Installed this a while ago on my NP6350 and for the most part it's been working great. No performance or usability problems. Small issue with fan speeds though. After the fan has been running at moderate to high speed for a while (30+ minutes of gaming, for example), the fan will get stuck at full speed, but dropping to the speed it's "supposed" to be running for a brief moment every couple of seconds. E.g., after the game is exited the fan will continue to run at 100% for a second, then drop to 0-10% for about a quarter of a second, then back up to 100% for a second, and repeat like that forever, until rebooted. Fn+1/Fn+9 works fine most of the time, but once this problem starts they just change the speed at which the fan jumps briefly before returning to 100%.