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botty1963
Paper Tape
Posts: 1
Registered: ‎03-19-2019
Location: GB
Views: 174
Message 1 of 2

T470s fan when on AC power

I have a T470s with 20GB of RAM. I have noticed recently that my fan is on all the time when on AC Power, and checking the task manager the CPU is normally running at between 30% and 40%. I ran all the updates yesterday, and today the power configuration patch but still the same. If I remove the power cord then the fan stops.

aUserHasNoName
802.11n
Posts: 215
Registered: ‎06-26-2016
Location: DE
Views: 133
Message 2 of 2

Re: T470s fan when on AC power


@botty1963 wrote:

checking the task manager the CPU is normally running at between 30% and 40%.

CPU utilization might be misleading here.  I would check the reported CPU speed in task manager.  Maybe it's  been clocked at max speed all the time when system is connected to AC?

Please check also the power settings for windows and in you video driver (Intel?). Any chance you've set it to 'maximum performance' when on AC?

 

 

 

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