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My M1 iMac can get noticibly quite warm around the bottom when I'm on a Zoom call with a lot of participants, or doing other intensive work like transcoding a video or something. I never audibly hear the fan, but I know it's running because warm/hot air is coming out of those bottom vents.

I haven't seen any sign of display anomalies, but fortunately I did extend my AppleCare recently so at least I'll have recourse if it goes bad.

Have you looked at Activity Monitor? My M3 is only getting hot there when the same 5-6 processes go crazy every day and I have to force quit them three times. I thought it's a Beta thing, but maybe it's more iMac related. It's not even warm if this isn't happening.

Looks like this and it happens without doing anything. Every time I looked for those when I not get warned by a menu bar app they all have 0.0% CPU usage.

Screen Shot 2024-10-02 at 06.18.09.png
 
Sad that it’s necessary to spend $200+ to protect your investment of sub-$150-worth of components.

Yep I completely take your point! 👍

But to be honest £60 a year for AppleCare+ on a BTO machine which cost me £2,500 and continues to give me a lot of pleasure, doesn't seem like such a bad deal.

(Whether maxing out the spec at Apple prices was wise is a different matter!! But three years on I'm still very happy with my machine - so I don't care!)
 
Have you looked at Activity Monitor? My M3 is only getting hot there when the same 5-6 processes go crazy every day and I have to force quit them three times. I thought it's a Beta thing, but maybe it's more iMac related. It's not even warm if this isn't happening.

Looks like this and it happens without doing anything. Every time I looked for those when I not get warned by a menu bar app they all have 0.0% CPU usage.

View attachment 2431579
That's the Photos app scanning your library for faces and other items you can search for in the app. The process is essentially always running but should only use start doing heavy loads once the computer is idle and not doing other tasks. If you have a large photo library the scanning can take weeks, with more time needed each time new photos are added.
 
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Thanks for bringing this up to Apple.

I'm also a victim of this issue. I've been using my iMac for 2.5 years before this issue occurred.

10 minutes ago, my screen blacked out and it is now completely dead.

The answer given by Joptap62 on Apple's forum under this thread is fairly accurate.

"The problem, apparently, lies in a cable that also powers the LCD...this cable (of the FFC/FPC type or Flat Flexible Cable / Flexible Printed Circuit), it has to sustain a very high voltage (around 50V) to power the LCD (this despite the iMac's power supply being 15.9V), and it heats up a lot!"

What happens next is that the rim becomes super hot when the iMac is switched on regardless of the brightness of the screen. There's a burn mark at the rim and I believe there's a short circuit inside. The screen now dies after 3 weeks.

I hope that Apple can offer a service program on this issue. My previous iMac lasts for 5 years before a hard disk failure.
 

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It's a factory defect. It's puzzling why Apple doesn't recall products for inspection and replacement like video card manufacturers do.
P.S.How many times can you write 24 inches everywhere? I'm sick of it. 23.5!!!
 
Had one do this. AppleCare+ coverage took care of the problem no cost.
In the UK at least, AppleCare+ terms and conditions explicitly exclude claims for manufacturing defects; only "accidental damage" is covered.

"AppleCare+ does not provide coverage for failure due to defects in design and/or materials and/or workmanship. Such failures will be covered separately either by your consumer law rights or the Apple Limited Warranty, or by Apple itself during the same period as the AppleCare+ Coverage Period, even if you did not purchase or lease your Apple product from Apple. If a product is defective, consumers may, in addition to any other rights which they may have under consumer law in the UK, have rights under the Consumer Rights Act of 2015.
...
“Accidental Damage” means physical damage, breakage or failure of Your Covered Equipment due to an unforeseen and unintentional event occurring either due to handling (e.g., dropping the Covered Equipment or through limited liquid contact such as spills) or due to an external event (e.g., extreme environmental or atmospheric conditions).

So you now have to drop your iMac on the floor in order to be able to claim under AppleCare+.
 
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Did not get AppleCare for this computer- my daughter has an M1 MacBook Air with a large white box in the middle left of the screen - very annoying… $400 to $500 to replace the screen - she is unfortunately living with it for now… FIRST computer in30 years that i decided not to get AppleCare :( feel a bit abandoned by apple 🍎
 
See this is my problem with all in ones. Is it the display component or the computer? Using a Mac mini or studio you can just put another cheap $200 display down (or buy used for even cheaper). With this you need to send the whole computer back.

I know this is highly controversial considering the immense amount of requests for 27+ iMac. But in the long run I don’t find these worth it at all. I went through my share of issues with the 2017 27” iMac.
I agree, had issues with mine too. The power button seemed to work intermittently when powering on (it wasn't actually a button issue). Had it apart loads of times to sort it out and whilst it's ok again now I won't buy another all in one.
 
A glaring issue is the $600 (after tax) Airpods max that keep failing people, they no longer pair with peoples hardware and then fail completely for no reason.
This is quite glaring issue, and as you mentioned in your full comment, they are taking a hard stance…

I have had that same problem two times, meaning I’m on my third Max pair. Always indoor use, I take them then off to air them every hour or so (or when they condense and wipe them), etc.
The second failing unit was even without use for 5 months as I was out of country, 3 months later it failed again in the exact same way. Not having high hopes for this last one.

Nothing else I have owned has been so bad, I even have 11+ years old TB Display and AirTime Capsule, working flawlessly.

The most annoying part I believe is the people that pile up against the users in all the forums while defending Apple… makes me wish for all those headsets to also break so that we finally get a permanent fix to all this.
 
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Meanwhile, my 27 inch 2010 iMac running Linux Mint works perfectly with no problems so far. Upgraded with 1 TB SSD and 32 GB RAM and it runs like a breeze. It's the perfect working computer for home office. When was the iMac M1 released? In 2020?
 
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Have you looked at Activity Monitor? My M3 is only getting hot there when the same 5-6 processes go crazy every day and I have to force quit them three times. I thought it's a Beta thing, but maybe it's more iMac related. It's not even warm if this isn't happening.

Looks like this and it happens without doing anything. Every time I looked for those when I not get warned by a menu bar app they all have 0.0% CPU usage.

View attachment 2431579
I do look at Activity Monitor if things are getting hot. Looks to me like your photo library is syncing and your spotlight is indexing. None of that is specific to the iMac, trust me.
 
Thanks for bringing this up to Apple.

I'm also a victim of this issue. I've been using my iMac for 2.5 years before this issue occurred.

10 minutes ago, my screen blacked out and it is now completely dead.

The answer given by Joptap62 on Apple's forum under this thread is fairly accurate.

"The problem, apparently, lies in a cable that also powers the LCD...this cable (of the FFC/FPC type or Flat Flexible Cable / Flexible Printed Circuit), it has to sustain a very high voltage (around 50V) to power the LCD (this despite the iMac's power supply being 15.9V), and it heats up a lot!"

What happens next is that the rim becomes super hot when the iMac is switched on regardless of the brightness of the screen. There's a burn mark at the rim and I believe there's a short circuit inside. The screen now dies after 3 weeks.

I hope that Apple can offer a service program on this issue. My previous iMac lasts for 5 years before a hard disk failure.
Is this the left of the screen when facing it or the right? Upper left or top corner. The picture looks confusing to me.
 
Is this the left of the screen when facing it or the right? Upper left or top corner. The picture looks confusing to me.
Left of the screen. The left rim above the burn mark is super hot and the burn mark is the hottest spot.

The right side of the screen is at room temperature.
 
Left of the screen. The left rim above the burn mark is super hot and the burn mark is the hottest spot.

The right side of the screen is at room temperature.
Got it. I took my Temp Measuring thing and measured the temperature on my iMac M3. It's been on constantly for the last 3 hours. The temperature is 85F on the left side. I also measured the top left corner area, it registered 87F at the hottest point. Along the very top of the screen its up to 88 then cools back down. Now I have sensitivity to brightness on computer screens so I keep my display a little bit more than halfway point. Anything brighter hurts my eyes. So it's about 55% brightness. Maybe thats why the temperature is not so hot.
 
Yep I completely take your point! 👍

But to be honest £60 a year for AppleCare+ on a BTO machine which cost me £2,500 and continues to give me a lot of pleasure, doesn't seem like such a bad deal.

(Whether maxing out the spec at Apple prices was wise is a different matter!! But three years on I'm still very happy with my machine - so I don't care!)
Definitely. I wasn’t criticizing you for doing it. I’m critiquing Apple for doubling the cost of their machines for what would typically be a $150 upgrade on a user-upgradable device. It’s an even bigger slap in the face for those components to be worthless if the machine fails for any reason.
 
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This is why I NEVER buy all-in-one computers: if one thing breaks, the whole thing breaks. Instead I bought a MacBook Pro for travel, and just connect it via Thunderbolt/DisplayPort to my Asus ROG Swift OLED gaming monitor to make it "desktop mode". The M1 iMacs also have overheating issues due to insufficient cooling, which might be related to the screen issues.
 
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I read this issue on Apple forums where someone actually had an engineer technician do a full analysis of the issue. Granted it was a third party company analysis, but it didn't sound good. It seems to me that they are prone to failure and its just a matter of time.


oh wow, thank you for sharing. Seems like a serious issues. I will not be getting an iMac unless this is addressed.
 
For EU citizens affected by this, remember our warranty laws:

No AppleCare means indeed only 1 year manufacturer warranty.

But you're very likely to have a 2 year _retailer_ warranty by law, just about saving you from this if you're lucky if you go back to the store where you bought this.
 
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I got the dreaded lines on my M1 24” iMac after about 28 months - the only resolution was an out of warranty repair - over £600 - thanks Apple
 
oh wow, thank you for sharing. Seems like a serious issues. I will not be getting an iMac unless this is addressed.
I'm not sure about the M3 since no one has taken it apart to compare the components. For the M1, I have zero confidence many will last 3-5 years. Sooner or later it will fail since it doesn't look like a component defect, but rather a design defect.
 
Related explanation from Apple Community forums.

The explanation I was given was as follows:

In terms of circuitry, everything seems to be working properly.

The problem, apparently, lies in a cable that also powers the LCD, which is located on one of the tops of the screen, and which, in order to be replaced, requires detaching the screen glass from the LCD itself, which is a very sensitive operation and almost impossible to carry out without damaging the LCD.

So the only option is to replace the entire LCD (LCD+main boards+screen glass).

Also, according to the technician's explanation, this cable (of the FFC/FPC type or Flat Flexible Cable / Flexible Printed Circuit), it has to sustain a very high voltage (around 50V) to power the LCD (this despite the iMac's power supply being 15.9V), and it heats up a lot!

So, what happens after a while (in this case after about 2 years) is that it starts to burn out and degrade at the connector, to the point where it lets the signals leak between the various connectors and short-circuits some of them, which ends up causing those lines that we are all unfortunately familiar with.

The level of brightness makes a fundamental contribution to this problem. Thus, the higher the brightness used, the sooner the problem occurs.

This is easily understood by measuring the difference in temperature at the top of the screen when it is at its lowest brightness level, compared to when it is at its highest. It's quite a big difference!

When it's at its lowest brightness, it's practically room temperature; when it's at its highest, you can almost "fry an egg"!

I think that as soon as Apple recognizes that there is a problem with these computers, the first thing it will do is make a change to the OS that reduces the maximum brightness limit allowed (to less than 500 nits). Time will tell...
 
It indeed is. The days of Apple making things right are long gone from my experiences and others. I've had them repair a phone and other things and they were happy to do it. Within the last year and a half, I know of several friends and myself where Apple told people "too bad" if they were out of the warranty period EVEN IF IT WAS A MANUFACTURER DEFECT. The Airpod Max thing is all over the internet with them bricking just months outside of the 1 year warranty. Imagine paying $600 for headphones that fail in 14 months due to a manufactuering defect (ie, not getting wet or dropped) and Apple knows it's a big problem.. only for them to expect you to eat that $600 product. As far as a "fair price to repair", they offer repairs on the headphones for $300 which is ridiculous.

All I am trying to convey is my experiences with Apple have been very different in the last 18 months, and from what I am learning, others are experiencing the same. Do not expect Apple to have integrity with repairs/replacing items that fail, but expect them to coldly walk away from you.
Supposedly the AP Max aluminum ear cups form condensation and it’s shorting out the electronics in the worst cases. The issue appears widespread. I wonder if it’s worse in more humid climates. I almost bought a pair but couldn’t justify the price when the Sony WH1000XM5’s got better reviews. I’ve used the Sonys for several hours almost every day for 32 months and love them. They’re also lighter.
 
Make a 2 year warranty mandatory and for more expensive stuff 5 years, like wasmachines, more expensive computers, cars off course, bikes and so on.
Stuff used to last, resources are limited.
 
Make a 2 year warranty mandatory and for more expensive stuff 5 years, like wasmachines, more expensive computers, cars off course, bikes and so on.
Stuff used to last, resources are limited.
EU markets all have a requirement of 2 (and sometimes more) years of protection against product defects. The process is usually not as easy to deal with as manufacturer guarantees, but as long as the defect can be reasonably shown to have been present (though not necessarily noticeable) when the product was sold, then the consumer has the right to make a claim to the seller, e.g., for covering cost of repairs.
 
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People in here acting like Apple is deliberately making their products to fail.

Truth is that it is impossible to build a product that does not fail at any point in time. It just doesn't exist - even our most basic implements like knives will eventually dull.
Apple machines keep repeatedly suffering from issues $200 Chromebooks don’t have. It’s always something like a $2 cable failing because of their shoddy engineering.

Obviously, if they just owned it and said “Our bad, there’s your refund or replacement” it would be fine. But they don’t do that do they?

Now, what is deliberate is leaving the customer out to dry until there is a class-action lawsuit. That is wilful malice.
 
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