Hey guys, it's good to see that the thread is still active. I'm run into a bit of a problem with my Y500 650m GT SLI, and I've surfed through the internet and forums as much as possible to remedy this issue, but I'm not 100% and would please like guidance. I figured that this would be the best possible place to ask. Basically, My Y500 is stuck at the P8 (idle) state even when running 3D applications including gaming. As shown in the attached photo, it literally spikes to P0 for 1 second only to drop back down to P8. Therefore, I am ultimately stuck at 135/405... Now I have heard that it is possible to manually control the P-state through configuring with Nvidia Inspector, but I haven't done that yet and would possibly like to fix the issue without having to do that. Would any of you happen to please know how I could best remedy this issue so I may be able to play 3D games at full optimal P0 state performance? I would greatly appreciate it. What I've tried/done: 1) Try Lenovo's new vBios for windows 8.1 2) Try another fully functional SLI Ultrabay Card 3) Reinstall OS What I haven't done yet: 1) Manually configure P-state through Nvidia inspector coding (unaware on how to do this, will read up on it and try later) 2) Flash the bios to 2.04 to unlock (it is on default 2.02) Note: This is mainly concerning SLI performance, as many would already have assumed. When I take out the Ultrabay SLI card, the single 650m GT runs fine on P0 state when 3D games are on.