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haveufeltme
Paper Tape
Posts: 5
Registered: ‎09-05-2016
Location: US
Views: 1,143
Message 1 of 10

Lenovo y40-70 Overheating Cause??

I have a lenovo y40-70 laptop

 

Windows Version Windows 10 (64 bit)

 CPU Type Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz 

System Memory 8 GB    Graphics Chipset AMD Radeon R9 M275X

 

Its been a year since i brought this laptop. My battery was damaged and had it replaced after that my laptop temperatures started rising more than it used to before that . last time i played witcher 3 in 900p at ultra , Max temp would be 78C. But now even playing normal games like Inside , Fifa 15 , rise of the tom raider .. The Temp max out at 84-90C.. I replaced the thermal paste and cleaned the heat sink but it does not seem to work. I tried using a cooling pad but it throttles while gaming and the temps only decreased by 5-6 celcius.... Any advice would be greatly appreciated.. How can i game in this notebook without having to throttle??? Help me... 

 

 

Sr Support Specialist
Posts: 9,630
Registered: ‎11-30-2015
Location: PH
Views: 1,124
Message 2 of 10

Re: Lenovo y40-70 Overheating Cause??

Hi haveufeltme , 

 
Welcome to the Community Forums.
 
Non OEM branded battery can contribute to heat accumulation , making sure that it is a Lenovo authorize battery ensure compatibility.
To test if battery is the point of issue , running without battery can isolate it.
 
Aside from the battery any other changes made like current Windows 10 version or software added?
 
Ensure that ventilation are ok and BIOS version matches current with those offered from the support site.
 
Update us how things go. 
 
 
Regards



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haveufeltme
Paper Tape
Posts: 5
Registered: ‎09-05-2016
Location: US
Views: 1,087
Message 3 of 10

Re: Lenovo y40-70 Overheating Cause??

Thanks for advice , Appreciate it . The battery i have is OEM battery . The ventilation is okay..the BIOS version is Okay. However if i reduce my GPU Clock speed at 600 Mhz and memory speed at 900Mhz the temp idles around 80-84 degrees but its no good.. because games require full speed to oprate smoothly. I cant understand whats happening .  ANy more advice would be great.... TOO HOT  

Sr Support Specialist
Posts: 9,630
Registered: ‎11-30-2015
Location: PH
Views: 1,076
Message 4 of 10

Re: Lenovo y40-70 Overheating Cause??

Hi haveufeltme ,

 

Greetings. 

 

Similar to your query here on this discussion and this that may help ;

 

1) Go to Control Panel > Power Options

2) Click on Change Plan settings for the current active plan.

3) Click on Change Advanced Power settings.

4) Under 'Processor Power management > Maximum Processor State', set the 'Plugged In' value to 99%

 

Regards



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haveufeltme
Paper Tape
Posts: 5
Registered: ‎09-05-2016
Location: US
Views: 1,054
Message 5 of 10

Re: Lenovo y40-70 Overheating Cause??

thanks .. for the advice again But i have been using throttlestop as well , the process is for turbo management Smiley Happy I will try it and reply again as soon as possible if its not well enough thanks KUDOS ...
Guru
Posts: 283
Registered: ‎08-27-2016
Location: GR
Views: 1,044
Message 6 of 10

Re: Lenovo y40-70 Overheating Cause??

Replace thermal paste with one of really good quality, clean dust from vents and fans, and be sure NOT to apply too much paste. Also do a malware scan, you may be infected with a bitcoin miner or other rootkit, causing high CPU use and heat. If all fails, it could be the new battery, or a faulty heatsink.

PS. If the laptop can power on without the battery installed, but just with the ac adapter, do it and check the temps, so we know if the battery is the problem or not

I am a volunteer in this forum and also a lenovo user. If i helped you, click on the kudos button!

haveufeltme
Paper Tape
Posts: 5
Registered: ‎09-05-2016
Location: US
Views: 1,033
Message 7 of 10

Re: Lenovo y40-70 Overheating Cause??

Its been 1 month since i applied the thermal paste and the batteries are ordered from the Lenovo Itself but regarding your concern for the heat development , I also think it may be due to the heat sink.. But the technician said the heat sink is only damaged when the metal in the heat sink deforms or cracks but since there are no cracks on the heat sink . there is a good chance that it is not damaged .. However The gpu temps reaches 95 degress . Today i tested the fifa 17 demo , The gpu handled the ultra 1080p settings well but due to heat , i couldnt play it smoothly.. Thanks for your reply .. How can i know if my heat sink is damaged? please help

Guru
Posts: 283
Registered: ‎08-27-2016
Location: GR
Views: 1,029
Message 8 of 10

Re: Lenovo y40-70 Overheating Cause??

You will have to rule out all possible causes like the ones i listed above.

If the above dont work then there is one way to test the heatsink (other than replacing it) but it is dangerous, i wouldnt advise it, and if you do it, its on your own risk.

Remove the bottom cover, exposing the heatsink and the motherboard. Start a game until your laptop gets hot and then quickly turn off the laptop, disconnect power and try to touch the heatsink pipe near the exhaust point. If it is working it must be HOT. If it lukewarm, starting for example from the middle of the pipe towards the end, then your heatsink is faulty.

Has happened before to an old iMac i was repairing, with no visible marks or cracking damage

I am a volunteer in this forum and also a lenovo user. If i helped you, click on the kudos button!

haveufeltme
Paper Tape
Posts: 5
Registered: ‎09-05-2016
Location: US
Views: 1,006
Message 9 of 10

Re: Lenovo y40-70 Overheating Cause??

Thank you . I will look forward to your advice and check it as soon as possible.. However can you recommend me some good thermal paste and information on its costs?

Sr Support Specialist
Posts: 9,630
Registered: ‎11-30-2015
Location: PH
Views: 967
Message 10 of 10

Re: Lenovo y40-70 Overheating Cause??

Hi haveufeltme , 

 

Just to share most technician's trusted thermal paste would be Noctua NT-H1 Thermal Compound and  Arctic Silver® 5 . Pricing and availability may be different on your location but you can easily check it among resellers like amazon and bestbuy . Reviews and discussions can help you decide further.

 

Regards



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