Yeah true that! Was mainly just wondering if the IDLE cpu temps are known for increasing around 10-20 degrees after being plugged into an external display
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(2019) 16" is HOT & NOISY with an external monitor! :(
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I get your point, but so far, even with fans running at max, the CPU rarely goes beyond 65-70C.
Which I suppose is well below what could cause damage.
I haven't checked the temperature of the GPU, but I suppose it would be similar?
Mine, depending on the room temperature, and using external display and open lid:
Cool room (20-23C): between 55-60C
Hot room (27C): 65-70C
This is not idle. I was just using my usual apps (Safari, Chrome, Mail, Coda 2, Excel).
Certainly not CPU or GPU intensive.
If I close my lid, it goes down at least 5-10C.
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So 80C do seems a little on the hot side.
Is this a brand new Mac? Meaning.. could it still be indexing?
It's only about 6 days old so perhaps possible, should note that I've used it on off for first 3-4 days and since then have had it shut off until turning back on today so could possibly still be finishing up some indexing?
The performance I bet is significantly better (processing power-wise). The penalty for all of the power is worse than before.
I seriously doubt anyone here would buy a brand new car and just accept that it barely overheating when carrying passengers is normal and will not degrade long term reliability.
I understand that the perpetual beta-ness of macOS Windows ME (Catalina) is "normal" by 2020 Apple standards, but it shouldn't be. We're paying top dollar for this equipment and deserve a better answer than "it's normal, deal with it."
A lot of us buy Macs because we intend to have them for 5+ years, which seems unlikely if the fully integrated hardware is constantly stressed. If one component fails due to constant heat stress, throw the whole thing out because replacing an expensive logic board on a three year old computer doesn't make a lot of sense when you can just get the new one.
Why do some people just want us to suck it up and accept Kyle's answer about this? I really don't understand that.
Apologies for the rant, but it really pisses me off. Just fix the damn drivers, Apple and AMD. Geez.
I understand that the perpetual beta-ness of macOS Windows ME (Catalina) is "normal" by 2020 Apple standards, but it shouldn't be. We're paying top dollar for this equipment and deserve a better answer than "it's normal, deal with it."
A lot of us buy Macs because we intend to have them for 5+ years, which seems unlikely if the fully integrated hardware is constantly stressed. If one component fails due to constant heat stress, throw the whole thing out because replacing an expensive logic board on a three year old computer doesn't make a lot of sense when you can just get the new one.
Why do some people just want us to suck it up and accept Kyle's answer about this? I really don't understand that.
Apologies for the rant, but it really pisses me off. Just fix the damn drivers, Apple and AMD. Geez.
While I basically agree to you post, with ??I disagree. The hardware is not constantly stressed, its working within its termal limits since the components are certified for this temperatures.
However, overly sipping power and hence heating the whole thing up, limiting it thermally for no reason at all IS preposterous, the more so considering Apple‘s asking prices.
If this is as designed as state by Apple, I guess this can be viewed as a design-wise declaration of bancruptcy. They should do, and certainly aim, for something better than this
Just because 99 Celsius is ‘within the thermal limits’ does not mean it’s not going to lead to shorter life for components compared to running at 40-50 Celsius like it should be.
Also it’s no big deal if it spikes up during heavy tasks, that is to be expected, but we’ve got computers that will run at 80+ all day doing nothing intensive at all - just because it’s plugged into an external monitor.
Also it’s no big deal if it spikes up during heavy tasks, that is to be expected, but we’ve got computers that will run at 80+ all day doing nothing intensive at all - just because it’s plugged into an external monitor.
Reality check.
80C all day just because it's plugged to external monitor doing nothing intensive is NOT happening. At least in my case.
Continuous 80+C temps I see only when running simultaneously Cinebench and luxmark - and this is regardless external monitor connectivity. When I export movie in Final Cut I see either GPU (e.g. HEVC 8bit - GPU accelerated) or CPU (e.g. HEVC 10bit) reaching and keeping around 80C during export.
I'm not saying everything is perfect and apple/amd couldn't do better. I do confirm overall temps are higher 10-15C when external monitor is in play with dGPU activated.
I just don't like when people generalise with extreme statements.
For the reference - last 30 days on my MBP16 CPU/GPU tmps below (To be fair I've selected my "casual" account I'm using everyday for office/leisure type of work - just to demonstrate nothing wrong is happening with thermals on MBP16. I have another "working" account for video/photography which obviously shows higher temps when working - still within ~80C max continuous)
Yeah, 80 degrees under load is nothing to get worked up about compared to the 100 that the MBA will regularly hit.
Not saying that unnecessary or inefficient power consumption and noise isn’t an issue.
Not saying that unnecessary or inefficient power consumption and noise isn’t an issue.
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How is the i9 Macbook Pro with 5500m 8GB video card when connecting to a 24 inch Ultrafine monitor? Would it overheat?
Really looking at this setup for work in Mac OS and the occasional bootcamp game. Really over how difficult it is to try and get an eGPU working with my current 13 inch Macbook Pro in bootcamp.
For me I wont use two screens. I either use the inbuilt screen on a Macbook Pro or use it in clamshell mode with an external display, so from what I'm reading I should be ok as most of the issues seem to be while using 2 screens.
Really looking at this setup for work in Mac OS and the occasional bootcamp game. Really over how difficult it is to try and get an eGPU working with my current 13 inch Macbook Pro in bootcamp.
For me I wont use two screens. I either use the inbuilt screen on a Macbook Pro or use it in clamshell mode with an external display, so from what I'm reading I should be ok as most of the issues seem to be while using 2 screens.
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CPU and GPU temps are not the only issue. Many components get hot and aren't connected to the heat pipe and may only be reported by lower than actual proximity sensors or not reported at all. We also don't know what sensors apple uses to decide fan speed.
I don't find it a stretch at all to imagine a system that runs at or close to max fans (something at thermal limit) most of the time will die in one way or another sooner than another that doesn't.
After less than a year of such use my fans have started making weird noises and the dGPU graphics have started glitching. Apples tech tests which they only run without an external display report no issues.
Be careful with 30 day graphs as well, as the results will necessarily be sampled down, probably to an average. Each pixel of width on the graph might represent over half an hour or more, making it look like there highs are lower or less frequent than they are.
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Yes, it will run hotter and louder than without the external display, unless you get lucky (right cable, monitor, refresh rate) in clamshell.
It's also been reported by tally ho tech that the 5300m gets better frame rates (steady 60 vs 75 then dropping below 60). I suspect because the additional dGPU heat or power usage is triggering CPU power/frequency reduction.
That's why I ordered the 5300m and 2.4ghz i9 (lower thermals for a given CPU load with better binned chip). But you might get lucky with a 2.4 CPU stamped as 2.3.
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Does this problem affect the i7 as well? If the i9 is being throttled with high temperature then maybe the i7 with 5300m is going to perform more consistently.
And do you have your laptop open or closed?
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All of that is correct:
- I have the lid open (I'm typing from there right now)
- I have one external monitor (a 27" 4k Dell U2720Q) plugged into the MBP 16" base i9 model via a USB-C cable
- I've been running both screens for almost 30 minutes now
- I also have one virtual machine running (Windows 10 through Parallels)
My Radeon GPU Proximity is 140 degrees.
My fans (both left side and right side) are at 0%.
The ambient temperature of my den (I actually do have an indoor thermometer!) is 70.3 degrees.
Oh my gosh, the part you lined out might be key. I think I might have an answer: a laptop stand! I use one of these: Rain Design mStand Laptop Stand.
Not only does a stand allow for better air flow (the fans don't get blocked), I just read this blurb on the Amazon page that my be key: "Single piece aluminum design provides solid stability and acts as a heat sink to cool laptop".
Maybe I've been cheating this entire time
Post some screenshots please.
There is no such thing as 0% fan in iStat.
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Hello everyone, so I have more or less the same issues. Just the fans spinning on both instances (closed and opened) with the external display plugged in.
Just wondering if there is any possible side-affects from this to the laptop? Constantly its around 70C temperature.
Just wondering if there is any possible side-affects from this to the laptop? Constantly its around 70C temperature.
It's helpful if people advise what type of monitor they are plugged into, especially if experiencing this issue in clamshell mode as it does seem very unusual for it to happen even when the lid is closed.
Sorry, I'm using a Dell U3417W. Monitor doesn't have USB C support, has HDMI. So I have a USB C Docking Station from TOTU which the monitor is connected VIA HDMI and Docking Station connected to my Mac via USB C.
The AMD Radeon RX 580 & RX 570 Review: A Second Path to Polaris
Very interesting article—scroll down to the part about external monitors. It seems like there is a basic Radeon limitation with respect to memory clock switching. The GPU can lower or increase the memory clocks based on load. Normally this happens during the screen refresh, to avoid tearing. When there are multiple monitors with different configurations, there is no predictable moment both monitors will be blanked. So the driver keeps the memory clock at full tilt at all times.
Very interesting indeed, however I'm not sure if this is the same kind of limitation on the 5000M series considering some people have success using strange combinations like Macbook screen (1920p@60hz) with an external monitor set to 1440p@144hz, getting 5W. Reducing the monitor's refresh rate to 60hz like the Macbook screen makes the dGPU consumes 18W.
I also tried driving two identical monitors (1440p@60hz) while closing the lid and got the infamous 18W.
I also tried driving two identical monitors (1440p@60hz) while closing the lid and got the infamous 18W.
Hi everyone, I read the past few 100 posts in this thread, and I still have a question. I'm hoping someone may post their experience.
I sold my 2016 15" MBP i7 with Radeon Pro 455 to get a new 2020 13" MBP i7. Unfortunately the iGPU is too slow for me, so I'm planning to return it to get a 16" (I could have planned that better from the beginning, but hey, mistakes happen).
I'm using my MBP with an external LG 4K Display scaled to 2560x1440 HiDPI and I leave the MBP open (no clamshell).
The 2016 MBP used to become quite hot in that configuration and fans always were at around 2500 rpm. The 2020 13" MBP is cooler and fans are around 1600 rpm (because of the lack of dGPU).
Now, I'm not really interested in power consumption. I know the 5500M draws too much power and people are complaining. What I'm interested in is fan noise.
What's your experience with this? Do fans get even higher than the 2500 rpm I used to get on my 2016 MBP in that screen configuration? I'm worried that it might be noisier than my old MBP. If it's about the same, I can manage. Louder would be too much.
Thank you for your insights!
I sold my 2016 15" MBP i7 with Radeon Pro 455 to get a new 2020 13" MBP i7. Unfortunately the iGPU is too slow for me, so I'm planning to return it to get a 16" (I could have planned that better from the beginning, but hey, mistakes happen).
I'm using my MBP with an external LG 4K Display scaled to 2560x1440 HiDPI and I leave the MBP open (no clamshell).
The 2016 MBP used to become quite hot in that configuration and fans always were at around 2500 rpm. The 2020 13" MBP is cooler and fans are around 1600 rpm (because of the lack of dGPU).
Now, I'm not really interested in power consumption. I know the 5500M draws too much power and people are complaining. What I'm interested in is fan noise.
What's your experience with this? Do fans get even higher than the 2500 rpm I used to get on my 2016 MBP in that screen configuration? I'm worried that it might be noisier than my old MBP. If it's about the same, I can manage. Louder would be too much.
Thank you for your insights!
Probably often louder than 2500rpm. But if iGPU is too slow, you might as well get the 16". If it's too loud, you can return it within 14 days or get an eGPU.
Thank you.
Can anyone tell me what typical fan rpm values are for an idle 16" MBP drawing the infamous 18W for GPU?