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09-16-2019

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IdeaPad s540 Overheating issue

2019-09-16, 20:32 PM

Hi,

I've been facing some heating problems with my IdeaPad s540. I bought it about a week ago. I was running some CFD simulations recently and I noticed the underside of the laptop was getting quite hot. On checking with core temp, all 4 cores were showing max temperatures over 80 deg celsius even with  just 50-60 percent CPU load.

 

I ran a stress test with Cinebench and 3/4 cores hit 100 deg celsius for a couple of seconds and the fourth one had a max of 95. I ran it a few more times but now the maximum core temps were less than 90 for the most part (with no noticable drop in performance).

 

Is this normal behaviour? I read the max safe operating temperature for the intel chip was 100 deg celsius. Does that mean the hardware will eventually get damaged?

 

On a side note, I remember a few (small)bread crumbs slipping through the gaps in the keyboard. I tried to use a blower to get them out but they disappeared. Could they be somehow blocking the cooling system or something? Does anyone know if the keyboard is isolated from the rest of the laptop?

 

Thanks 

 
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11560 Posts

11-30-2015

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Re: IdeaPad s540 Overheating issue

2019-09-18, 18:40 PM

Hi Swaythe,

 

Welcome to the Community Forums.

 

It would be better to call in technical support to check on the fans and vents or if there is any need for re application of thermal paste.

 

If the threshold of heat is reached, the machine would normally shut down to prevent damage to the machine. Using a canned air to cleanup the keyboards and vents can help but if you feel that the heat is unusually warm or too hot to touch, then best to have it checked by the hardware warranty team specially if the warranty is active.

 

I hope this helps answer your query.

Update us how it goes best for you.

 

Regards



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Re: IdeaPad s540 Overheating issue

2019-09-22, 10:50 AM

Thanks for the reply.

 

I don't think the vents and fans have been blocked since it hasn't been that long since i bought it. Like I said in my post, a few small bread crumbs did slip through the keyboard but I don't think its enough to block the vents even if they got there (do you know if the space under the keyboard is seperate from the rest of the laptop?)

 

I would get the laptop shown at tech support but I live in India and from what I've seen online, they are notoriously slow to get things done and I need my laptop for atleast a couple of weeks till my exams end. So, I don't want to do it unless I absolutely have to.

 

I also tried installing a different temperature monitoring software called "HWmonitor" and it was showing me some wierd readings. The temp would shoot up to 80-90 degrees within a few seconds of running the stress test and they would also come back down within seconds of closing it. Do chips really heat up and cool that quickly? Now I'm starting to question how accurate these temperature monitoring software are. Maybe it's just wishful thinking but what if they're showing exagerrated/wrong values? 

 

Do you have any temperature monitoring software that you recommend?

 

Thanks for taking the time to read through my post and sorry for the late reply.

 

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Re: IdeaPad s540 Overheating issue

2019-09-23, 13:21 PM

Hi Swaythe,

 

Greetings.

 

No specific software but you can use multiple heat checking tools for comparison. Try to run it with the LCD in different position and check if there are anything internally that blocks the vent on its angle.

 

I would always suggest to report such instance to tech support team before any internal task to avoid voiding warranty just in case. Others proceed with repasting thermal compounds and checking the vents opening the laptop. 

 

Regards



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7 Posts

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Re: IdeaPad s540 Overheating issue

2019-10-08, 10:26 AM

Hi, 

Just wanted to post an update about the issue.

I recently installed a BIOS update and an optional update that had something to do with cooling. Since then the issue seems to have been largely resolved. I don't know if the updates were there when i posted this but I did have the automatically install updates option checked.

Cheers

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Re:IdeaPad s540 Overheating issue

2020-04-07, 10:26 AM

Which update is this related to cooling? I'm on Linux, and I've upgraded the BIOS recently, but nothing changed. On high CPU load, it stays constantly around 94°C, and sometimes at 100°C. I'm freaking out.

 

I bought this laptop in Japan and went back to Brazil. I just can't send it to repair.

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9 Posts

05-17-2020

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Re:IdeaPad s540 Overheating issue

2020-05-18, 12:27 PM
The Laptop mostly runs fine and normally when not connected to a power supply. When connected to the charger, it has these bizarre overheating issue. This is mostly with the IdeaPad S540 GTX 15IWL Model. I think lenovo need to realize this, configure the fan and temperature settings properly and put out an update. Lenovo can easily fix this issue if they release an update which undervolts the GPU and CPU by default properly. How can we pay 1K for a laptop with issues this extreme out of the box?
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1 Posts

05-21-2020

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Re:IdeaPad s540 Overheating issue

2020-05-21, 3:00 AM

My son gave this to me as my 50th birthday present. After a month later, heating fan started to operate and kept running. 

Like other people mentioned, Lenovo already recognized this issue. Sadly, the attachment is my solution. 

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9 Posts

05-17-2020

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Re:IdeaPad s540 Overheating issue

2020-05-21, 20:11 PM

But here is the issue, If its acknowledged, severe and its totally solvable through undervolting or something similar like an Ultra-low power mode, how is this not false advertising? They said specifically on the advert Quote "Stay cool and quiet Quiet, dual-action fans and an enhanced cooling design mean the IdeaPad S540 won’t overheat while you’re working. We even engineered it so the fans are quiet."They have to do something. The fans settings don't even work properly, They can be loud when the laptop is cold.  Its nuts and this is false advertising easily.

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1 Posts

06-23-2020

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Re:IdeaPad s540 Overheating issue

2020-06-23, 18:22 PM

I had overheating issues, warranty claim was slow, I upgraded to premium care, even with premium care my issue didn't get resolved. since this is a known over heating issue, 

how do I get it resolved ?

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