Fan not turning on

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Dell XPS 13 9360

Dell XPS 13 9360发布于2017年，拥有超窄边框以及Intel四核CPU。

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Crispy @crispy8034

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发帖于: 2021年10月15日

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Fan not turning on

I repasted the cpu and applied some thermal pads to the heatsink. Popped the chassis back on and when i fired it up i notice the fan doesn’t turn on. Ran a startup diagnostic and it reports the fan is functional. I’m wondering if I put too much insulation that the fan isn’t being triggered? The unit gets a little hotter on the bottom chassis but seems to run faster/doesn’t throttle as hard and core temp app reports lower temps. I would like the fan to turn on or at least know whats up, thanks.

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oldturkey03 @oldturkey03 声誉积分: 783.6千 1.1千 894 2.3千 · Answer 1 · 2021-10-19T14:52:22-07:00

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oldturkey03 @oldturkey03

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发帖于: 2021年10月19日

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Crispy for as long as your computer works appropriately, leave well enough alone ;-). you can always monitor the temperature with software like HW Monitor and Core Temp. At high load, temperature should be hovering between 83°and 90° with the fan running at low revolutions (a good fan will be barely audible). For a manual/custom fan control check on here It’s part of the Dell Power Manager.

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So i reached out to parts-people.com and asked them about this issue, they advised that the temperature sensor is in the cpu meaning that what is being reported by core temp is accurate. In essence placing thermal padding to the bottom of the heatsink is creating a passive cooling system by dissipating heat onto the bottom aluminum chassis. This is why the fan wasn't turning on, because it didn't need to! :) the chassis got really hot at high load but the cpu temp remained at about 75 celsius and clockspeeds were at peak (3.2ghz -3.7) with very little throttling. If you don't mind the chassis getting very toasty I highly recommend this homebrew modification!

由 Crispy 完成的 2021年10月19日

Crispy, good so all is well and things are working as should.

由 oldturkey03 完成的 2021年10月19日

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