Weird GPU artifcating help?

[UG6]

Before reading this, thanks for click on my post and for your help in advance. I purchased a newegg factory refurbished Gigabyte RTX 2070 a few weeks ago which was serving me very well. Before I started gaming last night, I tucked some PSU molex cables I had from in the middle of my case, to under my drive bay. So, when I got these screenshots, I thought I was dumb for taking a chance on refurbished PC hardware and messaged them asking for a replacement. This morning I started tinkering around with cables and realized the problem might've been the cable I tucked under the drive bay. After removing the cable tie and bringing that cable back to center, this issue stopped happening for a few hours. 15 minutes ago, I restarted my computer and had the same thing happen at the windows sign-in screen. However, this time it vanishes after a few seconds and my computer is back to normal. I like to think that I've resolved this, but I'd love to hear what you guys have to say about this? Things are acting normal as of now. I forgot to mention this above, but I my GPU is not overheating. It idles at 55 and the hottest I've ever seen it was at 71 Celsius.

[Juular]

Looks like your GPU are fond of Alien Invaders lol

On the serious note, that's either your refurbished GPU or this PSU which isn't even remotely good for this build, i suggest returning both.

[UG6]

Yeah, I've never seen this before. The problems seems to have went away though. I'll probably swap out the GPU just in case. What's wrong with this PSU? I've used it in other builds and haven't had any problems with it before.