My Mac Studio system is sluggish and completely crashes

System: M1 Max Mac Studio

RAM: 64 GB

OS: macOS 15.5

Browser: Safari 18.5


I've had this Mac since they released.


Back in the days of the iMac G4, I could leave the computer on for over a month, without issues. When I got this Mac Studio, I continued to do the same. Seemed fine for a while. Last few months though, after only roughly 7 days or so, the entire system gets sluggish. My typical activities involve a lot of Twitch stream watching. Can normally watch 3-4 streams fine at 1080p60 stream quality, without any issues. After a few days of the Studio being on though, it can't do that many streams or even do 1080p60 anymore. I have to drop all the way down to 160p for all streams and even then, they all stutter. When this begins to happen, I usually restart the computer and then everything is smooth for a few days again. If I don't restart once streams start to stutter, the entire Studio crashes and reboots itself.


I have already tried doing a Disk Utility -> first aid, but that went quick and didn't report any issues.


Do silicon Macs have to be rebooted frequently to stay usable? I know they reboot fast, so not an issue, but it seems like it needs to be every other day or so.


[Re-Titled by Moderator]

Original Title: System sluggish and completely crashes

Mac Studio, macOS 15.5

Posted on Jun 5, 2025 3:16 PM

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Question marked as Top-ranking reply

Posted on Jun 6, 2025 1:17 AM

I definitely second the suggestion to use the Etrecheck application


This is a Diagnostic Tool that makes no changes to the computer.


It makes a coherent and readable inventory of both the Hardware and Software used on the computer 


The application is free or paid for added features. 


The Report will Not Reveal Any Personal Information. 


Post back the Full Report - Share Report >> Copy , then  paste  >>>> using the Additional Text Icon  <<<<



13 replies
Question marked as Top-ranking reply

Jun 6, 2025 1:17 AM in response to Mangoat

I definitely second the suggestion to use the Etrecheck application


This is a Diagnostic Tool that makes no changes to the computer.


It makes a coherent and readable inventory of both the Hardware and Software used on the computer 


The application is free or paid for added features. 


The Report will Not Reveal Any Personal Information. 


Post back the Full Report - Share Report >> Copy , then  paste  >>>> using the Additional Text Icon  <<<<



Jun 6, 2025 8:43 PM in response to Mangoat

Mangoat wrote:

I think that is remnants of when I transferred from another Mac to this Studio. I've never run it on this machine.

Still, it is there, and the report says installed May 15, just a short time ago:


User Login Items:

[Not Loaded] CleanMyMac_5_MAS_HealthMonitor (App Store - installed 2025-05-15)

Modern Login Item

/Applications/CleanMyMac_5_MAS.app/Contents/Library/LoginItems/CleanMyMac_5_MAS_HealthMonitor.app


[Not Loaded] CleanMyMac_5_MAS_Menu (App Store - installed 2025-05-15)

Modern Login Item

/Applications/CleanMyMac_5_MAS.app/Contents/Library/LoginItems/CleanMyMac

Jun 7, 2025 1:21 AM in response to Mangoat

Sorry I seem to late to the game per se


A lot of good observations / suggestion have been put forth from each of my colleagues


I tend to agree with the idea from @ HWTech " If you can reproduce the issue with just a clean install of macOS (no third party apps or restore from a backup), then that will make it easiest to get Apple's attention for a hardware or firmware issue that needs to be repaired or addressed respectively. "


You can do this now on you own or if you should need to have the Apple Technician evaluate the machine


They may insist on doing a wipe and clean installation before they may move forwards with possible Hardware explorations



Jun 6, 2025 10:24 PM in response to Mangoat

from EtreCheck report:

panic(cpu 9 caller 0xfffffe002ec1b598): DCP PANIC - IOMFB int_handler_gated: failure: axi_rd_err

DCP is the Display Co-Processor.


IOMFB is the I/O Mobile Frame Buffer


int_handler_gated ...... Interrupt Handler


Unfortunately this Kernel Panic could be caused by just about anything that is using the DCP....could be hardware or software. You are using multiple video related apps such as OBS, Twitch, PrimeVideo, etc.


There are multiple forum threads from 2021 for users of macOS Monterey reported a very similar KernelPanic when watching HDR videos. Supposedly macOS 12.1 resolved the issue with 2021 M-series Macs where they would panic when watching HDR YouTube videos. However, I have seen other threads from as late as 2023 reporting what appears to be the same DCP Kernel Panic as shown here. Unfortunately I have not found any threads where anyone followed up with a final resolution. I guess people never contact Apple about the issue & escalate to the system engineers to get a final resolution to determine if it is a hardware, software, or firmware issue. Or they just never post any updates after getting it resolved.


I would recommend contacting Apple support directly for assistance. You will likely need to have them escalate it so an engineer will actually examine & interpret the Kernel Panic. You can really help by performing a clean install of macOS & testing the laptop thoroughly before installing any third party software & before restoring from a backup. This is the only way to confirm whether it is a hardware or software issue. In fact, if you have access to another Mac running macOS 15.x Sequoia, then it would be best to perform a DFU Firmware Restore since it resets the security enclave chip, system firmware, internal SSD and pushes a clean copy of macOS onto the internal SSD (the current data will be lost, so make sure to have a good backup first). However, if you cannot perform the DFU Firmware Restore, then a clean install of macOS through traditional means is close enough for now.


If you can reproduce the issue with just a clean install of macOS (no third party apps or restore from a backup), then that will make it easiest to get Apple's attention for a hardware or firmware issue that needs to be repaired or addressed respectively.


If you can identify exactly what triggers the Kernel Panic, then that can be useful information for Apple especially if it occurs using Apple's own apps. If it only occurs with a specific third party app, then contact that app's developer to report the issue.


If a clean install with no third party apps works fine, then try installing your third party apps one at a time makeing sure to test them thoroughly before installing the next one. Since this is a video/GPU related issue, I would suggest testing each third party video app first after you test watching videos using Apple's built-in apps first.


Of course you can try uninstalling various apps from your current installation to see if you can locate the troublesome app (assuming it is a software related issue) although this can be a bit tricky since some apps may not uninstall completely.


And as others have already noted, CMM definitely needs to go since it is notorious on this forum for causing all sorts of problems.

Jun 6, 2025 11:15 PM in response to Mangoat

Mangoat wrote:

You mentioned OBS, which I deleted back in early 2024. Was that still listed in the report?

It appears to be a camera extension support for OBS & not the full OBS.


I deleted the application CMM from my applications folder. Anything else need to be done with that? I've read it is difficult to remove, but the 3 library folders I've seen people mention to check in, I saw nothing.

Best to run EtreCheck again to see if any trace of it remains.


Ouch. I was afraid of doing anything to wipe my system.

Since you have stuff clinging on from an older system a clean install followed by just migrating the home user folder(s) is a good way to help clean things up especially when going to a whole new architecture. Manually downloading & reinstalling the current versions of third party apps you want & use today is a good option. I always do this when moving to a different architecture such as Intel to M-series Macs, or when I know my older system has a lot of apps installed which I no longer want or need (hold over from my days of using Windows perhaps).


Since the EtreCheck report only references a single Kernel Panic, this could be good news & it is an issue with some third party software. The performance issues can easily be due to some of that third party software as well. You do have some items installed which I am unfamiliar, but I'm also not a macOS software expert. I will need to leave the more detailed software analysis to the other more knowledgeable contributors.


For performance issues, you can also try disconnecting all external devices to see if that makes any difference in performance. External drives can certainly cause problems especially if the drive has a hardware issue. Sometimes two different attached devices can have compatibility issues as well.


You can certainly try uninstalling various apps to see if it helps instead of a clean install. It all depends on how you want to troubleshoot it. Both are valid options. Since you do have 128GB of Free storage space as of the time you ran the first EtreCheck report (that is just barely enough), you could create a new APFS volume and install macOS onto that new volume for some quick testing. It isn't quite as good of a test as a true clean install which involves erasing the disk, but it is close. Just make sure you never get below 20GB of Free storage space (only shown in Disk Utility and the Apple System Profiler, that space can disappear very quickly).....ignore the very misleading "Available" storage value shown everywhere within macOS. In macOS Free is not synonymous with Available.


Jun 6, 2025 4:31 PM in response to Owl-53

I ran the report. Seem to have 2 major issues.


Top one being kernel panics, which I assume are the sudden hard system crashes and reboots.


Heavy CPU usage, which I assume is Safari, since I do have a few windows open, most are down in the dock. If this this is the issue, it only started happening in the last few months. I've had this Mac Studio since 2022.


Below is the report, but it is the 2nd time I ran it. 1st time running it, I had 4 Twitch streams open at 160p. This report is having only 3 Twitch streams open at 160p. With 4 open I had a "Poor performance" listed as a major issue.



Jun 7, 2025 9:21 PM in response to Mangoat

I removed the OBS extension from the System Settings. CMM app is also deleted. Hopefully both apps are gone. Deleted both after someone mentioned deleting them. Did not do a system wipe yet. Planning to order a big external storage drive and count down on the number of additional things plugged into the Mac Studio. That said, after I deleted OBS and CMM, today I was too busy out of state to do anything with the computer. When I came home, it apparently had another kernel crash. While out, no game was open, no YT videos playing, but did have 1 Twitch stream open at 160p. Ran another report, which lists kernel panics, poor performance, and heavy CPU usage after just booting the machine up. Do have 2 Twitch streams open while the report ran.



Jun 6, 2025 10:47 PM in response to HWTech

You mentioned OBS, which I deleted back in early 2024. Was that still listed in the report?


I deleted the application CMM from my applications folder. Anything else need to be done with that? I've read it is difficult to remove, but the 3 library folders I've seen people mention to check in, I saw nothing.


Ouch. I was afraid of doing anything to wipe my system.

Jun 7, 2025 5:36 AM in response to Mangoat

I deleted the application CMM from my applications folder. Anything else need to be done with that?


Yes. Erase the Mac. Not only did you not follow its uninstallation instructions, if you actually used it to alter that Mac's contents, then the only remedy is to erase the Mac due to the effects of having used it.


Non-Apple "cleaning" products are destructive in nature. It's what they do. There is no "undo" with the exception of restoring a Time Machine backup created prior to their installation and use. For what it's worth the uninstallation instructions for "CleanMyMac" happen to be effective at removing all its active, system-altering components (it leaves at least one file behind, but it is inactive and does nothing malicious). That's not the point though. If you used it, the damage is done.


Rule 1 of Macs is don't install junk.


Ouch. I was afraid of doing anything to wipe my system.


Barring any hardware failures (which appear to be evident, and need to be addressed) that Mac will never work properly until you do. Fix the hardware first.

My Mac Studio system is sluggish and completely crashes

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