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rup00000
Punch Card
Posts: 11
Registered: ‎12-02-2016
Location: US
Views: 299
Message 11 of 13

Re: P70 super loud and sudden fan noise

Thanks for the reply.

 

I haven't performed other tests to pinpoint what the culprit is, but I highly doubt the web pages were at fault here. I use an extension "Great Suspender" which suspends inactive tabs on Google Chrome (the only browser opened during which the problem surfaced) and a few tabs that were not affected by this extension were simple, text-based pages that did next to nothing in terms of CPU usage. 

 

I only have Windows Defender as my anti-virus program, and the programs that were running (just opened, idling) at the time include HWMonitor, a torrent client with no torrent file, and two paused videos, none of which uses much CPU according to the task manager (0.2% for HWMonitor and 0% for the other two).

 

However, I did discover something off on the Task Manager; there are four Windows Explorer (32 bit) tasks which comprise at least 10% of CPU usage at any given time, spiking up to 25% at whim. This has to be the reason why the fans spin and the temperature rises, though I have no idea why there are four of them and why they fluctuate so much. I'm sure they will stay there until I restart the system (sleeping did nothing).

sagavera
Paper Tape
Posts: 3
Registered: ‎01-25-2020
Location: US
Views: 76
Message 12 of 13

Re: P70 super loud and sudden fan noise

I know it's bee a few years, but my new ThinkPad P52 does the same. out of nowhere full blast for 2-3 seconds and the goes silent again. using fedora 31...

5thduke
Token Ring
Posts: 64
Registered: ‎07-23-2016
Location: NZ
Views: 53
Message 13 of 13

Re: P70 super loud and sudden fan noise

i think you will find lenovo active protection and intelly cooling is doing it ,can be uninstalled easily

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