this post was submitted on 30 Sep 2023
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Apple may reduce the performance of the 3nm A17 Pro processor due to massive overheating of the iPhone 15 Pro::The problem of overheating of iPhone 15 Pro and Pro Max smartphones is becoming widespread. It is possible that Apple will be forced to take the unpopular step of reducing the performance of the latest 3nm A17 Pro chip.

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[–] [email protected] 117 points 1 year ago (9 children)

How does something like this not show up in tests?

[–] [email protected] 101 points 1 year ago (1 children)

During tests they were holding it wrong.

[–] [email protected] 68 points 1 year ago (3 children)

It does.

Usually engineering and R&D sees these things, but they are too scared to contradict ambitious timelines set up by management.

[–] [email protected] 41 points 1 year ago (1 children)

Or they report it to their managers, and those managers are too afraid to report it up the chain to contradict an ambitious timeline.

[–] [email protected] 2 points 1 year ago

Or they do report it up the chain but upper management doesn't care and gamble that users won't notice or encounter the issue.

[–] [email protected] 19 points 1 year ago* (last edited 1 year ago)

Or marketing. I've heard innuendo that at Apple, marketing has vetoes

[–] [email protected] 0 points 1 year ago

lol hardly

Imagine engineering teams accounting for actual user behavior. No, this is on testing and the product development teams.

[–] [email protected] 21 points 1 year ago (3 children)

They just figured oh well it works well in Cupertino. They omitted the fact that Cupertino doesn’t get super hot, ever.

[–] [email protected] 14 points 1 year ago (1 children)

oof i can’t imagine using it in my country where it’s 30 degrees celcius and above on average everyday.

[–] [email protected] 4 points 1 year ago* (last edited 1 year ago) (1 children)

oof i can’t imagine using it in ~~my country~~Apple's home state, California where it’s ~~30~~ 40+ degrees celcius and above on average ~~everyday~~ in summer, and Death Valley has pretty much the world record.

I mean if they didn't test it in Cali I wouldn't know where at all...

[–] [email protected] 2 points 1 year ago

California is a big state with lots of different climates. The bay area doesn't typically get that hot.

[–] [email protected] 7 points 1 year ago (3 children)

I haven’t noticed a heating issue and I live in a very hot climate. So, it’s not universal.

[–] [email protected] 3 points 1 year ago

Same here, no issues so far.

[–] [email protected] 2 points 1 year ago (1 children)

My 15 pro max is cold all the time, I haven’t played any 3d games yet though. It was cold during restore process and it’s cold when charging

[–] [email protected] 1 points 1 year ago

Yeah I’ve not had problems on any of my families 15 or 15 Pros, however my iPad Air 5 got hot af last night installing iOS 17 and I ended up putting it in a stand and pointing a fan at it lol

[–] [email protected] 5 points 1 year ago

People have used it in very hot areas and it has been fine, with no overheating issues.

People have used it in very temperate areas and it has turned into a small furnace.

The controlling variable is almost certainly not ambient temperature.

[–] [email protected] 14 points 1 year ago* (last edited 1 year ago)

I can assure you it did, they just hoped no one would notice

[–] [email protected] 13 points 1 year ago (1 children)

I could see a case made for the test units having much better heat transfer and once mass produced the silicon lottery inevitably made some chips run hotter. But those variances are not massive, so it would've already had to run pretty hot. IDK

[–] [email protected] 7 points 1 year ago (1 children)

When developing a product you order "process corner" chips that are primarily used for testing the memory timings (through a process called Shmoo) to make sure it is stable. The "FF" class of these chips are also useful for testing thermals as they draw the maximum power you will see with the silicon lottery. So assuming Apple did this properly they should have had a good idea of what the product temperature is at the operating temperature extremes.

[–] [email protected] 2 points 1 year ago

Interesting, so SOP would rule that out too. I didn't know this.

[–] [email protected] 10 points 1 year ago

Seems they don’t test

[–] [email protected] 8 points 1 year ago

Oh they knew. Apple is just pure scum.

[–] [email protected] 1 points 1 year ago

It does. But what is hot to me is different than what is hot to my wife. My 11 pro gets really hot if you fast charge it.

[–] [email protected] -3 points 1 year ago