Help PC no display but fans are spinning.

Feb 18, 2018
2
0
10
Hi i need your help, i have this two PC that are the same board and same processor , every first boot in the morning there’s no display or POST just black the cpu fan is spinning. I tried removing the GPU still the same even clearing the cmos tried cleaning the RAM still no luck. Then here comes the odd part i tried these GPU and RAM on the other PC it boots up then tried switching the two from the other cpu still the same it works on the working cpu but not on the no display tried changing the monitor still no freaking luck. Then after hours of trying out swapping and cleaning it boots up using it without no issue here comes the frustration when the PC are shutdown because im gonna sleep then in the morning the problems comes back i have to do it all over again swapping cleaning for almost a week still cant figure out whats the problem.