My brother-in-law called me about a PC that I built for him...he knocked it over and it cut off. When he turned it back on, it went into the BIOS Safe Mode stating that "the last time the computer started, it hung due to an inappropriate processor speed". I had him reset the system defaults...got back to the same screen. I had him reset the speed down from 1800Mhz to 1350 Mhz and it booted and went into Windows. However, after this, it would randomly reboot. Never heard of this issue.
Hi, welcome to forum. Clean the CMOS; to do it, turn off PSU, remove the CMOS battery(looks like a niquel in your mobo), wait 10 secs and put it back, turn on PSU and reboot, maybe you need to move the jumper to (refer to manual for details). To help you on BIOS settings i need to know what processor is that.
Random reboot: perhaps the memory had gone bad after the fall.
Tat fall must have been bad for that error message to appear.
I suggest that you go check out that system personally. Dismantle the system, check individual components, then reassemble it from the ground-up. Next, reset the BIOS (clear CMOS). Then start the system up, adjust BIOS to desired setings, save settings, boot up normally, and see what happens next.
Don't forget the jumper/ DIP settins on the board.