There is a report that noise is generated when applying high load with iPhone 7/7 Plus, what is the cause?



On the iPhone 7/7 Plus that was just released, a report that "When you give a high load to the processor you hear noise" is a hot topic.

My iPhone 7 Plus is Emitting Noise From Logic Board (Updated) - 512 Pixels
https://512pixels.net/2016/09/iphone-7-plus-logic-board-noise/

This report was published by the blog site "512 Pixels". Mr. Stephen Hacket, a blogger, got a brand new iPhone 7 Plus and was trying to restore the device from iCloud, but he noticed something sounds. When I thought of something and checked the terminal, I heard that the sound was heard from the rear of the iPhone 7 Plus, just around where the A10 Fusion processor was located. Mr. Hackett is tweeting "I hear it from my iPhone 7 Plus when hidden noise is high load" on Twitter.


In addition, the sound at that time is also released in the following movies.

IPhone 7 Plus Noise Under Load - YouTube


Another user also said, "When I launch the application with my iPhone 7 on my ear, I hear something like a hiss noise (saying sir), I do not know if this is spec or broken," a tweet is posted It is.


Also on Twitter# Buzzgate(Buss gate) and# Hissgate(His Gate) has been followed by posts with hash tags in succession. From the fact that the keyword "~ Gate" reminiscent of a major incident is used, I can see how much attention is gathering all over the world.

Mr. Hacket, who released this issue, contacted Apple about the repair and replacement of iPhone 7 using Apple Care, but he said that he was able to get it replaced. However, it seems that it was not instantly replaced, so Twitter also said that "it will take 5-7 business days to exchange a phone that was a defective item with a brand-new item." That tweet that feels a bit uncleariy I am posting it.


Although it is a "His gate" that is exciting on the net, it is said that among researchers familiar with machines, "We can not say it is normal, but it is what I expected," he said. In the case of a terminal equipped with a processor such as a CPU or a GPU, it is natural for an electronic device that a kind of "beat sound" occurs when a load is applied, and the problem is the level at which the volume is located , It seems that it is supposed to be an explanation with an engineer's eyes.

No, hisses and buzzes are not unique to iPhone 7 and are not a problem | iMore
http://www.imore.com/no-hiss-buzz-not-unique-not-iphone-7-problem

This may be said to be related to any computer related product, and it may be said that it is a problem that makes it conspicuous especially on smartphones that do not have noise sources such as fans and HDDs. It is said that if you carefully listen to your ears it will not matter if you can finally hear it, but if you feel oblivious or obviously abnormal, once you inquire to the manufacturer It might be good.

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in Mobile,   Hardware, Posted by darkhorse_log