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it worked wow. thank you so much >>> Before continuing make sure the AC adapter is connected to your laptop and your battery has at least 20% charge remaining. <<< (0) - NOTE: This step is Only necessary if your system isn't already using BIOS v3.05 Update to the official v3.05 BIOS provided by Lenovo . (1) - Create a backup of your own BIOS (now v3.05) by using this tool. Extract the files and run the included .bat file from an admin command prompt. . (2) - Download the files for the v3.05 mod, put the files of folder [1] to the root of your prepared USB DOS stick. Let the BiosFixer prepare your BIOS for flashing by drag and dropping your backup file on it. Put the created "v305mod.bin" file to the root of your USB DOS drive as well. . (3) - Now you need to downgrade the firmware back to v2.07 in order to flash the mod. . (4) - Boot from your USB DOS drive, when you see the command prompt type BIOS and hit enter. Wait until the BIOS is flashed (you can safely ignore warnings about non-existing regions). . (5) - Once the BIOS flash completed with no errors, type EC and hit enter. Wait until the EC is flashed. Then reboot. . (6) - Go to the BIOS setup menu, load the default settings, apply and reboot. Done. In case you're using an ultra bay GPU follow the instructions in post #2 and flash the vbios.. NOTE: It's crucial that you flash both, BIOS and EC. Having different EC and BIOS versions can in certain situations lead to issues. IMPORTANT: If you want to go back to stock v3.05 you can do that easily by simply using the official update from Lenovo. That's it, nothing additional required in this case. Old instructions for users with v1.07 / v1.09 / v1.10 or v2.04 / v2.07 who for some reasons don't want to update to v3.05: Create a backup of your own BIOS by using this tool. The archive contains the files of the program and a .bat file that will create a backup of your BIOS. You need to call the .bat file from an admin command prompt. Don't delete your backup file, you will need it in case you want to go back to the stock BIOS some times. Also don't share it since it contains your personal Windows key including activation. . Download the attached BiosFixer, simply drag and drop your BIOS backup on it and it will create your personal mod for you. . Flash the modified file with the tool from the first step, use the command below: fptw64 -f v1xxMod.bin -bios . Wait for the flash process to finish, if you don't get an error reboot. (You can safely ignore warnings about non-existing regions). . Video walk-through of bios settings (thanks @allstone): My donation link in case you want to buy me a beer

might be cuz of the default operation voltage of the ram