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R5 3600 - Is it normal for temps to go from idle to 80c immediately under test load?

Question asked by penguinactually on Feb 9, 2020
Latest reply on Feb 10, 2020 by penguinactually

I've just put together a new system which has done my head in with no post's or boot unless I wait 10-20 minutes after turning it off, or attempting a restart. Updating BIOS from 1804 to 2006, but possibly unrelated to this post.


Anyway, now it is running, if I open CPU-Z and run the default stress test (Wanting to compare to their FX 8350 'score'), temps in Ryzen Master and HW Monitor jump from idle, 44-47C to 80C within 1 second and climb about 1C every 10-20 seconds, then I stop the test and it drops back to around idle temps again very quickly.

CPU Fans go to 100% straight away too.

Everything is stock speeds, I don't care about overclocking in the slightest.


Is this normal behavior for these chips? Or could this be an issue with software or the motherboard / CPU?

Upgraded from an old X5650, so not sure if that's how these new chips work. 


Attached should be a 14 second video of what Ryzen Master and HW Monitor do when under load to give a better picture of what I am saying. Idle was up as I was doing other stuff as well in the background.




CPU:    Ryzen 5: 3600

COOL: Cooler Master Hyper 212 Evo

MOBO: Asus Prime B450M-A

RAM:    Hyper X 2x 8GB: 3200MHz

GPU:    G1 Gaming GTX 1060 6GB

PSU:    FSP Aurum 650W 80+Gold