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TwoH

macrumors 6502
Original poster
May 19, 2019
446
267
Hi,

Was just wondering if anyone else with an iMac 2012 27" has issues running Chess at full screen, max resolution.

It's weird -- it will run perfectly fine on El Capitan, and on Mojave however I have issues running it on High Sierra without it crashing + kernel related to the GPU.

Happens on every 2012 27" I've had my hands on, and the issue does not occur on a lower resoltion, or on the 2013 model, nor the 2012 21.5" model. I haven't been able to double check if all the 2012 iMacs have a 660M GPU or if they are all different(I'm swayed towards them all being only 660M - doubt there are any 675MX or 680MX in the building), however it is specific to only this machine, on High Sierra.

Swapping between an i5 and an i7 CPU has no changes, nor does RAM swaps.

Thanks

EDIT: This was tried with computer vs computer
 
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