Problem iMac 27inch late 2012 turn off randomly
Hi, my iMac shuts down randomly for no reason. I try to turn it on and don't works. Now unplug the socket for a few minutes and the iMac magically turns on again. I encountered this problem for some time and also some stains on the screen. I have reported this issue to Apple and they replaced the screen even if out of warranty and they did all the hardware-test possible and left on for several days and found no shutdown.They have specified that maybe it's a software problem. The iMac is connected to an APC UPS and thought that was the problem, but even excluding the ups the problem recurs. I enclose the etrecheck-report as a discussion from ditocura https://discussions.apple.com/thread/6832695?start=0&tstart=0 .
If anyone has an idea what might be and how to fix this problem would be grateful!
EtreCheck version: 2.7.8 (238)
Report generated 2016-01-30 11:22:53
Download EtreCheck from http://etrecheck.com
Runtime 1:47
Performance: Excellent
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Check files] link for help with unknown files.
Problem: No problem - just checking
iMac (27-inch, Late 2012)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac13,2
1 2,9 GHz Intel Core i5 CPU: 4-core
8 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
BANK 0/DIMM1
Empty
BANK 1/DIMM1
Empty
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
NVIDIA GeForce GTX 660M - VRAM: 512 MB
iMac 2560 x 1440
SONY TV 2560 x 1440 @ 60 Hz
OS X El Capitan 10.11 (15A284) - Time since boot: less than an hour
APPLE HDD ST1000DM003 disk1 : (1 TB) (Rotational)
EFI (disk1s1) <not mounted> : 210 MB
Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk2) / : 1.11 TB (388.33 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 999.35 GB Online
APPLE SSD SM128E disk0 : (121,33 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Boot OS X (disk0s3) <not mounted> : 134 MB
Macintosh HD (disk2) / : 1.11 TB (388.33 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 999.35 GB Online
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. thunderbolt_bus
/etc/sudoers, File size 1302 but expected 2299
Mac App Store and identified developers
/Library/LaunchDaemons/com.robohippo.HippoConnectDaemon.plist
/Library/LaunchAgents/com.robohippo.HippoConnectAgent.plist
2 unknown files found. [Check files]
/Library/Extensions
[not loaded] com.caiaq.driver.NIUSBAudio2DJDriver (2.6.0 - SDK 10.8) [Support]
[not loaded] com.caiaq.driver.NIUSBAudio4DJDriver (2.6.0 - SDK 10.8) [Support]
[not loaded] com.caiaq.driver.NIUSBHardwareDriver (2.6.0 - SDK 10.8) [Support]
[not loaded] com.caiaq.driver.NIUSBTraktorAudio2Driver (2.6.0 - SDK 10.8) [Support]
[not loaded] com.caiaq.driver.NIUSBTraktorKontrolS4Driver (2.6.0 - SDK 10.8) [Support]
[not loaded] com.caiaq.driver.NIUSBTraktorKontrolX1Driver (2.6.0 - SDK 10.8) [Support]
/System/Library/Extensions
[not loaded] com.native-instruments.driver.NIUSBDeviceHelper (1.1.0 - SDK 10.7) [Support]
[loaded] com.adobe.AAM.Updater-1.0.plist [Support]
[running] com.bjango.istatmenusagent.plist [Support]
[running] com.bjango.istatmenusnotifications.plist [Support]
[running] com.bjango.istatmenusstatus.plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[running] com.robohippo.HippoConnectAgent.plist [Support]
[loaded] com.teamviewer.teamviewer.plist [Support]
[loaded] com.teamviewer.teamviewer_desktop.plist [Support]
[loaded] com.adobe.SwitchBoard.plist [Support]
[loaded] com.adobe.fpsaud.plist [Support]
[running] com.bjango.istatmenusdaemon.plist [Support]
[loaded] com.google.keystone.daemon.plist [Support]
[failed] com.prey.agent.plist [Support] [Details]
[loaded] com.robohippo.HippoConnectDaemon.plist [Support]
[loaded] com.teamviewer.teamviewer_service.plist [Support]
iTunesHelper Applicazione (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
NIHardwareAgent Applicazione Hidden (/Library/Application Support/Native Instruments/Hardware/NIHardwareAgent.app)
[running] com.apple.xpc.launchd.oneshot.0x10000005.EtreCheck
[running] com.native-instruments.NIHardwareService.92832
[running] com.shazam.mac.Shazam.64992
[loaded] com.shazam.mac.ShazamHelper
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 [Support]
FlashPlayer-10.6: Version: 20.0.0.286 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
AdobePDFViewerNPAPI: Version: 10.1.16 [Support]
Flash Player: Version: 20.0.0.286 - SDK 10.6 [Support]
AdobePDFViewer: Version: 10.1.16 [Support]
Default Browser: Version: 601 - SDK 10.11
PMCADownloader: Version: 1.2.1998.896 - SDK 10.5 [Support]
JavaAppletPlugin: Version: 15.0.1 - SDK 10.11 Check version
AdBlock
Flash Player [Support]
Native Instruments USB Audio [Support]
Skip System Files: YES - System files not being backed up
Mobile backups: OFF
Auto backup: NO - Auto backup turned off
Volumes being backed up:
Macintosh HD: Disk size: 1.11 TB Disk used: 717.35 GB
Destinations:
Backup sicurezza [Local]
Total size: 2.00 TB
Total number of backups: 30
Oldest backup: 10/11/14, 04:24
Last backup: 13/12/14, 13:27
Size of backup disk: Too small
Backup size 2.00 TB < (Disk used 717.35 GB X 3)
6% WindowServer
3% coreaudiod
2% fontd
1% kernel_task
1% Shazam
1.42 GB com.apple.WebKit.WebContent(7)
778 MB kernel_task
418 MB Safari
311 MB mds_stores
180 MB com.apple.WebKit.Plugin.64
2.86 GB Free RAM
5.13 GB Used RAM (1.25 GB Cached)
0 B Swap Used
Jan 30, 2016, 10:46:30 AM Self test - passed
El Capitan 10.11
8 GB 1600 MHz DDR3
2,9 GHz Intel Core i5
Thanks in advance!
Alessandro
iMac (27-inch, Late 2012), OS X Mountain Lion (10.8.3)
