Machine_Check_Exception with XMP & UFEI?

[RobHague]

I reinstalled Windows 8.1 and switched to UEFI. Install went fine, but on reboot I got stuck on the startup. It just froze then later gave me a MACHINE_CHECK_EXCEPTION. I couldn't get it to budge. Finally after much fiddling it seems it's caused by XMP but I had been using XMP perfectly fine since I built the system. Not sure why UEFI hates it.

Another odd issue is that sometimes my keyboard (Coolermadter Rapid-I) isn't detected. Boots up and I have to unplug and re-plug it to get it to light up. Sometimes it lights up on boot. Sometimes it lights up only in windows (which makes entering the bios impossible).

It's an MSI X99S Gaming 7. 5820K. G.Skill Ripjaws 4 16GB (4x4GB) 2666MHz. No overclock other than XMP.

 

[RobHague]

Yeah the keyboard is in the ports next to the PS/2. The keyboard works most of the time, just now and again it seems to just decide "nope".

Yes I installed windows in UEFI, everything worked great till reboot. Then it locked up on the boot screen. Leave it long enough and it dies with MACHINE_CHECK_EXCEPTION.

I managed to get into the BIOS by resetting it. I played with the settings and found that it stopped working as soon as I enabled XMP (which I had been using fine previous in legacy mode).

I am on the latest BIOS for my board btw. H70.