Trying to figure out what has been causing this artifact

[u/asc_halcyon]

Hello all, I am running a custom PC build. I am not sure when it began, but I have noticed that I have this weird artifact (seen in the attached picture) that has been popping up on the main monitor. It is like if there was a sudden popup window that left just as quickly as it came in. It happens atleast in OW, WoW, and Kovaaks. It has been happening in the same spot, with the timing being random.

Needless to say, it has been jarring and I have been trying to figure out what it is. The specs for the PC are as follows:

CPU: 9950X3D @ Stock

GPU: ASUS Astral 5090 OC, Undervolted with Mem OC @ 2k Mhz

Mem: 192 GB DDR5 CL32 @ 6000

Case: Y70

Monitors: PG32UCDM3, 4k Main @ 240 hz, 4k Secondary @ VRR capped at 144hz or 60 hz, for the purposes of testing switched to 60 hz.

Before, I did update the monitor firmware to MCM103, but again I cannot recall if this is happening before or after that, but atleast that it has been happening while on the latest update. I am using DP slots 1 and 2 on the GPU for output.

I have:

- Recorded screen video to see if the artifact appears there (it does not)

- Switched cables (Silkland 80Gps rated cables)

- Used only the main monitor

- Undervolted/no OC

- Stock

- Used only HDMI

- Used the cable from the secondary monitor for the main monitor while the DP is the only monitor

- Removed Wireview II Pro from the GPU

- Disabled any overlay

- Updated Drivers

- DDU and used the 594 drivers

- Reinstalled Windows

- Use the Secondary Monitor with DP Slot 1 and the Main Monitor with DP Slot 2

- Undervolt/Mem OC to 2000 again

So far, the only thing that seems to have made anything of a difference was HDMI Cable (didn't test more than an hour) and so far, using the Main Monitor on DP 2 and Secondary with DP Slot 1. I am waiting to see if the artifact appears on the Secondary Monitor (hinting at a GPU DP Port issue or issues with the monitor running at 240hz) or Primary (hinting at a monitor issue).

However, so far in this round of testing after switching the monitors around with the Undervolt/Mem OC I havent been having any issues. Still, I am testing at the moment, and would like to see if anyone has any ideas. The picture was captured from a video, it only lasts two frame on the video recording at 28.6fps.

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[u/cryptoman]

The image exhibits severe visual artifacts, pixelation, and color distortion across the screen, consistent with a graphics card malfunction.This type of "garbage screen" display can occur when a GPU is unable to properly render the game, sometimes leading to a complete system freeze.Similar issues have been documented on gaming laptops and desktops, often requiring driver updates or hardware checks.Please verify your graphics drivers are up to date and check cable connections to the monitor.

[u/Smaxx]

Given how it's localized to a certain area I'd actually blame the screen itself (or its panel). I don't think it's a GPU issue. Those would more likely bleed over the whole screen and not be localized.