New pc build problem

[Caberiano]

Like the title says im having some problems with my new built pc. When i turn it on with the usb boot drive. It shows me the options to set up a new windows like it should for 3 sec then goes to black screen for 3 sec and continues to cycle trough the two states. Notice this is without me turning the pc off so something is messing with the connection of the display. I’ll add a video of it so you can better understand what i mean thanks for any help :)

[Applefreak]

26 minutes ago, Caberiano said:

Like the title says im having some problems with my new built pc. When i turn it on with the usb boot drive. It shows me the options to set up a new windows like it should for 3 sec then goes to black screen for 3 sec and continues to cycle trough the two states. Notice this is without me turning the pc off so something is messing with the connection of the display. I’ll add a video of it so you can better understand what i mean thanks for any help

71208927354__DDC835B5-1706-44C0-8CF3-6DD8F77F0F0D.MOV

Looks like an issue with either GPU output or your monitor, have you checked the cables yet? The installation menu seems fine as it didn't crash.

[Caberiano]

1 hour ago, Applefreak said:

Looks like an issue with either GPU output or your monitor, have you checked the cables yet? The installation menu seems fine as it didn't crash.

My monitor is fine i connected it to my other pc just to dubble check and its working with no issues.

i got past the setup of the pc and had time to install geforce and update my drivers then the screen just turned black again. So i took out my gpu inspected its pins and connected it again. And then it worked i currently have my case laying sideways and its working but i fear if i tilt it upright its going to cause issues again. I really dont know what the problem is since if dubble checked all the cables and they seem to be connected properlly. 

[Caberiano]

*UPDATE*
when the pc was laying down I updated all the parts. I also downloaded Cyberpunk 2077 for good measure to see that all my components were working like they should. They worked like a charm. So after that i decided to lift the pc upright and yet again video output disappears but the pc is still on.