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The lesson is the same as always!

Never buy a Apple revision A product!!
I overclocked my iMac Core Duo for months. :p

I don't see how making this Aluminum iMac thinner helped either. :rolleyes:

We might be looking at a repair program for this.
 
my mac pro was freezing up with the apple screensavers, but switched to aquarium by sache and it didn't lock up
 
If it is just the heat it can be fixed with software. Apple could just downgrade the GPU clock a bit. One would hardly notice any difference in real life performance since the tolerable heat threshold is probably close anyway.

This could be a potential solution, but even though the actual deterimental effect to the end user may be negligible, the perception of Apple downgrading the performance of an already-criticized component to offset a heating issue would not be well received. :cool:
 
I does sound like a non-heat related GPU issue to me, particularly something that is corrupting the video memory.
 
The lesson is the same as always!

Never buy a Apple revision A product!!

How is this Rev A? Because it uses aluminium? I is no more Rev A than anything else new...

I think this is just like the MB Random shutdown...it is a hardware issue that Apple will eventually find a software workaround for...
 
I don't see how making this Aluminum iMac thinner helped either. :rolleyes:

I agree. As I said before, I'm all for Apple's minimalist design approach, however not at the cost of the machine's ability to perform properly. After all, this is a desktop machine - how thin does it really need to be? If Apple can pull it off, great, but if there are adverse effects such as this due to the smaller size, etc. then in my opinion it's not worth it.
 
I agree. As I said before, I'm all for Apple's minimalist design approach, however not at the cost of the machine's ability to perform properly. After all, this is a desktop machine - how thin does it really need to be? If Apple can pull it off, great, but if there are adverse effects such as this due to the smaller size, etc. then in my opinion it's not worth it.
They should have kept the old design and just released colors. :D
 
I don't think its a case design issue either. There is more space in their than your standard monster desktop replacement laptop and there is no battery either (although there is the PSU) and yet monster laptops don't seem to have this scale of an issue.
 
This article isn't accurate....

The problem (told to me by the Apple repair rep) is related to bad video memory, and requires an entire logic board (motherboard) replacement. This does explain why, after a good 4 - 10 freezes you eventually get a good working system for several hours as long as you don't utilize anything too graphically intense.

An overheating chipset can definitely damage VRAM if its in the proximity of the chip. Then, you'd run into problems on cold-boot as well.

If it is just the heat it can be fixed with software. Apple could just downgrade the GPU clock a bit. One would hardly notice any difference in real life performance since the tolerable heat threshold is probably close anyway.

That is a lawsuit waiting to happen.
 
An overheating chipset can definitely damage VRAM if its in the proximity of the chip. Then, you'd run into problems on cold-boot as well.



That is a lawsuit waiting to happen.

VRAM usually passes testing with flying colours, however. Although the tests performed by TT or Apple HT may not be thorough.

I agree. If they clock down the cards (and that can easily be discovered) it will be a bigger disaster for them.
 
A software patch could under-clock the GPU and/or memory to reduce the heat. Won't help performance, but it will help longevity.
Doesn't seem fair to me. We bought a computer with certain specifications, why should we have a downgrade? If that's the case, we should have a partial (very partial) refund, don't you think so?
 
An overheating chipset can definitely damage VRAM if its in the proximity of the chip. Then, you'd run into problems on cold-boot as well.

Oh, most definitely. I asked about this at the "Genius Bar"... I still can't say that with dignity.

... I asked about that and was told that their knowledge base didn't clearly indicate the root cause of the bad video memory, but that from what he was reading it appeared to just be faulty memory.

Bah!
 
Early MacBooks also had heat-related issues, though it was more of a shutdown than a freeze.

The Macbook issue wasn't caused by overheating. It was caused because it thought it was over heating. Basically, FWIR, the thermocouple wire was shorting out and the Macbook promptly shut down thinking it was overheating.
 
not sure how anyone could even consider it NOT to be a heat issue unless it's a denial thing. thinner build + metal casing= an obvious heat increase. open a huge pc tower, hold your finger on the vid card/ chip see how long it takes to heat. imagine how much quicker it happens in a tiny space. or how many lockups have users had on the previous white plastic (which i own) iMac? i've never had one.
 
Doesn't seem fair to me. We bought a computer with certain specifications, why should we have a downgrade? If that's the case, we should have a partial (very partial) refund, don't you think so?

And there lies the lawsuit. I am already upset to own a brand new repaired machine, I would be even more upset if they downgraded my performance.

A refund would be nice at this point, but a repair was all they would offer.
 
The Macbook issue wasn't caused by overheating. It was caused because it thought it was over heating. Basically, FWIR, the thermocouple wire was shorting out and the Macbook promptly shut down thinking it was overheating.

ok i could buy that in a sense except for the fact that the macbook isn't "metal" and therefore may be an entirely different issue. i still hold to the fact that the new iMac and MBP issues are heat related though, unless of course they have the same issue and due to the build are "reporting" an overheat more often/ or quicker. which would still prove the case in a sense.
 
not sure how anyone could even consider it NOT to be a heat issue unless it's a denial thing. thinner build + metal casing= an obvious heat increase. open a huge pc tower, hold your finger on the vid card/ chip see how long it takes to heat. imagine how much quicker it happens in a tiny space. or how many lockups have users had on the previous white plastic (which i own) iMac? i've never had one.
I read that the reason the new aluminum iMacs felt warm to the touch was because the metal case acted like a heat sink, therefore the internals must be cooler than they would be in the plastic case.
 
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