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Journeyman III

Random restarts after new Ryzen 5 5600x


Recently I upgraded my CPU from Ryzen 5 1600 to Ryzen 5 5600x but I'm getting random black screen restarts. I managed to fix it by manually setting up CPU Frequency and Voltage(VID) Change in BIOS. When this setting was on Auto, my PC randomly restarted, sometimes after 5 hours sometimes on lock screen it is completely random. Everything goes black, screen, mouse and keyboard. After setting this setting to manual values: 4500 MHz and 1.4V my PC is running fine. (I can also use different values: I tried 3700 MHz and 1.3V etc.)

I know it is not overheating because it is running at 50 celsius on idle and max 80 when gaming.

I was also getting this WHEA EVENT ID 18 in Event Viewer.


To troubleshoot I tried: switching PSU-s (750W and 650W)

turning off and on PBO and XMP

switching Windows power plans

fresh installation of Windows 10 and 11

updating BIOS and Chipset for my motherboard

I really don't know why I can't run it on Auto settings.

Also I really want to know what values are best for my CPU (Ryzen 5 5600x) and my motherboard (ASRock B450M Steel Legend.)


If needed rest of my PC: 2x8GB HyperX Predator 3200 MHz

Thermaltake 600W PSU

Sapphire Nitro+ RX 580 4GB with latest drivers

Samsung 970 Evo Plus NVMe 500GB



I really hope you can tell me what is wrong with my PC and how can I fix it.

Also, is my CPU healthy or should I do RMA?


Thanks in advance


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