So I got my 690 today and I tried the following.
These steps I am writing out are accurate, and this is exactly how I did it.
1. Used DDU with the option "Clean and shut down".
2. Installed my 690 and 680, bridged them with SLI connector.
3. Boot into windows, let windows detect cards. (Windows always only detected one properly and had one "failed" but it was there)
4. Windows asks me to reboot, so I did.
5. Install original 320.18 Drivers and reboot.
6. Downloaded 320.18 modded drivers, ran Install.cmd as admin with UAC disabled.
7. Reboot.
8. Enter nvidia drivers, says SLI is disabled. PhysX is on Auto. I chose to maximize 3d performance (or whatever the setting says). 690 works fine, 680 gets PhysX dedicated.
9. 3DMark11 results only reflects back on the 690, this is not Tri-SLI performance. 14800~ points.
I tried the new method.
1. Used DUU with the option "Clean and restart".
2. Boot into windows, let windows detect. (Again, I get the same problem with detecting the 680 i think)
3. Install original drivers 337.88 and reboot.
4. Copy nvlddmkm.sys from system32/drivers/ into same folder as DifferentSLIAuto.exe, and run DifferentSLIAuto.exe. Success. (Am I supposed to copy paste it back to system32/drivers/? Because I didn't.)
5. Run Install.cmd as admin with UAC disabled. 1 File copied, success and tells me to reboot.
6. Boot into windows. Check SLI setup, it is disabled. I enable SLI with PhysX on Auto.
7. 680 becomes dedicated PhysX again.
I repeated this new ^ method once again to be sure I didn't miss anything.
This time on step 6, I set my CPU for PhysX and then enabled SLI. Still the same.
Here is a screenshot of what GPU-Z looks like. On top of that, my drivers looks
all screwed up. I have no options left but useless ones.
Backup Link in case IMG doesn't work:
http://i62.tinypic.com/351ajgp.png
View attachment 58946