ok guys heres the deal, friend bought a pc 2nd hand works fine its a p4 2.4 some dodgy mobo,256mb ddr 333, althought mobo is 266mhz ;/. anyways, it started to act funny after, artifacts and sorts. as i touched the northbridge it was really hot (passive cooling) so i added a 4cm fan. now problem gone. Ok then it happend again a week later, and reading on the net it said something about maybe powersupply not good so instead of buying a PSU i bought the soprano with a 430 watt psu with it. btw the old one was 240watts. ok now the problem, after swapping the parts it went ok but it wont beep (aka post). no screen no nothing. after some jiggling it works for a while so i switch it off to plug in all the fans/cdrom/hdd but now it is not working copletely. so my problem is now: no beep even if i try to make it beep (removed ram, removed vga) what do u guys think is the problem? pls dont tell me its the mobo because if i do change it means i have to change the cpu . please guys u guys know any reasons why it wont beep and yes the internal speakers are plugged in and also no POST or display.