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10 Posts

07-12-2014

London

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What is the Safe Temperature Range for X Series CPU?

2014-07-12, 17:56 PM

Hi - sorry if this question that has an obvious answer. Intel provide a Tcase value:

 

"The normal processor temperature will depend on the chassis type, the hardware involved and the location of the computer, and it usually is lower than the Tcase."

 

Is there a place to find the "normal processor temperature" that Lenovo recommends for X Series laptops with various Intel CPUs operating at standard temperature (20 degrees Celcius)? 

 

Here is an answer for the W Series.  Is it the same as for the X Series?  Thanks.

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12078 Posts

01-02-2010

United States of America

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Re: What is the Safe Temperature Range for X Series CPU?

2014-07-13, 16:14 PM

Cooler is better.  I like to try to keep idle temperatures in the 40's.  A faster cpu will generally run hoter than a slower one.  An i7 will generally run hotter than am i5.  Ambient temperatures will affect the chip temperature.  Also memory gives off heat (inside the case) so a machine with more memory will run a little hotter.  A 15" machine will run a little cooler than a 14" mahine, which will run cooler than a 12" machine. Quad-core CPUs are hotter than dual-core.   Ultra-low voltage chips run cooler.  The machine will shut off at about 100C, but you never want temperatures like that.  If i am running some sort of CPU torture test, I shut it down if the CPU hits 90C.  I generally never get above the mid 70's under load.  Right now I am using a W530 with a quad-core CPU and 32GB of memory in a warm room.  My CPU temperature are running in the mid 50's in a docking station.  Since I mentioned the dock, I will add this info.  With 15" machines, the dock blocks some of the CPU air vents, so it may run hotter. In a non-scientific test, I seemed to run about 2 degrees hotter in a dock. 


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
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12078 Posts

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  • Message 2 of 8

Re: What is the Safe Temperature Range for X Series CPU?

2014-07-13, 16:14 PM

Cooler is better.  I like to try to keep idle temperatures in the 40's.  A faster cpu will generally run hoter than a slower one.  An i7 will generally run hotter than am i5.  Ambient temperatures will affect the chip temperature.  Also memory gives off heat (inside the case) so a machine with more memory will run a little hotter.  A 15" machine will run a little cooler than a 14" mahine, which will run cooler than a 12" machine. Quad-core CPUs are hotter than dual-core.   Ultra-low voltage chips run cooler.  The machine will shut off at about 100C, but you never want temperatures like that.  If i am running some sort of CPU torture test, I shut it down if the CPU hits 90C.  I generally never get above the mid 70's under load.  Right now I am using a W530 with a quad-core CPU and 32GB of memory in a warm room.  My CPU temperature are running in the mid 50's in a docking station.  Since I mentioned the dock, I will add this info.  With 15" machines, the dock blocks some of the CPU air vents, so it may run hotter. In a non-scientific test, I seemed to run about 2 degrees hotter in a dock. 


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.

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10 Posts

07-12-2014

London

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Re: What is the Safe Temperature Range for X Series CPU?

2014-07-14, 17:05 PM

Thanks.  Cooler is better.  Always worth stating :smileyhappy:

 

Conclusion:

 

40 degress Celcius = idle

 

Mid 70s degress Celcius = under load

 

90 degress Celcius = time for manual shut down

 

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85 Posts

06-16-2013

Poland

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Re: What is the Safe Temperature Range for X Series CPU?

2014-07-14, 17:16 PM

As far as I know all mobile CPU's have thermal throtling, so you don't really need to worry about melting them. They will lower the clock by themselves, keeping the temperature in acceptable range.

High temps might affect other components, like the battery. But the CPU should manage.

 

On the other hand if you manage to melt the computer under standard configuration (without any forced overclocking) it falls under warranty repair. 

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Re: What is the Safe Temperature Range for X Series CPU?

2014-07-14, 17:33 PM

Must admit to having gone to an iPad for the more video and media (entertainment / fun) use aspects that made the X Series hot. Ended up traveling with two devices.

 

Once an X Series got to shutting itself off due to heat.  I either cleaned it or took it as a signal to upgrade.  Not worth losing work over.

 

Will see how the new Series goes with thermal throttling.  Thanks.

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21115 Posts

12-20-2008

Australia, Melbourne

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Re: What is the Safe Temperature Range for X Series CPU?

2014-07-14, 23:48 PM
which machine model do you have? X1 Carbon?
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
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28 Posts

07-29-2014

USA

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Re: What is the Safe Temperature Range for X Series CPU?

2014-08-12, 20:48 PM

I've got a ThinkPad X240.  Core i7, 8GB RAM, 256GB SSD.  I did some torture testing when I first got it last week.  It looks like the processor idles in the 38-43 C range, and running Prime 95 and the Lenovo hardware diagnostics tests got it to a maximum of 83 C (though only briefly; it was usually in the high-70s even under heavy load).

 

Do these temperature stands sound pretty normal?  

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21115 Posts

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Re: What is the Safe Temperature Range for X Series CPU?

2014-08-13, 1:39 AM
@phositadc, that sounds really good.
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
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