Hi, First of all sorry for my english. When I start my PC, it runs but monitor,keyboard and mouse doesn't work. Fans are spining and motherboard has lighting. If I wait like 15 minutes then it boots up and everything works like monitor,mouse and keyboard. I have tried other PSU,CPU,RAM,GPU (tried on onboard VGA), HDD. I also changed the CMOS battery. But still I cant solve the problem. Looking for help. Thanks