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 and my monitor would tell me it dosent think whatever cable I just plugged in is plugged in "power saving mode" this has happend once before which I came to this exact website and did some instructions that I listened to and it helped, however it won't work this time and I've turned my PC off so many different ways that I'm scared I might have damaged the power supply...- help
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.
