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raeste

Member

Registered: 2011-10-01

Posts: 16

Lenovo T450s Fan turns often on

Hello,

i have a Problem with my Lenovo T450s. The Fan in the Notebook turns on very often. Its enough to open a new tab in my webbrowser and the fan starts spinning.
I use thinkfan to get a little control over the fan but it didn't solve the problem.
Did someone who uses this Notebook had the same problem?

lm_sensors tells me that the temperature of the cpu is around 40°. If i start a new application or open a new tab it increases to around 60°-70° for around 5-10 secounds. In that time the fan starts spinning. Sometimes it spins with around 4000-5000 rpm.

Thanks

raeste

smnpl

Member

From: Germany

Registered: 2015-01-07

Posts: 54

Re: Lenovo T450s Fan turns often on

Well, considering your temperature it makes sense for the fan to turn on and keeping that down manually with thinkfan seems like a bad idea in this case. I do have a T450S running Arch as well and don't face these problems. Maybe you could try using TLP as this is what I use for power management. Basic settings, nothing changed as far as I remember.

Last edited by smnpl (2016-01-29 12:18:49)

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The road to wisdom? - Well, it's plain and simple to express: Err and err and err again but less and less and less. - Piet Hein -

raeste

Member

Registered: 2011-10-01

Posts: 16

Re: Lenovo T450s Fan turns often on

I have the T450s with the Nvidia Graphiccard.
I have the TLP Package installed and running with the default settings.
And your T450s don't turn on the fan if you start an application or open a new tab?

Maybe a BIOS update could help? Currently i'm on Version 1.19. I try to update to 1.20

What's the current temperature of your cpu?

Last edited by raeste (2016-01-29 14:37:31)

smnpl

Member

From: Germany

Registered: 2015-01-07

Posts: 54

Re: Lenovo T450s Fan turns often on

Nope, the fan of mine is barely hearable in all situations (besides from clear high load situations of course). Mine does not have a dedicated NV graphics card though.

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The road to wisdom? - Well, it's plain and simple to express: Err and err and err again but less and less and less. - Piet Hein -

raeste

Member

Registered: 2011-10-01

Posts: 16

Re: Lenovo T450s Fan turns often on

The Problem is also that the cpu temp is still around 39°-47° which i found is a little bit high for normal webbrowsing. That the fan starts when i open for example Netbeans or Android Studio is ok but if i only browse the web is a little bit odd

PandaScience

Member

Registered: 2016-04-03

Posts: 1

Re: Lenovo T450s Fan turns often on

Any updates on that?
I'm facing the same issue, i.e. fan is turning on very often (~3800 rpm) as soon as temps are >48°C. This happens especially when playing youtube videos or opening new tabs in firefox or opera.
I also have the t450s version with the dedicated GPU. My idle temperature is around 45°C which I find a little too high.
Couldn't find anything useful on the web. Would be great if anyone could give some hints .