I have a gateway desktop that I got from my cousin and it's amazing for gaming. So, I'm pretty sure, it's custom made.
I unplugged some things to clean my room and when I tried to plug them in again, the computer would turn on along with an error message on the monitor.
It says that the cable I just plugged in is plugged in "power saving mode". This has happened once before which I came to this exact website and followed some instructions that I listened to and it worked.
However, the solution is not working this time. I've turned my PC off so many different ways that I'm scared I might have damaged the power supply.
This message indicates that the PC is not sending a video signal to the monitor or more correctly the monitor is not receiving a signal. You might have caused a loose connection with the motherboard and the video card.
Perhaps you can find a friend with more practical knowledge to help you.