My build
| Motherboard/Case/PSU | ASRock DeskMini X600 |
| CPU | Ryzen 5 8600G |
| CPU Cooler | Noctua L9a-AM5 |
| Memory | Kingston Fury Impact DDR5-6000 (2x16 GB) |
| Storage | T-Force SATA SSD (256 GB) |
| Storage | Inland SATA SSD (256 GB) |
| OS | Fedora 40 (GNOME) |
| OS | Windows 10 |
The problem
The screen has flickering dots/pixels/artifacts.
https://imgur.com/a/ZMrmKvc
The symptoms
It's most noticeable when RAM is running at fast speed. At the default DDR5-4800, they're almost nonexistent. After setting higher speeds with in BIOS, they become more aggressive.
https://imgur.com/a/qV0J7yn
The workaround
I've found this solution on the Arch Wiki, but it's only for Linux, and only temporary, as it stops working after waking from sleep/suspend. The Wiki claims it's related to refresh rate, but that doesn't matter in my case, as it happens on 60 Hz monitors and 75 Hz monitors, no matter what rate is actually set.
I've tried to study what exactly this command does, and as far as I can tell, it sets "fclk" to 500 Mhz and "socclk" to 400 Mhz. I don't know if that's considered good or bad.
https://imgur.com/a/FxtU81T
What I've tried
- Reinserting the CPU and RAM, carefully checking the sockets for bent/damaged/dirty pins
- Using each RAM stick individually
- Different HDMI cables, VGA cables, and monitors
- Memtest86+ (passed without errors)
- Adjusting voltage and timings in BIOS, following this article and this Reddit thread (they're for the 8700G, but I assumed my 8600G was similar enough)
- Turning PBO on and off in BIOS
- Turning DDR Nitro on and off in BIOS
- Increasing VRAM size in BIOS
- Manually setting different FCLK values in BIOS (made the artifacts more aggressive)
- Reinstalling Windows and the oldest version of AMD Adrenalin (24.1.1) from the 8600G support page, in case the latest drivers are causing the problem on Windows
- Buying new RAM; I returned my original DDR5-6400 kit (which my videos were recorded with) and got a new DDR5-6000 one
None of these solved the issue.
Where I am now
Since replacing the RAM didn't work, I suppose it's either a problem with AMD drivers or something in BIOS.
There are many people on YouTube and Reddit who have a similar builds and they don't seem to have this problem, so I'm not sure what I'm doing wrong.
Hoping for any advice on how to solve this!
