Dead VRAM? How to test?

[Sprcket]

Specs:

Asus R9 270x GPU

Asus M5R97 R2.0

AMD FX8300 (tried with and without stable OC applied)

8Gb Kingston Ram

Thermaltake PSU

Windows 10 Build 16299.rs3_release.170928-1534

 

A few hours ago I was playing Dead Space 2 and suddenly both my screens went dark (still receiving a signal, but dark). PC Froze completly. 

 

On restart, I entered BIOS and noticed two vertical glitchy stripes of video (hard to describe, check pictures please).

 

Windows would not boot outisde safe mode.

 

After that, managed to get into windows in Safe Mode, and the same glitchy stripes appear.

 

What I've done so far: 

-Reseated every single component in this PC, (including GPU), except the CPU.

-Tried multiple monitors with the following results:

Monitor 1: 1360x768 VGA with DVI->VGA adaptor: Two thick glitchy stripes.

Monitor 2: 1920x1080 HDMI: A lot of glitchy stripes, simmilar to the ones on Monitor 1.

 

NOTE: While Monitors are "duplicated", like in the UEFI, stripes are the same shape and location on both monitors, I think it has something to do with resolution, as in the first few photos monitors run at 1024x768 or something like that. 

 

 

 

 

If anyone has any idea on what could be going on, please leave a comment on this thread.

 

Thanks in advance!

 

[Sprcket]

Update: Did a reflow on the GPU's processor and now it's back to normal.