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Are the new iMacs PWM Free?

iMac - MacRumors Forums - forums.macrumors.com
Google didn't help me on this one...

Wondering if the new lineup is PWM free? I see on the iFixit teardown for the 27" that it has listed a PWM controller, but I'm not positive that means it uses PWM and will have the issue.

I am curious about the entire line, but mostly about the 27".

Also, I'm sure there's been a lot of discussion, but if anyone could give me the quick and dirty on whether or not any GPU upgrade on the 27" is worthwhile?

Thanks!

 


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