Hello there. I bought a P150EM on Christmas of 2012 in Brazil, manufactured by a brand that doesn't even exist anymore (Powernote). It had a i7 3610QM and a Radeon HD7970M. Its GPU broke in middle of 2013 and since then, I wasn't using the laptop (or using sporadically with GPU deactivated in Windows, since just the fact of installing the drivers was causing BSOD). This month I finally realize that was just a waste not using this laptop, since it has a MXM slot for GPU and I found a GTX 970M for $162. So I bought a piece and changed the processor for a low power one (the one in the title). And it works... kinda. If I try to play some intensive games without v-sync activated (aka using all the power of 970M), the game crashes after some minutes and laptop starts to do the same beep that it does when you don't have a GPU installed, forcing me to restart. After that, the GPU is still detected, but I can't launch any games until reinstalling the drivers. If I try to play less intensive games, it plays fine for hours. I was using Afterburner to test temperatures and the maximum I reached with GPU was 84 degrees celsius, so I don't think is getting too hot or something. I have a feeling about the problem that I just want to confirm here: I don't have the original PSU for it, because Powernote sent to me a generic PSU with 150W capacity. After a basic research, I could confirm this is a little less than it supposed to be (180W). If it helps, I have the last bios from Prema (1.02.07PM v2, I think?) and I installed his OC v2 vBios. So, I have 3 questions: -Is it actually a PSU problem or my GPU is defective? -If I flash the stock vBios, would it help in anything? -Is 180W enough to cut it? I bought this PSU, but I still have to wait until it comes. It's supposed to arrive in the beginning of next year, sadly. Thanks in advance and Merry Christmas, everybody.