Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

Gaming – Lenovo LegionGaming Laptops
All Forum Topics
Options

21 Posts

03-05-2019

Canada

28 Signins

144 Page Views

  • Posts: 21
  • Registered: ‎03-05-2019
  • Location: Canada
  • Views: 144
  • Message 1 of 22

Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-05, 2:43 AM

Just purchased a Y740 with the GTX 2060. During a typical gaming session (high settings or so), my CPU Package peaks at 98 deg C and averages around the low 80's. Is this too hot? Specifically the 98 deg peaks?

 

I tried disabling Turboboost, which peaksthe CPU temp at 77 deg and average at 72 deg. Is this my only route to lower the temps? (or undervolt).

 

Between disabling Turboboost and Undervolting, is one better than the other? Also, how do you know if the laptop is thermal throttling?

 

My GPU seems fine, max 78 deg and avg 74.

 

I am using HWinfo to monitor the temps.

Reply
Answer
Options

981 Posts

01-04-2018

United States of America

529 Signins

6741 Page Views

  • Posts: 981
  • Registered: ‎01-04-2018
  • Location: United States of America
  • Views: 6741

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-06, 8:15 AM
I was using XTU and it works well and all, but after a few days you'll find your undervolt has reverted back to the original settings. At least for me anyway. So I switched to throttlestop, but you can use either.

https://www.youtube.com/watch?v=PjCR4jMYTtQ&ab_channel=D2ultima

^In-depth tutorial (Long)

https://www.youtube.com/watch?v=sSY44PVaOs4&ab_channel=RandomPedestrian07

^Very quick tutorial (Short)

Basically, when you're undervolting your going to starve the CPU a bit by bit. Eventually, your computer will crash and you'll restart. From there, drop the voltage again but not as much and set it as your default profile. You should run a CPU stress test to make sure that the CPU is stable. Doing all this is a lot easier and faster on XTU, so I recommend doing it there. But then you can leave the final undervolt on in Throttlestop since XTU seems to constantly revert.
Reply

Replies(21)
Options

4771 Posts

12-11-2015

United States of America

4747 Signins

54602 Page Views

  • Posts: 4771
  • Registered: ‎12-11-2015
  • Location: United States of America
  • Views: 54602
  • Message 2 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-05, 3:19 AM

100° C is the max recommended temp for the Intel Core i7-8750Hm, which I believe is the CPU in your system, so if it is getting to 98°  C your laptop should be automatically throttling it back, and the cooling fans should running at max.     

 

Have you updated your BIOS, because the latest bios (Version AVCN16WW (V1.06)) appears to address issues with Intel's Intel Dynamic Platform and Thermal Framework (DPTF) and the fan speed control (Fn +Q) function, both of which effect cooling, and if you have not already, you might want to update to the latest device drivers too.

 

 

If you are still seeing high temps, you might consider a cooling pad similar to the one below to place under your laptop while gaming.

 

Cheers,

 

 

 

Reply
Options

21 Posts

03-05-2019

Canada

28 Signins

144 Page Views

  • Posts: 21
  • Registered: ‎03-05-2019
  • Location: Canada
  • Views: 144
  • Message 3 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-05, 3:58 AM
Yes, the 8750H is what I have. I updated the BIOS to the one you specified a few days ago. I will double check the other drivers, but the Lenovo software scan only showed the BIOS needed updating.
For now I will keep the turboboost off and see how that works out for a bit.

Reply
Options

981 Posts

01-04-2018

United States of America

529 Signins

6741 Page Views

  • Posts: 981
  • Registered: ‎01-04-2018
  • Location: United States of America
  • Views: 6741
  • Message 4 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-06, 5:35 AM

Get XTU or Throttlestop and undervolt your CPU. It should bring temperatures down. Other options would be to repaste and to check on CPU tasks and see if you have something eating away at it.

 

EDIT: While 100 degrees may be what the CPU can handle, your motherboard will certainly warp under the heat over time. It's important that you get the temperatures under control.

Reply
Options

21 Posts

03-05-2019

Canada

28 Signins

144 Page Views

  • Posts: 21
  • Registered: ‎03-05-2019
  • Location: Canada
  • Views: 144
  • Message 5 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-06, 8:09 AM
Thanks, is there a go to tutorial for undervolting? Never done it before. And any reason to use XTU over throttlestop or viceversa?
Reply
Answer
Options

981 Posts

01-04-2018

United States of America

529 Signins

6741 Page Views

  • Posts: 981
  • Registered: ‎01-04-2018
  • Location: United States of America
  • Views: 6741
  • Message 6 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-06, 8:15 AM
I was using XTU and it works well and all, but after a few days you'll find your undervolt has reverted back to the original settings. At least for me anyway. So I switched to throttlestop, but you can use either.

https://www.youtube.com/watch?v=PjCR4jMYTtQ&ab_channel=D2ultima

^In-depth tutorial (Long)

https://www.youtube.com/watch?v=sSY44PVaOs4&ab_channel=RandomPedestrian07

^Very quick tutorial (Short)

Basically, when you're undervolting your going to starve the CPU a bit by bit. Eventually, your computer will crash and you'll restart. From there, drop the voltage again but not as much and set it as your default profile. You should run a CPU stress test to make sure that the CPU is stable. Doing all this is a lot easier and faster on XTU, so I recommend doing it there. But then you can leave the final undervolt on in Throttlestop since XTU seems to constantly revert.

0 person found this solution to be helpful.

This helped me too

Reply
Options

111 Posts

01-01-2018

Lithuania

571 Signins

4944 Page Views

  • Posts: 111
  • Registered: ‎01-01-2018
  • Location: Lithuania
  • Views: 4944
  • Message 7 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-06, 13:09 PM

 wrote:
Thanks, is there a go to tutorial for undervolting? Never done it before. And any reason to use XTU over throttlestop or viceversa?

https://www.youtube.com/watch?v=yNt9L3BWOFo 

LENOVO Legion Y530. I7-8750h, Nvidia GeForce 1050 Ti, 16GB ram 2666MHz. SSD(128GB), HDD 1TB(7200RPM)
Reply
Options

54 Posts

07-20-2017

Bulgaria

243 Signins

954 Page Views

  • Posts: 54
  • Registered: ‎07-20-2017
  • Location: Bulgaria
  • Views: 954
  • Message 8 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-07, 9:56 AM

Hey.
1. When I first purchased my y720 I immediately started playing The Witcher 3 and my cpu would go 90+ degrees. I undervolted to -0,125 and had the thermal paste re-done and now I barely go over 60C. 
2. Never tried disabling turboboost. So if you do, let me know about the results :D
3. So far I have been only using MX-4 paste but next week I will try Grizzly Kryonaut since it gets soooo much positive feedback on the Internet and I will let you know about the results if you are interested :)
4. Don't waste money on cooling pads. I bought one with 4 fans and there were no changes in temps (ofc, it blows air to the panel on the outside , what get hot are the components from the inside :) ) I've read about some people drilling holes in the panel etc, but that will void the warranty so keep that in mind. The only airflow that helps is the one from ouside if your laptop is placed close to a window and you open said window. 

Cheers :) 

Reply
Options

16 Posts

12-11-2018

Netherlands

22 Signins

242 Page Views

  • Posts: 16
  • Registered: ‎12-11-2018
  • Location: Netherlands
  • Views: 242
  • Message 9 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-07, 14:23 PM

When undervolting, I would recommend you to use ThrottleStop over XTU. You can make a start up task in Windows task scheduler to automatically start ThrottleStop when you logon with your account in Windows.

 

That way your undervolt profile will always be used at startup.

 

I just undervolted my system and I went from 40-60 degrees Celcius to 28-40 degree Celsius at idle. I would advice you to not reapply your cooling paste before trying undervolting your CPU.

Reply
Options

21 Posts

03-05-2019

Canada

28 Signins

144 Page Views

  • Posts: 21
  • Registered: ‎03-05-2019
  • Location: Canada
  • Views: 144
  • Message 10 of 22

Re: Legion Y740 - CPU reaching 98 deg, too hot?

2019-03-08, 3:04 AM
Thanks for the replies everyone.

I will likely follow the long video posted by LelouchV and use throttlestop.

For now I have disabled Turboboost from the battery/performance settings in Windows 10, that alone dropped my temps about 10-15 deg.

I'll try Throttlestop and turn Turboboost back on for now, and leave the thermal paste as is, i'm sure this will solve my heat problems.
Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms