![]() Macprobackup (disk3s2 - Journaled HFS+) /Volumes/macprobackup : 998.93 GB (687.53 GB free) NO NAME (disk4s1 - MS-DOS FAT32) /Volumes/NO NAME : 62.17 GB (62.04 GB free) Macintosh HD (disk2s2 - Journaled HFS+) /Volumes/Macintosh HD : 999.35 GB (846.02 GB free) Hitachi HUA722010CLA330 disk2: (1 TB) (Rotational) Yosemite HD (disk1s2 - Journaled HFS+) /Volumes/yosemite HD : 499.25 GB (82.92 GB free) SAMSUNG HD502HI disk1: (500.11 GB) (Rotational) Samsung SSD 850 EVO 500GB disk0: (500.11 GB) (Solid State - TRIM: No) Ģ 3.46 GHz 6-Core Intel Xeon (Xeon(R)) CPU: 12-core My hypothesis is that when running App Store download, OS X (or macOS) thinks there is a power failure and turns off the computer.Ĭlick the links for more information from Apple Support Communities.Ĭlick the links for more information about that line. Not sure what exactly may have improve the situation disk check or “yes” command. While the command was running, I attempted to download the update from the App Store as before. Open a terminal and run the unix “yes” command (“yes >/dev/null 2>&1” ) Tried a suggesting I saw on another OS X related blog: I had resized the disk because it once was on a sdcard. This seems like a bug in High Sierra, but could be a hardware issue too I suppose.ĭoes not turn off when downloading through google browser.ĭownloaded half dozen apps from several sources and there was no “turn off”. I have run the AHT and it reports no errors. ![]() I have been able to repeat this for 10 times or more. ![]() When I click on the update button, the download progress bar starts, runs for a tiny bit, and then the computer turns off. There is a pending download for Xcode Command Line tools 9.1 update in the App Store Updates. With the clean install install of High Sierra, I have observed a sure fire operation that triggers the turn off. The 3rd disk has a upgrade from Sierra spinning drive, which also exhibits the "turn off" problem. ![]() One of the other disks, a Samsung 850 EVO SSD, has a clean install of High Sierra. I have three disks in the computer, one disk has Yosemite 10.10.5 which works fine. There is nothing significant in the logs, and there is no kernel panic notification when the computer restarts. Since then, while running High Sierra, the computer will turn off suddenly at certain times. ![]()
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