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Hi, I installed a new GTX 980M in a M17X R4 but there's no way to get PEG mode working. First I tried to follow instructions from Lee James Wood (who sold me the card), using the stock A12 BIOS but it didn't work. He stated I shouldn't stay on Windows 10 x64 with Optimus mode because it'll cause issues and probably damage my new GTX card because of erroneous temperature readings, so I have to try harder. I tried with an unlocked A11 BIOS and then following J95's instructions: ...but it didn't go. In a different way. By the time I power on the notebook after reinserting the card back, I obtain a black screen and beeps. I tried the procedure step by step, first by setting in the BIOS the mode to PEG and disabling the integrated graphic card. then I tried by setting the mode to PEG and setting the integrated GFX to auto instead of disabling it. No way: always black screen and beeps. Actually the video cards are in SG mode, and nVidia Optimus seems to work right. I'm not enough into video card tech to judge but mr Wood, who's much more expert than I am, told me that using SG mode the dedicated card signal and management go through the integrated GFX; because of this there's the risk the dedicated card isn't correctly managed, especially regarding temperature readings. Nothing wrong except slower performances. Has anyone a piece of advice for me? Has anyone with a similar hardware configuration managed to use PEG mode? And How? It seems there's no other thread regarding this matter, and that I'm not the only one with this problem. Thanks in advance!