[SOLVED] TUF B360-PLUS + i7-9700k - VR throttling - System shutdown

Aug 28, 2020
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If I run the aida64 stress test on the CPU without any power limitations, the system shuts down immediately. But with power limitation on 145watt, it gets VR thermal throttling after a few minutes.

I could lower the core voltage a bit to make the maximum tdp ~130-140 watt. But VR thermal throttling is still there. I could run the aida64 test with 1.35v but in rdr2 I got the blue screen after 1-2 hours.
I also set the VR control line to level 1 and the VR frequency to the minimum (250khz).

I removed the heatsink beside the cpu socket to make sure it makes the contact with the components and everything seemed ok. That heatsink gets too hot. I tried adding 2 small fans (4cm) there and it didn't help. Actually there is no place to add a bigger fan because of my cpu air cooler (deep cool ice blade pro v2.0)
I was thinking of adding some extra heatsinks to the VRM but tbh I don't know where exactly I should add the heatsinks.

I don't want to upgrade my motherboard for now.
Any suggestions?
 
I could manage to put a temporary 6cm fan on the heatsink beside the cpu and it actually solved the vr thermal throttling. There is no extra place for me to put a fun to case but I will probably make a hole in top of the case for extra airflow.
 

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