Ok so, my computer was running fine about a week ago. I decided I was finally going to get around to OC'ing my i5 6600K. Did my research and compared some guides. I updated my BIOS from v1.03 to v1.08. I started with a 4.2 Ghz OC @ 1.30V as it has been noted that it easily achieved on Skylake.
Now the issue: I can't boot directly into Windows. I would be asked to 'Insert bootable media' or something along those lines so I know it was getting through the POST fine. However, if I enter the BIOS during POST my SSD is listed as an available boot option and I can choose to over-ride the BOOT settings and I can get into Windows no problem. So I went back into the BIOS and everything is set to the correct boot order.
I changed NOTHING in the BIOS except for the multiplier and the voltage of the CPU along with the firmware update.
I thought, ok, maybe that was to much OC so I just reset it back to stock and same effect, can't boot directly into Windows.
I thought, ok, maybe I accidentally changed something I shouldn't have so I reset the BIOS to the default configuration and that didn't work.
What I have noticed is if I change the BOOT mode from Legacy to UEFI none of my drives are seen in the BIOS.
TL;DR, I can force boot into Windows by over-riding through BIOS but unable to go direct to Windows.
Thoughts?