the reason of gpu failure

[zoran]

The reason for the gpu failure of 2009-2011 27" iMacs was overheating. Ok thats undersrtood, but was it that stock cards couldn't endure the overheat, or any card, even non stock cards that can be placed today will fail from overheat?

 

[throAU]

The reason for the gpu failure of 2009-2011 27" iMacs was overheating. Ok thats undersrtood, but was it that stock cards couldn't endure the overheat, or any card, even non stock cards that can be placed today will fail from overheat?

Wasn't just overheating, both Nvidia and and had a run of defective chips (something to do with the solder balls on the surface mount) which could sometimes be re-flowed to work again.

 

[zoran]

Would you like tips on how to improve the cooling system of these iMacs?

Of course.
Is having the fans rotate a lot using fan apps such a tip?

 

[Andrey84]

Of course.
Is having the fans rotate a lot using fan apps such a tip?

Looks like the forums won't allow AI-generated content, so my answer was deleted. What I did was to paste your question without any changes into ChatGPT and at the end it suggested to give you some tips - you can speak to the AI directly