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Ryzen 5 3600 reaching 95C within seconds of stress test

Question asked by subhadeep on Jul 12, 2020
Latest reply on Oct 12, 2020 by porosus

Today I got a Ryzen 5 3600. Installed it in Gigabyte B450 Gaming X board. At first I tried to use an aftermarket cooler - the Antec A30. It overheat immediately in stress test and clocked down to 3.6 GHz. Then I tried the stock cooler. Same problem. Within seconds of Prime95 or OCCT, the CPU reaches 95C limit. The CPU idles at 48C, case open, ambient temp 26C. Normal browsing temps at 63-68C.

I emptied my whole syringe of Arctic MX 4 by removing the cooler, reseating it with different amounts of thermal paste - the pea size, the X pattern and what not - 6 times! Everytime it's all the same temps.


I'm frustrated. My old Intel i5 3570 22nm never went beyond 75C under hours of stress test. 


The BIOS CPU setting is set to all default, (AMD cool quiet enabled), all auto, latest BIOS, no overclocking, and the CPU fan is set to run at full speed (it runs at 2500 RPM). My other specs: 550W Antec PSU, GTX 960 GPU, 8 GB Corsair RAM 3000 MHz.


I'm beginning to think the package is loosely fitted with the die from manufacturing. 


Please help. Should I RMA the processor?


Screenshots attached for temps and voltage