So I have a clevo P771DM-G With 980M nvidia 8 GB, Gysnc card BIOS SAYS GPU GM204-B Rev A1 Bios version: 84.04.67.00.0E Samsung memory 8 GB Device ID 10DE - 1617 1558 7703 Schenker 1558 Tried to to find some bioses these are the ones I found but not sure if these help me in any way. https://www.techpowerup.com/vgabios/167297/clevo-gtx980m-8192-141030 https://www.techpowerup.com/vgabios/166462/166462 So I try to undervolt but there are no options in MSI after burner for me at all everything locked. I use nvidia inspector and put max underclocks -135 mhz gpu and memory. My default clocks are: 1037 mhz gpu and 2506 mhz memory. So after putting the max underclocks of -135 mhz gpu and -905 mhz memory. I get 987 mhz and 1598 mhz memory But for my calculations it should be 902 gpu and 1601 memory. So I don't know why it differs and I get higher GPU mostly.. I used GPU-Z to extract my bios and open with maxwell tweaker. I see like extremely alot values. but I do see the voltages. But it is not one voltage setting. and I wouldn't know what to safely edit.. It may end up not booting at al.. So I don't think im suppose to edit it like this. It would be safer to edit via windows.