Merry Christmas all! And great work on the patch.
I am having issues myself, running GTX460 in SLI on a GA-P55A-UD3.
I have read a lot of the tips posted to others having similar issues and still have no luck getting the patch to work.
I have followed the process correctly, each time doing the following:
1) Disable any SLIPatch
2) Uninstall Forceware
3) Reboot to Safe Mode
4) Run Driver Sweeper
5) Reboot to Windows and install Forceware XXX
6) Reboot to Windows and install SLIPatch 0/1.X
I have tried the following combinations:
1.a) 258.96 + 0.8b
1.b) 258.96 + 0.9b
1.c) 258.96 + 0.91b
1.d) 258.96 + 1.0
2.a) 260.99 + 0.9b
2.b) 260.99 + 0.91b
2.c) 260.99 + 1.0
3.x) 265.90 + N/A
The 265.90 drivers simply run through a constant kernel crash/restart loop - the drivers, not the PC - until I have to hard-reset.
The rest of my attempts all end with the exact same issue; Once Windows has finished loading, all I get is a black screen and no desktop. There is no startup sound, so the desktop is not loaded, and swapping the DVI connection does nothing to help.
Are there any particular BIOS settings I need to enable/disable?
Cannot use the 257.15 drivers with my card.
Do you have PnP set to yes in your BIOS and ACPI 2.0 enabled? Also, which of the Administrator accounts are you using to install the patch? For me it helped to use the 'real' one. When you uninstall the drivers, do you remember to delete c:\nvidia? Driver Sweeper does NOT do this by default unless you set it to. If the directory isn't removed before you reboot, Windows will 'notice' the two devices without drivers and kindly re-install them!
In the BIOS, if you enabled ACPI where it wasn't enabled before then you need to reinstall windows. Some people have got away without this but I didn't. If you enable ACPI and NOT PnP you might find, like I did, that windows install wouldn't even run.
Also, my antivirus software wrecked my whole driver/SLI config where it noticed that key files had been changed. Had to remove it.
Like you, the 265.90 drivers just won't work for me. I'm using a couple of EVGA GTX 480s on an ASUS X48 MB. I suspect ACPI just hasn't been implemented the same way for all our motherboards and therefore SLI won't be reliable. I'm beginning to see why NV might need a certification programme beyond just propaganda.
BTW currently I'm using the 260.99 drivers with a test release of the patch Anatoly sent me. So far it seems to be working fine but then the rig has only been back up and running for a day. Furmark and Oblivion seem happy so far.