Pawling21

Alright. This is what finally worked for me, after hours of trial and error and piecing together additional steps from others posts: (I have a Clevo P150SM-A /w a GTX 970M in it) Before initiating this Flash process, go to your device manager > expand your display adapters > disable GTX980M. Now do the following - 1. Download the newest version of nvflash, instead. 2. Create a new folder in your C:\ drive and simply name it "nvflash" 3. Extract your nvflash download into said file. 4. Also move your BIOS.rom file into the C:\nvflash folder. 5. Open CMD as administrator and type the following, in order: cd C:\nvflash nvflash64 --protectoff nvflash64 -6 BIOS.rom After that last command prompt, you should get a message about the the subsystem ID's not matching. Then you will be prompted to press "y" to confirm an override. The final prompt will say something about the update being aborted/failing/etc. Don't stress, it worked. Go back into your device manager and enable GTX980M and reboot. You'll be able to easily verify the success with Nvidia Inspector. Just start it up and open the Overclocking window. Your Voltage should now be unlocked. Now OC to your hearts content. So, it didn't work as well as I had thought. However, I did finally get it to work. So here's some new steps: 1. Go to device manager > display adapters > disable GTX980M 2. Download Mnvflash (which you have) 3. Create a new folder in your C:\ and label it as "mnvflash" 4. Extract all the contents of the mnvflash download into it 5. Drag your BIOS.rom file into the same folder 6. Open CMD as administrator 7. Now the type the following commands in order: - cd C:\mnvflash - nvflash -b filename.rom (replace 'filename' with your stock vBios. this one is optional. just more of a safety measure.) - nvflash -6 BIOS.rom This time, you should hear a beep while CMD runs. You'll be prompted to hit 'y', twice. Hopefully, everything works and you can go re-enable your display adapter and reboot. If you don't already have it, download Nvidia Inspector upon restarting. Once you open the Overclocking menu that comes along with it, all the options should be usable.