Not displaying anything to monitor
This desktop was in storage for a few years according to the customer. I hooked it up to my monitor and go to turn it on. Everything seems to be running correctly but nothing will be displayed and it shows on the monitor that there is no signal. I tried different cables, connecting my monitor to another computer to be sure the port works, reset the ram and put it in a different slot, and removed and reinstalled the CMOS battery. All capacitors on the motherboard seems to be fine. All the cables seem to be connected correctly. The led lights on the back show A- Yellow, B- Green, C- Yellow, D- Green. I haven't been able to find a description for that color series, unless I am searching for it wrong. Being old and kept in storage for a long time, I believe there could something up with the motherboard, either being the internal video doesn't work or something else. Any ideas what could be wrong? Thanks in advance.
Is this a good question?