My Monitors Keyboard Mouse and Headset do not turn on

[Gutsynteric]

~Warning I'm on a phone with a small keyboard so please do forgive any speeling/ grammer mistakes~

 

Hello, My Monitors Keyboard Mouse and Headset do not receive power. This happened after my 144hz monitor started flickering, I flicked the power switch to turn off the computer and switched the side I had as input to be the output. After this I turned on my computer everything inside turned on but nothing connected to my conputer, besides my Blue Yet mic. I had experienced this problem before when I first got my 144hz monitor I sprayed some compressed air into the computer and it fixed itself doing that this time gave no results. I then looked to see if there was a fix for my issue none were found that worked. If anyone can help me get this resolved that wpuld be much appreciated.

Thank you