told my friend to look, the cpu and the area around the socket where you put the cpu is burned out (just melted) including the ram, the fire lit up the power supplies and then electric discharge cause the short circut among the cd-roms, hard drives, and the cards. the back of the cd-roms and hard drivers are burned out, which makes them useless now, they installed sound cards, video cards, and nic onto another computer, non of them worked. the power supplies got burned out too, the fire lit up the printer parallel connector, speaker out put, monitor connector, and the scanner connector's pins which lies inside these connectors are burned up too (just become back and they tried onto another computer, not working) they'll take the monitor, printer, speakers, and the scanner see if they can get the connectors fixed, meanwhile, they are asking the company they bought the computer for money return since your conclusion, which is improper cooling fan installation