IMac will not start up. Help please!

Earlier today I was surfing the Net with Safari. Suddenly, the page I was loading stopped loading. The arrow pointer would not move if I moved the mouse. The menubar clock's seconds stopped changing. The entire system was frozen. After about 15-20 seconds, the iMac's fans started blowing louder. After another 30 seconds, I gave up and tried the force quit key combo. No dice. So then I held down the power switch, forcing a shutdown.
Now, when I try to boot my iMac G5, I get one of 3 outcomes:
(a) I hear a faint fan sound, and perhaps the hard drive makes a sound, but nothing else happens.
(b) I hear the startup chime, but the chime doesn't finish. It's cut off and the iMac turns off. Sometimes the light on the front of the iMac comes on for a moment, sometimes not.
(c) The iMac starts up normally. After a minute or so, the whole system freezes again.
I use this Mac at work for all my medical records. Now I have no access to my medical records (but I do have a backup, thankfully). Without a working medical record system, I've had to cancel all my patients for the day and I'm scrambling to find a solution.
I found an article in the Apple knowledgebase. I followed the article step by step. It's called iMac G5: Troubleshooting when your computer won't turn on, and can be found at http://docs.info.apple.com/article.html?artnum=300908 .
With the back cover removed, and the power cord plugged in, LED 1 lights.
When I hit the internal power button, LED 2 and LED 3 lit up, and OS X started up. The login window appeared. Since my keyboard and mouse were not plugged in, a window came up saying that the iMac was looking for a bluetooth mouse. I don't have one, so I plugged in my USB keyboard and mouse, but the mouse never saw power (the red laser never came on). From that point forward, I couldn't get the mouse to work and after maybe half a minute, the fans started blowing again. So I think this was the same as my Mac starting normally, but then freezing. This time, it froze before I could login.
One thing I noticed: the iMac had been off and unplugged for more than 45 minutes. The last time it had been off and unplugged for more than 45 minutes, when I plugged it in an tried to boot it, it actually started up and I got to the finder. But then after I started to run Disk Utility, the OS froze up again. So it seems, if I leave the iMac off and unplugged for some length of time (45 minutes works), it will boot into OS X.
Okay, so on with the steps described in the article. I held down the internal power button, and the iMac shut down. I hit the SMU button (with the iMac off). Then, I tried the internal power button again. This time, LED 1 lit, and LED 2 lit, but then LED 3 does NOT light up, and the computer does not start up. I just hear a light fan blowing (near the processors, I think) and the hard disk makes a few clicks, nothing more. No chime, no display.
So then I reset the SMU again, by pressing the SMU button (which turned off the computer). Then I pressed the internal power button again. The computer still doesn't start up normally. Same as above.
Reading through the article it asks, after pushing the internal power button, does LED 2 come on momentarily, or not at all? Actually, neither. It comes on, and stays on. The article has no instructions for you if LED 2 comes on and stays on. At this point, I'm stuck.
So I checked another knowledgebase article, About the iMac G5 diagnostic LEDs. http://docs.info.apple.com/article.html?artnum=86815
It says:
- LED 1 indicates that trickle voltage from the power supply has been detected. This LED will be ON when the computer is turned off and your power supply is working correctly.
- LED 2 indicates that the main logic board has detected proper power from the power supply when the computer is turned on. This LED will be ON when the computer is turned on and the power supply is working correctly.
- LED 3 indicates that the computer and the LCD display are communicating. This LED will be ON when the computer is turned on and video signal is being generated.
- LED 4 lights only if the computer detects an over-temperature condition. This LED will be OFF when the computer is turned on and running at the correct temperature.
On my iMac, LED 1 and 2 light and stay on, while LED 3 does not (except for the first time I tried this, see above). This seems to indicate a problem generating a video signal.
So maybe it's a problem with the video signal, but I think something else is going on too.
iMac G5 (First Generation) Mac OS X (10.4.6)

right down to the "Troubleshooting when your computer won't turn on" 2nd LED staying on when the procedure only gave two options: Momentarily on or not coming on at all.
Hi guys,
The fact that the second LED stays on is actually normal. This what is meant to happen if neither the power supply or one type of motherboard problem have occured. Para 12 of http://docs.info.apple.com/article.html?artnum=300908 only provides the results (no light or momentary) that occur if the test provides evidence of a problem with either of them.
As Anthony notes, if LED remains lit constantly then power is reaching the motherboard and the computer is turned on as described in http://docs.info.apple.com/article.html?artnum=300908 .
Just wanted to make this clear in case other users got worried if they found LED 2 lit.
I agree that http://docs.info.apple.com/article.html?artnum=300908 could be made clearer in this respect.
Cheers
Rod

Similar Messages

Please help my iMac will not start. The apple logo comes up and the wheel goes round and then I am left with an empty white sceen can anyone help

Please help, my iMac will not start up, the apple comes up and the wheel goes round but then I am left with a blank white screen. Has anyone any ideas.

Locate your original install disk (it's grey) and use it to restart your iMac by holding the "C" key during startup. Use the disk utility to repair your harddrive.

Please can somebody help, my imac will not start up, just chimes, apple sign then spinning cog. I have tried many key codes, no success, would really like to talk to someone.

please can somebody help, my imac will not start up, just chimes, apple sign then spinning cog. I have tried many key codes, no success, would really like to talk to someone.

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 $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB ' com.adobe.fpsaud com.apple.AirPortBaseStationAgent com.apple.installer.osmessagetracing ' ' 1274181950 464843899 1233118628 ' 51 5120 files );N5=${#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=(' s/[0-9A-Za-z._]+@[0-9A-Za-z.]+\.[0-9A-Za-z]{2,4}/EMAIL/g;/\/Shared/!s/(\/Users\/)[^ /]+/\1USER/g;s/[-0-9A-Fa-f]{22,}/UUID/g;' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${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[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { split("'"${p[41]}"'",b);for(i in b) print b[i];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$/ { n++;print;} END { split("'"${p[41]}"'",b);for(i in b) print b[i]".plist";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 27 14`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n [N/A]";"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text$|(Bo|PO).+ 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);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / / { print "'"${p[28]}"'";exit;};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$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */ /;' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps sudo\ crontab sudo\ iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl sudo\ launchctl crontab 'sudo defaults read' stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' defaults\ read scutil sudo\ dtrace sudo\ profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil sudo\ lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${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 \$Message' -k Sender kernel -k Message Req 'bad |Beac|caug|corru|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:|suhel| VALI|ver-r|xpma' -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,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)}'" );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 );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() { [[ "$v" ]]&&sed -E "$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 $1;};for i in 1 2;do for j in 0 2 3;do eval D$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;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 35 49 61 51;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;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;A2 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 62 42;D12 34 43 53 44;D12 22 20 32 25;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 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 26 48 49 49;B3 4 22 57;A1 26 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;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.
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.

TS3824 iMac will not start and switches off almost immediately

My iMac will not start. It switches off about 3 seconds after pressing the power button. The iMac then starts again, and fails again after 3 seconds. This cycle just repeats.
I have not installed any new software, this seems to happen for no reason.
Any help would be appreciated, as I cannot use my iMac at all.

Lyonhair wrote:
I was hoping to speak to Apple themselves about my issue. My local Apple store is too far away. Is there anyway to talk to apple via email?
I thought there was a way to start your iMac in an emergency independent of my hard drive. From a flash drive for example? If this can be done, where can I get the appropriate software to put on the flash drive?
You will need to call AppleCare if you want to speak to them yourself. They don't participate in this forum in any fashion, and no they don't support via email. If you don't have AppleCare you will be charged, otherwise you will need to take it into an Apple Store or AASP. If you don't know how to contact AppleCare or an AASP please start with AppleCare Contact Info
Good luck.

My imac will not start - it is hunged up, when I turn it on I see the apple and the little wheel go around and around and nothing happens - what can I do ???

Hello - can anybody help me - my Imac will not start - When I try to start it I just get to see the apple and the wheel that goes around and around HELP !!

Restart in Safe Mode, this will clear some caches. How you do this is when you hear the startup tone hold down the Shift Key until you see the progress bar appear. Let it fully boot, then open System Preferences - Startup Disk and ensure your internal HD is selected and then click Restart to test. If you still don't have luck you should run Apple Hardware Test in Extended Mode, you may need to run the test 2-3 times to report any errors. To run AHT you will need teh ORIGINAL Install Discs that shipped with the computer. Instructions for AHT are in:
http://support.apple.com/kb/HT1509
Have you been backiing up?

IMac will not start-up, do not have a backup, any way to back it up before erasing the drive?

Our iMac will not start up, it goes to the flashing question mark screen. I have tried the different steps listed at http://support.apple.com/kb/TS1440, but they have not worked, as it says the disk is not repairable. It says I need to erase the disk and reinstall OS X. However, I do not currently have a back-up of the hard drive, so is there any way I can back it up before erasing and reinstalling, even though the iMac will not start up? Thanks.

I also tried downloading Snow Leopard onto an external hard drive and boot from there, but it just comes up to the choose a language screen everytime.

IMac will not start following OS X 10.9.4 update - takes 30 minutes to load and then turns off

iMac will not start following OS X 10.9.4 update - takes 30 minutes to load with spinning wheel and progress bar and then when it appears to be finished it powers off?

Thanks for the suggestion - this was the 1st thing I tried but it does not appear to work either. I'm still getting the 30 minute spinning wheel and slow moving progress bar on a grey background - even if I try to start the iMac in 'safe' mode!

My Imac will not start up. What do I do??

My imac will not start up. I have shut it down and turned it on but it will not come up. What do I do?

Take a look at > Troubleshooting: My computer won't turn on

G4 iMac will not start normally

My wife's G4 iMac will not start normally. I have used the procedures from http://docs.info.apple.com/article.html?artnum=107393 and the "Disk Utility" on http://docs.info.apple.com/article.html?artnum=106214 to no avail.
When trying to start, a message comes up saying that the computer must be rebooted. Trying to boot in "Safe Mode" fails after an hour and shuts down the computer, and the "Disk Utility" runs for an hour or two and then gives a message that it was unable to repair the "minor error" on the hard-drive.
After force starting the iMac by holding the power button until the command line appears, I tried running fsck, but the commands are unrecognized. However, if I type in "mac-boot" at the command prompt, the iMac will start. I have copied all of my wife's photos, movies and music, and Word and Excel documents, etc. to my XP PC's hard-drive using USB flash drives.
My question is two-fold:
#1. I have heard that "Disc Warrior" is excellent at resolving hard-drive errors. Can anyone comment on "Disc Warrior" and is there anything else out there that someone can recommend?
#2. I bought RAM to bring the total up to one gig, so I was thinking of upgrading the hard-drive and installing Tiger on the new and larger drive while in the "Ball" changing the RAM. What is the maximum capacity hard-drive I can put into the G4 800mhz iMac without any problems and is there any particular model hard-drive that seems to work best?

I tried reading the link that you posted http://www.thexlab.com/faqs/kernelpanics.html but I don't have a disk with the "Apple Hardware Test".
Since I made the post that you replied to, things have gotten worse. I can no longer get onto the internal hard-drive. I have tried many different methods including the methods written about in the linked article you supplied. I can get onto the Installation CD and I can run "Disk Utility" from the CD. I have repaired the file permissions, but when I run "Repair Disk", it runs for about two hours and then suspends operations with a dialog box stating, "First Aid failed. Disk Utility stopped repairing Volume because the following error was encountered: The underlying task reported failure on exit." and then in the progress box after the list of addresses, there is a message:
(in red) Incorrect number of thread records
Invalid leaf record count
Invalid Map Node
Invalid directory Item Count
Invalid directory Item Count
Invalid volume directory Count
Invalid volume file Count
Volume Bit Map needs minor repair
Invalid volume free block count
Volume header needs minor repair
(in green) repairing volume
(in red) The volume could not be repaired
Error: The underlying task reported failure on exit
(in black) 1 HFS volume checked.
(in red) 1 volume could not be repaired because of an error
(in black) repair attempted on 1 volume
(in red) 1 volume could not be repaired.
I recently bought the 1/2gb replaceable RAM and the 1/2gb "Hidden" or "Factory Installed" RAM. I was planning on installing them soon. Since the "Disk Utility" is telling me that there are faults on the internal hard-drive and I have to go into the "Ball" to replace the "Hidden" or "Factory Installed" RAM, I figured that I might as well replace the hard-drive and redo the system.
Unless someone comes up with something I can do which will not cost me much money, I figure that I might as well install the RAM and a 120gb Western Digital Hard-drive that is about a year old, but was only used for a few days in an XP PC. Will the 120gb drive be recognized? I was thinking of partitioning it as 80gb and 40gb partitions. Does that sound good? I would install the OS on both partitions so that I could always boot if there was a failure.

IMac will not start up - blue screen after months of Leopard use

I have an iMac G5 that will not start up. It hangs at the blue screen, but does not have the issue with the ApplicationEnhancer.bundle file. It will start up in safe mode.
This iMac will not start from a bootable external drive (the external drive can be used as a start up disk successfully with my iBook G4). The iMac's internal drive can be used as a start up disk for the iBook (via the target mode) and does not appear to have any problems. Does this seem like it is a hardware issue with the iMac? The iMac also hangs at the blue screen if I attempt to start up with the Leopard install disk after using the startup disk preference pane in safe start mode.
I have repaired permissions, verified the disk, etc., using the disk utility. I have cleared caches, preferences, and so on, using Mac HelpMate.

It may be that some of your login items might be incompatible with the mac. Also, try booting up from the install disk and repair your disk.

Premier Element error at start-up, will not run. Help please.

purchased Premier Element 10 for my macbook, after loading download fix, got a --- [ perforceroot/pre10/premier/element/mac/......DirectoryRegistry,cpp-283 ] error. Program will not start.

Create a new admin user account and try to run from there. Something went wrong with the permissions of an important folder. The folder accesss, rather the lack of it, gives this error. I remember an Adobe employee mentioning this in these forums when PrE10 was launched...

I am running windows 7. We updated firefox and it would no longer open. I uninstalled it and reinstalled from firefox website. I click on the firefox icon and it will not open. Help please

It installs and I attempted to launch the browser and it never starts. I tried to uninstall, but it says firefox is running. I restart my computer and uninstall and try again. It still will not open after install is complete. Why won't it ever open up? Help please!

Right-click on your Windows Taskbar and select Start Task Manager. Look in Task Manager for processes running that are Firefox-related, such as Firefox.exe or plugin-container.exe. If you see either of those, right-click each of them and select "End process". Then try again to start Firefox in [[Safe Mode]]. 
*If Firefox will start in Safe Mode, select the option you are presented with to disable your add-ons and plug-ins and restart Firefox normally. You likely have a plug-in, add-on, or a combination of two or more that is causing the problem. Because Firefox allows users to customize endlessly, sometimes there can be conflicts between customized items. From the Firefox menu bar, go to Tools -> Add-ons then re-enable them one by one, restarting Firefox after each and testing after each one to see which one or combination of two or more is causing the problem. 
*If Firefox will not start in Safe Mode, make sure you again check Task Manager and end any running instances, then uninstall Firefox and download a fresh copy from mozilla.org/firefox using another browser temporarily. Re-install Firefox (see: [[Installing Firefox on Windows]] for more help ) and try running Firefox again.
Please report back your progress.

TS1440 Flashing circle prohibition sign, Mac will not start. Help!

Hi there,
I need some guidance can some techie please help me!
My Mac book pro, 10.6 will not start, a flashing prohibition sign and a folder with a question mark appears on my screen.
I have shut down and tried thePRAM start up but nothing. I have snow leopard disk, should I re install. Will I lose all my data?
I recently updated iTunes and a day later my computer crashed. Any help would be appreciated.
Love,
Kind stranger

If your machine was upgraded to OS X 10.7 Lion or 10.8 Mountian Lion, then DO NOT PROCEED!
The 10.6 disks cannot be used for 10.7 or 10.8, if that's the case, then let me know as a different method is involved.
On the second screen booted from the 10.6 disk, under Utilities menu is Disk Utility.
Select your entire internal boot drive on the left, it should have a name and a size.
Click First Aid > Repair Disk and Repair Permissions.
If the drive doesn't appear on the left, it may mean it's dead or there is a broken connection between the drive and the computer.
If Disk Utility says "can't repair, backup and erase and install" then the drive works, it's that it can't repair the file structure, likely because of a failed sector on the drive (may be natural or caused by shock or failing drive)
However you don't have to erase if it says to do so, if the drive works mechanically the data can be recovered.
The drive may work fine if removed from the machine as well if it's not showing up on the left in Disk Utility.
If the drive doesn't work, then the data can be recovered if it wasn't Filevaulted, but the platter dissection required is expensive.
My computer is not working, is my personal data lost?
If the drive is repaired, do it again.
After the drive is repaired, Quit Disk Utiltiy and select Reset Password from the Utilties menu.
Don't change the password if your just repairing user permissions, instead select the drive at top and the account your having issues with.
See an area labeled Reset Home Directory Permissions and ACLs. Click the button.
After that, quit and your in the OS X install screen, select the boot volume and click Install, this will overwrite OS X 10.6 with a fresh copy.
Quit and restart, then when you log in hit Apple Menu > Software Update until clear, you should be on 10.6.8
Some third party programs may not work, you will have to reinstall them from original sources and make sure they are compliant with 10.6.8

Imac will not start up... wheels keep spinnin then shut off..

My imac does not start up. I tried resetting the PRAM, PNUM, all of that stuff and to no avail. What happens is the grey apple screen comes on, the wheels start spinning, then it just shuts off. I got the tiger disk in there and I press control/command s and it brings me to a blue screen that show my HD and the start up disk. I cannot select the start up disk for the life me. My mouse won't move over, nothing. When my mac was working, I couildnt delete some files that were in my trash and I went to my terminal and enter the command to start in safe mode, because I was having a problem manually starting in safe mode. But the problem is I think I have/got some sort of virus that is attacking my safe mode, because safe mode never ever kicked on. So now my computer is simply gone...HELP>>>>>>>
Doobs

First off, you have the keystrokes wrong.
Command-S will startup in single user mode, and can be used to repair the directory if the machine has enough free hard disk space. See my FAQ*:
http://www.macmaps.com/directoryfaq.html
Shift key will startup safe mode so you can startup without any drivers running.
Control-Command-S will do nothing.
Option can be used to startup the optical disc with the startup manager:
http://docs.info.apple.com/article.html?artnum=106178
There are no Mac OS X viruses out there. Is your data backed up?
Have you checked your free space*:
http://www.macmaps.com/diskfull.html
And has the clock battery been replaced in the last 4 years?
PNUM is not an acronym dealing with Macs, though PRAM is.
- * Links to my pages may give me compensation.
Message was edited by: a brody
Message was edited by: a brody

My imac will not start

i start the machine but the imac will not load, the error message is "Your computer restarted because of a problem..." And then it starts over again and again and again, with the same error message every time

Try to boot into Safe Mode OS X: What is Safe Boot, Safe Mode? - Apple Support
Be patient as it will take longer that normal to boot if it does, and not everything will work when it does. Once booted in Safe Mode try to locate a recent panic log Mac OS X: How to log a kernel panic - Apple Support and copy and paste the entire panic log here, please make sure that it includes the hardware profile section at the end. Panic logs will start with the word panic.

Mac will not start. HELP!!

my 17" imac early 2006 will not start it came on yesterday with a fail screen and telling me to hold the power key to restart once i did that the cd drive was going made and no screen and the power light stays on. i have tried holding down the option key cmd+PR and this does nothing. no apple start up tune just a power light and a sound like the hard drive getting ready to start. any help would be great. wanna get fixed before my pc mates give me hard time as i always rave about macs.

Hi
It sounds like you are experiencing kernel panic, if you see that grey screen with multi languages. The cause is usually hardware, possibly RAM. Have a look at this link. It may help you.
http://www.thexlab.com/faqs/kernelpanics.html
It mentions Tiger, but I think you could work with that.
I hope you can get things fixed before your mates come around.
Message was edited by: roam

IMac will not start up. Help please!

Similar Messages

Maybe you are looking for