Yosemite iMac shut down restart

Problem description:
Since Maverick, iMac 27 will not Shut down nor Restart! Rainbow ball is running often.
EtreCheck version: 2.0.11 (98)
Report generated 17 november 2014 10:28:39 CET
Hardware Information: ℹ️
iMac (27-inch, Late 2013) (Verified)
iMac - model: iMac14,2
1 3.2 GHz Intel Core i5 CPU: 4-core
24 GB RAM Upgradeable
BANK 0/DIMM0
8 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
BANK 0/DIMM1
8 GB DDR3 1600 MHz ok
BANK 1/DIMM1
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n/ac
Video Information: ℹ️
NVIDIA GeForce GT 755M - VRAM: 1024 MB
iMac 2560 x 1440
E2242 1920 x 1080 @ 60 Hz
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 0:58:7
Disk Information: ℹ️
APPLE SSD SD0128F disk0 : (121,33 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Boot OS X (disk0s3) <not mounted> : 134 MB
Macintosh HD (disk2) / [Startup]: 1.11 TB (444.10 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 999.35 GB Online
APPLE HDD ST1000DM003 disk1 : (1 TB)
S.M.A.R.T. Status: Verified
EFI (disk1s1) <not mounted> : 210 MB
Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk2) / [Startup]: 1.11 TB (444.10 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 999.35 GB Online
USB Information: ℹ️
Western Digital Elements 10A8 1 TB
S.M.A.R.T. Status: Verified
EFI (disk3s1) <not mounted> : 210 MB
WD1TB (disk3s2) /Volumes/WD1TB : 999.83 GB (135.51 GB free)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. FaceTime HD Camera (Built-in)
Apple, Inc. Keyboard Hub
Apple Inc. Apple Keyboard
Canon CanoScan
JMicron USB to ATA/ATAPI Bridge 1 TB
S.M.A.R.T. Status: Verified
EFI (disk4s1) <not mounted> : 210 MB
IomagaBU (disk4s2) /Volumes/IomagaBU : 999.86 GB (330.43 GB free)
Canon iP4800 series
Samsung Electronics Co., Ltd. Samsung ML-1510_700
Firewire Information: ℹ️
LaCie d2 quadra (button) 800mbit - 800mbit max
S.M.A.R.T. Status: Verified
EFI (disk5s1) <not mounted> : 210 MB
LaCieT (disk5s2) /Volumes/LaCieT : 999.86 GB (830.06 GB free)
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt to FireWire Adapter
Configuration files: ℹ️
/etc/hosts - Count: 20
Gatekeeper: ℹ️
Anywhere
Kernel Extensions: ℹ️
/Applications/VMware Fusion.app
[not loaded] com.vmware.kext.vmci (90.6.3) Support
[not loaded] com.vmware.kext.vmioplug.14.1.3 (14.1.3) Support
[not loaded] com.vmware.kext.vmnet (0210.30.67) Support
[not loaded] com.vmware.kext.vmx86 (0210.30.67) Support
[not loaded] com.vmware.kext.vsockets (90.6.0) Support
/Library/Extensions
[not loaded] at.obdev.nke.LittleSnitch (4050 - SDK 10.8) Support
[loaded] com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
/System/Library/Extensions
[loaded] com.avira.kext.FileAccessControl (1.0.0d1 - SDK 10.9) Support
[not loaded] com.focusrite.driver.usb2audio (1.9 - SDK 10.6) Support
[not loaded] com.motu.driver.USBMidiKext (1.6 49190 - SDK 10.4) Support
[not loaded] com.novatelwireless.driver.3G (3.0.2) Support
[not loaded] com.novatelwireless.driver.DisableAutoInstall (2.0.6) Support
[not loaded] com.phonic.PHONIC_FireFlyUSB.CustomExtension (1.32.01) Support
[not loaded] com.phonic.PHONIC_FireFlyUSB.KernelDriver (1.32.01) Support
[not loaded] com.roxio.BluRaySupport (1.1.6) Support
[not loaded] com.sophos.kext.sav (9.0.3 - SDK 10.7) Support
[not loaded] com.tomtom.driver.UsbEthernetGadget (1.0.0d1) Support
[not loaded] it.alfanet.squared5.DC30Xact.kext (1.6.1) Support
[loaded] tc.tctechnologies.driver.AlesisFirewire (3.5.6 11675) Support
/System/Library/Extensions/NovatelWireless3G.kext/Contents/PlugIns
[not loaded] com.novatelwireless.driver.3GData (3.0.2) Support
/Users/[redacted]/Library/Services/ToastIt.service/Contents/MacOS
[not loaded] com.roxio.TDIXController (2.0) Support
/Volumes/WD1TB/vanimac/Toast 11 Titanium 2/Spin Doctor.app
[not loaded] com.hzsystems.terminus.driver (4) Support
Problem System Launch Agents: ℹ️
[loaded] com.paragon.NTFS.trial.plist Support
[loaded] com.paragon.NTFS.upd.plist Support
Launch Agents: ℹ️
[loaded] com.avira.antivirus.general.agent.plist Support
[loaded] com.avira.antivirus.ipm.ui.plist Support
[failed] com.avira.antivirus.notifications.agent.plist Support
[loaded] com.avira.antivirus.odscan.default.plist Support
[loaded] com.avira.antivirus.scheduler.agent.plist Support
[running] com.avira.antivirus.systray.plist Support
[loaded] com.avira.antivirus.telemetry.agent.plist Support
[loaded] com.avira.antivirus.update.default.plist Support
[loaded] com.oracle.java.Java-Updater.plist Support
Launch Daemons: ℹ️
[failed] com.avira.antivirus.dbcleaner.plist Support
[loaded] com.avira.antivirus.ipm.loader.plist Support
[running] com.avira.helper.watchdox.plist Support
[running] com.bombich.ccchelper.plist Support
[loaded] com.klieme.TimeMachineScheduler.plist Support
[running] com.klieme.TimeMachineScheduler.wake.plist Support
[loaded] com.klieme.TMSHelper.plist Support
[loaded] com.macpaw.CleanMyMac2.Agent.plist Support
[loaded] com.oracle.java.Helper-Tool.plist Support
[loaded] com.oracle.java.JavaUpdateHelper.plist Support
[loaded] com.prosofteng.DriveGenius.locum.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.trashWatcher.plist Support
User Login Items: ℹ️
None
Internet Plug-ins: ℹ️
Flip4Mac WMV Plugin: Version: 3.2.0.16   - SDK 10.8 Support
FlashPlayer-10.6: Version: 15.0.0.189 - SDK 10.6 Support
EPPEX Plugin: Version: 4.1.0.0 Support
AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 Support
AdobePDFViewer: Version: 11.0.09 - SDK 10.6 Support
Flash Player: Version: 15.0.0.189 - SDK 10.6 Mismatch! Adobe recommends 15.0.0.223
Default Browser: Version: 600 - SDK 10.10
QuickTime Plugin: Version: 7.7.3
npSurveillancePlugin_1.0.0.429: Version: SurveillancePlugin_x86_64 1.0.0.429 - SDK 10.6 Support
JavaAppletPlugin: Version: Java 7 Update 71 Check version
User Internet Plug-ins: ℹ️
RealPlayer Plugin: Version: (null) Support
Google Earth Web Plug-in: Version: 7.1 Support
Safari Extensions: ℹ️
Amazon Shopping Assistant
SlickSavings
ClickToFlash
clea.nr Videos
Ebay Shopping Assistant
YoutubeWide
AdBlock
Searchme
Audio Plug-ins: ℹ️
DVCPROHDAudio: Version: 1.3.2
3rd Party Preference Panes: ℹ️
Flash Player Support
Flip4Mac WMV Support
Growl Support
Java Support
MacFUSE Support
Paragon NTFS for Mac ® OS X Support
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: OFF
Auto backup: NO - Auto backup turned off
Volumes being backed up:
Macintosh HD: Disk size: 1.11 TB Disk used: 667.73 GB
Destinations:
IomagaBU [Local]
Total size: 999.86 GB
Total number of backups: 17
Oldest backup: 2014-10-30 16:25:23 +0000
Last backup: 2014-11-16 17:13:31 +0000
Size of backup disk: Too small
Backup size 999.86 GB < (Disk used 667.73 GB X 3)
Top Processes by CPU: ℹ️
      3% WindowServer
      1% loginwindow
      1% avguard-ondemand-mgmt
      0% Safari
      0% fontd
Top Processes by Memory: ℹ️
515 MB savapi
515 MB Adobe InDesign CS6
309 MB avguard.bin
232 MB com.apple.WebKit.WebContent
232 MB Safari
Virtual Memory Information: ℹ️
19.28 GB Free RAM
4.18 GB Active RAM
879 MB Inactive RAM
1.43 GB Wired RAM
1.64 GB Page-ins
0 B Page-outs

Uninstall Sophos, Avira and CleanMyMac2 with the appropriate uninstallers.
Uninstall the 'SearchMe' adware: http://www.thesafemac.com/arg-spigot/
Check if the other software (Paragon, CCC, VMWare etc.) is up-to-date.
Report back with a new EtreCheck report if these steps didn't help.

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Cannot shut down, restart, or log off iMac

I have an iMac with OS 10.5.2. I use the Virus Barrier virus protection program and have not had any problems with it. However, immediately after installing the latest Virus Barrier update, my computer began acting strangely.
Most importantly, since that time I have not been able to shut down, restart, or log off my computer. When I try to take any of these actions, I get the standard message box asking, for example, "Are you sure you want to shut down your computer now?" I click on "Shut down" and the desktop icons and the menu bar disappear but then nothing at all happens. Sometimes, after a while, I may get a message saying that the action "timed out." I then click on the Finder icon on the dock, and the desktop icons and menu bar reappear. I've tried force-quitting the Finder, but that did not work. Even if I manually shut off the power, when I turn it back on, the desktop immediately appears without the usual beep and without going through the normal startup procedures. It seems that even when I turn off the power manually, the computer itself does not actually shut down.
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I contacted Virus Barrier support which advised me to uninstall the program. I did, but that did not help the problem. I've tried "Repair Disk Permissions" in the Disk Utility application, but that did not help either.
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DO NOT JUST PULL THE PLUG! Press and hold the power button until it shuts down fully. This can take several seconds. Once you are sure the fans are off, click the mouse a couple of times to make sure there is no response, then you can pull the plug, to be sure.
I suggest that you then start up in Safe Mode by holding the Shift key as soon as you hear the chime. The OS should start in the normal fashion, except you will see a Safe Boot legend.
Once you've logged in, bin the Finder .plist as suggest, and I'm make sure that all the Virus Barrier files are well and truly gone as well. Don't forget to check /Library/StartupItems and ~/Library/StartupItems. Once you reboot, things should be back to normal.
As suggested, AV programs are pretty much a waste of CPU on a Mac. If you really must have one, I recommend ClamXAV. Apart from anything else, it's free.

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This morning my iMac shut down suddenly. All I had open was Google Chrome and I was just on Facebook and that's it. When I tried to boot it back up, it wouldn't load past the startup sound, wherein it would appear to shut back down,or at the very least the screen would go black (my mouse has lights that stay on when the computer is on, and the light kept going on and off while the screen remained black). This was the case for at least a half hour until it suddenly booted itself back up all on its own. I had it on throughout the day, just browsing the internet and watching Youtube. It shut itself down twice during the day, and both times it restarted on its own right away after showing me a grey screen with the Apple logo and a progress bar. Now it just shut itself down again and it won't make it past the progress bar screen - if it even makes it that far, sometimes it shuts off right after it makes the startup sound. It keeps trying to boot up on its own over and over again, but it keeps shutting down right away. All the fixes I've searched for so far require a computer that actually boots up all the way so I don't think I could run any reports if I tried!
I'm running the latest version of Yosemite (10.10.2?).
Model number A1311
Not entirely sure what specs are useful to know so I'm just gonna write some of what's on the box it came in:
3.2 GHz Intel i3 processor, 4MBshared level 3 cache
4GB of 1333MHz DDR SDRAM
1TB serial ATA hard drive
ATI Radeon HD 5670 graphics processor with 512 MB of GDDR3 memory
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Try to boot into the Recover Partition by holding down the Command + R keys on startup. If it still won't boot then the HD has probably crashed. The is likely a AASP in your area, you can locate one by clicking AASP Locator, take it to one to be professional diagnosed. If it's only the HD, assuming you have been backing up, restoring to a new HD is pretty simple.

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Hi all,
I was planning to use bootcamp to install Windows 7 on my mid-2010 21.5" iMac.
Bootcamp recommended I usk disk utility to repair the drive. I had a snow leopard install disk in the drive, (I didn't realise Lion already had it's recovery tools built in to the hard drive.)
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Now, I can't seem to get my iMac to boot into recovery utilities or into safe mode because it doesn't connect to the wireless keyboard in time before it shuts down. So, if I use a wired keyboard (I have a dell USB keyboard that I can take from the office), will I be able to boot into safe mode?
Also, if the disk in drive is causing the problem, then I can't remove it because the wireless keyboard won't connect/register any keypresses.

Ok so, status report:
Wired keyboard is non responsive when I plug it in before/during boot. So i guess it needs to be plugged in before the iMac shut down. That's that out the window.
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To make matters worse, the wireless keyboard is no longer paired with the iMac, getting a green blinking light which indicates it wants to connect to a computer or device.
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The last couple of years I have worked with a 27 inch iMac in combination with a HP 27 inch monitor. This monitor is connected via a Mini Displayport to SVGA connector. Because I am going to use this external monitor anymore, I disconnected it today which made my iMac shut down imediately. Then it keeps rebooting and trying to start up but shuts down again. Over and over.
The problem stops as soon as I connect the monitor again.
Anybody have any thoughts?

Hello there, TheCapGuy.
The following Knowledge Base article is a great resource for steps in troubleshooting spontaneous restarts:
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem."
http://support.apple.com/kb/TS4636
Thanks for reaching out to Apple Support Communities.
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Hi ebeugs,
Thanks for visiting Apple Support Communities.
If your iMac shut down unexpectedly, and the fan is running unusually fast or loud, you may need to reset the System Management Controller.
I recommend following this troubleshooting method:
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
Press Command + Option + Escape to force quit any application that is not responding.
Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.
If the iMac unexpectedly shuts down again, or the fan continues running unusually fast or loud, follow these steps:
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
You can find these steps and more information about resetting the SMC here:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
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The vents on the bottom were completely clogged with compacted dust. It was so bad that I literally picked out chunks of dirt with a toothpick. I was able to clean the fans blades by spraying compressed air thought the top holes.
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On the link below is a little movie with the behavior
http://rapidshare.com/files/128832545/DSC00150.3GP.html
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Mac wont shut down, restart or sleep - corrupted software update?

My Mac Pro (2007 - OSX 10.6.7) will no longer shut down, restart or sleep. When I try to shut down, it logs me out of my user account, shows the light blue screen, momentarily shows the Leopard space background screen, before showing the blue screen again, and finally returning to the login screen prompting for my user/password.
The only way to poweroff from this point is to hold down the power switch until it forces a power down. This issue has been present for the last two weeks or so ever since I did a Software Update containing a security update. Initially it just failed to perform that update, although after a few days it did do the update, seemingly by fluke. After that, the problem persisted and now there is a new update (Fonts) which again fails to update.
I have tried all of the following:
Power off Mac, unplug power and leave for a few seconds
Power on Mac holding down Ctr + Opt + R + P (resetting PRAM etc)
Boot up from install CD and perform Disk repair (it did find problems with the disk and repaired them)
Check and repair permissions
Delete Software Update related plists & caches from ~/Library and /Library
Still the problem persists. Examining the logs shows me this:
04/05/2011 00:24:50          com.apple.WindowServer[11503]          Wed May 4 00:24:50 macpro.local WindowServer[11503] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
04/05/2011 00:25:00          com.apple.launchd[1]          ([0x0-0x226226].com.apple.SoftwareUpdate[11517]) Job appears to have crashed: Segmentation fault
04/05/2011 00:25:00          com.apple.ScreenSharing.server[11508]          Wed May 4 00:25:00 macpro.local AppleVNCServer[11508] <Warning>: CGSShutdownServerConnections: Detaching application from window server
04/05/2011 00:25:00          com.apple.ScreenSharing.server[11508]          Wed May 4 00:25:00 macpro.local AppleVNCServer[11508] <Warning>: CGSDisplayServerShutdown: Detaching display subsystem from window server
04/05/2011 00:25:00          com.apple.UserEventAgent-LoginWindow[11507]          Wed May 4 00:25:00 macpro.local UserEventAgent[11507] <Warning>: CGSShutdownServerConnections: Detaching application from window server
04/05/2011 00:25:00          com.apple.UserEventAgent-LoginWindow[11507]          Wed May 4 00:25:00 macpro.local UserEventAgent[11507] <Warning>: CGSDisplayServerShutdown: Detaching display subsystem from window server
04/05/2011 00:25:00          com.apple.ReportCrash.Root[11518]          2011-05-04 00:25:00.895 ReportCrash[11518:2703] Saved crash report for Software Update[11517] version ??? (???) to /Library/Logs/DiagnosticReports/Software Update_2011-05-04-002500_localhost.crash
04/05/2011 00:25:02          com.apple.WindowServer[11520]          Wed May 4 00:25:02 macpro.local WindowServer[11520] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
I can paste the crash report referred to in the logs if that would be helpful but for now will leave it out as it's huge and largely full of gobledygook.
I'm at my wits end now. I've always been very proud that in ~4 years of Mac ownership I've never had to reinstall OSX - something I used to do on an anual basis with Windows. My next step probably is a full reinstall, but I really do consider it a drastic step and a last resort.
Here's hoping that the Mac Support Community can help me out
Thanks in advance.

As a followup, upon the advice from someone else I created another user account (non admin) and logged in as that user. From that account I could successfully power down.
I'm still convinced the issue is related to Software Update as examining the logs showed none of the Software Update related entries as above:
04/05/2011 09:56:40          com.apple.WindowServer[760]          Wed May 4 09:56:40 macpro.local WindowServer[760] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
04/05/2011 09:56:44          com.apple.coreservicesd[87]          ThrottleProcessIO: throttling disk i/o
04/05/2011 09:56:50          com.apple.loginwindow[759]          2011-05-04 09:56:50.297 migCacheCleanup[781:903] Flushing Cache Locations...
04/05/2011 09:57:12          com.apple.WindowServer[840]          Wed May 4 09:57:12 macpro.local WindowServer[840] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.

IMac shuts down when using Safari 2.0.4

My iMac shuts down when I visit certain websites such as Pogo or video sites. Took it to the Apple store and of course the problem wouldn't replicate there. They kept it to check out the scripts and logs to see if they could find a problem - without success; although they did suggest my house is haunted. Brought it home and it quit again.
We thought perhaps we were getting interference from other wireless devices and unplugged our cordless phone which worked for a day. The computer always turns back on so its more of an annoyance than a real problem, but I'm baffled.
It also happened once when I was downloading from the iTunes store, but is most prevalent with Safari.
We have wireless internet connected via ethernet to an Airport Express.
Any ideas? Thanks.
iMac G5 Mac OS X (10.4.10)

Hi Barry -
Yes I do live near a ghost town (kinda) - Virginia City, NV. And I did tell any unwanted visitors to leave.
Actually, in the last year, they have replaced the Super drive, power supply, inverter and logic board. The only reason I'm not thinking power issues is that it only happens when I'm in Safari or iTunes. I would use Firefox except I've got java issues with that. I can (and do) use the machine for other things all day long without problems. I can use Safari all day long as long as I'm not playing on Pogo or certain video sites. Maybe Pogo is haunted?
It also doesn't happen on my husband's iMac on the other side of the house. Is there something that could cause enough interference to actually make the machine shut down? Oh, the antennae for the satellite TV and internet are on the roof directly above me, if that would have anything to do with it.
Thanks for your help.

I occasionally get an error that forces me to shut down/restart my computer. After restart, a message pops up stating that an error has occurred and a report will be sent to Apple. This hass been going on for several months, and Apple has never contacted

I occasionally get an error that forces me to shut down/restart my computer. After restart, a message pops up stating that an error has occurred and a report will be sent to Apple. This has been going on for several months, and Apple has never contacted me about this problem. Other than the forced shutdown/restart, I have had no problems with Garage Band.

I occasionally get an error that forces me to shut down/restart my computer. After restart, a message pops up stating that an error has occurred and a report will be sent to Apple. This has been going on for several months, and Apple has never contacted me about this problem. Other than the forced shutdown/restart, I have had no problems with Garage Band.

Printing duplex with HP Officejet Pro 8600 causes windows 7 OS to shut down/restart

Why when printing duplex with my HP Officejet Pro 8600 printer it causes windows 7( 64-bit) to shut down/restart. Windows message is "Windows has recovered from an unexpected shutdown. I've ran HP Hardward Diag. Utility and Print and Scan Doctor which indicated everything is working properly with the printer. Ocassionaly I can print duplex without windows shutting down and restarting, but most of the time it creates issue with Windows causing it to stop and restart. Single sided printing seems to be fine. I've already oncehad windows to "Startup Repair" in which ccase I selected restore to a previous working point. Everything worked for awhile then a duplex printing session starting causing windows to shut down again. THanks for your assistance.

Yes, the updated USB 3.0 driver corrects the issue and should be installed.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
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First Gen G5 iMac: Shuts Down In Just Seconds

My first generation G5 iMac shuts down within about 30 seconds to several minutes upon boot up. I had it off for about 3 or 4 days days while away, prior to this it worked fine. I purchased it in November of 2004.
OS 10.4.8
I have it connected to an APC UPS, there was a lengthy power failure while I was away, but the iMac was off; it is connected to the UPS via USB cable, i've disconnected all unnecessary connections, opened up the iMac and blew dust out of it, but it still shuts down shortly after boot up.
Any suggestions would be appreciated.
Thanks!
1.8 GHZ 20 G5 iMac (Rev A) 1GB RAM/250GB HD Mac OS X (10.4.6)

Thanks all, and to Barry & MGW:
It looks as if my iMac is within the serial no. range of a recall for power supplies. My wife is taking the iMac to an Apple store today, she called Apple earlier this morning and got an appointment, also we have the AppleCare plan and are still covered. I will post again after the Apple Store visit with an update.
I use SuperDuper! It's a great program, unfortunately my last back-up is several weeks old (shame on me) and now the iMac won't stay on long enough to make a fresh backup.
Hopefully, a new power supply will fix things up and the HD will be untouched.

Yosemite iMac shut down restart

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