I have a lenovo Y510P with Win8 - Dual GT750M - Driver 334.67 Beta (the stable version 332.21 behave the same) 16GB Ram.
I have serious troubles when running a game with SLI enabled in high settings - It presents stuttering and Graphic Glitches with lots of random fragments, constantly crashing to desktop or even freezing the laptop.
The "optimized settings" of GeForce Experience are clearly too low because when I run almost anygame maxed out with a single GPU runs fine average 20 FPS (too low right? jeje), BUT...when I turn on SLI is a total disaster.
I've tried 2 drivers by now without luck on several games like BF3, Hitman Absolution, Farcry 3. I need help to configure SLi on high/Ultra settings as lots of reviews show.
As I wrote, 1 GPU can get good 30FPS without some heavy x16 filters or maybe tesellation off while the other is set to PhysX default, that means Sli OFF. - With the same settings but Sli ON (Nvidia recommended) it's even faster with higher FPS but stuttering appears as well as frags and crashes.
Does anybody know good tools to set nvidia drivers from the core and another monitoring tools for SLI systems ? (temp, FPS, Frecuency, volts, etc) - at least to try to find the issue.
I used to set FRAPS and some other tools for AMD, but this is my first SLI rig.
Fraps is good for FPS, you could get something like HWinfo and just let it run on background and when you are done gaming you can check your min/max/avg temps, CPU speeds, GPU speeds, voltages etcetc..
I've ran some test with different configurations always in Bioshock Infinite. So far I've found stuttering and crashes are pretty much random while SLI enabled.
I've try Alternate frame rendering 1 and 2, finding the second being more compatible and stable. I've played with AA quality (4X, 8X, 16X, SLI 8x, SLI 16x CSAA) => result is better performance with lower values while VSYNC is on. SLI 16x CSAA works fine with minor performance impact.
Enabling VSYNC has been good in SLI, the option Smooth Vsync seems the best in stability and performance (half adaptative is also good but heavier). When vsync is off instability is noticeable present.
I tried to force PhysX on GPU 2 for Bioschock Infinite, but always the calculations are in the CPU - What??!! weird.
In one run the game was stable, after playing 5 min I got stuttering mostly on trees but no crashing. With same configuration after cooling and reboot, crashes where present again. - As I stated before this seems all random failure. Could It be a hardware problem??? What should I set in the driver?