Thinkpad Yoga 12 BIOS update disables cooling fan

This sounds a lot like a prior thread about porblems with BIOS 1.08, but that thread ended up marked as solved, while for me the issue returned on the latest BIOS update to 1.12. My CPU temp got up to 92C without the fan coming on. Conclusion: there still seems to be some kind of condition where the BIOS completely disables all cooling. I think it's the same problem as that earlier thread, and it's clearly not solved. Thankfully it IS possible to get out of this state by rolling back the BIOS version to the one that worked, instructions are posted here and three posts below that for further clarification. Symptoms: you start noticing that the TPY gets oddly hot during normal use, or it experiences a forced shutdown due to overheating. It's also completely quiet. But: the fan itself is operational because you hear it briefly spin up during cold boot. Given that LoneSentry mentioned that the problematic BIOS 1.08 did work on second install, there seems to be some 'random' glitch in the update process or in the BIOS. Meanwhile I'm pretty unhappy that I'm having to do continued truobleshooting on this machine. Edit: going to the BIOS update page I saw that a newer BIOS was available (1.13), which you can install without having to disable Secure Rollback. Lo and behold. the fan is working again. The fan started blowing full speed right at the start of the EC flashing procedure. This is NOT a solution though, since this issue seems to have persisted until BIOS 1.12, and I have no reason to believe that it won't reappear on a future update.

paraloid wrote:
Well here I am on the new thread as well - and like heck the issue was resolved on the old thread. As mentioned before by myself and others on the other thread, I would update the BIOS, the fan would work for a while, then it would stop again until I updated the BIOS yet again.HOWEVER, thinking on this, and a variety of other problems I've been having with the TP Yoga (a whole lot - such buggy software), I remembered from my T61 days that the Lenovo System Update software is pretty hit and miss with finding updates. So I went to the Lenovo downloads page for the TP Yoga and indeed found a lot of software not passed onto me by the System Update.Amongst these was (TA-DA !) a utility "Lenovo Fan Test for Windows". I thought it would be useful to install in any case to test if the fan was operating properly (it was not part of the standard suite of diagnostic tools provided on my computer).Anyway since I installed it my fan has worked !!! - but only when my computer is plugged in, though this I believe is because I am using Lenovo Power Optimized (Lenovo Power Manager was another software on the site not provided to me via System Update) which I believe relies on passive cooling (throttling back processor) when only battery power is available. But now TpFan works all the time, though only in smart mode, and when I plug in the power to stream a video the computer doesn't reach boiling point and then shut down.Interesting. My fan diagnostic comes up as unavailable...

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1. Your computer model number. For assistance in locating this information, please reference this website: http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00033108
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Model: 20CD0032US
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Hi
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on Russian
Братья славяне помогите!
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I have been having the famous floating cursor problem using OneLink Doc and external monitor, mouse and keyboard. So I decided to run System Update (5.06.0034) to see if anything appropriate would inbstall. SU downloaded 4 fixes, and I selected all to install. The fixes downloaded, installation began and all fixes immediately showed "installation failed".
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I went to downloads and downloaded and manually installed Lenovo Power Management Driver and Lenovo Settings Dependency Package (restarts required).
I ran SU and it showed only the BIOS update needed. I tried again to install and got the same failure.
I went back to downloads and the only BIOS update was 1.08, not 1.24.1.24. I tried to install it anyway and the install failed due to "The process does not recognize this system. The process has been canceled."
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Hi schildpad00
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Thinkpad Edge E530 BIOS Update went wrong

I was updating BIOS using the utility given in Lenovo site. But it went wrong and my E530 is bricked. I'm planing to recover the BIOS using Phoenix Wincrisis .. But for that i Need the bios.wph file. I tried to extract the .wph file (using 7zip) from the Bios update .exe file given in lenovo site .. But I Cant find a .wph file in it.. It contains a [0] file.. Tried to extract that '[0]' file using 7zip. But 7zip cant open the archive. My E530 is still bricked .. Someone please help me as soon as possible. Thanks in advance

Hi Yasarharafath,
I am sorry for the delay in reply!
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Hope this helps.
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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BIOS Update - Disable Logon Password

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I have a message to download and install a BIOS upgrade. One of the instructions is to disable all logon passwords. My questions are: 1) Is this the password that I use to logon to the laptop?; 2) How do I disable this logon password?
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Yoga 2 BIOS update v38

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My tip is print off the instructions before you start so you can recognise the step by step process. It only lists seven steps but the Tech Support desk has others beyond that.(!/?)
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ThinkPad Edge S430: BIOS update utility for Windows 2.50

For anybody who wants to update to the latest BIOS released a couple of days ago (gauj10us.exe) and get this error:
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If I helped you, please give me some kudos! ^^

Hi Yasarharafath,
I am sorry for the delay in reply!
I am glad to hear that your system is now booting after using Phoenix Wincrisis Tool. But for this new issue suggest you to check with uninstalling ACPI adapter from the device manager. Remove the battery from the system & power on the system from connecting ‘Power Adapter’. Wait till the system boot completely and then go to ‘Device Manager’ then uninstall ‘Microsoft ACPI-Compliant Control Method Battery’ under battery option. After uninstalling shutdown the system, remove ‘Power Adapter’ and insert the battery then switch ON the system and check.
Hope this helps.
Best regards,
Hemanth Kumar
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Thinkpad E540. Bios update 2.09. Ctrl and Fn swap bug

When i updated bios to 2.09 i see in changelog
Added hotkey support for Fn+P(Pause)/Fn+K(ScrLK)/Fn+B(Left-Ctrl + Break)/Fn+S(Left-Alt + SysRq)
But this change is buggy. I use swapped Fn key and Ctrl. And key combination CTRL+S produces CTRL+ALT. Please fix.
Solved!
Go to Solution.

Maybe 2.08?

NEW BIOS UPDATE - Fixed buzzing sound from GPU?

It says it fixed the buzzing sound near speaker and battery when on battery power. Could this be the issue that people with the Intel Proccesor have when on battery power it makes a noise?

Hello,
I don´t exactly know, if the bios update disable C4 states, to prevent buzzing.
But if so, you´ll probably loose battery life, cause the cpu would´t get into lower power states.
May be the fan (link in german) will be running more often, to keep the Nvidia chip cooler, also.
I think if your TP suffers from whine, then give it a try or wait, till someone could tell us here
about his experience.
Message Edited by Agotthelf on 29-10-2008 09:59 PM
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I´m a volunteer here using New X1 Carbon, ThinkPad Yoga, Yoga 11s, Yoga 13, T430s,T510, X220t, IdeaCentre B540.
TIP: If your computer runs satisfactorily now, it may not be necessary to update the system.
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Thinkpad Yoga cooling fan issue

Hi,
my TPY had been working pretty well for several weeks but last few days I´m experiencing an annoying issue - the cooling fan doesn´t engage when TPY gets hot under load, even when the core gets to 100 degrees Celsius and all the bottom and right side of keyboard and palmrest is really very hot. The cooling fan seems OK, during BIOS update it engaged. There must have been some kind of recent "update" that messed it up. Any advices how to fix it, please?
Thanks, Tomas from Prague
P.S.: I´ve gone through the power management settings - the active cooling set on - no change. In the BIOS there´s no feature to control the cooling fan :/

I had very similar issues with the latest driver; device would disconnect, freeze, interfere with keyboard, display as "disabled" in device manager.
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Thinkpad Yoga 12 BIOS update disables cooling fan

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