpu while leaving both in the system and running.
Now that I want to go back to SLI the system will not "see" the second card. Have tried the following but still can't find a way.
1. Downloaded the latest drivers.
2. Swapped out cards.
3. Finally removed one card and turned off system. Install second card and SLI bridge.
So far it has been a bust.........