01-23-2017 06:02 PM
Nothing in those screen shots indicates any reason the fan would need to be running. I have more going on that that and the fan is idle. If you have a fan running with that level of CPU use, something else is going on.
01-24-2017 01:17 PM
i am also having issues with this fan noise.
the fan noise is loud when i browse on microsoft edge
has any got any solution to this problem from lenovo
i have got 14 days to return
can you advise please
01-24-2017 02:11 PM
Didja read through this thread and apply the fixes?
What websites give you louder fan noises? There are a lot of websites with video, animation, and just plain bad code that will cause any processor to work harder.
01-24-2017 02:40 PM
With the WLAN or while removing the WLAN, I still get a single daily slow/lag/freeze. the laptop kinda slows down and crawls, and then all goes away after restarting. is this connected to the DCOM issue we all experiencing, is there a driver that does NOT reinnstall the 'installer' file? I tried the one on Lenovo site and it immediately adds the installer back.
01-25-2017 05:04 AM - edited 01-26-2017 01:21 PM
Lenovo has released a BIOS update with a new feature called Quiet Mode to provide a quieter fan experience for customers with Yoga 910-13IKB and 13IKB Glass laptops. Please note that this is a two-step process. After updating to the BIOS v.35, it will be necessary to then go into the BIOS and enable Quiet Mode.
Quiet Mode achieves a lower overall fan volume by making minimal changes to CPU performance and system temperature.
Modify thermal and DPTF setting, add Quiet Mode.
BIOS v.35 can be downloaded here: http://support.lenovo.com/us/en/downloads/DS119202
For customers experiencing a continuously running fan on Yoga 910-13IKB and 13IKB Glass systems, please upgrade to the latest WLAN driver, v. 126.96.36.1998. It can be downloaded here: http://support.lenovo.com/us/en/downloads/DS119197. If this does not change the fan behavior, try uninstalling the Qualcomm Atheros WLAN Installer, then reinstalling the driver.
The Qualcomm Atheros WLAN Installer can be found in Settings -> Apps -> Qualcomm Atheros WLAN Installer. Select it and then right-click to open a menu. Select Remove It. Restart the system.
For customers experiencing a fan whistling or whine noise, the investigation continues. I would like to hear from customers who have upgraded to BIOS v.35 but continue to hear this distinct fan sound.
I am marking this post as the solution to allow customers joining the discussion to easily find solutions for two of the three reported fan issues. I will post again when I receive an update on the fan whistling/whine investigation.
01-25-2017 05:49 AM
Awesome, just tried it out, and it's working great. Thanks Amy!
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01-25-2017 10:49 AM
I've had an opportuniy to run some tests with the new BIOS and quiet/balanced/performance modes and have some very intersting results but a question at the end.
For testing purposes I ran msconfig.exe and restarted by machine in diagnostic mode so all extraneous services had been stopped. I then ran a number of different tests using each of the modes selected in the BIOS. Here are the results:
1. Visual Studio Solution Build (each time I clean the build.) This is a real-world test of the sort of thing I do throughout the day and usually drives the fans mental (but not on my 3 year old Yoga 2 Pro which is as quiet as a mouse)
2. Performance Test from which I only ran the CPU benchmark
So, great news, Quiet seems like a real win.
However, when I used msconfig.exe to get back to normal and have all my services running again I discovered a couple of weird things:
So I'm left with a question. Is there a service that's limiting the performance of the CPU? And whilst I'm here - is this anything to do with the constant logging of the following in the event log:
The speed of processor 3 in group 0 is being limited by system firmware. The processor has been in this reduced performance state for 71 seconds since the last report.
which is being logged by Microsoft-Windows-Kernel-Processor-Power.
Amy, I hope my findings above are useful to you. My initial feelings are you've done some great work on getting this BIOS written and I'm very grateful. I still get the feeling the fans themselves are a little noisy (especially compared to the Yoga 2 Pro) but at least now they're not spinning up quite so fast now.