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14 Posts

03-12-2018

DE

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Ideapad 720S-13IKB: Fan + Bios Update Stuck at 1,5 GHZ

2018-03-12, 9:38 AM

Hi all,

 

I just received the laptop mentioned above... and already stumpled other the very fancy soundy fan... it turns on early and it has a nice high frequency noise... very bad. I am used to the Yoga 720 and there a silent mode which was very helpful as it reduced the need of the fan overall (not heavy usage here).

 

2nd issue: Installed newest bios... and now the CPU is stuck at 1,5 GHZ and below... what the hell? I was wondering how that can be true (red it before in a test), that a bios available for quite some time can have such an issue. Lenovo?

 

I changed power modes, tried own energy plans and so on... stuck at 1,5 GHZ.

 

Best,

Andy

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4 Posts

03-10-2018

DK

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Re: Ideapad 720S-13IKB: Fan + Bios Update Stuck at 1,5 GHZ

2018-03-12, 9:40 AM

Lots of people are wondering, but seems like Lenovo won't answer this question. Deal breaker for me..

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4297 Posts

11-18-2012

US

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Re: Ideapad 720S-13IKB: Fan + Bios Update Stuck at 1,5 GHZ

2018-03-14, 14:21 PM


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14 Posts

03-12-2018

DE

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Re: Ideapad 720S-13IKB: Fan + Bios Update Stuck at 1,5 GHZ

2018-03-28, 13:29 PM

Hi all,

 

although I got no response here the issue with the CPU stuck at 1,5/1,49 GHZ is solved with the new BIOS. Thanks for that.

 

Unfortunately no quiet mode and still not able to control the fans with NBFC :( -> fan starts at 40° :(

 

Best,

Andy

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