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H370M-ITX/ac + i7-8700nonK = VR thermal throttling

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patrololo View Drop Down
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Joined: 09 May 2018
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    Posted: 09 May 2018 at 7:44pm
It's my first post, so hello everyone.

I've recently made my first build:
H370M-ITX / ac
i7-8700nonK
thermaltake V1 case
Cryorig M9i
2x8 G.Skill Ripjaws V 3000
1050Ti

I've got a problem with CPU throttling. When 8700 power draw is over 140W for few seconds throttling occurs. XTU says it's throttling due to VRM thermals. So I've set cpu offset -0.1V it stable, power draw is lower, but still during stress test or encoding, it's over 140W. IMO, V1 case has not a bad airflow (intake: 1x200mm and out: 2x80mm). Heatsink during throttling on vrm is hot, but not burning hot. Blowing another fan on vrm section helps but not much. Is there anyway to overcome this?

Here

https://www.tweaktown.com/reviews/8587/asrock-h370m-itx-ac-intel-h370-motherboard-review/index.html

test setup had a i5-8400 and author did not mention about any problems. In fact he said:

The H370M-ITX / AC's VRM is very good and will handle any CPU in a mini-ITX system.

But I believe 8400 has considerable lower power draw, so he didn't notice any problems. Please comment and give me some advices.
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