IMac suddenly sounds alarm.

My iMac 21" (model 11.2/ 3.6GHz/ IntelCore i5/ system: 10.6.8) suddenly sounds off a loud alarm from standby/sleep mode.
I have searched the net and the alarm sounds like a RAM integrety-test alarm: 3 beeps and a 5 sec. pause etc.) The computer shuts down, but I can restart without any problems.
I have run a hardware-test from my dvd to check the RAM, but no error was found. (I ran both the normal and the advanced test)
The computer is still under the warranty period, but I was told that it does not cover for software errors
Does anybody have an idea as to what this could mean and how I should proceed?
Any help is grately appreciated :·)
++mikado2

This just happened today at my wifes office with her 21inch Imac i5. One of the girls was working and then all of the sudden the alarm as you describe it started. And starts back up upon a reboot as well?
Could this be a hardware / fan failure?

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Thanks very much for all your help!
Although there is one little thing that I've noticed. The iMac works properly, but I tried to software update to see if that may help my Minecraft sound issue (as I still don't think only having 2GB instead of 4GB would cause such a problem) but the software update application won't work. Running the "Software Update" from the apple menu on the toolbar gains no response, nothing happens. If I run the software update from system preferences, the application icon appears for a second, then disappears (as in the blank app. icon, the blank canvas with the pencil, pen and ruler in the bottom right corner). It does this every time I try to run it. It did work when the computer was crashing, but this started when on one of the occasions I ran the app. while it was crashing. Since this occured during the crashes, and still occurs now, I'm wondering did something simlar happen minecraft, as it's sound disappeared during the crashes and is still gone now.
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My iMac suddenly runs very slowly

My iMac began running extremely slow suddenly. I have a photography and design company that I rely on the speediness of my machine. I ran an EtreCheck. Can someone decipher what may be causing this?
Problem description:
iMac suddenly running slow
EtreCheck version: 2.1.2 (105)
Report generated December 10, 2014 at 8:34:27 PM CST
Hardware Information: ℹ️
iMac (21.5-inch, Late 2013) (Verified)
iMac - model: iMac14,3
1 2.9 GHz Intel Core i5 CPU: 4-core
8 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
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 750M - VRAM: 1024 MB
iMac 1920 x 1080
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 1:9:3
Disk Information: ℹ️
APPLE HDD ST1000LM024 disk0 : (1 TB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 999.35 GB (629.51 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ℹ️
Seagate Expansion Desk 3 TB
S.M.A.R.T. Status: Verified
EFI (disk1s1) <not mounted> : 315 MB
Seagate Expansion Drive (disk1s2) /Volumes/Seagate Expansion Drive : 3.00 TB (1.82 TB free)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. FaceTime HD Camera (Built-in)
Western Digital My Passport 0730 500.07 GB
S.M.A.R.T. Status: Verified
disk2s1 (disk2s1) <not mounted> : 32 KB
New Bloom External HD (disk2s3) /Volumes/New Bloom External HD : 499.94 GB (33.48 GB free)
H850S 81
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Anywhere
Kernel Extensions: ℹ️
/System/Library/Extensions
[loaded] com.logmein.driver.LogMeInSoundDriver (4.1.46f67) [Support]
[loaded] com.seagate.driver.PowSecDriverCore (5.2.6 - SDK 10.4) [Support]
/System/Library/Extensions/Seagate Storage Driver.kext/Contents/PlugIns
[not loaded] com.seagate.driver.PowSecLeafDriver_10_4 (5.2.6 - SDK 10.4) [Support]
[loaded] com.seagate.driver.PowSecLeafDriver_10_5 (5.2.6 - SDK 10.5) [Support]
[not loaded] com.seagate.driver.SeagateDriveIcons (5.2.6 - SDK 10.4) [Support]
Problem System Launch Agents: ℹ️
[failed] com.apple.CallHistoryPluginHelper.plist
[failed] com.apple.CallHistorySyncHelper.plist
[failed] com.apple.cmfsyncagent.plist [Details]
[failed] com.apple.coreservices.appleid.authentication.plist [Details]
[failed] com.apple.recentsd.plist [Details]
[failed] com.apple.security.cloudkeychainproxy.plist [Details]
[failed] com.apple.spindump_agent.plist [Details]
[failed] com.apple.telephonyutilities.callservicesd.plist [Details]
Problem System Launch Daemons: ℹ️
[failed] com.apple.ctkd.plist [Details]
[failed] com.apple.icloud.findmydeviced.plist [Details]
[failed] com.apple.ifdreader.plist
[failed] com.apple.nehelper.plist [Details]
[failed] com.apple.softwareupdated.plist [Details]
[failed] com.apple.wdhelper.plist [Details]
[running] com.seagate.TBDecorator.plist [Support]
[failed] org.cups.cupsd.plist [Details]
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist [Support]
[running] com.adobe.AdobeCreativeCloud.plist [Support]
[running] com.logmein.logmeingui.plist [Support]
[running] com.logmein.logmeinguiagent.plist [Support]
[not loaded] com.logmein.logmeinguiagentatlogin.plist [Support]
[loaded] com.oracle.java.Java-Updater.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[running] com.logmein.logmeinserver.plist [Support]
[loaded] com.oracle.java.Helper-Tool.plist [Support]
[loaded] com.oracle.java.JavaUpdateHelper.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist [Support]
[loaded] com.adobe.ARM.[...].plist [Support]
[running] com.seagate.dashboard.plist [Support]
User Login Items: ℹ️
None
Internet Plug-ins: ℹ️
AdobeAAMDetect: Version: AdobeAAMDetect 2.0.0.0 - SDK 10.7 [Support]
FlashPlayer-10.6: Version: 15.0.0.246 - SDK 10.6 [Support]
Default Browser: Version: 600 - SDK 10.10
AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 [Support]
AdobePDFViewer: Version: 11.0.09 - SDK 10.6 [Support]
Flash Player: Version: 15.0.0.246 - SDK 10.6 Mismatch! Adobe recommends 16.0.0.235
QuickTime Plugin: Version: 7.7.3
Silverlight: Version: 5.1.30317.0 - SDK 10.6 [Support]
JavaAppletPlugin: Version: Java 7 Update 71 Check version
3rd Party Preference Panes: ℹ️
Flash Player [Support]
Java [Support]
Seagate Dashboard for Mac OSX [Support]
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 999.35 GB Disk used: 369.83 GB
Destinations:
Seagate Expansion Drive [Local]
Total size: 3.00 TB
Total number of backups: 76
Oldest backup: 2014-04-19 01:52:26 +0000
Last backup: 2014-12-11 01:17:13 +0000
Size of backup disk: Excellent
Backup size 3.00 TB > (Disk size 999.35 GB X 3)
Top Processes by CPU: ℹ️
      22% Seagate Dashboard 3.0
      4% WindowServer
      3% com.apple.WebKit.Networking
      2% Adobe Photoshop Lightroom 5
      1% Safari
Top Processes by Memory: ℹ️
893 MB Seagate Dashboard 3.0
429 MB Adobe Photoshop Lightroom 5
352 MB Adobe Bridge CC
215 MB Adobe Photoshop CC 2014
180 MB com.apple.WebKit.WebContent
Virtual Memory Information: ℹ️
145 MB Free RAM
1.80 GB Active RAM
1.48 GB Inactive RAM
1.06 GB Wired RAM
4.39 GB Page-ins
103 MB Page-outs
Diagnostics Information: ℹ️
Dec 10, 2014, 07:26:03 PM Self test - passed
Dec 10, 2014, 08:12:43 PM Adobe Photoshop CC 2014_2014-12-10-201243_Ashleas-iMac.cpu_resource.diag [Details]
Dec 7, 2014, 11:21:39 PM Adobe Photoshop Lightroom 5_2014-12-07-232139_Ashleas-iMac.cpu_resource.diag [Details]

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of the script have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts SerialATA 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports ' com.clark.\* \*dropbox \*genieo\* \*GoogleDr\* \*k.AutoCAD\* \*k.Maya\* vidinst\* ' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 "` route -n get default|awk '/e:/{print $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB ' com.adobe.AAM.Updater-1.0 com.adobe.AAM.Updater-1.0 com.adobe.AdobeCreativeCloud com.adobe.CS4ServiceManager com.adobe.CS5ServiceManager com.adobe.fpsaud com.adobe.SwitchBoard com.adobe.SwitchBoard com.apple.aelwriter com.apple.AirPortBaseStationAgent com.apple.FolderActions.enabled com.apple.installer.osmessagetracing com.apple.mrt.uiagent com.apple.ReportCrash.Self com.apple.rpmuxd com.apple.SafariNotificationAgent com.apple.usbmuxd com.citrixonline.GoToMeeting.G2MUpdate com.google.keystone.agent com.google.keystone.daemon com.microsoft.office.licensing.helper com.oracle.java.Helper-Tool com.oracle.java.JavaUpdateHelper com.oracle.java.JavaUpdateHelper org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.startx ' ' 879294308 4071182229 461455494 3627668074 1083382502 1274181950 1855907737 2758863019 1848501757 464843899 3694147963 1233118628 2456546649 2806998573 2778718105 2636415542 842973933 2051385900 3301885676 891055588 998894468 695903914 1443423563 4136085286 523110921 2883943871 3873345487 ' 51 5120 files );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^$[0-9]+$ /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=('\n%s: %s\n' '\n%s\n\n%s\n' '\nRAM details\n%s\n' %s\ %s '%s\n-\t%s\n' );S0() { echo ' { q=$NF+0;$NF="";u=$(NF-1);$(NF-1)="";gsub(/^ +| +$/,"");if(q>='${p[$1]}') printf("%s (UID %s) is using %s '${p[$2]}'",$0,u,q);} ';};s=(' 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$(NF-1)=$1;$NF=int($NF/10000000);for(i=1;i<=3;i++){$i="";$(NF-1-i)="";};};'"`S0 19 20`" 's:^:/:p' '/\.kext\/(Contents\/)?Info\.plist$/p' 's/^.{52}(.+) <.+/\1/p' ' /Launch[AD].+\.plist$/ { n++;print;} END { if(n<200) print "/System/";} ' '/\.xpc\/(Contents\/)?Info\.plist$/p' ' NR>1&&!/0x|\.[0-9]+$|com\.apple\.launchctl\.(Aqua|Background|System)$/ { print $3;} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:[^:]+//p ' '/^root$/p' ' !/\/Contents\/.+\/Contents|Applic|Autom|Frameworks/&&/Lib.+\/Info.plist$/ { n++;print;} END { if(n<1100) print "/System/";} ' '/^\/usr\/lib\/.+dylib$/p' ' /Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".(/private)?","");n++;print;} END { split("'"${p[41]}"'",b);split("'"${p[42]}"'",c);for(i in b) print b[i]".plist\t"c[i];if(n<500) print "Launch";} ' ' /\/(Contents\/.+\/Contents|Frameworks)\/|\.wdgt\/.+\.([bw]|plu)/d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| |\n","\\|\\|kMDItem'${p[35]}'=");sub("^...."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[43]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/{next};/%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, "int($6/1024)" out";} END { if(a) print "CPU: "a;if(b) print "I/O: "b;if(c) print "Net: "c" (KiB/s)";if(d) print "Net errors: "d" packets/s";} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' $1~"lR"&&$2<='${p[25]}';$1~"li"&&$3!~"wpa2";' ' BEGIN { FS=":";p="uniq -c|sed -E '"'s/ +\$[0-9]+\$\$.+\$/\\\2 x\\\1/;s/x1$//'"'";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1|p;b=b$1;} END { close(p);if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 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$2} ' ' /^ *$/d;s/^ */   /;' ' s/^.+ |\(.+$$//g;p ' '/\.(appex|pluginkit)\/Contents\/Info\.plist$/p' ' /2/{print "WARN"};/4/{print "CRITICAL"};' ' /EVHF|MACR|^s/d;s/^.+: //p;' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps crontab iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl smcDiagnose sysctl\ -n defaults\ read stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' pluginkit scutil dtrace profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${c1[14]}"' :CFBundleDisplayName" {} \;|sort|uniq' '~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' :${p[35]}\" :Label\" '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$(RefProc): \$Message' -k Sender Req 'fsev|kern|launchd' -k RefProc Rne 'Aq|WebK' -k Message Rne 'Goog|ksadm|probe|Roame|SMC:|smcD|sserti|suhel| VALI|ver-r|xpma' -k Message Req 'abn|bad |Beac|caug|corru|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|NVDA$|pagin|pci pa|proc: t|Roamed|rror|SL|TCON|Throttli|tim(ed? ?|ing )o|WARN' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '/S*/*/Ca*/*xpc* >&- ||echo No' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,Ex}* {/,}L*/{A*d,Ca*/*/Ex,Co{mpon,reM},Ex,In{p,ter},iTu*/*P,Keyb,Mail/B,Pr*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -path \\*s/Resources -prune -o -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" -m 'L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.???????|wc -l' kern.memorystatus_vm_pressure_level '3>&1 >&- 2>&3' " -F '\$Time \$Message' -k Sender kernel -k Message CSeq 'n Cause: -' " );N1=${#c2[@]};for j in {0..9};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents XPC\ cache Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching SATA Descriptors App\ extensions Lockfiles Memory\ pressure SMC Shutdowns );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};A'$((7+i))'() { v=` eval sudo "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};';done;A9(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "${s[63]}"<<<"$v"`&&C1 1 $1;};for i in 1 2 7 8;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 50;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;B1&&D73 19 53 67 55;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 54 12 56;D23 5 14 12 14;D22 6 36 13 15;D22 20 52 66 54;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D82 35 49 61 51;D82 11 17 17 20;for i in 0 1;do D82 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A8 18 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;B3 4 0 65;A3 14 6 32 0;B4 0 16 11;A1 26 50 64;B7 16;C3 52;D13 24 24 32 31;D13 25 37 32 33;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D73 21 0 32 19;D73 10 42 32 40;D82 29 35 46 39;};D23 14 1 62 42;D12 34 43 53 44;D12 22 20 32 25;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 21 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D83 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 10 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 21 48 49 49;B3 4 22 57;A1 21 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D12 4 51 32 53;D23 22 9 37 7;A9;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report what happened. No harm will be done.
12. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

Sudden sound loss

Hi. I am experiencing very sudden sound problems: no sound while playing MPG's in Quicktime (every other format is fine), or while watching Flash videos in any browser (ie YouTube, etc). I've un/re-installed Quicktime to no avail.
This problem was definitely not happening just a short time ago...not sure what might have happened. Any ideas are greatly appreciated. Thanks!
G5 iMac (iSight) Mac OS X (10.4.7)

If repairing permissions and/or restarting didn't work, then try the following:
KB article - No sound from some applications, but system alert sounds play (Mac OS X 10.3, 10.4)
Another trick: If you have GarageBand installed, open it and then quit.
Good luck!

IMac suddenly chimes, and reboots itself repeatedly

can anyone help? My early 2008 iMac suddenly reboots itself, chimes, but then screen does not come on. I can hear the disk spinning, but no video, and the mouse and keyboard dont have any effect.
Afetr a while, it suddenly responds to the power button, and then reboots itself randomly. Been happening randomly now for long, and its driving me crazy!!
Any idears anyone please.....??

Try using Apple Hardware Test on your iMac it sounds like a video or RAM problem.

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago.`

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I tried unplugging the cord that connects the HD to the iMac and plugging it back in, but I still get "The disk you inserted was not readable by this computer" below which are buttons for Initialize, Ignore and Eject. I was using a cord that went from larger square plug to larger square plug. So then I tried one that went from smaller square plug to what I think is USB (thin rectangular plug) of the sort that connects the keyboard and mouse. It's the type that my printers and scanners use to connect to the iMac. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago. What else can I try before just trying to initialize and

Thanks, Michael! I do hear it at times spooling up and running. Just after I bumped the thread I looked for troubleshooting for this drive online and found the manual which suggested using Disk Utility which I've seen before accidentally (if I hit Command Shift U instead of Shift U to type "Unit" on a new folder for a student's homework ) but had never really noticed. Disk Utility does see it and also a sub-something (directory?) which might be the Time Machine archives on the disk, called disk1s2), sort of the way that my iMac's hard drive shows up as 640.14 GB Nitachi HDT7... and has a sub-something titled DB iMac, which is what I named my iMac's hard drive.
Anyway the owner's manual just shows the image under the formatting section, not the troubleshooting section, but as soon as I saw it in the manual I remembered seeing it accidentally a few times, went to it, and am now verifying the disk. Right now it's telling me that it will take 2 hours to complete the verification, so I guess I have a bigt of a wait. :-)
Does that fact that Disk Utilities can see it mean it's not failed, or just that it hasn't completely failed?
I can see the virtue in having multiple redundant backups, or at least two backups. What do you suggest? Two external hard drives? I had this one linked by ethernet, and but I also have a cord that could link it by USB (like a printer), so if this one is reparable I could get a second one and link it by USB. If this one is not reparable I could get two and do the same thing. I do have an Airport so I suppose it's possible to get some sort of Wi-Fi hard drive (my new printer/scanner uses only the network and not a cable, although it has a cable that I used for the initial installation), but I'd suspect a Wi-Fi hard drive might have a higher price.
What hard drives, if any, do you recommend? I seem to recall that when I was looking at external hard drives 4 years ago, Apple's were substantially more expensive, which is why I got the OWC Mercury Elite All Pro.

IMac suddenly can't connect to wireless!

My iMac suddenly refuses to connect to wireless! It worked fine before.
Tried everything including resetting the wireless router.
It always said that my password is invalid... My password is correct!
Can anybody help me? Thanks!

I'm having the same problem. I have a time machine that I use for my wireless router. I connect wirelessly using my Macbook Air. It has worked fine for months. Today, about 4 hours ago, my wireless connection stopped working. When I connect via ethernet directly, it works. I know it's not my router, because I also tried a spare Airport Express and that doesn't work either. I'm going to try restoring the time machine to its factory settings and configure it from scratch to see if that works. I'll post back with the results.

My imac has sound but no picture?

My IMac has sound but no picture? I've tried everything but a hard restart. Anyone else know a solution? Oh by the way, my eight your old son was the last to use it but swears he didn't press anything.

This is the Mac Pro desktop forum. I requested your post be moved to the iMac forum.

When i turn on my iMac its sounds like a light bulb struguling

When i turn on my iMac its sounds like a light bulb struguling

Not sure what a struggling light bulb sounds like. It is very hard to describe sounds sometimes. Is it an electrical buzzing or crackling sound? Does the computer still startup normally after the sound? You have Lion so I wonder if it is a new iMac. If so, call AppleCare.

IMac sudden crash

Hello all.
My iMac suddenly crashes and then fails to restart. Only after some time, ten to twenty minutes usually, can I manually restart the computer.
I have yet to identify any trends in usage before the crash.
All other devices connected to the same surge protector work fine, and fail to have this issue.
Any answers or suggestions out there????
Thanks!

I have the exact same problem with my 1-year-old intel iMac. It is very frustrating. The computer is effectively non-functional. I have brought it back to the store 6 times. It has had 4 repairs and the problem persists. They cannot seem to figure it out. The last time I brought it in they could not "reproduce" the problem. They replaced my fans motor, so it likely has nothing to do with temperature. We also not the only ones having this problem. There are several non-apple posts discussing this issue. Unfortunately, I think Apple has a serious defect problem with this model and are unwilling to take responsibility for it. They would rather lose a certain percentage of their customer base than provide replacement computers. I plan to take my iMac in next week and will continue to post progress, or lack of it, on this issue.

My imac suddenly shuts down while on line.

My imac suddenly shuts down while on line. It has to be unpluged for a couple of hours before it will restart. Could it be the battery dying? Any other sugestions?

Which iMac..? Go to > How to identify iMac models
1. Reset the SMC > Intel-based Macs: Resetting the System Management Controller (SMC)
2. Reset the PRAM and NVRAM > Resetting your Mac's PRAM and NVRAM
Then test it for a time and report back.
You also might want to give the Extended Apple Hardware Test a run, as per > Intel-based Macs: Using Apple Hardware Test to see if it turns up a hardware problem.

My iMac suddenly started running slow. almost every action invokes the color wheel

my imac suddenly started acting very choppy. streaming internet music works normal. every action requires a delayed response. sometimes 30 sec before it starts the command. i have not downloaded any programs in months. my imac is running OS x 10.8.2 with 4GB ram.my HDD has 65Gb free space. ext HDD has 248GB free space. i do not use any virus programs.

Hello, see how many of these you can answer...
See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...
http://support.apple.com/kb/PH7029
Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?
Open Console in Utilities & see if there are any clues or repeating messages when this happens.
In the Memory tab of Activity Monitor, are there a lot of Pageouts?
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

My iMac suddenly restarted on its own, saying there was a problem.   When I saw that, I noticed iPhoto was "finding discrepancies and is now rebuilding my entire library."   Ideas?

Using
Mac (21.5-inch Late 2009), OS X Mavericks (10.9)
My iMac suddenly restarted on its own, saying there was a problem.   When I saw that, I noticed iPhoto was "finding discrepancies and is now rebuilding my entire library."     Am currently repairing permissions and running Intego virus scan.   Ideas?    Thanks...Ralph

Thanks Kirk and Thomas....I did appear to have a kernel panic.   The contents of the panic are shown below.   I used disc permissions repair on the internal and external drives and all seem to be ok.     iPhoto is completely rebuilt and all is well there.    I use Time Machine and a dedicated hard drive for its contents.   Been using Macs since my original computer....a brand new Mac II.....this is a new experience.   Here's the info displayed on the panic.   Thanks a bunch...Ralph
Anonymous UUID:       9B916146-180D-BE8C-5A9D-ABC23CCA6DBF
Fri Feb 13 20:04:49 2015
panic(cpu 2 caller 0xffffff800b65518d): "a freed zone element has been modified: expected 0xdb989fca874ef542 but found 0xffffff800bc73bb0, bits changed 0x2467604a8c89cef2, at offset 0 of 256 in zone: kalloc.256"@/SourceCache/xnu/xnu-2422.115.10/osfmk/kern/zalloc.c:461
Backtrace (CPU 2), Frame : Return Address
0xffffff8017f6b390 : 0xffffff800b623139
0xffffff8017f6b410 : 0xffffff800b65518d
0xffffff8017f6b450 : 0xffffff800b65296f
0xffffff8017f6b4b0 : 0xffffff800b652249
0xffffff8017f6b5b0 : 0xffffff800b62abff
0xffffff8017f6b5e0 : 0xffffff800ba4f98d
0xffffff8017f6b610 : 0xffffff800babb287
0xffffff8017f6b660 : 0xffffff7f8bc85032
0xffffff8017f6b680 : 0xffffff7f8bc84309
0xffffff8017f6b6b0 : 0xffffff7f8bf9b7f5
0xffffff8017f6b730 : 0xffffff7f8bf9abf6
0xffffff8017f6b790 : 0xffffff7f8bbf3720
0xffffff8017f6b7e0 : 0xffffff7f8bbf5cef
0xffffff8017f6b840 : 0xffffff7f8bbfb4a7
0xffffff8017f6b900 : 0xffffff800b80e9ee
0xffffff8017f6b960 : 0xffffff800b7c636c
0xffffff8017f6ba60 : 0xffffff800b801566
0xffffff8017f6bab0 : 0xffffff800b7c8b06
0xffffff8017f6bb10 : 0xffffff800b972381
0xffffff8017f6bb60 : 0xffffff800b8015d6
0xffffff8017f6bbb0 : 0xffffff800b8086ac
0xffffff8017f6bca0 : 0xffffff800b804eb7
0xffffff8017f6bd40 : 0xffffff800b80788e
0xffffff8017f6bd90 : 0xffffff800b98481f
0xffffff8017f6bdc0 : 0xffffff800b978df0
0xffffff8017f6be70 : 0xffffff800b7fb8a6
0xffffff8017f6bea0 : 0xffffff800b7e5f13
0xffffff8017f6bed0 : 0xffffff800b7df24a
0xffffff8017f6bf40 : 0xffffff800b7e5eb7
0xffffff8017f6bf50 : 0xffffff800ba419f3
0xffffff8017f6bfb0 : 0xffffff800b6f4c86
      Kernel Extensions in backtrace:
         com.apple.iokit.IOStorageFamily(1.9)[9B09B065-7F11-3241-B194-B72E5C23548B]@0xff ffff7f8bbef000->0xffffff7f8bc13fff
         com.apple.iokit.IOSCSIArchitectureModelFamily(3.6.7)[9E10AF10-FA6C-3261-B939-5D 0BC025ED9E]@0xffffff7f8bc7f000->0xffffff7f8bca9fff
         com.apple.iokit.IOSCSIBlockCommandsDevice(3.6.7)[EF296673-2159-39B8-8A9C-4010FF BF952E]@0xffffff7f8bf9a000->0xffffff7f8bfaefff
            dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(3.6.7)[9E10AF10-FA6C-3261-B939-5D 0BC025ED9E]@0xffffff7f8bc7f000
            dependency: com.apple.iokit.IOStorageFamily(1.9)[9B09B065-7F11-3241-B194-B72E5C23548B]@0xff ffff7f8bbef000
BSD process name corresponding to current thread: launchd
Mac OS version:
13F34
Kernel version:
Darwin Kernel Version 13.4.0: Wed Dec 17 19:05:52 PST 2014; root:xnu-2422.115.10~1/RELEASE_X86_64
Kernel UUID: 45486BF2-BDDE-34CB-8C71-606FF3FE181B
Kernel slide:     0x000000000b400000
Kernel text base: 0xffffff800b600000
System model name: iMac14,1 (Mac-031B6874CF7F642A)
System uptime in nanoseconds: 155775824629548
last loaded kext at 48168719622545: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7f8d6f4000, size 20480)
last unloaded kext at 48228764926590: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7f8d6f4000, size 16384)
loaded kexts:
com.intego.virusbarrier.kext.realtime 217
com.intego.netbarrier.kext.network 177
com.intego.netbarrier.kext.process 177
com.intego.netbarrier.kext.monitor 177
com.apple.filesystems.smbfs 2.0.3
com.apple.iokit.IOBluetoothSerialManager 4.2.7f4
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AGPM 100.14.34
com.apple.driver.ApplePlatformEnabler 2.0.9d7
com.apple.driver.X86PlatformShim 1.0.0
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleHDA 2.6.3f4
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.AppleMikeyDriver 2.6.3f4
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleThunderboltIP 1.1.2
com.apple.driver.AppleMCCSControl 1.2.5
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.7f4
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.driver.AppleLPC 1.7.0
com.apple.driver.AppleIntelHD5000Graphics 8.2.8
com.apple.driver.AppleIntelFramebufferAzul 8.2.8
com.apple.iokit.SCSITaskUserClient 3.6.7
com.apple.driver.AppleUSBODD 3.4.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
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com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2
com.apple.driver.AirPort.Brcm4360 842.21.65
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System Profile:
Model: iMac14,1, BootROM IM141.0118.B01, 4 processors, Intel Core i5, 2.7 GHz, 8 GB, SMC 2.14f19
Graphics: Intel Iris Pro, Intel Iris Pro, Built-In
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (6.30.223.154.65)
Bluetooth: Version 4.2.7f4 15112, 3 services, 23 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE HDD HTS541010A9E662, 1 TB
USB Device: Hub
USB Device: Hub
USB Device: FaceTime HD Camera (Built-in)
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Keyboard Hub
USB Device: Apple Optical USB Mouse
USB Device: Apple Keyboard
USB Device: Hub
USB Device: Hub
USB Device: BUFFALO INC. USB-SATA Bridge
USB Device: BUFFALO INC. USB-SATA Bridge
USB Device: BUFFALO INC.USB-SATA Bridge
USB Device: Apple USB SuperDrive
Thunderbolt Bus: iMac, Apple Inc., 23.10

When talking suddenly sounds goes very slow and disappears

when talking suddenly sounds goes very slow and disappears then i use loud speaker it happens very often

when talking suddenly sounds goes very slow and disappears then i use loud speaker it happens very often

IMacs suddenly shuts down

Hi,
Since a while my iMac suddenly shuts down and reboots.
It starts with a frame freeze, can't move the mouse cursor. After a few seconds my iMac shuts down.
I have no idea what the problem can be.
This is the report of Console when it shuts down.

Hey MagicMarcus,
Thanks for the question. I understand that you are experiencing issues with your iMac unexpectedly shutting down or restarting. The following resource provides some great information if this happens, along with potential resolution steps if it is a reoccurring issue:
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem." - Apple Support
http://support.apple.com/en-us/HT200553
Thanks,
Matt M.

IMac suddenly sounds alarm.

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