ciwei100000

Luckily, win8 bios works fine with my external keyboard.

This beta EC will help unlock the CPU throttling. https://forum-en.msi.com/index.php?topic=162629.0

Can I share the URL of this post to another forum?

I've tried. There is no way to blind flashing. The "Ctrl+Home" method doesn't work for MSI notebook. Contact the MSI RMA

If flashing the unlocked win7 bios, you will find the "uefi boot" option in the "BOOT" tab. Alter its value into "auto" or "enable" and then enjoy the uefi booting. It's easy to use the AMIBCP tools to unlock your bios by yourself.

I've read this post [GUIDE] Disabling M17x R3 IGP The iGPU of the M17x R3 can be disabled. However, when I followed the steps to disable that of my MSI notebook(Set Primary Display from SG to PEG and Internal Graphics to disable), the screen went black after restarting. Then I had to reset the CMOS to get it normal. I wonder any differences between those two notebooks. Do they have different topologic structures of iGPU and dGPU?

Try to uninstall and re-install the nvidia drivers.

That's really helpful. Thank you. But I have bricked my bios by using the "/recovery" parameter of afuedix64 and the RMA re-flashed it to win7 bios. Now there's no problem unlocking it by myself.

I've used AMIBCP tools to unlock the bios. But unlike the win7 bios, when flashing win8 uefi bios, it says "Unable to start a secure flash session" . I wonder why I cannot flash the unlocked win8 uefi bios.

I just have a noob question. Is it good to overvolt the GPU or just overclock it with default volt? I heard that overvolting the GPU would extremely increase the heat or might brick it.