Regarding iMac Over heating, is it normal?

I recently purchased my 24" iMac and have been heavily impressed with my first Mac, but I am concerned about it overheating intensely. I don't know if this is normal due to the aluminum or if my iMac may have something wrong with.
Can someone confirm if this is normal or not for me.
Thanks

appleimac08 wrote:
You say that HD ambient should not run above 55C.
Most drives are spec'd at either 55C or 60C max ambient, so your 52C is
within limits; but if it were mine, I'd prefer to see something closer to 40C
when there's no heavy-duty disk activity.
1) Is this program reliable? (it's called iStat Pro)
Yes, I think iStat is very good. I used to use it, but switched over to Bresink's
HardwareMonitor (about $10). I like Bresink's stuff, but realistically, iStat Pro
is probably just as accurate. Bresink also has a free TemperatureMonitor app,
but it doesn't report fan speeds.
2)The temperatures given are: CPU A 41C
GPU 53C
GPU Diode 54C
GPU Heatsink 51C
Ambient 24C
Memory Control 46C
Airport Card 63C
HD Bay 1 52C
Are these temperatures normal?
That's a hard question. Nothing there looks too bad, but I don't understand
why some iMacs seem to run much hotter than others -- just loafing along.
For example, my HD Bay 1 is currently at 37C and CPU A at 34C, and that's
about where they always are (on my 20" white C2D). My ALU iMacs were in
the same ballpark.
If it were my machine, I'd be tempted to crank-up the fan speeds a little
and try to get the HD Bay 1 temp down to the low 40C range. I haven't
had any need for it, but "smcFanControl" freeware is reportedly effective
at reducing temps. Small fan speed increases seem to have a big effect.
http://www.macupdate.com/info.php/id/23049/smcfancontrol
CPU and Hard Drive Fan: approx 1200 rpm
Optical Drive: approx 700 rpm
My HD fan is at 1400 rpm and the other two are about 800 rpm, but I
believe that's mainly a design difference between white and ALU iMacs.
According to Bresink's HardwareMonitor, all three fans are essentially
at their design minimum speeds for my machine.
Please let me know what these numbers mean and if they seem right.
(The airport card temp seems very high)
My iMac doesn't seem to have temp sensor on the Airport card, but that
subject comes up frequently. I'm sure a search of this forum would find
some interesting discussions (and maybe even some useful information)
on that topic.
Looby

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)o|WARN' -k Message Rne 'Goog|ksadm|Roame|SMC:|suhel| VALI|ver-r|xpma' -o -o -k Sender fseventsd -k Message Req SL -o -k Sender Req launchd -k Message Req de: " '-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 );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 );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 38 52 66 54;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;B3 4 0 65;A3 14 6 32 0;B4 0 16 11;A1 39 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&&{ 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;D12 4 51 32 53;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.

  • My iPod touch 5th generation had white screened an it won't let me rest it by holding down the home button an the power button for ten seconds I've pulled it in to iTunes an its not being detected what can i do as its starting to over heat?

    my iPod touch 5th generation had white screened an it won't let me rest it by holding down the home button an the power button for ten seconds I've pulled it in to iTunes an its not being detected what can i do as its starting to over heat?

    If you can't get it to shut down or restart when holding down the Home and Sleep/Wake buttons and you can't get it recognized in iTunes to restore it, the iPod may have suffered a hardware failure and will need to go to Apple for service. Someone else here may have additional suggestions, though.
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  • HT4061 I got a brand new iPhone 4S on contract last week and since I've had it it's been over heating and it's turned itself off once and every now and then the screen flickers I just wanted to know is this a common thing as I've never had an iPhone befor

    My new iPhone 4S that I have had a for about a week keeps over heating a lot and its turned itself off once and I couldn't turn it on for over half an hour,also my screen flickers from time to time and I'm not sure what to do as I not had an iPhone before can anybody help me please I would be very greatful.

    No, it's not normal.
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  • How to solve over heating problem in macbook pro (13 inch)?

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    Im also having temperature issues...
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  • C7 switches off if it is over heated?

    yesterday my c7 was connected to laptop and phone was in 3g mode.
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  • IPod Photo 30 Gig Over-heating

    My dad was using this one for a while before he gave it to me, and he said he has never noticed an overheating problem. He hasn't updated the firmware for a while, so when I got it, I updated, and then let it sit and charge because the battery was very low. After a while, I went to go pick it up and it was getting a little hot, and I noticed the battery was almost fully charged, so I just let it go a little bit more. I looked back about 10 min. later (it should've been fully charged by then) and it wasn't charged all of the way. I picked it up and it was hot too. At the time, the ipod did not have anything on it. It was freshly formated after I updated the firmware. I was not transfering anything to it eather. It was just sitting there on the dock for a while. I want to know if this is normal after you format it or after you update the firmware? Like I said, my dad said he has never noticed any over-heating in the past. Oh yeah, and also when I click the "Sleep" button on the menue, it does not want to go to sleep. Even if I hold down the "Play/Pause" button, I have to try a few times before I can get it to sleep. I have also tryed re-booting the iPod and it still did the same thing. Please tell me if I should send this baby back to apple for a minor repair please. Thankyou for the help in advance.

    I think I have the same model as you, and I have never encountered that sort of problem. I think your best bet is to get it repaired.

  • My iphone 4s Getting Over Heating While Playing Motion Games

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