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cooljedi
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Posts: 7
Registered: ‎11-04-2018
Location: PL
Views: 421
Message 1 of 8

Y910-17ISK heatsink, fans, thermal issue

Hello,

I'm the owner of Y910-17ISK with I7-6820HK and GTX 1070. I am using this laptop almost 2 years and there are topics I wanted to discuss on forum with Lenovo and others. I have few observations, 1 question and 1 big proposal.
 
After some time I realized that laptop face overheating issue which causes as called "thermal throttling" issue.

 

a) Observations

 

1. First of all, I followed the advices to undervolt the CPU about -150mV and this helped in terms of CPU overheating.


2. Another thing is GPU which also can be undervolted and set for maximum possible clock set for some lvl of voltage. Like for example: 864mV - 1743 Mhz.

With those values, laptop after many hours of gaming is about 75 Celsius which is almost similar to CPU, GPU probably because heatsinks are connected together for those.

Thing that I don't understand is to put TURBO BOOST button and option which OVERCLOCK both CPU and GPU. With the newest BIOS and replaced fans (of course by warranty service) for Sunon Maglev models - fans are running FULL 100% when using TURBO BOOST.

Unfortunately still in this case both CPU and GPU are warming up to <90 Celsius. Of course it causes thermal throttling and floating of CPU and GPU clock.

b) Question
I wanted to know what is the temperature limit for CPU and GPU, which causes thermal throttling? Is it also possible to release new BIOS version, which will unlock this option in BIOS so others and me can for example:

 

During undervolted stage of CPU and GPU increase a bit level of thermal limit to set better clock when running 100% fans (without thermal throttling) to use best possible performance still being under 80-85 Celsius which is quite safe for CPU and GPU?
I want to remind that using of TURBO BOOST causes even 95 Celsius which is not safe!!!

 

c) Proposal

I was thinking about heatsinks in this laptop. In my opinion, there is a place and possibility to change and upgrade this cooling system and release for example: replaceable heatsink upgrade for better thermals and performance.

I believe that adding a kind of "evaporation chambers" on both GPU and CPU and in this case separate heatsinks could help to reduce temperature. Thing is that evaporation is a process that is reducing temperature a lot form the surface. There would be also much more fluid inside those chambers and heatsinks accordingly which can dissipate this temperature. If we look at the picture below with the newest type of heatsinks in this laptop, there is a place to re-design and put some better cooling which could be sold additionally for current owners.

 

evaporation.png

I would like to discuss this topic with other users (customers) and Lenovo itself. Lenovo do not have to be a cheaper brand that selling compromise solution. You can make it the best upgradable laptop for the best price on the market Smiley Happy.

Best Regards
Piotr

 

Masowiecki
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Message 2 of 8

Re: Y910-17ISK heatsink, fans, thermal issue

Hello everybody,

 

This topic looks very interesting, since I'm a user of the same exact same model of laptop. I had registered my account here on forum trying to find answers in very same topic - FPS drop and stuttering.

 

I do admit, that during last weeks i had observed increased temprerature in my device, causing FPS drop during gameplay. I was wondering what was the reason of that and i can see, as cooljedi observed - increased temperature. After i had installed Intel Extreme Utility (found this undervolting stuff) - i see indicator of "thermal trottling" even, with -140mV set on CPU. I did not know so far that GPU can be as well undervolted.

 

Can somebody explain me what is the reason standing behind this? I had chosen Lenovo as my device, thinking that it's best on market, but now having this issues really makes me wonder if i had chosen correctly.

 

What cooljedi wrote makes sence, can somebody give thier opinion?

 

KR

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Message 3 of 8

Re: Y910-17ISK heatsink, fans, thermal issue

Hi cooljedi,

 

Welcome to the Community Forums.

 

Regarding the temperature limit set by the BIOS, among idealine products such are OEM presets. This would be internal information (perhaps modders can check but OEM do not advise this for the risk of bricking the board).

 

System firmware on itself would automatically adjust needed settings as needed and likewise shuts down automatically if any unsafe performance is triggered. Fellow members and guru from this topic suggested some ways to help. Reapplication of thermal paste (those you have trusted as best) and using bottom coolers are other ways.

 

Our Community appreciates other proposals too for future updates and models where you can post on this Community board category.

 

Regards



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cooljedi
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Message 4 of 8

Re: Y910-17ISK heatsink, fans, thermal issue

Hello,

First of all thank you for the answer.

I want to establish some mutual understanding to our knowledge and expirence with laptops/PC so with all respect:

1. Fan control and temperature limit.

 


@spidey101

Regarding the temperature limit set by the BIOS, among idealine products such are OEM presets. This would be internal information (perhaps modders can check but OEM do not advise this for the risk of bricking the board).


Everyone who is interested in in this kind of gaming advanced equipment knows that there is possibility to control (fans speed, temperature limits etc.). People had many problems regarding fans working on idle and now me and many other users are facing problems with temperature limits that causing thermal throttling.

There is strong need to add possibility to control fans and make own "curve" to control them through "MSI Afterburner" or simply "FanSpeed" software. I want to remind that other brands are allowing this options in BIOS like MSI or ASUS.


Another thing is as I mentioned before set the higher temperature limit. During undervolting of CPU and GPU there should be posibility to set higher temperature limit to adjust clock and voltage to the best possible level through MSI Afterburner. CPU limit seems to be set on 85 Celsius, which is quite fine, but GPU limit seems to be 75 Celsius and it's too low so causing thermal throttling too early.

 

This brings me to the question why to put Turbo Boost option and even button with such a low limits. If we are talking about safety then why this option puts CPU AND GPU on 95 Celsius wich is very high and dangerous?! Smiley Very Happy. People who adjusting thier Laptops/Desktops are not childrens and knows how to deal with this kind of equipment.

 

2. Thermal paste and bottom coolers.

 


@spidey101

System firmware on itself would automatically adjust needed settings as needed and likewise shuts down automatically if any unsafe performance is triggered. Fellow members and guru from this topic suggested some ways to help. Reapplication of thermal paste (those you have trusted as best) and using bottom coolers are other ways.


I really know how to deal with kind of equipment. I'm always using bottom coolers to provide proper air flow to laptop fans inside.

Some time ago I sent my laptop with problem of 1 fan (bearing was loud) and to repaste laptop just in case. Whole service procedure was fine instead of service itself. They replaced fans for new Sunon Maglev models which is good and working more quite. Unfortunately they did't or repaste CPU/GPU badly so I was facing 95 Celsius during load or more and 60 Celsius during Idle.

So I re-paste laptop by myself (if service cannot Smiley Happy ) and after this temperatures are normal. Thing I want to say is that my laptop is kept in the best possible condition (dust removal, re-paste, cooling pad, udervolting of CPU and GPU to stay on lower temperatures). In this case I want to move forward with this conversation to real problems like control of fans and temperatures limit from BIOS or additional cooling system Smiley Happy.

I really don't want to blame anyone or slandering brand but I paid for this LAPTOP 1800 euro and I it's not even 2 years I have it. My point is that Lenovo can put some effort and at least update the BIOS to unlock the temp. limits and fan control.

About additional cooling system I want to continue. I will put my proposal in next post so everyone can see the idea standing behind this topic.

BR
Piotr

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Message 5 of 8

Re: Y910-17ISK heatsink, fans, thermal issue

Hi cooljedi,

 

Greetings.

 

The OEM limitations are agreed by the engineering team on what they think is best for the users on this model. This does not limit other users specially the enthusiast modding things up to their preferences (not recommended due to risk of bricking the board). 

 

There are models that allows such changes configured (mostly thinkline products). A special board category (lenovo technologies) is dedicated for suggestions and proposals for any future changes.

 

Regards

 

 



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cooljedi
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Message 6 of 8

Re: Y910-17ISK heatsink, fans, thermal issue

Hello,

Yes I will continue cooling system discussion in lenovo technologies category as I will need some informations to my modification idea.

I just wanted to repeat my question about Turbo Boost because as you wrote:


@spidey101

 The OEM limitations are agreed by the engineering team on what they think is best for the users on this model.


So I want to know what was the idea to put Turbo Boost to overclock both CPU and GPU and at the same time to put low Termal Limits (about 85 Celsius CPU, 75 Celsius GPU with newest BIOS),  whitch causing 95 Celsius degrees and insta Thermal Throttle for both of them.

I can't understand what's the purpose of putting this option and face throttling whitch means insta (suttering) during gaming and damaging CPU, GPU when used by unexpirienced users.

 

What was the idea of engineering team? Smiley Very Happy

Is this only about marketing purposes?

BR
Piotr

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Message 7 of 8

Re: Y910-17ISK heatsink, fans, thermal issue

Hi cooljedi,

 

Greetings.

 

Turbo boost is an added feature to overclock the processor to boost the performance in needed operation.

 

If you have feel that the machine have significant overheating or throttle then best to report it to technical support specially if you have already updated your drivers and Windows updates.

 

Regards



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cooljedi
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Message 8 of 8

Re: Y910-17ISK heatsink, fans, thermal issue


@spidey101 wrote:

Hi cooljedi,

 

Greetings.

 

Turbo boost is an added feature to overclock the processor to boost the performance in needed operation.

 

If you have feel that the machine have significant overheating or throttle then best to report it to technical support specially if you have already updated your drivers and Windows updates.

 

Regards


Hello,

But when Turbo boost being used laptop is always overheating and causes thrermal throttling 95 Celsius!! both GPU AND CPU. Do you claim that all users of Y910-17isk should send thier machines for service because of badly designed cooling system? Why not Smiley Happy

BR

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