The beep codes tell us stuff about the PC, things like the monitor or keyboard not plugged in. If the beeping doesn't stop - I.E. a long continuous tone or beeping that simply doesn't stop that indicates that the machine may not be finding its RAM. I would recommend opening the case and reseating the RAM.

Given you had a fire, has the PC had its internals properly cleaned?


--=-- My credo: If it's worth doing, it's worth overdoing - just ask my missus, she'll tell ya laugh --=--
You're only paranoid if you're wrong!