Computer won’t display but powers on

Sep 5, 2018
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so this is probably a forum topic that gets posted quite a lot so let me keep it quick. I’ve tried repositioning ram, taking out and placing back in the cmos battery, changing monitors and hdmi cords. Took out my gpu. I even took apart my cpu and repositioned it to see if that was the problem still no luck.

Context:
It all started after I built my pc I set it on my desk and it booted up fine. I think it was coincidence but after I bumped the table the computer kept restarting over and over in a frightful panic I force shut down my pc and here we are today. I thought maybe my mobo fried but the power led indicator is lit and all my components are getting power and seem to be functioning.... any help is gladly appreciated.
 
Solution
when you did use the internal for test did you remove gpu from board you might have to do a breadboarding test something could be making ground with the case .