3 ms·

For a while, the fan was broken in my 2017 MacBook Pro 13". Didn't spin at all. The MacBook never complained (except when running the Apple hardware diagnostics

For a while, the fan was broken in my 2017 MacBook Pro 13". Didn't spin at all. The MacBook never complained (except when running the Apple hardware diagnostics). It didn't overheat or shut down unexpectedly. It just got a bit slower due to more thermal throttling. I expect it would work the other way, too. Improve the cooling and performance under load would improve.

Dayshine 6y ago
https://www.youtube.com/watch?v=MlOPPuNv4Ec https://www.youtube.com/watch?v=MlOPPuNv4Ec This is a video from Linus Tech Tips that demonstrates that no matter how much you cool it, they've physically prevented the chip from taking advantage of it. And if it could be fixed with software, they would have worked out how, they're into that kinda tweaking.
kube-system 6y ago
Intel chips, on the other hand, are designed to work with a varying degree of thermal situations because they don't control the laptop it is put in. In this situation, Apple could potentially get more creative with their approach to thermals because they control the entire hardware stack.
- dahfizz 6y ago
  Sure, if by "more creative" you mean handicap the CPUs by not delivering them any power because they know they can't cool them. https://www.youtube.com/watch?v=MlOPPuNv4Ec https://www.youtube.com/watch?v=MlOPPuNv4Ec
  - kube-system 6y ago
    Intel processors use Intel designed throttling solutions... which exist to keep their own processors from overheating because they have no control over the final implementation. These new M1 laptops are the first laptops that have complete thermal solutions designed by a single company. As an example, there is the potential to design a computer with no throttling at all if you are able to control the entire thermal design.
    - dahfizz 6y ago
      > As an example, there is the potential to design a computer with no throttling at all if you are able to control the entire thermal design. This is not true. A laptop needs to work in a cold room, in a hot room, when its radiator is dusty, etc. If your CPU is not willing to throttle itself then a company with Apple's scale will have machines overheating and dying left and right. For a computer to never _need_ to throttle, either (1)the cooling system has to be good enough to keep up with the max TDP of the CPU, or (2) you "pre-throttle" your CPU by never delivering it more power than the cooling system could handle. Apple refuses to accept solution 1, so they went with solution 2. If you watch the video I posted, it shows that even when there is adequate cooling, the new macbooks will not deliver more power to the CPU. In effect, the CPU is always throttled below its limit.

Dayshine 6y ago

https://www.youtube.com/watch?v=MlOPPuNv4Ec https://www.youtube.com/watch?v=MlOPPuNv4Ec This is a video from Linus Tech Tips that demonstrates that no matter how much you cool it, they've physically prevented the chip from taking advantage of it. And if it could be fixed with software, they would have worked out how, they're into that kinda tweaking.

kube-system 6y ago

Intel chips, on the other hand, are designed to work with a varying degree of thermal situations because they don't control the laptop it is put in. In this situation, Apple could potentially get more creative with their approach to thermals because they control the entire hardware stack.

dahfizz 6y ago
Sure, if by "more creative" you mean handicap the CPUs by not delivering them any power because they know they can't cool them. https://www.youtube.com/watch?v=MlOPPuNv4Ec https://www.youtube.com/watch?v=MlOPPuNv4Ec
- kube-system 6y ago
  Intel processors use Intel designed throttling solutions... which exist to keep their own processors from overheating because they have no control over the final implementation. These new M1 laptops are the first laptops that have complete thermal solutions designed by a single company. As an example, there is the potential to design a computer with no throttling at all if you are able to control the entire thermal design.
  - dahfizz 6y ago
    > As an example, there is the potential to design a computer with no throttling at all if you are able to control the entire thermal design. This is not true. A laptop needs to work in a cold room, in a hot room, when its radiator is dusty, etc. If your CPU is not willing to throttle itself then a company with Apple's scale will have machines overheating and dying left and right. For a computer to never _need_ to throttle, either (1)the cooling system has to be good enough to keep up with the max TDP of the CPU, or (2) you "pre-throttle" your CPU by never delivering it more power than the cooling system could handle. Apple refuses to accept solution 1, so they went with solution 2. If you watch the video I posted, it shows that even when there is adequate cooling, the new macbooks will not deliver more power to the CPU. In effect, the CPU is always throttled below its limit.