1. I'm not entirely sure what you mean by "good to go" but the shift profiles are indeed useful and intended to help reduce heat and fan noise, so I think you're fine using them 2. Yeah, you should get the latest GPU drivers from nvidia's website. Manufacturers like MSI tend to be too slow in putting drivers up on their own websites. 3. I haven't uninstalled Nahimic, but I've heard from others that there's no need to have it. But I do see on MSI's website that Nahimic is bundled with the audio driver. I imagine you should be able to uninstall Nahimic without it removing the audio driver, but you can always experiment and redownload it if needed 4. I'm pretty sure that all Steelseries Engine does is influence the backlight. On other MSI notebooks it can be used to change the color of the backlight but that's not an option here of course. Hybrid power technology is old tech, not Optimus. I really suggest you contact MSI support about this issue, and possibly RMA your notebook. I have the latest nvidia driver and Windows 10 updates, and I don't experience anything like what you're experiencing. Thanks! I undervolted the CPU core and cache by 160.2 mV last night and ran Prime95 for two hours, no instability so far and my CPU temps while running Prime95 dropped 10 C after undervolting I may try to push the undervolt even further today. Thanks for the info on the iGPU! Did you use Furmark to test its stability after undervolting like the person in the guide did? And how long have you run stress tests after undervolting? As for HDMI, I actually did experience an issue once where the sound was coming out of the laptop's speakers instead of the external display's speakers. I unplugged and replugged the HDMI cable, and that fixed it. That only happened once though, and it's never been the case for me that the sound didn't come out of either the laptop's speakers or the external display's speakers. Also though, I thought you had already grabbed the latest driver from nvidia's website, 372.70 - did you roll back to the default Windows 10 driver?