the fact that the case was 'HOT' is extremly concerning and id hate to think what the actual components of your computer were like. im guessing you havent got very efficient cooling in your computer. do you keep the case in an enclosed space? does it get hot often?
id recommend reseting the BIOS manually. just make sure you discharge yourself of static by touching a grounded object (try the metal pipe at the bottom of a radiator)
open your computer (take the power chord out, of course) and search on the motherboard for a large 2cm diameter pill battery.
take it out but dont lose it.
if you can see two metal contacts, reach in VERY CAREFULLY with a metal object (i used tweezers) and connect the two contacts for at least five seconds.
if you cant see any contacts, or if youd rather stay on the safe side, just keep the pill out for 1 minute before putting it back.
this will reset the motherboard settings to the default. maybe that will fix your problem
if your scared of messing ur computer up further, get your pal to do it.