My asus p5p800se do not launch after my codegen psu overheated as the result of no working cooler, and released the electric discharge when I was shutting down my pc. So some overvoltage went on mb, hd etc as at that moment some strange sound was heard from sound outlets exactly before the electric discharge. Several years ago the similar situation happened as mb did not booted. Then mb service changed some board stabilizer (as I undertood it was some kind of diod) and the electric supply to proc was renewed and pc was working a lot of time. This time I do not know if this stabilizer was replaced despite master even asked me which stabilizer, but I did not remembered except the issue was in "stabilizer". This time there were no electric supply again and master replaced some visually bad transistors and probably drivers (despite I do not even assume what is driver on mb) on board. The electric supply was regenerated for processor but mb do not boot. There was also "no codes" code on postcard after repair. So master stopped to try to repair it. It seems unrecovable? Or somebody can make some suggestion where to find the issue? For example my hd was also not defined on other pc after that. But when broken tvs diode was revealed and replaced it was possible to use hd again. So it confirmed the overvoltage issue. Are there same antivoltage barrier on main board? Maybe main board also need to replace some component as in the hd pcb?