Every so often my iMac 27-inch 2020 iMac shuts down, it seems to happen while asleep and I am away.
Most often it restarts holding down the power button, sometimes I have to unplug/pug.
I ran an EtreCheckPro and here are the results, much appreciated if anyone can decipher and explain please.
Yep, I'm a novice at this.
I think I properly uploaded the Etre report...
iMac 27″, macOS 26.7
traveler582 wrote:
iMac shuts down, it seems to happen while asleep and I am away.
<EtreCheckPro report >
3.8 GHz 8-Core Intel Core i7
I see you are running the current 26.7.1 w/ the Safari update... that is good.
Nothing jumps out as egregious.
On the Intel Mac you can try resetting the System Management Control for power management/sleep issue and test.
Try resetting the System Management Controller Reset the SMC of your Mac - Apple Support
Unusual to see Safari issues, not sure if that would be related to your panics(?)
2026-10-05 22:09:11 Safari Crash (9 times)
First occurrence: 2026-10-01 08:17:47
Executable: /System/Volumes/Preboot/Cryptexes/App/System/Applications/Safari.app
2026-10-05 03:33:51 Kernel Panic (4 times)
First occurrence: 2026-10-04 04:45:34
Details:
panic(cpu 0 caller 0xfffffff00a5cb6cc): macOS panic detected
Panicked task 0xffffffdf61256930: 0 pages, 199 threads: pid 0: kernel_
task
2026-10-01 22:16:43 apfsd High CPU Use (2 times)
First occurrence: 2026-10-01 13:12:42
Executable: /usr/libexec/apfsd
2026-10-01 12:26:10 com.apple.WebKit.Networking Crash
Details: Safari
You can try disabling all Safari Extension you may have added if that is causing the issue, and compare your results. Safari>Settings> Extension. The Quit Safari and relaunch it holding the Shift key down, this is a bit of a fresh start for your Safari.app
For hardware issue see if it returns any error codes, not definitive by any means...
You can try running the User Diagnostics to test your Mac for hardware issues
Use Apple Diagnostics to test your Mac - Apple Support
It happened again last night :( I had to hold down power button to restart
Yes, sorry for that, that's what I meant, I will turn it on
fingers crossed
This seems to have fixed the crash problem! It's been almost ten days and no crash, thanks!!
traveler582 wrote:
This seems to have fixed the crash problem! It's been almost ten days and no crash, thanks!!
You're welcome.
iMac shuts down while asleep more and more....
