[SOLVED] After playing GTA V Multiplayer for about 30-40mins , PC freezes and reboots automatically.

Solution
You may be able to overclock further but I'd make sure what you have now is stable through memtest. And yes 90C is too warm for the CPU, I'd dial back the overclock until temps are within reasonable range (preferably under 80C).

WildCard999

Titan
Moderator
List all of your specs including the PSU, also post temps (idle/gaming). Use AMD Ryzen Master for the most accurate temps for your CPU.
https://www.amd.com/en/technologies/ryzen-master

When you overclocked your memory did you test it to make sure it was stable? Going from 2400 to 3000 is quite the overclock and may not be 100% stable.
 
Mar 25, 2020
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List all of your specs including the PSU, also post temps (idle/gaming). Use AMD Ryzen Master for the most accurate temps for your CPU.
https://www.amd.com/en/technologies/ryzen-master

When you overclocked your memory did you test it to make sure it was stable? Going from 2400 to 3000 is quite the overclock and may not be 100% stable.
Specs:
Ryzen 3 3200g (+50mhz igpu core)
Msi b450 gaming plus max
HyperX Fury 2x4gb 2400mhz cl15 (OC 3000mhz cl15)
Corsair TX550M 550W
Stock Cooler - Stock thermal paste
This thing happens only in Gta. Although i checked temps and it reached around 90°C so i will consider to buy a tower cooler, a new thermal paste and some fans for the case since it's a new rig. I will try undervolting a bit and then overclock it until it reaches it's peak for that voltage. I will also test the memory out of curiosity and check if i can oc them some more. Any other suggestions?