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What's DOS?
Posts: 1
Registered: ‎04-11-2010
Location: International
0 Kudos

Re: U450P fan constantly ON OFF!

Well you all not alone.


Its a comun thing with all the idepads, or at least the u450.


In my page this on and off is not all the time, but sometimes in happends. Still is of course sucks if you on a quite place.


... seriously.. what is this for a support?? I mean, is just a Script thing! nothing more nothing less...


This was my first and will be my last notebook from lenovo, because of such bad support.


And everyone willing to buy a lenovo will be warned.



Punch Card
Posts: 10
Registered: ‎01-21-2010
Location: GREECE
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Re: U450P fan constantly ON OFF!

I agree with you that Lenovo lacks about support, it is totally disappointing...


Paper Tape
Posts: 3
Registered: ‎07-30-2010
Location: Switzerland
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Re: U450P fan constantly ON OFF!

[ Edited ]

Same problem here, the fan is almost always on... Although it's not loud, more a whisper, together with the hard disk that has a similar problem and a higher pitch, it's annoying - especially as it's a silly problem! Smiley Mad

Serial Port
Posts: 40
Registered: ‎05-02-2009
Location: Germany
0 Kudos

Re: U450p fan constantly running


some weeks ago Lenovo released BIOS version 35 but it did not solve this issue. This fan cycling still annoys me a lot but obviously Lenovo does not care about it. The U350 has the same problem and a lot more persons complaining but also no solution from Lenovo. My next laptop will be a Dell I think (which is sad because apart from the fan I really like the U450p)

Paper Tape
Posts: 3
Registered: ‎09-03-2010
Location: France
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U450p fan run too easy = Noise

I buy my U450p for is ULV processor with TDP 10 w Smiley Happy


But Fan RUN , RUN, RUN more and more NOISE

Hard Drive RUN ,RUN also = NOISE








Paper Tape
Posts: 3
Registered: ‎09-03-2010
Location: France
0 Kudos

We Want Control speed fan for U450p

It's stupid to sell notebooks with ULV core with always a running fan .


No quiet surf   possible , a simple little javascript on the page and fan run max and NOISE .


No solution : with  no startup program , all services closed ,  minimum graphics résolution  fan always run


Mrs Lenovo are you stupid ?


If you don't make a bios or driver speedfan control ,it's possible !!!

Token Ring
Posts: 160
Registered: ‎10-30-2009
Location: Russia

BIOS patch for noisy fan is finally available

Hi guys. I've just created BIOS patch resolving noisy fan issue. You can download it in this topic.

Please leave your opinions about the patch there, not here.

Paper Tape
Posts: 3
Registered: ‎09-03-2010
Location: France
0 Kudos

Re: We Want Control speed fan for U450p


Open your Lenovo

Change HDD to Sansung SSD 830

Disconnect your FAN





IF you afraid  monitoring Tj max with CORE TEMP 1.0 RC 4