Late 2007 Intel iMac getting stuck at boot...sometimes.

I'll go into as much detail here as I can, but feel free to ask questions. This is:
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.8 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B03
SMC Version (system): 1.21f4
I rarely shut this computer off, and for the most part it runs fine, but when I do shut it down or Restart, whether it boots again or not is a gamble. I have backups, so I'm not concerned about losing data, just concerned by the instability. There's no boot camp or strange partitioning. Just a single partition "Macintosh HD" that the system boots from.
Here are the tests I've run:
1) Built in hardware test. I've had it hang while "probing hardware",
but once I run the extended tests, it always passes.
2) Disk Utility. I've verified the disk and repaired it, occasionally
I get an error, but it's always been fixable, and the last test I ran
said the HD seemed to be okay. I've also repaired the permissions several
times. There are a couple of "Warning: SUID file 'bleh' has been modified and
will not be repaired." warnings.
3) Reset the SMC controller, by disconnecting all the cables including power
and letting it sit for 30 minutes -- several times.
4) Done the Command-Option-P-R reset several times.
5) S.M.A.R.T. indicates nothing wrong with the drive.
When things go bad, there are several ways it happens.
1) Sometimes I get the grey screen, no apple or wheel. Just sits at the grey
screen forever.
2) After a couple of reboots, I'll usually get to the apple logo and wheel, but it
stays there forever.
3) After 10 or 20 reboots, I can usually get it to go all the way through
and start up.
Sometimes when I can get it to boot from the Install DVD, the physical harddrive is listed in the Disk Utility but not the "Macintosh HD" partition, so I can't check or repair it.
I have thought that this might be heat related, maybe it works better as it heats up, but this doesn't explain the inability to just restart it when it's been running for a week.
What does this sound like to you? I have to admit that I'm stumped, and since I don't really have a good grasp on what's going on at each stage of the boot sequence, I can't narrow it down to one thing or another. I guess worst case I'll take it in to the "Geniuses" at the Apple Store, but I'd like to understand exactly what's going on here.
Any help would be....helpful.

I've had totally mixed luck with hard drives in the past. I had a drive fail on me after 1 month and another last for the last 10 years. I'm not upset, assuming it doesn't happen again in 2 years.
Personally, I think the heat inside the iMac makes it a little harder on the drive, which might accelerate it's life. Once it started to go I installed "iMac Fan Control" (just google it) to keep the heat down. No idea if it milked a little more life out of it or not, but I think I'll keep running it.
Ian

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My 2009 iMac gets stuck on the grey Apple logo when booting up. It boots correctly when in safe mode. I have tried erasing the HD and re-installing from a USB installer. It says the install is complete, but after restarting it gets stuck on the Apple log

My late 2009 27" iMac gets stuck on the grey Apple logo when booting up. It boots correctly when in safe mode. I have tried erasing the HD and re-installing from a USB installer. It says the install is complete, but after restarting it gets stuck on the Apple logo again. This could possibly be an HD failure, but then why does Safe Mode still work and the USB install not work? Any ideas?

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 merely by the seeming 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. All it does is to collect information about the state of the computer. That information goes nowhere unless you choose to share it. However, you should be cautious about running any kind of program (not just a shell script) at the behest of a stranger. If you have doubts, search this site for other discussions in which this procedure has been followed without any report of ill effects. If you can't satisfy yourself that the instructions are safe, don't follow them. Ask for other options.
Here's a summary of what you need to do, if you choose to proceed:
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☞ Paste into the window of another application.
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☞ 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.
4. 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.
5. 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.
6. 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.
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PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts 51 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports 'com.autodesk.AutoCad com.evenflow.dropbox com.google.GoogleDrive' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 ` route -n get default|awk '/e:/{print $2}' ` 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB );N5=${#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]}'",$0,u,q);} ';};s=(' /^ *$|CSConfigDot/d;s/^ */ /;s/[-0-9A-Fa-f]{22,}/UUID/g;s/(ochat)\.[^.]+(\..+)/\1\2/;/Shared/!s/\/Users\/[^/]+/~/g ' ' s/^ +//;5p;6p;8p;12p;' ' {sub(/^ +/,"")};NR==6;NR==13&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: [^EO]|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { if(n<200) print "com.apple.";} ' ' $3~/[0-9]:[0-9]{2}$/ { gsub(/:[0-9:a-f]{14}/,"");} { print|"tail -n'${p[12]}'";} ' ' NR==2&&$4<='${p[13]}' { print $4;} ' ' END { $2/=256;if($2>='${p[15]}') print int($2) } ' ' NR!=13{next};{sub(/[+-]$/,"",$NF)};'"`S0 21 22`" 'NR!=2{next}'"`S0 37 17`" ' NR!=5||$8!~/[RW]/{next};{ $(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$/ { n++;print;} END { if(n<1000) print "/System/";} ' '/^\/usr\/lib\/.+dylib$/p' ' /Temp|emac/d;/(etc|Preferences)\//s/^\.\/[^/]+//p;' ' /\/(Contents\/.+\/Contents|Frameworks)\/|\.wdgt\/.+\.([bw]|plu)/d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| ","||kMDItem'${p[35]}'=");sub("^.."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[9]}'{$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|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' $1~"lR"&&$2<='${p[25]}';$1~"li"&&$3!~"wpa2";' ' BEGIN { FS=":";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]" "$1;b=b$1;} END { if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 27 14`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n [N/A]";"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text$|POSIX sh.+ text ex)/) F=F" ("T")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n ...and %s more line(s)\n",l-L);} ' ' /^ +[NP].+ =/h;/^( +D.+[{]|[}])/{ g;s/.+= //p;};' ' /^ +B/{ s/.+= |(-[0-9]+)?\.s.+//g;p;} ' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / /{$0="'"${p[28]}"'"};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/$L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9;} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' 's/0/Off/p' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps sudo\ crontab sudo\ iotop top pkgutil PlistBuddy whoami cksum kextstat launchctl sudo\ launchctl crontab 'sudo defaults read' stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' defaults\ read scutil sudo\ dtrace sudo\ profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil sudo\ lsof test );c2=(com.apple.loginwindow\ LoginHook '-c Print /L*/P*/loginw*' '-c Print L*/P*/*loginit*' '-c Print L*/Saf*/*/E*.plist' '~ $TMPDIR.. \( -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' '-c Print\ :'${p[35]}' 2>&1' '-c Print\ :Label 2>&1|head -1' '{/,}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 \$Message' -k Sender kernel -k Message Req 'Beac|caug|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|n Cause: -|NVDA$|pagin|proc: t|Roamed|rror|ssert|Thrott|tim(ed? ?|ing )o|WARN' -k Message Rne 'Goog|ksadm|SMC:' -o -k Sender fseventsd -k Message Req 'SL' " '-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,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cgh] ! -name *ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '-L {/{S*/,},}L*/Lau* -type f' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Ca*/*/Ex,Compon,Ex,In,iTu,Keyb,Mail/B,P*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,pam.d,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' -i4TCP:0-1023 com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' );N1=${#c2[@]};for j in {0..8};do c2[N1+j]=SP${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 launchd 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 );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" ]];};';done;A7(){ 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(){ [[ "$v" ]]&&echo "$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "$s"<<<"$v"`&&C1 1 $1;};for i in 1 2;do for j in 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;A2 0 $((N1+1)) 2;C0;A1 0 $N1 1;C0;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;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;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 14 12 14;D22 6 36 13 15;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D22 11 17 17 20;for i in 0 1;do D22 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&&{ A2 19 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;A2 4 20 21;B7 6;B2 9;A4 14 7 52 9;B2 10;B6 9 10 4;C3 25;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;D13 24 24 32 31;D13 25 37 32 33;A1 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D13 21 0 32 19;D13 10 42 32 40;D22 29 35 46 39;};D23 14 1 48 42;D12 34 43 53 44;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 26 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&&D23 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 20 42 32 41;D13 14 2 48 43;D13 4 5 32 1;D22 4 4 50 0;D13 14 3 49 5;D12 26 48 59 49;B3 4 22 57;A1 26 46 56;B7 22;B3 0 0 58;C3 47;D23 22 9 37 7;A7;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
7. 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.
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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.
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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.

I replaced the screen on my late 2007 laptop, now it won't boot. It Bongs and the wheel turns and then it turns off. I have tried a tech tool pro 3 disk, no results tried the osX tiger disk no results but bong and wheel. any ideas?

I replaced the screen on my late 2007 laptop, now it won't boot. It Bongs and the wheel turns and then it turns off. I have tried a tech tool pro 3 disk, no results tried the osX tiger disk no results but bong and wheel. any ideas?
I have not tried disk warrior yet,but will. I had it stored until I could get screen, battery is dead, and to be honest I forgot which OS I have in it, If I can Get screen up maybe I can get my info.
sbckr

Hi there sbckr,
You may find the troubleshooting steps in the article below helpful.
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/ts1367
-Griff W.

IMAC gets stuck in sleep mode

Hi all!
Could somebody please advice me what is going on with my iMAC Intel Core i3. I have just installed new update for 10.6.8. iMAC gets stuck after sleep mode. Power on/off is only the way to get him alive.
I tried to 'google' this issue. Non of topics I found helped ;(
Please!!

You can try some basic troubleshooting:
First restart in Safe Mode this will clear some caches.
If that doesn't help then use Disk Utility (Applications - Utilities - Disk Utility) to Repair Disk Permissions
If that doesn't help then download and install the 10.6.8 Update Combo. Of course make sure you have a good backup before installing the Update Combo!

My 2007 intel imac ejects discs within 2 seconds

My 2007 intel imac ejects discs within 2 seconds. The last time I used my disc hardware was to install software for a new Cannon all in one. It worked perfectly. I have tried many discs including one movie made on this same machine. Pleease help me troubleshoot before I have to transport my computer to the Apple store. Thank you in advance.

It could be that the laser has dust on it; a laser cleaning disk is available at stores which specialize in audio and video- BestBuy, or OfficeDepot would be a place to start. Run a cleaning session to see how that plays out. It could be the optical drive itself. The best approach is first to try steps that do not involve transporting your iMac as you indicate.

HT201295 Late 2009 Intel iMac Needs Frequent SMC reset - constant high speed running fan

Late 2009 Intel iMac is having reoccurring episodes of high speed fan running, especially after waking it up. The SMC reset by unplug and reboot works, but I worry that this is a serious sign and that the machine is slowly dying. Any thoughts? Works fine otherwise.

wolfgang272 wrote:
Do you have any ideas?
Yes, you just need to reset the SMC and you should be fine
https://support.apple.com/kb/HT3964
Whoops you already did that.
Hardware Test then
https://support.apple.com/kb/ht1509
Read more info here
https://discussions.apple.com/message/16276201#16276201

2007 Intel Imac, installed a new Hdd. Started up with the install disc but it doesn't find my Hdd when asking for a destination volume to install the Mac OS. The Hdd is recognized in system profiler. Any ideas?

2007 Intel Imac, installed a new Hdd. Started up with the install disc but it doesn't find my Hdd when asking for a destination volume to install the Mac OS. The Hdd is recognized in system profiler. Any ideas?

Welcome to Apple Support Communities
The hard drive is not formatted, and it must be formatted in "Mac OS Extended (Journaled)" in order to install OS X.
Close the OS X installer, and go to Utilities menu (on the menu bar) > Disk Utility. Then, format your hard drive in "Mac OS Extended (Journaled)" as Format > http://pondini.org/OSX/DU1.html Finally, close Disk Utility and install OS X

My intel imac White screens when booting

My intel imac White screens when booting. I have completed; power off restart - comnd-option p-r
While off I held power button 30 sec power cycled holding the apple button.

Try to restart in Safe Mode and let us know what happens.
Roger

Macbook Pro, late 2007, OS 10.9.1, trouble booting up beeps with grey screen

Macbook Pro, late 2007, OS 10.9.1, trouble booting up beeps with grey screen

Beeps at startup are an indication that there is not enough working RAM DIMMs to start up.

2007 Intel iMac with sleep/wake issues

Subject: 2007 Intel iMac, 2GHz, 4GB RAM, 10.5.6
I'm having difficulty troubleshooting this one and would greatly appreciate any advice/help. Basically this iMac will develop all kinds of problems over night. It will be put to sleep in the evening and in the morning it will be off or it won't wake from sleep. I don't think it's a power issue, as other computers aren't affected.
If you manually turn it off and then on again, it won't recognize the startup volume. Usually at this point nothing will work except Diskwarrior will find and repair some errors and it will work again for the rest of the day, but come morning, the problems return.
I've replaced the memory, changed all peripherals, completely rebuilt the OS (clean install), even replaced the battery backup unit. I've reset the PRAM and the SMC, ran surface scans on the hard drive, as well as all available tests in Tech Tool and Rember. Nothing found. SMART status is clear.
It seems to only happen over night. If I put it to sleep mid-day, it'll wake just fine, although perhaps there's a difference between that short sleep and its nightly slumber which is the key??
I don't think there's a software issue because the person who uses it basically only uses Mail, Safari, Firefox, and occasionally iWork apps. I'll put the latest crash report in a follow-up post, but I don't quite understand its contents and I'm hoping it will provide a clue which someone can help me with.
Thanks for reading this far - I look forward to any responses!
Rey

Here's the latest crash report. It seems to have originated after sunday night's crash, which is why it shows 10.5.4, which was installed by combo update yesterday. Last night's crash doesn't seem to have a report...
Process: DirectoryService [31]
Path: /usr/sbin/DirectoryService
Identifier: DirectoryService
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: launchd [1]
D
ate/Time: 2009-04-06 14:57:34.297 -0600
OS Version: Mac OS X 10.5.4 (9E25)
Report Version: 6
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread: 1
Thread 0:
0 dyld 0x8fe12fd1 ImageLoaderMachO::doTermination(ImageLoader::LinkContext const&) + 241
1 dyld 0x8fe04f7b dyld::runTerminators(void*) + 155
2 libSystem.B.dylib 0x9592afdc _cxafinalize + 241
3 libSystem.B.dylib 0x9592aed0 exit + 33
4 DirectoryService 0x00015f3b main + 351
5 DirectoryService 0x00015dbe start + 54
Thread 1 Crashed:
0 libSystem.B.dylib 0x959e3dbe _semwait_signalnocancel + 10
1 libSystem.B.dylib 0x959d5c87 usleep$NOCANCEL$UNIX2003 + 61
2 libSystem.B.dylib 0x959f7434 __abort + 109
3 libSystem.B.dylib 0x959f7490 flockfile_debugstub + 0
4 DirectoryService 0x00088ad7 CCachePlugin::WaitForDNSQueries(int, sDNSLookup*, opaque_pthread_mutext*, opaque_pthread_condt*) + 417
5 DirectoryService 0x00088ea5 CCachePlugin::IssueParallelDNSQueries(sDNSLookup*) + 613
6 DirectoryService 0x00088ff7 CCachePlugin::InitiateDNSQuery(sDNSLookup*, bool) + 65
7 DirectoryService 0x00090934 CCachePlugin::DSgethostbyname_int(char*, char const*, char const*, int, bool, sDNSLookup*, int*) + 1276
8 DirectoryService 0x00092d92 CCachePlugin::DSgetaddrinfo(kvbuf_t*, int) + 3448
9 DirectoryService 0x00094700 CCachePlugin::ProcessLookupRequest(int, char*, int, int) + 614
10 DirectoryService 0x0002e859 libinfoDSmigdoQuery + 585
11 DirectoryService 0x0009921c _XQuery + 343
12 DirectoryService 0x00098f79 DSlibinfoMIG_server + 109
13 libSystem.B.dylib 0x95977ed3 machmsgserver + 343
14 DirectoryService 0x00022ca1 CMigHandlerThread::ThreadMain() + 303
15 ...ectoryServiceCore.Framework 0x00166f83 DSCThread::Run() + 39
16 ...ectoryServiceCore.Framework 0x0016718e DSLThread::_RunWrapper(void*) + 84
17 libSystem.B.dylib 0x959336f5 pthreadstart + 321
18 libSystem.B.dylib 0x959335b2 thread_start + 34
Thread 2:
0 libSystem.B.dylib 0x95932f66 kevent + 10
1 libSystem.B.dylib 0x959336f5 pthreadstart + 321
2 libSystem.B.dylib 0x959335b2 thread_start + 34
Thread 3:
0 libSystem.B.dylib 0x959451d5 syscall + 5
1 ...ectoryServiceCore.Framework 0x00166f83 DSCThread::Run() + 39
2 ...ectoryServiceCore.Framework 0x0016718e DSLThread::_RunWrapper(void*) + 84
3 libSystem.B.dylib 0x959336f5 pthreadstart + 321
4 libSystem.B.dylib 0x959335b2 thread_start + 34
Thread 4:
0 libSystem.B.dylib 0x959024a6 machmsgtrap + 10
1 libSystem.B.dylib 0x95909c9c mach_msg + 72
2 libSystem.B.dylib 0x9592d47c vm_allocate + 135
3 libSystem.B.dylib 0x9595fd7f machmsg_serveronce + 252
4 DirectoryService 0x00022c14 CMigHandlerThread::ThreadMain() + 162
5 ...ectoryServiceCore.Framework 0x00166f83 DSCThread::Run() + 39
6 ...ectoryServiceCore.Framework 0x0016718e DSLThread::_RunWrapper(void*) + 84
7 libSystem.B.dylib 0x959336f5 pthreadstart + 321
8 libSystem.B.dylib 0x959335b2 thread_start + 34
Thread 5:
0 libSystem.B.dylib 0x95932f66 kevent + 10
1 libresolv.9.dylib 0x90f0f9f8 pdnsquery + 96
2 libresolv.9.dylib 0x90f0fd8c sdnssearch + 770
3 libresolv.9.dylib 0x90f0ff26 sdnssearch + 1180
4 libresolv.9.dylib 0x90f14363 dnslookup_soamin + 215
5 DirectoryService 0x000ce728 idnadnslookup + 572
6 DirectoryService 0x0008856c DoDNSQuery(void*) + 214
7 libSystem.B.dylib 0x959336f5 pthreadstart + 321
8 libSystem.B.dylib 0x959335b2 thread_start + 34
Thread 1 crashed with X86 Thread State (32-bit):
eax: 0x0000003c ebx: 0x959e390f ecx: 0xb01015fc edx: 0x959e3dbe
edi: 0x00224b90 esi: 0xb0101658 ebp: 0xb0101638 esp: 0xb01015fc
ss: 0x0000001f efl: 0x00000247 eip: 0x959e3dbe cs: 0x00000007
ds: 0x0000001f es: 0x0000001f fs: 0x0000001f gs: 0x00000037
cr2: 0xa06b88bc
Binary Images:
0x1000 - 0x10efef +DirectoryService ??? (???) <215b796060460ede1cfd684790280582> /usr/sbin/DirectoryService
0x15f000 - 0x16dff3 com.apple.DirectoryServiceCore.Framework 3.5.4 (3.5.4) <bb75c970bee1da9e8b00a0a3ce2cae45> /System/Library/PrivateFrameworks/DirectoryServiceCore.framework/Versions/A/Dir ectoryServiceCore
0x8fe00000 - 0x8fe2da53 dyld 96.2 (???) <14ac3b684fa5a31932fa89c4bba7a29b> /usr/lib/dyld
0x90c14000 - 0x90c1bfe9 libgcc_s.1.dylib ??? (???) <f53c808e87d1184c0f9df63aef53ce0b> /usr/lib/libgcc_s.1.dylib
0x90c1c000 - 0x90cceffb libcrypto.0.9.7.dylib ??? (???) <330b0e48e67faffc8c22dfc069ca7a47> /usr/lib/libcrypto.0.9.7.dylib
0x90d0e000 - 0x90d90ff3 com.apple.CFNetwork 330.4 (330.4) <ce5b085df34a78b7f198aff9db5b52ec> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwo rk.framework/Versions/A/CFNetwork
0x90f0e000 - 0x90f2cfff libresolv.9.dylib ??? (???) <9602435a6eac87a0d1f41b8ca8541693> /usr/lib/libresolv.9.dylib
0x924cc000 - 0x92557fff com.apple.framework.IOKit 1.5.1 (???) <60cfc4b175c4ef60bb8e9036716a29f4> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x925cb000 - 0x92846fe7 com.apple.Foundation 6.5.5 (677.19) <bfd4ebea1a7739dd6b523f15dca01a37> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x93387000 - 0x933abfff libxslt.1.dylib ??? (???) <4933ddc7f6618743197aadc85b33b5ab> /usr/lib/libxslt.1.dylib
0x933ac000 - 0x933f0feb com.apple.DirectoryService.PasswordServerFramework 3.0.3 (3.0.3) <8135bb4f34a3bf02b8c2ca869fe33a42> /System/Library/PrivateFrameworks/PasswordServer.framework/Versions/A/PasswordS erver
0x93703000 - 0x937e4ff7 libxml2.2.dylib ??? (???) <1baef3d4972ee789d8fa6c1fa44da45c> /usr/lib/libxml2.2.dylib
0x93f5e000 - 0x93f62fff libmathCommon.A.dylib ??? (???) /usr/lib/system/libmathCommon.A.dylib
0x9469a000 - 0x94726ff7 com.apple.LaunchServices 289.2 (289.2) <3577886e3a6d56ee3949850c4fde76c9> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchS ervices.framework/Versions/A/LaunchServices
0x9472c000 - 0x9473bfff libsasl2.2.dylib ??? (???) <b9e1ca0b6612e280b6cbea6df0eec5f6> /usr/lib/libsasl2.2.dylib
0x94805000 - 0x9484bfef com.apple.Metadata 10.5.2 (398.18) <9466e348fc3c1fece377ae1238fe74a7> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata
0x94867000 - 0x94917fff edu.mit.Kerberos 6.0.12 (6.0.12) <1dc515ebe407292db8e603938c72d4e8> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos
0x94c4f000 - 0x94c65fff com.apple.DictionaryServices 1.0.0 (1.0.0) <ad0aa0252e3323d182e17f50defe56fc> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Diction aryServices.framework/Versions/A/DictionaryServices
0x94d81000 - 0x94db3fff com.apple.LDAPFramework 1.4.4 (108) <00542ef6515aeb41a22ce0004a75b519> /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
0x94e49000 - 0x95123ff3 com.apple.CoreServices.CarbonCore 786.4 (786.4) <059c4803a7a95e3c1a95a332baeb1edf> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore
0x95458000 - 0x954d7ff5 com.apple.SearchKit 1.2.0 (1.2.0) <277b460da86bc222785159fe77e2e2ed> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit
0x95510000 - 0x95510ffa com.apple.CoreServices 32 (32) <2fcc8f3bd5bbfc000b476cad8e6a3dd2> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x95883000 - 0x9588bfff com.apple.DiskArbitration 2.2.1 (2.2.1) <75b0c8d8940a8a27816961dddcac8e0f> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
0x9588c000 - 0x958e9ffb libstdc++.6.dylib ??? (???) <04b812dcec670daa8b7d2852ab14be60> /usr/lib/libstdc++.6.dylib
0x95901000 - 0x95a61ff3 libSystem.B.dylib ??? (???) <98fc91f31f185411ddc46d3225e9af55> /usr/lib/libSystem.B.dylib
0x95b7f000 - 0x95c06ff7 libsqlite3.0.dylib ??? (???) <6978bbcca4277d6ae9f042beff643f7d> /usr/lib/libsqlite3.0.dylib
0x95c58000 - 0x95c87fe3 com.apple.AE 402.2 (402.2) <e01596187e91af5d48653920017b8c8e> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.fram ework/Versions/A/AE
0x95c88000 - 0x95e56fff com.apple.security 5.0.4 (34102) <f01d6cbd6a0f24f6c13952ed448e77d6> /System/Library/Frameworks/Security.framework/Versions/A/Security
0x95e57000 - 0x95f36fff libobjc.A.dylib ??? (???) <a53206274b6c2d42691f677863f379ae> /usr/lib/libobjc.A.dylib
0x96018000 - 0x960d2fe3 com.apple.CoreServices.OSServices 226.5 (226.5) <7e10d25c615a39fe1ab4d48e24a3b555> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices
0x960d3000 - 0x960f7feb libssl.0.9.7.dylib ??? (???) <acee7fc534674498dcac211318aa23e8> /usr/lib/libssl.0.9.7.dylib
0x964d9000 - 0x96510fff com.apple.SystemConfiguration 1.9.2 (1.9.2) <8b26ebf26a009a098484f1ed01ec499c> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration
0x9663b000 - 0x96642ffe libbsm.dylib ??? (???) <d25c63378a5029648ffd4b4669be31bf> /usr/lib/libbsm.dylib
0x96643000 - 0x9677bff7 libicucore.A.dylib ??? (???) <5031226ea28b371d8dfdbb32acfb48b5> /usr/lib/libicucore.A.dylib
0x9677c000 - 0x9678affd libz.1.dylib ??? (???) <5ddd8539ae2ebfd8e7cc1c57525385c7> /usr/lib/libz.1.dylib
0x9704e000 - 0x97180fff com.apple.CoreFoundation 6.5.3 (476.14) <7ef7f5db09ff6dd0135a6165872803cc> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x971c1000 - 0x971ecfe7 libauto.dylib ??? (???) <42d8422dc23a18071869fdf7b5d8fab5> /usr/lib/libauto.dylib
0xfffe8000 - 0xfffebfff libobjc.A.dylib ??? (???) /usr/lib/libobjc.A.dylib
0xffff0000 - 0xffff1780 libSystem.B.dylib ??? (???) /usr/lib/libSystem.B.dylib

Does the warranty count if my ipod touch get stuck on facebook sometimes and it just turned out to home page a lot

Does the waranty count if my ipod touch get stuck on facebook sometimes and it turns to the homepage... And it get stuck if i click at the pictures...
Pleasehelp me out...
Thanks

The Basic Troubleshooting Steps are:
Restart... Reset... Restore from Backup... Restore as New...
Restart / Reset
http://support.apple.com/kb/ht1430
Backing up, Updating and Restoring
http://support.apple.com/kb/HT1414
If you try all these steps and you still have issues... Then a Visit to an Apple Store or AASP (Authorized Apple Service Provider) is the Next Step...

Intel Imac Tiger 10.4 boot issue/USB Boot

Intel 20 inch Imac had been CLEAN install Tiger 10.4 from
Grey Original install disks. ALL hardware and O/S working perfectly fine.
Tried to upgrade to Leopard 10.5 but after startup the installer does a "data integrity check"
and reported a " dirty/defective " spot on the Leopard dvd disk and then it offered selection
to restore/reboot back to the original Tiger 10.4 O/S.
The Installer script/process failed and somehow screwed up the boot process.
The leopard disk would not eject. (I have since manually removed it and destroyed it as defective).
What I get now on boot up is the boot tone grey-white screen then the apple shows up then I get
a black screen with the following error message:
localhost:/ root# CSRHIDTransitionDriver::stop
IOBluetoothHCIControler::start Idle Timer Stopped
At this point I hit Enter key and get the following standard root prompt:
localhost:/ root#
I can traverse directories and list files ( cd dirname ),( ls -al) and the original clean Tiger 10.4 instalation
seems to be present and largly intact.
Many commandline commands work but many do not issuing an error like path/image not found.
" info diskutil " displays man page for diskutil. ctrl c exits the man page.
" diskutil list " returns the following:
dyld: Library not loaded: /System/Library/Frameworks/CoreServices.framework/Versions/R/Frameworks/WebServ icesCore.framework/Versions/R/WebServicesCore
Referenced from: /System/Library/Frameworks/CoreServices/.frameword/Versions/R//CoreServices
Reason: image not found
Trace/BPT trap
I have tried ALL the usual boot up keypresses that should invoke boot selection menus and other
such utilities but none of these work.
I need some kind of manual command/script/other process to repair the boot process or to FORCE
a boot to an external USB dvd drive from which I have the Tiger install disk so that
I may format the hard disk and redo a clean Tiger 10.4 install.
If there are any mac/BSD/Linux command line gurus in Long Island, NY area
I would be happy to demonstrate this most agrevating issue at the site.
Tnx for your help
Alfred
631-928-2424
billing -AT- adayton _dot_ com

check the knowledgebase. I believe you need to "zap" the PRAM. I had this problem with a macbook and whatever's in the kb solved it permanently.

Imac gets stuck on spinning circle when shutting down

I have had my mac for only 1 year and still getting use to the troubleshooting. My Imac keeps getting stucking on spinning circle when I shut down or reboot. I have unplugged all my external hard drives and printer. Nothing seemed to work. Can someone point me in the right direction.
Mac OS X Lion 10.7.4 (11E53)
4gb Ram
Processor 2.5 GHz Intel Core i5

You might want to make sure that there are no open applications when you shut down, one of them may be hanging your Mac trying to shut down. Another thing to look for is to make sure that there are no print jobs that are not complete. Open the print and scan preference pane, double click your printer and see if any things hanging there.

HT3964 My iMac gets stuck on blue loading screen after it starts up.. Reset smc and pram?

My 2009 iMac on OS X leapard will start up but gets stuck on the blue loading screen. Ive been instructed to reset the smc and pram but can't figure it out nor find it online in a simple way. Can someone please assist? Again: it fires up but gets stuck on blue loading screen..Thank you!

Reset SMC:
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.
Reset PRAM:
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

Help - G5 gets stuck at boot

G5 continues to get stuck at:
DART enabled
There is no hardware issue that I can tell. I fear my boot loader has been corrupted however, I am not expert and hope some of you may share some light on the subject.
I can't boot into CD either selecting from the options screen it gets stuck as above.
I am running Darwin Kernel Version 9.8.0
Thanks!

Here the full screen output at boot and where it gets stuck:
*Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2009; root:xnu-1229.15.4~1/RELEASE_PPC*
*standard timeslicing quantum is 10000 us*
*vmpagebootstrap: 1020225 free pages and 28351 wired pages*
*migtable_maxdispl = 79*
*103 prelinked modules*
*Loading security extensions com.apple.security.TMSafetyNet*
*calling mpopolicyinit for TMSafetyNet*
*Security policy loaded: Safety net for Time Machine (TMSafetyNet)*
*Loading security extension com.apple.nke.applicaitonfirewall*
*Loading security extention com.apple.security.seatbelt*
*calling mpopolicyinit for mb*
*Seatbelt MACF policy initialized*
*Security policy loaded: Seatbelt Policy (mb)*
*Copyright (c) 1982, 1989, 1991, 1993*
*The Regents of the University of California. All rights reserved.*
*MAC Framework succesfully initialized*
*using 16384 buffer headers and 4096 cluster IO buffer headers*
*Airport_Brcm43xx::probe: 050b6000, 0*
*DART enabled*

Late 2007 Intel iMac getting stuck at boot...sometimes.

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