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fiacono1
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Posts: 9
Registered: ‎02-27-2017
Location: NL
Views: 3,200
Message 1 of 16

lenovo yoga 710 cpu temperature concerns

Hi all,

I recently bought the lenovo 710 14ikb, the i7 version. Overall very pleased with the look, feel and performance of the laptop. 

 

As many i did notice the excessive cooling and noise coming from the fan, in both idle state and when performing simple tasks such as photo viewing or opening multiple windows.

 

I tried updating the BIOS, didn't help( and can't find the advanced bios settings activation). I installed NBFS and this does help by manually controlling the fan speed not to go in full activity at the low BIOS set temperatures (at approx 50 degrees celsius).

 

Now that I have installed the fans, I keep an active eye on the cpu temperature through the monitoring icon provided by the NBFS tool and am concerned about the temp fluctuations. 

 

When starting the laptop, it boots ( plugged) at 35 degrees, shooting up to 60 degrees when activating all apps etc, then drops to an idle between 38 and 45 degrees. However any activity that requires a heavier load ( opening photoviewer/instagram) and multiple windows creates these spikes of temperatures rising up to 62 - 72 degrees celsius after which they come back down again. 

 

What's your experience with the cpu temp spikes with the 710? Are more users experiencing these temp spikes? I know it's relatively oke up to 100 degrees, and I am going to stress test the cpu, but it feels rather unstable.

 

 

 

 

fiacono1
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Registered: ‎02-27-2017
Location: NL
Views: 3,175
Message 2 of 16

Re: lenovo yoga 710 cpu temperature concerns

it Update:

 

Installed the second BIOS update that was mentioned on the forum.

 

Now with NBFC on read only status the fan indeed is not as active, so it appears Lenovo has adjusted the fan control on the temperatures. 

 

However, with the laptop in high performance mode , i opened Opera browser with youtube and three other windows and the temperatures are increasing to 75-83 degrees celsius. 

 

I believe we should be able to use the laptop at optimum settings without experiencing these unhealthy cpu temps. 

Could it simply be subpar quality of the fans used, the kaby lake cpu quality or is this a defect?

 

Retired Support Specialist
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Location: IN
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Message 3 of 16

Re: lenovo yoga 710 cpu temperature concerns

Hi there, Fiacono         -

 

Thank you for writing in to the Lenovo Forum - happy to have you here today.

 

In response to customer reports of unexpected fan noise on Yoga 710 system, Lenovo has released several solutions.

 

For customers experiencing buzzing fans or fans that make physical sounds like scratching on Yoga 710-14ISK and 15ISK systems, please contact Lenovo Service and reference Service TIP # SF16-I0026. The system will need to be serviced under warranty.

 

For customers experiencing loud fans on Yoga 710-14IKB and 15IKB systems, BIOS v.26 has been released. It makes minimal changes to fan speed and performance to reduce fan noise. It can be downloaded here: http://support.lenovo.com/us/en/downloads/DS118587

 

For customers experiencing loud fans on Yoga 710-14ISK and 15ISK systems, BIOS v. 22 has been released. It makes minimal changes to fan speed and performance to reduce fan noise. It can be downloaded here: http://pcsupport.lenovo.com/us/en/downloads/DS112987

 

If you do not know which model your system is, Lenovo invites you to use Detect My Product, supported by Lenovo Service Bridge.

 

For any fan issues not covered above, please contact Lenovo Service for assistance.

 

Update us how it goes.

 

 

 

 

Regards,

 

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fiacono1
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Location: NL
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Message 4 of 16

Re: lenovo yoga 710 cpu temperature concerns

Yes, i did flash to new BIOS. I mentioned in my second message that it seems to helped with the excessive fan noise. However, now that the fans aren't triggered at low temperatures, I am seeing quite substantial spikes in cpu temperature.

 

Is this cause for concern?

Retired Support Specialist
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Location: IN
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Message 5 of 16

Re: lenovo yoga 710 cpu temperature concerns

Fiacono, consider using app monitoring software like Process Hacker to see process that's eating up system resources, debug software and detect malware in the system. This should also show hidden processes that the normal task manager can't show.

 

Update us how it goes.

 

 

 

 

Regards,

 

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Retired Support Specialist
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Message 6 of 16

Re: lenovo yoga 710 cpu temperature concerns

Did the issue get resolved?

 

 

 

 

Regards,

 

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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

fiacono1
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Registered: ‎02-27-2017
Location: NL
Views: 3,021
Message 7 of 16

Re: lenovo yoga 710 cpu temperature concerns

thanks for inquiring. 

 

I have reviewed processes, and there do not seem to be clusters of unneeded background processes ongoing. The cpu peaks arise out of heavy load processes such as video of picture handling, and gaming. 

 

I have tested the cpu with prime95, and the temp creeps up to a maximum of 85 degrees celsius. With gaming there are spikes of 80 degrees, but coming down to an average of 65 degrees celcius. 

 

Are these temperatures not harmful to the laptop on the lang term?

alceryes
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Registered: ‎12-11-2010
Location: US
Views: 2,983
Message 8 of 16

Re: lenovo yoga 710 cpu temperature concerns

I had posted a nice 4 paragraph reply earlier but, apparently, the forum moster ate it, so I'll give a more condensed summary. 710-14IKB (i7-7500U).

 

The CPU's in ultrabook, tablets, and such are designed to heat up and cool down quickly, due to the limited room for thermal convection and conduction schemes.

 

Earlier, I performed a test with FurMark's CPU burner. I only had the generic driver apps running in the background and my ambient room temp was 20º. From boot (1 minute after desktop), I ran FurMark's CPU burner for exactly 2 minutes. Using SpeedFan for my temp monitor (CPU 0), my CPU started at 18º and then shot up to 50º, got to 55º thirty seconds later, and peaked at 60º at the end of the 2 minutes. When I stopped the burn my CPU dropped to 39º within 5 seconds and slowly crept down to the low 20's within thirty seconds. The CPU thermal spike is completely expected. The rapid cooldown shows that the thermal dissipation design is working as intended.

 

I have no intention to test my Yoga anywhere near the max Tjunction temp as I will never be putting that much load on the machine. Some MS Office suite apps, 10 browser tabs, some RDP/SSH sessions, and a few other apps like vSphere client, Hyper-V, WinSCP, etc. are all this laptop will ever face.

 

What temps do you get with the above test?

 

 

fiacono1
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Registered: ‎02-27-2017
Location: NL
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Message 9 of 16

Re: lenovo yoga 710 cpu temperature concerns

Hi and apologies for the late reply!

 

I am relocating to the UK and was quite busy the last couple of weeks.

 

Thank you for providing such a detailed response and I have tried the stress tests you mentioned to monitor CPU temperatures.

 

With the new bios installed, the fan now applies higher temp as triggers, which is noticable in the overall temperature spikes.

 

Simple windows activity and idle temps are currently between 38 and 45 degrees celsius. 

 

Any cpu high activity from windows updates, games or the stress testing( also did prime95) will increase temperature between 70 and 85 degrees celsius. The highest spike i have seen was on optimal performance settings during an issue where the system could not access the devices overview, and temperature increased to 88 degrees. 

 

The test you mentioned and prime95 all seems to hover between 78 and 83 degrees. 

 

Will the Tjunction is at 100% it still feels these temperatures will have a negative impact on overall health of the laptop in the long run.

 

I am curious to understand if these temperatures are common for this build, or perhaps I need to bring in the laptop for review by a technician.

alceryes
Token Ring
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Registered: ‎12-11-2010
Location: US
Views: 2,913
Message 10 of 16

Re: lenovo yoga 710 cpu temperature concerns

What's your ambient temp when burning in? Were you on battery or plugged in? How long did you run Prime95 and FurMark?

I do think that your 83º is a little on the high side but if you ran it for 15 minutes in a hot room that may be expected.

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