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RageSmirk
Paper Tape
Posts: 3
Registered: ‎10-13-2018
Location: IL
Views: 589
Message 1 of 5

ThinkPad E480 Not Cooling Itself Properly

ThinkPad E480

Model Type: 20KN

BIOS: 1.24V

Windows 10 with latest drivers

 

The problem: The laptop's fan doesn't spin thus the laptop's bottom is very hot.

 

What I need help with: I need a way to disable the fan's shut down feature.

 

Please do not misunderstand, my fan can spin but it will spin briefly when I power on the laptop then when the Windows appears my fan won't spin anymore. I've found a program that can control the fan speed but it's only a partial solution!

 

Any help appreciated.

SeniorGuru
Posts: 2,719
Registered: ‎12-22-2008
Location: CA
Views: 542
Message 2 of 5

Re: ThinkPad E480 Not Cooling Itself Properly

Welcome to the forum.  Modern ThinkPads are designed to run the fan only when temperature levels get high enough to require this cooling. The fan speed also varies as temperature dictates. This is intended to reduce noise as well as wear on the fan.

 

So it's entirely possible that the fan behavior you're seeing is quite normal. It would be helpful if you could post the actual temperatures the E480 is encountering. One free tool to view these is Speccy. Click on the CPU and Storage tabs to get measurements, both when the fan is off and when it comes on.

__________________________________________________
Cheers... Dorian Hausman • ca.gif English community
X1C6, E470, Y900s, [R.I.P. X1C2, T430s, TPT2, SL500, X61s, T60p, A21p, 770, 760ED... 5160, 5150... S360/30]
RageSmirk
Paper Tape
Posts: 3
Registered: ‎10-13-2018
Location: IL
Views: 485
Message 3 of 5

Re: ThinkPad E480 Not Cooling Itself Properly

Sorry for replying so late, the CPU temp reaches 54 °C.
And the laptop's bottom is very hot.
Fan won't spin.
Any solution?
SeniorGuru
Posts: 2,719
Registered: ‎12-22-2008
Location: CA
Views: 460
Message 4 of 5

Re: ThinkPad E480 Not Cooling Itself Properly

A temp of 54°C seems reasonable to me, especially if the system is doing some work. This also depends on the CPU and GPU installed in the particular E480 model.

 

That the fan never seems to spin is more troubling, especially when others are complaining about excessive fan noise. This lengthy thread may provide some additional insights and suggestions about this issue. For example near the end a poster points out that the E480 lacks some venting that similar models like the T480 have.

 

Thinkpad E480 heat and fan noise issue.

__________________________________________________
Cheers... Dorian Hausman • ca.gif English community
X1C6, E470, Y900s, [R.I.P. X1C2, T430s, TPT2, SL500, X61s, T60p, A21p, 770, 760ED... 5160, 5150... S360/30]
RageSmirk
Paper Tape
Posts: 3
Registered: ‎10-13-2018
Location: IL
Views: 455
Message 5 of 5

Re: ThinkPad E480 Not Cooling Itself Properly

Everything is on low power, Power Management and Intel driver too.
On the contrary, when I run something heavy that makes the CPU busy only then will the fan start to spin.
So why Lenovo makes the fan dependent on CPU utilization instead of temprature??
Please help! My lap is burning and my sweat is pouring like buckets, IS THERE ANY SOLUTION FOR THIS?

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