My TB3 proximity goes above 60C with a display connected but no fan problem luckily
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(2019) 16" is HOT & NOISY with an external monitor! :(
- Thread starter Appledoesnotlisten
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Yeah mine the same. Not really sure I believe that the controller for TB is the issue.
Issue or not but it definitely growth up temps from 33 C to 60 C and it's sensitively. Add here hot CPU, GPU and you get uncomfortable to use device.
This is my day 2 of working in clamshell mode connected to the ultra widescreen Philips 346B1C monitor via usb-c. All fine so far, temperature in the 50-55C range, fan speeds are 1,700 to 1,800rpm. Radeon high side proximity showing as between 4-6W. No fan noise at all including when on MS Teams video calls. So, I'm definitely sticking with this mode going forward. Although I had to invest in some decent speakers as I can't use the integral ones in clamshell mode. Plus a stand for my MBP is on order to help further with heat dissipation, one of those stands where the MBP can be put in vertically. All a bit of a workaround but it seems to deal with the noise issue, so I'll live with it while continuing with the Apple Support escalation in parallel as I do still believe that the "lid open" noise when connected to a display is not something that we should accept as "expected behaviour".
Don't want to state the obvious but make sure you point the rear exhaust up.
I see so many people that use vertical stands with the fan exhaust pointing down just to have the apple logo show "right" that it makes me cringe lol. Worst yet some of those have no airflow underneath so they actually block parts of the vents. 🤯
But with this stand this should not be a problem. Quite a few people have them.
BookArc | Vertical Desktop Stand for Macbook
BackPack for iMac is a hidden storage shelf for hard drives and accessories, adding a space-saving shelf to the back or front of your iMac or Apple Display.
www.twelvesouth.com
By the way, an AMD Radeon Pro 5300 is supposed to be integrated in the upcoming iMac.
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I got myself a stand too but one where the MBP is lifted up to match the hight of my external monitor. The bottom of the MBP is also free and it helps a lot with temperatures both in clamshell mode or with open lid.Absolutely, I will do. Read about that last week
Acutally since i use that stand (Twelve South Curve) my MBP runs almost 5C cooler with open lid and fan speed at idle is 95% of the time below 2.000 rpm. Of course GPU is still drawing 18W but the machine is silent and temperature is 58C most of the time.
The advantage of this stand is obvious: you can use your MBP both in clamshell and with open lid and either way it's in the optimum position regarding thermals. I have to admit though that a vertical stand looks definitely cooler but as I intend to use my MBP both in clamshell and with open lid the Curve was the thing to go for me.
Curve for Macbook and Laptops from Twelve South
Elevate MacBook performance and comfort with Curve, a stylish stand designed for Apple laptops. Avoid tech neck or neck pain by raising your laptop screen.
www.twelvesouth.com
But with this stand this should not be a problem. Quite a few people have them.
BookArc | Vertical Desktop Stand for Macbook
BackPack for iMac is a hidden storage shelf for hard drives and accessories, adding a space-saving shelf to the back or front of your iMac or Apple Display.
Hot air always travels up. It's easier on the system this way.
Even on this stand you have the inner area where the air will bounce creating a hot pocket which after some time might trigger the fans to work faster to compensate for that.
I got the Bookarc and I still point the laptop up. It's just common sense.
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It's on a recent macrumors article
I guess, as a group, we can start leaving 2-star reviews on Amazon and other major online retailers too?
I don't know whether it's fair or not, the device deserves a solid 3.5 stars rounded down to 3, with this issue solved, it would round up to 4
If there was a better screen, it would be a solid 5
But the 2-star reviews would definitely push Apple to action, considering not many people leave reviews - we could up the stars to 3 or 4 once/if it's solved
I guess, as a group, we can start leaving 2-star reviews on Amazon and other major online retailers too?
I don't know whether it's fair or not, the device deserves a solid 3.5 stars rounded down to 3, with this issue solved, it would round up to 4
If there was a better screen, it would be a solid 5
But the 2-star reviews would definitely push Apple to action, considering not many people leave reviews - we could up the stars to 3 or 4 once/if it's solved
I also think that this USB-C thing is interesting because I use a USB-C hub that gets warm under macOS but stays cool under Boot Camp. Very weird.
(Maybe it's just the hub's fault, but I don't know)
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There's something about the GPU:
iMac: Just Updated With M4 Chip! Features, Price, and Buying Advice
Apple's iMac is an ultra-thin all-in-one desktop computer that was refreshed with the new M4 chip, a minimum of 16GB of memory, a nano-texture...
www.macrumors.com
But I could swear that this information was also in this article, but I'm probably wrong.
Shipping Estimates for 27-Inch iMac Continue to Slip, Now Into September
Amid rumors and hints of a forthcoming update for the iMac, supplies of Apple's current 27-inch iMac continue to dwindle with mid- and high-end...
www.macrumors.com
I use a 144hz monitor for gaming so I would say I'm used to have a reactive display, but still, I can't see any ghosting on my mbp16 whatsoever
After reading that thread, I did see it, can't unsee it either - but it wasn't like it's happening only on 16" - it was there on my 2017 15", it's there on my Dell P2415Q too - the thing with Macbook is, since you scroll smoothly, it's infinitely more noticeable, if you scroll with a mouse wheel, it's easier on the eyes, so a Desktop 60Hz > Internal 60Hz, only in terms of text ghosting - for video playback etc. - It's not an issue, but it definitely causes a good amount of paranoia and constant trigger
Since we are all power conscious - I suggest buying a TC66:
If you guys think USB devices use more power on MacOS compared to Windows/Bootcamp, I can test it if you want
But I'll also say this, once I used a powermeter, I got rid of all my unnecessary dongles - I suspect they cause a good amount of wear too
Some unnecessarily pull 0.1+A - my Logitech 500Hz dongle pulls a hefty amount too, together, an old "Trust" brand USB 3.0 Hub pulls close to 0.15A - it's almost 1W - not enough to generate the heat, but if you leave them connected overnight, it's enough to cause damage (I contributed 25% of my swollen Macbook's to the dongles I left connected 24/7)
---
Edit, Just tested:
Initially, on MacOS, USB 3.0 Hub was pulling 0.168A
Bootcamp, it was pulling 0.119A - so 0.04A less - significant, as it was almost 30% less
Back into MacOS, it started pulling 0.147A - so it's still more then Windows, but for some reason, less than what it was originally pulling when the device was connected for some hours
Out of curiosity, when the device sleeps, it pulls 0.054A - so it's some relief
Now this is a USB 3.0 Hub-only device, and the least power using one I have, the hubs you are using with all those connections and microchips for those connections, might be pulling close to 1A, you may never know, 1A with 5V is live 5W :/ - so it's best to always test
Since we are all power conscious - I suggest buying a TC66:
If you guys think USB devices use more power on MacOS compared to Windows/Bootcamp, I can test it if you want
But I'll also say this, once I used a powermeter, I got rid of all my unnecessary dongles - I suspect they cause a good amount of wear too
Some unnecessarily pull 0.1+A - my Logitech 500Hz dongle pulls a hefty amount too, together, an old "Trust" brand USB 3.0 Hub pulls close to 0.15A - it's almost 1W - not enough to generate the heat, but if you leave them connected overnight, it's enough to cause damage (I contributed 25% of my swollen Macbook's to the dongles I left connected 24/7)
---
Edit, Just tested:
Initially, on MacOS, USB 3.0 Hub was pulling 0.168A
Bootcamp, it was pulling 0.119A - so 0.04A less - significant, as it was almost 30% less
Back into MacOS, it started pulling 0.147A - so it's still more then Windows, but for some reason, less than what it was originally pulling when the device was connected for some hours
Out of curiosity, when the device sleeps, it pulls 0.054A - so it's some relief
Now this is a USB 3.0 Hub-only device, and the least power using one I have, the hubs you are using with all those connections and microchips for those connections, might be pulling close to 1A, you may never know, 1A with 5V is live 5W :/ - so it's best to always test
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Do you just take the current settings, change the refresh rate to 50 Hz and that's it? I've been trying to do that, but it's problematic. The main display is LG 5K and it wants me to reboot before activating any changes. Even after I do, none of the "custom" resolutions get activated. There was a whole bunch of them by default, but none can be set active. Only the stock resolutions (middle tab) can.
The two side panels can be set to 50 Hz, but the center LG doesn't want to listen. It runs at 60 Hz and I can't get the power consumption below 20 W.
Anyone else done the SwitchResX trick with LG 5K?
Actually no. I uninstalled everything, shut the lap off, connected the monitor and cleared SMC --> Reboot.
That's the only way I would consider this fixed. The second I have to change something then we're exactly where we've been before.
Exactly. And lets not forget it is also not limited to 100W there. CPU and GPU can feast on full power (constraint 1 gone; who cares for additional 18 watts need here). AND they have physical space for much better cooling (Constraint 2 gone), as mrmachine79 said.
EDIT: Makes me wonder about one thing. And that may be a stupid question. Is it technologically possible to design a laptop that would draw for example 150w while plugged in (using a respective adapter), thereby removing power limitations to CPU/GPU (= workstation mode), while it limits overall consumption to 100W while mobile? I am thinking this would deliver the best of both worlds: Workstation quality and speed while plugged in and sufficient power while mobile when it does not need to power an external display in most cases. The MBP16 seems to have a lot of cooling capacity; the main bottleneck seem to be the 100W limit and high power draw by GPU. I am just dreaming here of course..
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I think many PC laptops behave this way, and I think it's often counted as a negative. Performance drops significantly when running on battery. On MBP it is counted as a positive, performance is the same on battery or power adapter. I believe those high power PC laptops are also extremely noisy.
Quite fair. Get your point.
I do wonder though how that equality really helps in our case here with the MBP. If I really do hard work on my MBP16 while on battery, it draws 70W and is flat in little more than an hour. So I need to bring a charger anyway, if I need to do any substantial crunching work while mobile. However, adding the charger does not give me any additional power reserve/wattage. Guess we have to live with it, but I wished Apple had some kind of ‚power‘ mode that could release CPU+GPU from its cage, while plugged in. But that‘s besides the point of this thread here, as I agree and hope that Apple would just fix the Drivers And give CPU+GPU more headroom this way.
God I hope not. From this whole experience discrete GPUs are a disaster with both Apple and AMD.
I guess it could be good news too, unless there's an integration fault with our machines, they probably consider 5300/5500 to be a success
I, for some reason, started thinking they were covering something up by blasting the GPU with 20W
Maybe there's a subtle change but we might never know ... :/
I, for some reason, started thinking they were covering something up by blasting the GPU with 20W
Maybe there's a subtle change but we might never know ... :/
Do your usb-c dongles or usb-c to hdmi adapters also get too hot? Mine is too hot to hold after few minutes of external display connected with lid open. I tried either dongle or adapter - both too hot. External display within Windows 10 via Bootcamp generates much less heat. Hope there will be an update soon because this is insane.. Cant work properly because I worry too much to have fans constantly ramping at 3-4K rpm, noise and excessive heat is also too distracting. 2 hours battery life with external monitor doing nothing just connected - what a dissapointment.
But with this stand this should not be a problem. Quite a few people have them.
BookArc | Vertical Desktop Stand for Macbook
BackPack for iMac is a hidden storage shelf for hard drives and accessories, adding a space-saving shelf to the back or front of your iMac or Apple Display.
By the way, an AMD Radeon Pro 5300 is supposed to be integrated in the upcoming iMac.
That’s exactly the stand I’ve ordered 👍