Are high temperatures slowly damaging my Macbook pro 2018?

[Collywobbles]

When I run intensive tasks on my MacBook it can get very hot ( up to 95 degrees Celsius) and sometimes it can be over a very long time eg two-three hours. I am already getting ddouble key repeating issues on my d key and I am wondering if this could be related to heat and what other issues could be caused by the extreme heat?

Are you running Mojave?

I've just had to switch back to High Sierra. Running temperatures dropped around 15˚ to 20˚. I have the Radeon 560 and the graphics memory pressure dropped from 95% to an average of 25 to 30% (it does flicker up and down a bit during use); this whilst connected to an Acer XR382CQK monitor. WIFI drop outs have stopped too. It is my considered opinion that Mojave is not fit for purpose.

I've been using "iStat Menus" to monitor the machines performance.

It is quite hard to switch back; Apple have attempted to put numerous blockers in your path including such "security" measures as "unverified sources" and 'external startup disks not supported". They've made it nigh on impossible to find High Sierra on the Mac App Store. They really don't want you to switch back.

 

[JamesTheMac]

I wouldn’t worry about the costs if you are based in the U.K. or mainland Europe. We have consumer laws that offer protection, meaning the laptop should function as described for a ‘reasonable’ amount of time. Apple have already acknowledged with the earlier versions of the keyboard that they will replace it FOC for a period of 4 years. So this sets a precedent for the 2018 version also.

It is because of this consumer law that it’s probably the case you can’t buy normal ‘Apple Care’ in Europe. Because they are selling something that we do not need. Instead they offer ‘Apple Care+’ which can be argued goes beyond the normal consumer protection we already have, by offering accidental damage.

So if accidental damage is not a concern to you, I wouldn’t worry about having to pay the extra ~£350 or whatever it is they charge, just to have protection beyond 12 months for the keyboard.

 

[Queen6]

The CPU and GPU certainly are, but the heat could be impacting other components that may be sensitive to heat. I'm not saying that is the case, but rather it's a concern of my.

For example, the 2018 Razer's SSD would get really hot as the fans were not moving the heat and that component was getting very hot. Eventually Razer put a thermal pad on the SSD to help deal with the heat. This has nothing to do with apple per say but my point is if parts of the MBP are getting overly hot, it could have an overall negative impact

CPU & GPU cores running to max is not really the concern as it's still well below any physical barrier, barring the obvious loss in performance due to throttling. The bigger concern is outlying components. Typically consumer grade electronics are only rated to 70C. The most damaging is thermal shock where rapid cycles of cooling and heating occur, greater the frequency, greater the Delta more chance of failure over time.

From a professional perspective components are graded with the highest being Mil Spec capable of 150C. Consumer electronics are definitely better off below the 85C threshold, majority below 70C, with 85C generally being classed as Industrial. In the past I've conducted numerous environmental studies (temperature & shock) on complex electronic packages way exceeding the capabilities of a conventional computer with high temp Mil Spec components.

We commonly observed systems rolling over at 90C & 120C as that tends to be related to the production process of the components. This is platforms well past the $100k mark, stepping up to 150C and with some extreme systems as high as 175C, although the latter being more simplistic in operation due to the constraints with more complex components.

All who have designed/worked with complex electronic assemblies will state the same that high temperature and rapid change of temperature is not desirable...

Q-6

 

[LogicalApex]

All who have designed/worked with complex electronic assemblies will state the same that high temperature and rapid change of temperature is not desirable...

That would be temperatures exceeding what the components were designed for, no? We don't have the exact specs for all the components on the MBP 2018 logic board so it is hard for us to know if the devices are running warm enough to put those components under serious stress.

It reminds me of the complaints people have about modern cars that shutoff the engine when idle and starts it up quickly when no longer idle (such as a stop light or in traffic jams). The argument was that constantly starting the car will quickly kill the start motor since it will be starting a car 5x or more over the same timespan as a car without this. Except the new motors were re-engineered and more than capable of handling the extra starts.

 

[Nerdyaf]

besides the keyboard, your battery will die a lot quickly too