Hi guys im completely stuck and need help, my cpu overheated ages ago and the fan broke. Finally got a new fan put in today, but now the computer turns on but nothing shows on screen. And then sometimes it comes up with reboot and select proper boot device but thats it. It wont let me get into bios to check cd/floppy/hdd boot sequence it just freezes on that screen. I had that happen a couple of times but now screen is blank and computer wont show anything and no beep sequence. Its an intel P4 3.w mhz processor 1 gig ram 160 gig hdd. Have tried changing hdd but no change.