All VGA connections have flicker

[TDP_Equinox]

On my VGA display, I see this scrolling line affect.

 

I'm out of ideas at this point; I've tried everything I can think of. 

 

This scrolling happens when a display is connected to this machine by VGA. 
I have tried different displays, different cables, and I've even installed a GPU with VGA to eliminate the motherboard. 

It happens when plugged into the VGA on either the onboard connector, or an external GPU. 

I've tried windows 10, and windows 8.1

 

It does not happen when plugged into another type of connector like HDMI or DVI.

BIOS is up to date, windows and driver are up to date. 

 

I'm leaning towards motherboard or cpu failure, but even that doesn't make much sense; since an external GPU does the same thing. 
If anyone has any ideas, I'd love to hear them. 

Thanks, 

[KarathKasun]

Monitor, VGA cable, power supply.  Its one of those.

 

VGA is an analog signal, dirty power directly impacts image quality.

[TDP_Equinox]

37 minutes ago, KarathKasun said:

Monitor, VGA cable, power supply.  Its one of those.

 

VGA is an analog signal, dirty power directly impacts image quality.

Forgot to mention that I've tried a different cable. 
I haven't tried a new power supply though, that is a very valid point. BRB, giving this a shot. 

[TDP_Equinox]

3 hours ago, RandomGuy13 said:

Try running the auto align function on your monitor first, I think that is more likely to solve the problem.

I'd tried that. It's more like the incorrect refresh rate was being used. 

I've got a new PSU plugged in, and so far it seems to have fixed the issue. 

 

Very interesting, but glad I made the topic as I didn't make the connection between dirty power and analogue display. 

I'll mark it as solved for now, thanks for the fresh eyes!

 

EDIT: This SORT OF solved my issue. The short version is, my PSU was fine, it was the power bar I had it plugged into that was bad. 
When I tried a new PSU, I plugged it into a different power bar to test; and it seemed fine. So when I redid the bench with the new PSU, I was confused to see that the issue had returned. Then it clicked; two different power bars. 
It's now several hours later, I've gotten no work done, and the entire bench has been ripped apart and put back together with all new power bars, network switches, and a few new USB hubs. 
I'm sure they're going to love seeing 3 hours of overtime and $200 in write offs tomorrow, but at least my monitor doesn't flicker anymore haha. 
 

[KarathKasun]

3 hours ago, TDP_Equinox said:

I'd tried that. It's more like the incorrect refresh rate was being used. 

I've got a new PSU plugged in, and so far it seems to have fixed the issue. 

 

Very interesting, but glad I made the topic as I didn't make the connection between dirty power and analogue display. 

I'll mark it as solved for now, thanks for the fresh eyes!

 

EDIT: This SORT OF solved my issue. The short version is, my PSU was fine, it was the power bar I had it plugged into that was bad. 
When I tried a new PSU, I plugged it into a different power bar to test; and it seemed fine. So when I redid the bench with the new PSU, I was confused to see that the issue had returned. Then it clicked; two different power bars. 
It's now several hours later, I've gotten no work done, and the entire bench has been ripped apart and put back together with all new power bars, network switches, and a few new USB hubs. 
I'm sure they're going to love seeing 3 hours of overtime and $200 in write offs tomorrow, but at least my monitor doesn't flicker anymore haha. 
 

Bad ground then, grounding is important with any equipment that uses analog signaling.