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

6 Posts

12-03-2019

United States of America

5 Signins

57 Page Views

  • Posts: 6
  • Registered: ‎12-03-2019
  • Location: United States of America
  • Views: 57
  • Message 1 of 15

CPU Temps 60-80 & Spiking to 96 After Undervolt

2019-12-03, 16:40 PM

Just got my new 15" Y740 in the mail running the 9750H, 16GB RAM, 2070 GPU.

 

I immediately downloaded HW Monitor and started a stress test using Aida64. I was able to undervolt the core and cache to -165 while running Aida64 with no issues. I also have the fan speeds at max. However, when observing my CPU core temps, they are fluctuating between mid 60s to high 80s while the CPU package is getting spikes at 96. Should the temps be jumping around this much? All the guys I've seen that undervolt usually have a steady temperature range with no spikes like I am getting.

 

Does this sound like a bad paste job and/or uneven pressure on the CPU? Would you recommend repasting? I just don't want to repaste only to see no change and void my warranty.

Reply
Options

601 Posts

08-01-2018

United States of America

409 Signins

10530 Page Views

  • Posts: 601
  • Registered: ‎08-01-2018
  • Location: United States of America
  • Views: 10530
  • Message 2 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-04, 13:59 PM

Hi icer22x!

 

Apologies for the delayed response. Are you still having temperature issues on your computer?

 

Let us know.

 

Regards,

Jerry_Lenovo



Did someone help you today? Press the star on the left to thank them with a Kudo!
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.

Follow us @LenovoSupport on Facebook and Twitter!

Reply
Options

6 Posts

12-03-2019

United States of America

5 Signins

57 Page Views

  • Posts: 6
  • Registered: ‎12-03-2019
  • Location: United States of America
  • Views: 57
  • Message 3 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-04, 14:05 PM

No. I realized it was caused by the AWFUL factory pasting job. It was caked on so much it was pouring off the CPU/GPU heat sync onto the chip itself. I repasted it myself and it drastically lowered the temps.

Reply
Options

0 Posts

02-04-2020

United States of America

0 Signins

0 Page Views

  • Posts: 0
  • Registered: ‎02-04-2020
  • Location: United States of America
  • Views: 0
  • Message 4 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-04, 17:32 PM

For anyone interested, I just wanted to post that I had similar temperature spikes as the OP; same build Y740 as well. I went ahead and did a repaste using Kryonaut - thermal grizzly. As expected, based on prior posts and videos, the thermal paste from the factory was over applied. So far after the repaste, my temps have been much more stable. Obviously this is just a quick intial review of it, but at least I'm no longer seeing the immediate core thermal throttling.

Reply
Options

6 Posts

12-03-2019

United States of America

5 Signins

57 Page Views

  • Posts: 6
  • Registered: ‎12-03-2019
  • Location: United States of America
  • Views: 57
  • Message 5 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-04, 19:05 PM
Eric326, I used the same paste. Highly recommend. Shame on Lenovo for this awful paste job. For something that is so easily applied, I was upset when I pulled the heat syncs to find that atrocity. It looked like my kid's toothbrush when he tries to put toothpaste on it (parents will understand). For the price I paid for this machine, I expect a bit more attention to detail.
Reply
Options

0 Posts

02-04-2020

United States of America

0 Signins

0 Page Views

  • Posts: 0
  • Registered: ‎02-04-2020
  • Location: United States of America
  • Views: 0
  • Message 6 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-05, 13:22 PM

I agree, I do wish that Lenovo would have done a better job from the factory. Although I don't think this issue is necessarily only with their brand, seemed to be similar with people on the Alienware side too; not to say that's a valid excuse. 

 

On the positive side though, I wish I had done the re-paste sooner. The layout and build of the Y740 was nice and simple, I definitely appreciate that over seeing some of the other designs like the Asus having an inverted motherboard, requiring a lot more work to do a re-paste. As long as the temps stay what they are now, I'm much happier with the thermal performance from this machine.

 

On a side note, I now see temperatures much closer to a lot of the Youtube video reviews that talked about good thermals on this machine. 

Reply
Options

6 Posts

12-03-2019

United States of America

5 Signins

57 Page Views

  • Posts: 6
  • Registered: ‎12-03-2019
  • Location: United States of America
  • Views: 57
  • Message 7 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-05, 19:36 PM

Agreed. I do appreciate the layout of this machine. To be honest, I never have owned a machine that had a good factory paste job. 

Reply
Options

0 Posts

02-15-2020

United States of America

1 Signins

5 Page Views

  • Posts: 0
  • Registered: ‎02-15-2020
  • Location: United States of America
  • Views: 5
  • Message 8 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-15, 15:40 PM

Hi,

 

I tried repaste using Kryounaut, and still have high temp above 94C in AIDA64 Strest Test. Can you share what you did?

Reply
Options

0 Posts

02-04-2020

United States of America

0 Signins

0 Page Views

  • Posts: 0
  • Registered: ‎02-04-2020
  • Location: United States of America
  • Views: 0
  • Message 9 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-15, 15:54 PM

Just curious for an apples to apples comparison of temperatures. What option/combination of options are you selecting when you stress test on AIDA64? 

 

Sorry if I missed it on a prior post...using a phone browser this morning. Thanks.

Reply
Options

0 Posts

02-15-2020

United States of America

1 Signins

5 Page Views

  • Posts: 0
  • Registered: ‎02-15-2020
  • Location: United States of America
  • Views: 5
  • Message 10 of 15

Re: CPU Temps 60-80 & Spiking to 96 After Undervolt

2020-02-15, 16:00 PM

I tried stress test CPU and GPU.

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