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My Mac mini is only allowing a refresh rate of 144 Hz, rather than 240 Hz

I recently purchased a Mac mini with an M4 chip and connected it to my monitor using a HDMI 2.1 cable. However, the Mac mini is only allowing a resolution of 2560 x 1440 at a refresh rate of 144 Hz, rather than the 240 Hz I had expected. Is there a way to resolve this issue? Do I need to use a Thunderbolt 4 cable instead? My monitor does have a Thunderbolt 4 port, so I’m not sure if that’s the solution.

[Re-Titled by Moderator]

Posted on Nov 13, 2024 6:46 PM

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7 replies

Nov 16, 2024 12:47 AM in response to den.thed

Okay, I’ll give that a try. It’s strange that it won’t support 240Hz refresh rate. The HDMI cable I have is “Ultra Cable Certified.” I’ve tried both HDMI ports on my monitor, and yes, I’ve verified that it’s a genuine certification.

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Level 10

82,540 points

Nov 13, 2024 7:27 PM in response to chasemarshall

That info is needed to provide the optimal connection method.

In the mean time, see > Connect a display to Mac mini - Apple Support

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Level 10

82,540 points

Nov 13, 2024 6:53 PM in response to chasemarshall

What brand and model is your Display...?

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Nov 13, 2024 7:00 PM in response to den.thed

Sorry I’ll check in a bit, but I know it has its capability because it works on my windows pc.

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Nov 14, 2024 1:03 PM in response to den.thed

sorry for the wait, I couldn't find where to find the model. MSI MPG ARTYMIS 273CQRX-QD

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Level 10

82,540 points

Nov 14, 2024 1:46 PM in response to chasemarshall

https://www.msi.com/Monitor/MPG-ARTYMIS-273CQRX-QD/Specification

I would test a different a short 3.3' high speed 8K HDMI cable

or... a short 3' high speed 8K TB/USB-C to DisplayPort cable.

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Level 10

82,540 points

Nov 16, 2024 7:08 AM in response to chasemarshall

Check with msi support to see if they can help with the display setup.

https://www.msi.com/Monitor/MPG-ARTYMIS-273CQRX-QD/support

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My Mac mini is only allowing a refresh rate of 144 Hz, rather than 240 Hz

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