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I have a maxed out 2019 16", i.e. 5500M. Over time the heat issue has gotten worse and worse. It's got to the point it closes the MBP off, or at least stops video play.

But this is all without an external monitor.

Typical real world cases where the MBP will overheat are multiple youtube tabs open on FF, or a tab open (on pause) plus VLC running, or a YT video playing whilst also downloading something.

What is going on? Is it bad software? Bad hardware? I've been using MBPs (and a few Airs) since 2007 and never had this issue with any of them. Or could it be something else, like laying the laptop on a bed? Not that I've found a desk any better.

I've ordered a 5600M model (at great cost), and I've found the instructions for applying more thermal paste to the 5500M model, and I'm debating between these two options.

Thoughts? This is honestly the worst (and yet most expensive) MB I've bought from Apple.

Mine was similar.

I took it in to Apple, and it had all sorts of issues. Do the same if still in warrenty.

Logic board, and something else I cant remember. I basically stopped using it and had it on the shelf for months during lockdown.

I traded in for a 5600m and it is a chalk and cheese experience. The 5600m is awesome, the 5500m maxed machine I had [like yours] was a total P.O.S.
 
Quick test just now:

Used the computer in bed (positioned like having it on my lap, but not completely flush against my legs; also intentionally partially blocked airflow on the sides).
Forced the discreet GPU.
Played 4K material in Plex (in Safari) for 7-8 minutes.

From sudo powermetrics --samplers smc -i1 -n1:
**** SMC sensors ****
CPU Thermal level: 51
GPU Thermal level: 1
IO Thermal level: 1
Fan: 1937.79 rpm
CPU die temperature: 61.64 C
GPU die temperature: 57.00 C

For many reasons far from an ideal test (including that Plex has hardware acceleration off), more like my regular usage with a few quick tweaks; but the MBP16 seem to handle this very well. And yesterday I had it laying on top of the bed (nothing fluffy blocking the airflow) for about an hour playing a movie in Plex (in Safari; integrated graphics only) without it getting hot or the fans making much noice.
 
Okay, well these last two posts (thanks guys) - one being a bad machine, one having no issues even on bed - have persuaded me to contact Apple, see what they can do. Maybe they'll have me send the 5500M back for keeps, but refund me on the 5600M which arrived today. I've had pretty good luck in the past with Apple re returns.
 
The fact is I've had to re-force only using the 5500M as the lagginess/choppiness was so noticeable when on the integrated GPU.

And whilst no one responded to my asking whether the following was possible or just coincidence, but when using the integrated GPU I found I suddenly had to buffer streaming videos (i.e. videos would stop to allow the next section to buffer) on multiple sites. I have slow internet where I am, but I've never had this happen before. But I don't know if it's possible the GPU would handle buffering or not.
 
Okay, well these last two posts (thanks guys) - one being a bad machine, one having no issues even on bed - have persuaded me to contact Apple, see what they can do. Maybe they'll have me send the 5500M back for keeps, but refund me on the 5600M which arrived today. I've had pretty good luck in the past with Apple re returns.
If you can open up the 5600m machine and check it out. You may want to keep that one.
 
The fact is I've had to re-force only using the 5500M as the lagginess/choppiness was so noticeable when on the integrated GPU.

And whilst no one responded to my asking whether the following was possible or just coincidence, but when using the integrated GPU I found I suddenly had to buffer streaming videos (i.e. videos would stop to allow the next section to buffer) on multiple sites. I have slow internet where I am, but I've never had this happen before. But I don't know if it's possible the GPU would handle buffering or not.
I've thought about it, and I can sort of force a couple of guesses about how something like that could be possible; but it would 100% be an after the facts-type of a thing, and not based on anything that I actually know about what's going on.

So it really would just be a couple of hypothesis that I would play around with; and then, if possible, go to like GitHub or something and see if the actually code matches the behaviour.

I'd also have a look at if forcing the discreet GPU might offload the RAM a bit, and check if the software used handles the RAM right; check what processes are running at what load etc.

The shortcut would really be to just start over like I said before, reset everything; and if there's still a problem after making the machine like new software-wise, then it's bad hardware.
 
Going to attempt the termal paste mod now.

If that doesn't fix the issue, I'll remove the paste and speak to Apple about getting a refund on this machine, keeping the 5600M.

If it does fix the issue, I'll return the 5600M.
 
Well in the end I didn't do it. I got heavily distracted and realised i wont be able to return the 5500M if i've modified its insides, and have run out of time to return the 5600M as well, which will soon become my primary machine (not that I will use any others, including the 5500M).

Thus, my only real option is to send the 2019 model 5500M to Apple, hope they can repair it (assuming there is something to repair), and either get a replacement or the same one back and fixed - then sell or pass it on.

On that end, I have some questions. Some are of a highly speculative nature, so thoughts are appreciated with no expectation of relevant/insider knowledge or accuracy.

1) Should the 16" with Apple silicon come this year, and I wait till the refresh, and after it has happened and I return the 5500M, and Apple do agree to replace it for nearest like - what is that nearest like going to be? As this machine is maxed out, and if it is an Apple silicon machine it gets replaced with (i.e. the refresh is solely Apple ARM), it would have to be a pretty good machine replacing it, possibly maxed out too, so I'd be more than happy with that. If there is a non Apple ARM version during the refresh however, offered as part of the line up, I assume then that that would be nearest like - thus, what are the odds by then (end of this year) that it comes with a 5500M or 5600M? I should add that I have AppleCare.

2) I find that using any browser I find tolerable (i.e. Firefox with extensions/add-ons, or Safari with none) completely wrecks this machine if there's video or even a gif. It is better when integrated GPU is enabled, but not forever, and inevitably gets too much. Is this something wrong with the browsers or the machine?

3) I also think, having watched a few teardowns and conducting a couple other experiments, that the side fans do basically nothing for heat, and that the fan that does all the work is the one beneath the screen. What would be the least bulky and easiest to transport around accessory that I could use to prop the laptop up entirely, especially on bed? I was using a rectangular block of wood, but no grip. I then (not seriously, promise...) considered a long rubber dildo (is that actually the only thing of that shape [rectangular, not phallic] that has grip?). I now think something much smaller, literally coat or even jeans pocket size, would be best.

4) Is there alternatively perhaps something I could attach to each corner to raise the machine a half or even full cm?

5) I came to this machine from a 2017 (I think) 13" MBP without touchbar. And I have to say, despite how it looks and despite the size of the screen (reminds me of my favourite mac ever, 2007 17" MBP), I really hate it. The heat. The fans. The stupid touchbar (which I have disabled thanks to a change allowing it in big sur). The lack of SD card drive. The stupidly sharp edges where your wrists rest. The terrible battery life (I get only 3 hours max usually - is this normal?!). The keyboard is good, but I never had a machine with the problematic (butterfly?) one, so it seems the same to me. I've never used the fingerprint thing, and genuinely forgot I had it till I turned on the 5600M. Even the camera, which should be so simple to upgrade, is appalling - I am sure this machine is faulty, as the camera quality is so much lower than any previous HD mb camera i've had. I admit the speakers are good, but not on a bed, and not always full stop. The USB-C is fine I guess, obviously inconvenient with old tech (or cables) but less so than the lack of SD slot. So my question here is, why does no one complain about this machine? Or if they do, even in large numbers, why doesn't Apple do something?

I just hate how Apple gets away with this stuff now. The fact that thumbnails are often blurry (why!?) and have been across multiple OS versions; that syncing a device without cloud is basically futile and has been for 3-5 years, crippling many's use or even enjoyment of iphones ipads etc; that the method for rearranging icons on an iphone screen is utterly insane (can you imagine if to move a file on MacOS there was the considerable risk it would shoot off into a random space or desktop or folder, or worse, trying to move the file would inexplicably cause it to not only shoot to the desktop, but cause all other files to as well, even meaning the emptying and erasing of organisational folders); that you can buy an album on itunes off the front page when it's released and then realise later that you bought the clean version (why can't they show it's the clean version if they insist on having two versions); that the design of iOS and MacOS (and modern tech design in general to be fair, e.g. what happened to about:config in firefox?) gets more and more like a fisher price toy, everything larger and larger, and less and less information available at a glance, or options to change things (why can't i permanently disable live photos on iphone, or permanently stop the slow shutter feature from being auto), or even the menubar just gets more and more cluttered and dumbed down; having to enable 2FA to use the homepod; how fragile or poor the iwatches are (I had a 4th gen replaced twice, once because of a shower, the other because of its bad battery); how you can't see when a person in group imessage is typing; how mail threads email conversations that have doubled up and split or when previous emails have been deleted etc together even with that option turned off; how poor the notes app is for searching and filing, things out of chronological order in search or things taking forever to be re-filed with no quick way to do it, or the disconnect in features between the macos version and the ios version, or the lack of export to a folder or zip for offline storage; how terrible the controls of quicktime are, and how they could take their cue from vlc but don't; or their air max headphones with its terrible half naked case; or the fact that you can't combine two multi-stacks on ios into one; how holding the iphone 11 pro max comfortably with a right hand little finger supporting its weight at its base means you block the mic; or so on and so on. Most of these complaints are years old, and I have written to Apple, I have even emailed Tim Cook hoping someone reads it and agrees, and yet nothing gets better. The same faults (like that bloody thumbnail one) get carried over to the new OS, or instead of upgrading the OS Apple instead upgrades their firmware and tries to sell you a 512GB iphone for $$$ whilst knowing its offline sync (and the entire point of having that capacity drive) is crippled and doesn't work (photos not synced, photos synced twice, music missing, artwork missing). And somehow I nearly forgot this till now - the most egregious issue, in my opinion. How iTunes/Music can actually damage your files (how I do not know), meaning the last 14 seconds of the song will repeat itself at the end, or sometimes 28, or even 42 seconds; how it won't play MP3s, especially those encoded using Lame, sometimes for more than 20 seconds before skipping - as someone who has spent a superhuman amount of time and effort on their itunes library (not just adding music to it but tagging, artwork, ensuring the best sound quality) these issues to me are unforgiveable, and with a 50K+ song library almost certainly unfixable.

Anyway hell of a rant there, but I am just immensely frustrated with Apple. Granted I should have tried to get the 5500M fixed first, and I should have returned the 5600M before I ran out of time. So the potential waste of money is my fault as there were possible and actual solutions I didn't try or carry out. But the fact that so much is wrong with Apple products, whether hardware or software, all the entire time now - and I do admit that some of my complaints above are trivial at best, or possibly even a question of preference, but a lot of them too are huge issues - really makes me wonder if their staff use Apple products at all. How can there be 100s of people posting about these sorts of issues, for each issue, and most likely 10s of 1000s of people lurking with the same issues, and yet there not be someone who works at Apple who has the issue? Or is it really that even if an employee discovers said issue, unless it's related to their tiny niche of Apple they simply can't say anything? Does TC simply not use the stuff, or does he use it in such a limited way that he really sees none of this? Do they not read this forum (or that awful official Apple forum which never answers the actual question, as if the people who answer there either don't read properly or are simply bots) and think they should fix or at least improve this stuff?

Clearly still ranting, so will stop message. Anyone with answers to my numbered questions, or thoughts on my questions during the rants, more than welcome to reply. What I would rather not have though re the rants is someone telling me I'm using Apple products wrong, e.g. I should embrace the cloud, change how I hold my phone, should never put a MBP on a bed, 2FA is vital in today's age so stop rejecting it (and how hypocritical to yet also worry about privacy re the cloud), the large iphone drive is for taking video not adding files sideways, dont use your electronic watch in a shower, stupid. Also would rather not have someone tell me to use a different OS or ecosystem - we know there isn't really any competition. My point is though that Apple used to really give a proper care about "it just works". Why have they stopped? They've got the cash to pay for it.
 
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I think its this OS. I like the big screen and felt it ran well when I first got it with Catalina but now this 16 inch sucks. it gets weird and choppy. apps like iMessage takes 5 sec to open. why? sometimes I want to give away thins Mac for a loss. Apple really screwed up the operating system and this powerful laptop opens apps like its 1997.
 
Well in the end I didn't do it. I got heavily distracted and realised i wont be able to return the 5500M if i've modified its insides, and have run out of time to return the 5600M as well, which will soon become my primary machine (not that I will use any others, including the 5500M).
If thoughts about whether or not you can return such relatively expensive stuff came this far down on priorities I don't feel sorry for you. 😆

Basically all your problems can be summarised like this: Something was broken; and you should have returned it.

It's reasonable to reset the machine and try to cut down on the variables involved; so you can verify that it isn't just your chosen set of software causing it. But beyond that there's nothing to do or think about, you just have to return it; and if you go past some deadline, or break warranty, then it's just about calling them to see what your options are right now. They'll tell you.
 
Lol it's alright I don't want sympathy, I just wanted a working machine. I understand your point though, but like I said heavily distracted. Make of that what you will :)

As it came with Applecare getting it looked at won't be an issue, I just wonder whether it's worth waiting until the ARM generation if they choose to replace it, but in most likelihood even with the ARM machines released they'll still have an intel machine with 5500M as part of the line-up, like the 13" MBP still has old machines offered, and they'd give me that. So I'm probably answering my own question there.

Appreciate returning it is now the necessary course of action, but I wanted to avoid doing that if there was a simpler DIY solution (esp. considering covid and needing it for work from home). However, now with the 5600M I can transfer everything to it and then reset the 5500M, see if I can recreate the issue on it after it's newly reset.

I know I keep saying this but this is really the first MB i've had isues with, and if googling these issues found nothing then perhaps I would just accept I got a dud, but there is something going wrong for certain types of users, things that didn't go wrong with previous machines. This thing is maxed out and yet its temp is above 70 and there is huge lag as i type these very words, with nothing else open besides the basic processes. It's insane.
 
Lol it's alright I don't want sympathy, I just wanted a working machine. I understand your point though, but like I said heavily distracted. Make of that what you will :)

As it came with Applecare getting it looked at won't be an issue, I just wonder whether it's worth waiting until the ARM generation if they choose to replace it, but in most likelihood even with the ARM machines released they'll still have an intel machine with 5500M as part of the line-up, like the 13" MBP still has old machines offered, and they'd give me that. So I'm probably answering my own question there.

Appreciate returning it is now the necessary course of action, but I wanted to avoid doing that if there was a simpler DIY solution (esp. considering covid and needing it for work from home). However, now with the 5600M I can transfer everything to it and then reset the 5500M, see if I can recreate the issue on it after it's newly reset.

I know I keep saying this but this is really the first MB i've had isues with, and if googling these issues found nothing then perhaps I would just accept I got a dud, but there is something going wrong for certain types of users, things that didn't go wrong with previous machines. This thing is maxed out and yet its temp is above 70 and there is huge lag as i type these very words, with nothing else open besides the basic processes. It's insane.
Something definitely seems to be going on for some people; but… unless you can fix it with a reset, remove some sort of air blocking/isolating case, or use different software, then… You either say screw the warranty and go poking around inside the machine, or you return it.

When you sort of backtrack from the potential outcomes the situation becomes so much easier than trying to go through the process of identifying the exact problem, and then figuring out how to solve the exact problem.

So screw the problem, and go straight to the solution without doing the hard work first. :)
 
Lol it's alright I don't want sympathy, I just wanted a working machine. I understand your point though, but like I said heavily distracted. Make of that what you will :)

As it came with Applecare getting it looked at won't be an issue, I just wonder whether it's worth waiting until the ARM generation if they choose to replace it, but in most likelihood even with the ARM machines released they'll still have an intel machine with 5500M as part of the line-up, like the 13" MBP still has old machines offered, and they'd give me that. So I'm probably answering my own question there.

Appreciate returning it is now the necessary course of action, but I wanted to avoid doing that if there was a simpler DIY solution (esp. considering covid and needing it for work from home). However, now with the 5600M I can transfer everything to it and then reset the 5500M, see if I can recreate the issue on it after it's newly reset.

I know I keep saying this but this is really the first MB i've had isues with, and if googling these issues found nothing then perhaps I would just accept I got a dud, but there is something going wrong for certain types of users, things that didn't go wrong with previous machines. This thing is maxed out and yet its temp is above 70 and there is huge lag as i type these very words, with nothing else open besides the basic processes. It's insane.

Just return it to get fixed.

I would say this is mainly Intels fault however. The HP Z book laptop I got recently was much worse in comparison to the 16” MBP, with the keyboard roasting hot and basically unusable as a laptop on the table.

I was really blaming Apple until I had the HP experience. That went immediately back to HP - it was terrible.

Lucky for us we have the M pro laptops coming soon.
 
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