How to improve Mac mini M4 cooling for gaming and prevent internal fan stress?

Hello Jour,

Do not put thermal paste on the housing: it will stain the aluminum and a block of metal on top will block the Wi-Fi. To best cool the Mac mini M4, the easiest solution is to raise it slightly with pads or use a ventilated laptop stand. Fresh air being sucked from the bottom, clearing the bottom is much more effective. Finally, don't worry about the fan, it's designed to run fast without getting damaged, you can let macOS manage this automatically. Have a nice day :)

Daylar wrote:

I got a Mac Mini M4 for my wife that is being used for gaming, primarily World of Warcraft. It’s being ran at 60FPS and as a result, the top of it get’s hot to the touch. We do have the Mac Fan Control app and boost the fan speed to a constant 3750rpm, sometimes higher if necessary. If we don’t, everything starts to stutter because of the high internal temps.

It got me thinking, I know the case is designed to be a heat sink of its own, but it just doesn’t feel like it’s keeping up. I’m actually considering getting a PC CPU heatsink to put on top of the Mac Mini to help with heat dissipation and to lower the stress on the internal fans cause I’m sure boosting them up every day has got to be taking a toll on them.

My biggest concern, is putting thermal paste on the casing and the apple logo on top, will it cause damage to the exterior case? Additionally, would this cause interference with the internal WiFi? I know I’ve read several reviews of docking stations causing the WiFi problem.

Thoughts?

I have a couple thoughts.

Adding thermal paste and an exterior heat sink just sounds like a bad idea. Interesting and innovative, but bad.

If gaming is so important to you and your wife, then this Mac mini is likely not the best choice of computer for that task. Macs have never been known as the better platform vs PC for gaming, nor even a very good platform. Better to get your hands on an inexpensive PC or gaming console than to coat your Mac mini with thermal paste and kludge together a heat sink to the exterior.

As for the question of wi-fi interference... who could really say? Of course the potential is there, but one would never know until it was tried. Not many are willing to try that particular setup.

I would simply avoid taking that step.

The air intake and exhaust are on the bottom of the M4 Mac mini.

Running a small fan across the front and top should help cool the case.

Another thing that you can do with MacFanControl, is setup the Sensor-based control.

That way the M4 Mac mini's exhaust fan will only speed up when extra cooling is required.

There can be software causes. If you have installed unneeded anti-virus, "cleaning/optimizing" or VPN software, those can run up temps.

I second the suggestion to use risers to let more air under the Mini. I'd say 3/4 inch/20mm should suffice.

Your Mini has built-in thermal protection. If the computer does not seem to slow while playing the game, the internal monitors are not worrying. In the presence of potentially damaging heat, the first thing the built-in systems do is to clock back the processor to reduce its workload. If that does not help, the computer will do a safety shutdown. Not sure about now, but "back in the day," thermal shutdowns happened with no advisory messages.

If it is a software issue, we can play a protracted game of "20 Questions" with you, or you can post a system config report that may let us solve this with only one more post from you. Fortunately, there is a safe,secure way to do that.

If you want a data-driven evaluation in this setting where we can neither see nor touch your computer, please post an EtreCheck report. We can quickly and within the limitations of these forums help you determine what issues are at play. 

EtreCheck Pro is available here: https://etrecheck.com/en/welcome.html

The free version will do nicely for this purpose, although the app is worthy of our financial support.

We can see hard data about drive performance, software issues/interferences, and RAM usage. Etrecheck is the development of a long-serving and trusted ASC contributor. It is a reporting app, not a "fix-it” app, expressly for displaying information in these forums to help us help you remotely. It will not reveal any personal or secure information.

Please see this excellent user tip on how to post long text reports like EtreCheck's into a forum response:

How to use the Add Text Feature When Post… - Apple Community

NOTE: Please post the entire report unedited. There are subtle hints there that may seem trivial to a new EtreCheck user, but can speak volumes to those of us who have evaluated thousands of them.

Have you tried pointing a domestic fan at the mini to help cool the exterior?

An even easier and cheap way is to use the large screw top off a jar. This was off a jar of hot chocolate drink.

Although I did chicken out eventually and get this stand at the knockdown price of £4. It has the advantage of being able to accommodate one or more SSD/NVMes beneath it.

The question is how hot are the CPU and GPU cores getting and not the case.

If the CPU and GPU cores temperatures are under 80-85C, then the hot case is doing exactly what it is supposed to do, radiate internal heat.

This is an east way to lift up the Mini a bit. It also lets you get to the Power button easier.

They are available at Amazon.com for $6.99 (dang those tariffs and the Hormuz Straite).

Agreed, the only purpose of thermal paste is to give as good a thermal contact between a heatsink and a hot component, and it should only be used where components are connected under pressure like a gpu or cpu heatsink.

I believe the wifi is transmitted from the bottom and not the top.

Anyone thought of trying this solution?

Might work with a snorkel.