Monitor displays "no signal"

KylePHl

Commendable
Oct 26, 2016
4
0
1,510
When I turn on my pc, the monitor displays "no signal". I've tried to connect the monitor into another CPU and it worked properly so the issue might be in the CPU itself. I've tried many ways to fix it:
•Removing the Graphics card and plugging the monitor in the onboard motherboard.
•Removing and cleaning the RAM(using a clean cloth) and also cleaning the slots(using a brush) and tried putting it back in different slots.
•I also remove the CMOS battery for a few seconds and clean it(using a clean cloth) and putting it back.
...but none of them fix the issue. I don't know if the problem is in the power supply but the fans are moving and the motherboard is on.