Question Problem with the video input

[KettiMangiaSpaghetti]

Hi, it's my first post, so I might be in the wrong section or something, sorry if that's the case.

I wanted to ask for help regarding a friend's PC. He has had a PC built (always by a friend of ours) for about 2 years.
In the past he had already given him a problem whereby he restarted by himself or that if he touched the power cord even slightly everything would shut down but then it was solved by itself.
Recently however (2 weeks ago), he accidentally hit the computer lightly (being that he put it on the ground), and it started flickering on his screen, he restarted 3 times giving it a blue screen and shut it down. The next day it started turning on again but the video input doesn't work, it's as if it doesn't recognize the door. The pc currently turns on but nothing is displayed on the screen, and we have already tried changing cables and monitors. It has only 1 HDMI video input as it has an integrated video card and uses the one from the motherboard. Personally I think it's a motherboard or video input problem, do you have any ideas or solutions? Maybe even ways to figure out what the problem is. Thank you very much and have a nice day.

PS: Today I should go to him to test if it's a video input problem by installing a video card to see if it still gives problems, I'll give you updates in case.

 

[Ralston18]

When updating also include full system hardware specs and OS information.

Include PSU: make, model, wattage. History of heavy use for gaming or video/audio editing?

= = = =

If problems occur when "touching" or "moving" then that is a sign the there is a loose connection somewhere.

Intermittent "makes and breaks" (which are problematic just on their own) also often lead to corrupted files on the host system. And more problems start happening.

When ever possible swap in known working (no outages or loss of signal) cables. Change only one at a time being methodical and careful not to alter something else.

Before you install another video card (with power off and system unplugged) be sure to clean out dust and debris plus verify by sight and feel that all other cards, connectors, jumpers, and RAM are fully and firmly in place. Check case connections as well.

Try booting into safe mode.

Check Reliability History and Event Viewer for error codes, warnings, and even informational events that occurred just before or at the times of the shutdowns.

 

[gamerk316]

Sounds like a cable or component is loose inside the case. Pretty much just have to go through and reseat everything until you find what it is.