Don't be such a smart ass if you haven't used iStatica, there is no thing as cpu there, just a lot of PMU sensors. He is picking the highest temps. Anyways I do think iStatica is wrong and TGPro 2.61 is showing the actual temps as I tested both on my 14 inch and got the same results as Luke with iStatica and same results as MaxTech with TGPro.
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14" M1 Max - 100C on Cinebench R23, within seconds. YT reviewers get 51C.
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Don't be such a smart ass if you haven't used iStatica, there is no thing as cpu there, just a lot of PMU sensors. He is picking the highest temps. Anyways I do think iStatica is wrong and TGPro 2.61 is showing the actual temps as I tested both on my 14 inch and got the same results as Luke with iStatica and same results as MaxTech with TGPro.
In Max video (which I was commenting on), the performance between the 14“ (which runs 105C) and 16“ (which runs 90C) in the stress test is identical. Besides, the 14“ never runs the fans in max, which suggests that the machine is not yet at its thermal limit. So there is no evidence of CPU throttling.
Dint get me wrong, I’m absolutely certain that the 14“ will throttle in a demanding hybrid CPU+GPU workflow, especially once you go M1 Max. But it’s a chassis limitation. The 14“ probably can dissipate only around 60W which is not enough for full power M1 Max. But since the CPU only draws up to 40W or so, the 14“ should be more than adequate for CPU workloads (e.g. dev work). It will just be louder.
Powermetrics is included with your macOS installation and will show you a detailed breakdown of power used by various components.
How's lap use with the 14"? Does the bottom panel start burning you under load like the i9 16"? lol. I have a preorder on the 14" and am wondering if I should cancel and go 16" but I don't necessarily want to deal with the weight.
Powermetrics on heir own don't give me what I want.
I'll wait for all the monitoring tools to be updated and then will compare their readings with powermetrics.
About this... I have had my share of tests now... running Cinebench + Heaven on loop.
...it's still not maxing out the fan. It's just slightly louder than running Cinebench by itself but overall, the chip still isn't drawing that much power. I'm sure the M1 Max will throttle, but the M1 Pro seems to be able to run at full speed without issues in the 14" chassis at the very least.
Or maybe max fan speed will in fact be able to sustain full M1 Max performance for long enough in the 14" chassis. Who knows.
From what I'm seeing, it may just be that the new 16" chassis is completely overkill for M1 Pro, and may also be overkill for M1 Max.
That’s very impressive. Are the scores the same as if you run the tests separately?
Yeah, the scores are very similar. Maybe 5% less? I tried to use TGPro to max out the fans and the 14" MacBook would in fact be able to sustain about 85C temperature under that situation. I don't think anyone will have to worry about thermal throttling.
The fans do get... very loud when maxed out, though.
Powermetrics should give you what you need (if you're wanting to know if throttling is indeed occurring).
Trying
Powermetrics should give you what you need (if you're wanting to know if throttling is indeed occurring).
Try: sudo powermetrics | grep "CPU Average frequency as fraction of nominal"
This will give you the percentage of performance (against advertised) for your CPU cores
Very impressive indeed! This must be the first laptop that doesn’t throttle with combined CPU/GPU use!
Yeah, and as an aside, Cinebench on loop is about... I think maybe 50-60% fan speed and noise? It's 48dB exactly where the vents are, but just about 30-32dB where my ears are (the MacBook is directly in front of me). My office is pretty quiet at about 27-30dB, so it's somewhat audible, but as soon as I open the window, honestly, I can't hear the fan at all.
Looking for more reports and reviews.
Really not keen to get a chip which can reach 100°C and loud fans, especially with the already more tamed M1 Pro compared to the badboy Max. Here is an interesting comparisiom video, which lets me consider getting the binned model (just small differences in many tasks and fans are quieter): www.youtube.com/watch?v=9T15QdEOFh4
Really not keen to get a chip which can reach 100°C and loud fans, especially with the already more tamed M1 Pro compared to the badboy Max. Here is an interesting comparisiom video, which lets me consider getting the binned model (just small differences in many tasks and fans are quieter): www.youtube.com/watch?v=9T15QdEOFh4
I have the 16" Max with the 10/32 setup and 64gb memory. I hit 120 degrees on cinebench multi core test. My 2017 intel mbp does the same thing. M1 fans kicked on around 95 degrees but never maxed out. I used istats to max the fans out and ran it again. never went over 100 degrees. (all degrees in farenheit because the usa has issues)
This thread got me thinking so I did a full test just for my own personal curiosity. These were my results.
16" MPB M1 Max 10/32 config. with 64 memory 2TB drive
OS- Monterrey 12.1
Cine Scores
Multi - (system fan control) - max temp 95˚C - score 12370
Single - (system fan control) - max temp 69˚C - score 1533
Multi (fans maxed with istats) - max temp 70˚C - score 12363
Single (fans maxed with istats) - max temp 68˚C - score 1533
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If you want to step it up a notch, repeat this test while also running something that torches the GPU. Might be the only way to get the CPU to actually start throttling.
Don’t think running tests can cause electric shock. Possible explanations in the Reddit thread. One of the reasons I will only use quality peripherals.
A power surge would only kill the power adapter (see quote below). A lightning strike would kill the laptop and power adapter but since he only mentioned inside the laptop was affected so a power surge wouldn't be the cause.
He's driving two monitors so more load which translates to more heat. Excessive heat is known to cause a short which fries component and hence zap.
Curious if he was using default or custom fan profile (OP replied that he was using default). Maybe something to consider as a precaution.
"The laptop itself will normally be protected from most surges that a surge protector will trap by its mains adapter. The adapter may die with a surge, but because of the way the adapter works and the lack of a complete electrical path through the adapter, the surge will stop there.
The AC end of a typical adapter includes a diode bridge to convert the AC to raw DC, then a capacitor to store the DC energy during the gap between half cycle peaks of the supply. The capacitor presents semi-smoothed DC to an inverter driver that typically oscillates at a few tens of kHz to drive the primary of a small transformer. As this drive is at a substantially higher frequency than the mains, the transformer can be fairly small.
The secondary of the transformer goes through another diode bridge and into a further capacitor that produces a relatively smooth DC output. The output is monitored and compared with a reference (a zener diode) and the result fed back through an optical isolator to throttle the driver circuit to the transformer to keep output voltage at the correct level. This approach allows power supplies to operate seamlessly over an input voltage range of around 100 to 250 volts. (Early computer power supplies used to have a switch to allow the supply to work at 100 to 120 volts or 200 to 240 volts. If the switch was in the wrong position serious damage could occur.)
With modern adapters, common mode surges where both live and neutral experience the same surge pulse have no effect, and it is only when an extreme surge of tens of thousands of volts occurs that this can jump across from the transformer primary to its secondary, and then it would only be dangerous to a laptop if there was a path to ground through the PC.
A differential surge of perhaps 500 volts or more might fuse the diode bridge on the AC input, damage the input capacitor or the driver circuits, but this would normally cause only one cycle of surge into the transformer before the input circuits failed. With the high frequencies used in the transformer and the capacitor on the output side of the adapter, any differential voltage surge on the output should be less than a volt peak on the output and not cause any damage to the laptop itself.
In over 25 years of using these small power adapters with phone, tablets, routers, laptops, external disk drives, and more recently with some desktop PCs I have only had one adapter fail. This was on a router. I contacted the manufacturer to see if they could supply a replacement. They did, and they even did it free of charge.
If lightning strikes the incoming supply, then there is very little a surge suppressor or power adapter can do, and any device that provides an ongoing path to ground is likely to get fried."
He's driving two monitors so more load which translates to more heat. Excessive heat is known to cause a short which fries component and hence zap.
Curious if he was using default or custom fan profile (OP replied that he was using default). Maybe something to consider as a precaution.
"The laptop itself will normally be protected from most surges that a surge protector will trap by its mains adapter. The adapter may die with a surge, but because of the way the adapter works and the lack of a complete electrical path through the adapter, the surge will stop there.
The AC end of a typical adapter includes a diode bridge to convert the AC to raw DC, then a capacitor to store the DC energy during the gap between half cycle peaks of the supply. The capacitor presents semi-smoothed DC to an inverter driver that typically oscillates at a few tens of kHz to drive the primary of a small transformer. As this drive is at a substantially higher frequency than the mains, the transformer can be fairly small.
The secondary of the transformer goes through another diode bridge and into a further capacitor that produces a relatively smooth DC output. The output is monitored and compared with a reference (a zener diode) and the result fed back through an optical isolator to throttle the driver circuit to the transformer to keep output voltage at the correct level. This approach allows power supplies to operate seamlessly over an input voltage range of around 100 to 250 volts. (Early computer power supplies used to have a switch to allow the supply to work at 100 to 120 volts or 200 to 240 volts. If the switch was in the wrong position serious damage could occur.)
With modern adapters, common mode surges where both live and neutral experience the same surge pulse have no effect, and it is only when an extreme surge of tens of thousands of volts occurs that this can jump across from the transformer primary to its secondary, and then it would only be dangerous to a laptop if there was a path to ground through the PC.
A differential surge of perhaps 500 volts or more might fuse the diode bridge on the AC input, damage the input capacitor or the driver circuits, but this would normally cause only one cycle of surge into the transformer before the input circuits failed. With the high frequencies used in the transformer and the capacitor on the output side of the adapter, any differential voltage surge on the output should be less than a volt peak on the output and not cause any damage to the laptop itself.
In over 25 years of using these small power adapters with phone, tablets, routers, laptops, external disk drives, and more recently with some desktop PCs I have only had one adapter fail. This was on a router. I contacted the manufacturer to see if they could supply a replacement. They did, and they even did it free of charge.
If lightning strikes the incoming supply, then there is very little a surge suppressor or power adapter can do, and any device that provides an ongoing path to ground is likely to get fried."
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Come on, don’t be silly. If that was a problem then gaming laptops and PCs would be frying left and right - they are pumping much more heat than M1 Max.
It’s most likely a faulty internal power rekated circuitry, a flaw in a capacitor or a coil or something like that. These things happen.
That user always ,when its an issue with the M1 macs,...its here. Of course this could be an , hopefully , one of its kind faulty internal power. Lets just hope this will not elevate and a lot more users will get this
For now, everything is fine here...and i bet on your part too since you did not mention something until now