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pookitoo

macrumors 6502
Original poster
Apr 16, 2015
265
136
Paris
Hello, i received my 2018 MacBook Pro, 15 inch the last Monday, 2.6 proc, (waiting 3 days for indexing), and feel the MacBook Pro hottest than my previous one (2017) and I can hear the fan more often than with my previous MacBook Pro .

I've the exact same workflow, I applied the last update from apple.

Anyone feel the same ?
 
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You have applied the "throttling" patch right?

I just reinstalled macOS on my i9 and indexing (with a fresh install) took an hour or so.

Edit: And it doesn't run loud, or super hot (outside of benchmarks).
 
I am having the same issues. Its made things a bit better with regards to what the intel power gadget is reporting but its still quite erratic on the frequency chart and I am regularly dropping down well below the base clock speed. Is this normal? Do these machines underclock themselves when the processing power isn't needed?

I am also finding that the fans are going a lot of the time when I am not doing anything remotely close to pushing the machine. Watching a youtube video will spin up the fans heavily and they are pretty much always audible. Not sure if I have a 15" with a dud cooling system or this is normal for these new, hotter laptops.
 
I have not heard my fans yet except one time for a couple of minutes. While installing PhotoShop my fans we just barely noticeable.

Do you have the intel power gadget app installed? If so could you please let us know what your average temperatures are in there or post a screen shot of the usage under minimal load. Its very hot in the UK at the moment so I doubt thats helping but the amount my fans are spinning up seems excessive.
 
Do you have the intel power gadget app installed? If so could you please let us know what your average temperatures are in there or post a screen shot of the usage under minimal load. Its very hot in the UK at the moment so I doubt thats helping but the amount my fans are spinning up seems excessive.

I am sorry but I can not help you much here as I use the laptop almost solely in Windows 10 Pro via BootCamp. Using Office which is not that demanding, my MBPro 15is barely warm on the bottom after hours of use.
 
I'm not doing anything crazy right now, just working on adobe XD with dropbox working in background, indexing is finish, no external screen plug in, and the fan continuously spinning, not very loud but spinning. At the top of the Touch Bar it is very hot ;( I'm waiting to sold my 2017 MacBook Pro ! maybe I will return the 2018 ! Or maybe I will try to do a clean install, and don't install dropbox or anything
 
Hello, i received my 2018 MacBook Pro, 15 inch the last Monday, 2.6 proc, (waiting 3 days for indexing), and feel the MacBook Pro hottest than my previous one (2017) and I can hear the fan more often than with my previous MacBook Pro .

Of course its hotter. You have more cores and more aggressive clocks, what would you expect? In the tests I've done, the increased performance is more or less linear to increased power consumption.

You have applied the "throttling" patch right?

The patch won't make the laptop run cooler, if anything, it will probably make the laptop run hotter, since it allows more consistent power delivery that keeps the CPU permanently on its thermal limit.
 
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Of course its hotter. You have more cores and more aggressive clocks, what would you expect? In the tests I've done, the increased performance is more or less linear to increased power consumption.



The patch won't make the laptop run cooler, if anything, it will probably make the laptop run hotter, since it allows more consistent power delivery that keeps the CPU permanently on its thermal limit.

It sounds like we need an app that can shut off cores when not used.

Is there some app for that? Volta can't do that.

Would be cool being able to say to only use 2 cores and being able to switch back to 6 when doing more heavy tasks.
 
Anyone feel the same ?
My MBP runs hot, I use the Volta app to limit the wattage, and I found a balance of how much performance vs. heat.


You have applied the "throttling" patch right?
The patch does not make the CPU run cooler, just faster.

I am sorry but I can not help you much here as I use the laptop almost solely in Windows 10 Pro via BootCamp
Intel's power gadget is available on windows, additionally they offer Intel® Extreme Tuning Utility (Intel® XTU) where you can refine the cpu settings at a much higher level then the Volta App. There's also an app called Thottlestop that many people swear by but I don't have any experience.
 
My MBP runs hot, I use the Volta app to limit the wattage, and I found a balance of how much performance vs. heat.



The patch does not make the CPU run cooler, just faster.


Intel's power gadget is available on windows, additionally they offer Intel® Extreme Tuning Utility (Intel® XTU) where you can refine the cpu settings at a much higher level then the Volta App. There's also an app called Thottlestop that many people swear by but I don't have any experience.

Thanks very much! I will download this PM.

Is your 2018 getting "hot"?
 
I'm currently using my 13" i7, with iStat menus reporting about 8% CPU usage and temps across the board at a maximum of 56º (35º for the Palm Rest), and the areas on either side of the trackpad are definitely a lot warmer than they were on my 2016 MBP.
 
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definitely a lot warmer than they were on my 2016 MBP.
But that makes a lot of sense, because apple is using the same case and presumably the same cooling design, but the 2018 MBP has two additional cores (a total of 4 for the 13" and 6 for the 15"). More cores equal more heat.
 
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But that makes a lot of sense, because apple is using the same case and presumably the same cooling design, but the 2018 MBP has two additional cores (a total of 4 for the 13" and 6 for the 15"). More cores equal more heat.

But this is with my CPU running at about 8%, so that really shouldn't be a factor.

Anyway, I've discovered that the palm rests only get that warm when running off battery, which makes sense as that's where the batteries are located. Now that it's plugged in, they're totally cool. Should the batteries get that hot?
 
I am sorry but I can not help you much here as I use the laptop almost solely in Windows 10 Pro via BootCamp. Using Office which is not that demanding, my MBPro 15is barely warm on the bottom after hours of use.

No worries, I have found that its mainly the GPU being asked to push 2 4K monitors at non-native resolution as well as the internal display that is causing the heat issues. I am sitting here with it on my lap and its sitting at about 45 degrees C instead of 65 when the monitors are plugged in.
 
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I briefly had a new 2018 13 inch model which i needed to return due to other issues (https://forums.macrumors.com/thread...litch-freeze-can-someone-please-test.2129323/).

Indexing, iCloud downloads etc. where completely done, there was no background activity. Surfing with Safari and using the laptop on my lap for several hours, it did also get very hot on the bottom. Not warm, not boiling, but just uncomfortably hot/very warm.

I don't know if other people just exclusively use the mbp on a desk, it probably has less issues then. But the one I had (maybe it was defective either way, even after the anti throttleing update....) did heat up basically doing nothing and used on the lap. I tried not to cover the air intakes/exhausts (which is hard when on the lap) but that didn't really change the behavior.

My theory is that a quad core CPU with multi threading is (similarly to the 6 core) is just to much for the 13 inch model. This shouldn't come as a surprise, the current design was constructed with the thermals of 2 cores (for the 13 inch) and 4 cores (for the 15 inch) in mind. They didn't really improve the cooling system and more powerfull CPUs(and the faulty VRMs) just produce a lot of heat :(
 
I just got new 2018 13 inch macbook pro yesterday. My macbook is also running uncomfortably hot even after installing the update. It is just sitting on a desk and doing a basic web browsing. Nothing is running other than Chrome. It also froze and restarted two times already. I am planning on returning it.
 
My 15” MBP is also running a little on the hot side as well as I had posted in another thread. If the MacBook is plugged in and being charged then it runs even much hotter. I was thinking that they bigger laptop would run cooler and more efficiently for my lighter work but this has not been the care for me
 
A bit hot my mbp late 2018 i9 5ghz? 64gb ram Radeon vega 64gpu the battery has expanded melted the
logic board all replaced then late this Oct overheated so much had critical screen warning shutting down as fans went to overdrive. Closing it to move it from way and others it burnt my had and gave me a blister.
Over one and a half months later the tech team haven't finished testing it so the legal team won't give me a replacement my clear right here in the UK under the law, not that it should come to that also wrote to Tim Cook with outline of my MacBook saga.
being blind and depending on this very expensive machine for work which since last year I cannot do, dealing with apple Europe headquarters cork Ireland the support guy agrees he would be worried about using this model under the circumstances It is not safe!!!
one friends had 3 gpu,s melt besides $6437.00 is more than anyone would be happy to be given a lemon really after decades of supporting Apple and the good and bad I expect more from them.
 
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I believe the Intel CPUs are using trottling when they are not fully used, to save power. If there is no need for cpu calculation power, there is no need for them to run on full clock...i think that this was already explained on intel forums.
 
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I believe the Intel CPUs are using trottling when they are not fully used, to save power. If there is no need for cpu calculation power, there is no need for them to run on full clock...i think that this was already explained on intel forums.
I know of one with three gpu,s have melted apple have mentioned several times they would give me a replacement with new reviused 16" model especially a bigger fan and redsigned heat sink after that had over a month and a half they say the tech team needs my password to access the machine I allready wrote to them giving them 7 days to meet my rights 2 months ago and written to Tim Cook as the machine is not fit for purpose or satisfactory quality etc. Since all this has been happening I'm now speaking to the senior exec liaison Steffen Morr but it just goes on. I have read many articles since about the design flaw and the probs with Intel gpu,s being blind this is very laborious especially without my main machine I rely on accessible software keyboards etc. I finally told them this in my last letter it's frustrating since many I've spoken to clearly are aware of the problem. It's very frustrating they promote these machines for creatives as professional machines which I am a creative director who hasn't been able to work now for months because of this machine constantly failing and I,m an Apple beta tester ironic. Thank you for your reply, very frustrated,
Mandriod.
 
I have not heard my fans yet except one time for a couple of minutes. While installing PhotoShop my fans we just barely noticeable.
Just making a keynote presentation to an HD projector caused my 15" i9 to over heat the fans to so loud like a vacuumed cleaner and then a critical fault warning while it kept shutting down till I shut it down moved away from everyone. in autumn 2019 the battery and the logic board melted. worst $6500 I ever spent apples have had it since December after it burnt my hand! Not my coolest battle scars.
 
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