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Officially, the late 2012 Mac mini will support two monitors in the following combinations: one HDMI monitor while using one Thunderbolt monitor two Thunderbolt monitors. As for the supported resolutions, the late 2012 Mac mini supports up to 2560 x 1600 on Thunderbolt monitors or up to 1920 x 1200 on HDMI monitors. Of course the above is the official ...


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Corsair Mac memory 8GB DDR3L-1600MHz, 204-pin SODIMM (CMSA8GX3M1A1600C11) I had 2 of this in my mac mini 2011 server, and run perfectly for 6 months , but now one memory has gone bad Still runs, finds no error in mem test, but mac reboots from time to time... the other 8 is fine so i have just 8 now till decide what to get


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I would suspect PRAM has some bad contents. Check this article on how to reset PRAM: https://support.apple.com/en-us/HT204063 Additionally, you may need to reset SMC: https://support.apple.com/en-us/HT201295


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I suggest getting high-quality USB-C to HDMI cables. You should never see link retraining messages unless your cables are flaky. I've had great luck with these: https://smile.amazon.com/gp/product/B073YPBWKB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 I run 4 4K monitors off my 2017 15" MacBook Pro, 2 from each side, one goes through an OWC ...


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Had similar issues for awhile, resolved via... Changing combination of adapters / cables / ports as underlying ASICs (Application-specific Integrated Circuits) seemed to have different preferences / properties / thresholds. Disabling 'Energy Saving' / 'Eco' / Etc. mode on connected displays. Connecting displays to non-'eco controlled' (master / slave) ...


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If you still can't update, you can try dosdude1's patcher at http://dosdude1.com/mojave.


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You can’t use three Thunderbolt 3 ports to drive three displays. You can accomplish this by connecting two Thunderbolt 3 to HDMI adapters/cables and one HDMI to HDMI/VGA/DVI adapter via the HDMI port. A couple of things to consider when connecting monitors: Use native signals rather than convert. Thunderbolt 3 is also DisplayPort, so it’s better to go ...


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See https://www.apple.com/mac-mini/specs/ I think you're getting into trouble by trying to run a monitor at 75 Hz. Either lower the resolution or the refresh rate. Try 800x600@60. Once that's stable, step it up a notch until you know the limits. I would also be susipscious of the quality of your HDMI to VGA adapter/cable. Does your monitor have an HDMI ...


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According to Apple Up to three displays: Two displays with 4096-by-2304 resolution at 60Hz connected via Thunderbolt 3 plus one display with 4096-by-2160 resolution at 60Hz connected via HDMI 2.0 [...] So it is important to not exceed the maximum resolution supported. Your 1080p Monitors seem to meet that spec so you will need to look at your ...


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