Should i shut down my imac

should i shut down my imac or leave it running all the time?

You should only shut it down when leaving the computer unattended for more than a few days or working inside the case. Otherwise, sleeping it is enough.
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Should I shut down my iMac at night?

I never turn off my iMac. But now with all of the green environmental awareness and escalating price of electricity I wonder if I should regularly turn it off. In the past I remember being told that turning off and on ages the computer more rapidly and makes the chance of a part failure more likely. I also wonder how much I'll save on my electric bill by shutting down for around ten hours a day versus having it in the sleep mode for those ten hours.

Hello BluSky:
You will, I am sure, get differing opinions. I never shut my iMacs down unless I am leaving town for several days. I always put them to sleep. The Macs draw very little power while they are fully asleep.
I come from the school that feels that repetitive on/off of electronics shortens the mean time to failure. (not scientific, let me hasten to say).
Barry

Do I need to shut down my iMac (intel) before attaching an external HD?

Hi
Should I be shutting down my iMac before plugging in an external HD (LaCie). It'll go to the FW800 or eSata port.
Thanks
Allen

You certainly don't need to shut down your computer at all, but remember that when you want to remove the external drive, make sure you either drag its icon to the trash or use the eject ⌘ e command.

Should I shut down my computer when not in use

should I shut down my computer when not in use, overnight for instance?

Hello! Leaving it on 24/7/365 is perfectly acceptable. You may save some electricity but personally I think you'll pay for it with a more troublesome system. I do however set the monitors to go to sleep. I like the no startup lag time of running 24/7/365. That said, if I lived in an area prone to electrical outages or if my location was prone to lightening strikes I'd probably shut it down and unplugged. Of course with it being unplugged the pram battery may run down. These old G4's have been running 24/7/365 for years now. I do try to restart every few weeks just for good measure! In the end it's your preference. The hardware works best when a constant temperature is maintained. Tom

Should i shut down my computer every day

Should i shut down my hp desktop computer every day or leave it running
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Hi,
The following article may help you to make decision:
http://lifehacker.com/5940176/is-it-bad-to-shutdown-my-computer-regularly-or-leave-it-on-all-the-tim...
My experiences: there are many computer equipments have been running 10 or even 20 years continuously and now no one is willing to turn them off because they may never turn on again. Just ask someone who has few FEP's (Front End Processor) running now.
Regards.
BH
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My external drive won't eject. should I shut down my computer? It says if I force eject, I might lose info stored!

My exernal drive will not eject. Should I shut down my computer? It says if I force eject I might lose info!

Hey I typically have this problem as well. For starters what steps have you went to to eject the drive? Have you just done it from finder or have you gone to the Disk Utility and tried to eject from there as well? If not then I would recommend this first. I would also recommend before doing anything to save any neccessary information that was placed on the drive locally if possible.

Backup drive keeps rotating after shutting down the iMac

Hi,
since I installed Leopard, my backup drive (LaCie USB) stays in operational mode after I shut down the iMac (intel 20").
When I choose to shut down the mac, the drive starts to rotate but doesn't stop... Under Tiger this wasn't an issue.
I think the problem is that Leopard doesn't "tell" the LaCie drive to go in sleep mode before the computer shuts down.
Does anyone experience the same problem and know what the solution is?
regards, Martijn

Actually it does open but nothing shows up. I can't use my iMac unless I use the Safari browser and I want to use Firefox! I'm at my wits end as to how to fix this. I have tried everything that troubleshooting has suggested on Mozilla support. Help!!!!!!!!

Why can I not restart or shut down my imac without using the power button?

why can I not restart or shut down my imac without using the power button?

Reset the SMC and then try a restart or shutdown from the drop down menus.
Intel-based Macs: Resetting the System Management Controller (SMC)
Then if that doesn't work, backup because you have an OS X issue that will require either a repair or reinstall.

IPhoto shuts down my iMac

When I try to work in iPhoto it shuts down my iMac. I had a lot of problems with iPhoto in December and worked with an Apple Advisor then to rebuild my library and every thing was fine for a while... then the shut downs started happening. Randomly at first, now all the time. I have a 24" iMac with 4G ram, my library has 11K photos... running most current versions of both iPhoto and Lion. Have MobileMe but haven't switched to iCloud yet. Evidently I'm no longer covered under Applecare as the advisor informed me when I called. He suggested one option would be to lug my computer into a genius bar, not easily done and wondering how this would be a hardware issue... although I'm willing to do this to resolve this issue. Any advice/suggestions would be appreciated.

First launch iPhoto with the Option key held down and create a new, test library. Import some photos and check to see if the same problem persists. If it doesn't the the problem lies with your original library.
In that case make a temporary, backup copy (select the library and type Command+D) and apply the two fixes below in order as needed:
Fix #1
Launch iPhoto with the Command+Option keys held down and rebuild the library.
Select the options identified in the screenshot.
Fix #2
Using iPhoto Library Manager to Rebuild Your iPhoto Library
Download iPhoto Library Manager and launch.
Click on the Add Library button, navigate to your Home/Pictures folder and select your iPhoto Library folder.
Now that the library is listed in the left hand pane of iPLM, click on your library and go to the File ➙ Rebuild Library menu option
In the next window name the new library and select the location you want it to be placed.
Click on the Create button.
Note: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments but not books, calendars or slideshows. The original library will be left untouched for further attempts at fixing the problem or in case the rebuilt library is not satisfactory.
If the new, test library also crashes your Mac a reinstall of iPhoto is indicated. To do so you'll have to delete the current application and all files with "iPhoto" in the file name with either a .PKG or .BOM extension that reside in the HD/Library/Receipts folder and from the /var/db/receipts/ folder,
Click to view full size
Then install iPhoto from the disk it came on originally and apply all applicable updaters.
OT

Should i shut down my macbook air each night

how often should i shut down my macbook air?

if youre not using it for a few hours
leaving your macbook both ON charge AND in sleep mode is bad on the battery
merely in sleep is another matter, which is fine.
Considerations for the long life of your MacBook. Handling and environmental care tips
General consideration of your MacBook battery
Contrary to popular myths about notebook batteries, there is protection circuitry in your Macbook and therefore you cannot ‘overcharge’ your notebook when plugged in and already fully charged.
However if you do not plan on using your notebook for several hours, turn it off (plugged in or otherwise), since you do not want your Macbook ‘both always plugged in and in sleep mode’.
A lot of battery experts call the use of Lithium-Ion cells the "80% Rule", meaning use 80% of the full charge or so, then recharge them for longer overall life. The only quantified damage done in the use of Lithium Ion batteries are instances where the internal notebook battery is “often drained very low”, this is bad general use of your notebook battery.
A person who has, for example, 300 charge cycles on their battery and is recharging at say 40% remaining of a 100% charge has a better battery condition state than, say, another person who has 300 charge cycles on their battery and is recharging at say 10-15% remaining on a 100% charge. DoD (depth of discharge) is much more important on the wear and tear on your Macbook’s battery than the count of charge cycles. There is no set “mile” or wear from a charge cycle in specific. Frequent high depth of discharge rates (draining the battery very low) on a Lithium battery will hasten the lowering of maximum battery capacity.
All batteries in any device are a consumable meant to be replaced eventually after much time, even under perfect use conditions.
If the massive amount of data that exists on lithium batteries were to be condensed into a simplex, helpful, and memorable bit of information it would be:
1. While realistically a bit impractical during normal everyday use, a lithium battery's longevity and its chemistry's health is most happy swinging back and forth between 20% and 85% charge roughly.
2. Do not purposefully drain your battery very low (10% and less), and do not keep them charged often or always high (100%).
3. Lithium batteries do not like the following:
A: Deep discharges, as meaning roughly 10% or less on a frequent basis.
B: Rapid discharges as referring to energy intensive gaming on battery on a frequent basis (in which case while gaming, if possible, do same on power rather than battery). This is a minor consideration.
C: Constant inflation, as meaning always or most often on charge, and certainly not both in sleep mode and on charge always or often.
From Apple on batteries:
http://www.apple.com/batteries/notebooks.html
http://support.apple.com/kb/HT1446
"Apple does not recommend leaving your portable plugged in all the time."

Should I shut down my OS X 10.9.4 Mac each night, yes or no? Explain why.

Should I shut down my OS X 10.9.4 Mac each night, yes or no? Explain.

I was just curious if there is any harm in shutting it down each night.
That's the difficult part. You'll get answers both ways. You could call Apple's tech support and the person you have on the phone will tell you to leave it on. Call back, and someone else will tell you to turn it off.
Back in the days of much flakier hardware (I mean, way back), our first computer was an IBM XT clone running DOS 3.1. We always turned it off when not in use. Never had a problem with it. Nor have I ever had an issue turning our various computers off over the past 30 years. I just don't see why I'd want to leave it on, uselessly using electricity sitting idle.
If I have to walk away from it for a bit, I'll leave it on. But if I know it's going to be a couple of hours or more before I get back to the computer, off it goes. Whether it's first thing in the morning, or turning it on again midday, waiting a lousy minute for it to come to the desktop from a cold start rather than more quickly coming out of sleep mode isn't that big of a deal.

I can't shut down my imac..

Hi all,
I can't shut down my imac.. The shutting down button doesn't work and also pressing the power button doesn't work.. The message "Are you sure you want to shut down your computer now", it's not coming up anymore.. what can I do? Is the only way to remove the plug?
(ps. no programs are on)
Thanks!!

Did you try Keyboard shortcuts?

Slow start up and shut down of iMac

My four months old iMac 21-inch is getting slower, which is evident from longer time requiring for start up as well as shut down. I understand that Mac OS has built in facility for taking care of such maintenance tasks as defrag, disk clean, which we used to do manually in Windows. I therefore is not very confident about using third party utilities. But the resultant is a slow Mac after four months of use. The slowness may not be as appreciable at present, but that it is definitely teding towards a lengthy starup as well as shut down is noticable. Can anybody take up this issue. I am regularly following the backup through Time machime.

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem.
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. 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 request of a stranger on a public message board. 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: Copy a line of text from this web page into the window of another application. Wait for the script to run. It usually takes a few minutes. Then paste the results, which will have been copied automatically, back into a reply on this page. The sequence is: copy, paste, wait, paste again. Details follow.
4. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode. 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.
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.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin; clear; Fb='%s\n\t(%s)\n'; Fm='\n%s\n\n%s\n'; Fr='\nRAM details\n%s\n'; Fs='\n%s: %s\n'; Fu='user %s%%, system %s%%'; PB="/usr/libexec/PlistBuddy -c Print"; A () { [[ a -eq 0 ]]; }; M () { find -L "$d" -type f | while read f; do file -b "$f" | egrep -lq XML\|exec && echo $f; done; }; Pc () { o=`grep -v '^ *#' "$2"`; l=`wc -l <<< "$o"`; [[ l -gt 25 ]] && o=`head -n25 <<< "$o"`$'\n'"[$((l-25)) more line(s)]"; Pm "$1"; }; Pm () { [[ "$o" ]] && o=`sed -E '/^ *$/d; s/^ */ /; s/[-0-9A-Fa-f]{22,}/UUID/g' <<< "$o"` && printf "$Fm" "$1" "$o"; }; Pp () { o=`$PB "$2" | awk -F'= ' \/$3'/{print $2}'`; Pm "$1"; }; Ps () { o=`echo $o`; [[ ! "$o" =~ ^0?$ ]] && printf "$Fs" "$1" "$o"; }; R () { o=; [[ r -eq 0 ]]; }; SP () { system_profiler SP${1}DataType; }; id -G | grep -qw 80; a=$?; A && sudo true; r=$?; t=`date +%s`; clear; { A || echo $'No admin access\n'; A && ! R && echo $'No root access\n'; SP Software | sed '8!d;s/^ *//'; o=`SP Hardware | awk '/Mem/{print $2}'`; o=$((o<4?o:0)); Ps "Total RAM (GB)"; o=`SP Memory | sed '1,5d;/[my].*:/d'`; [[ "$o" =~ s:\ [^O]|x([^08]||0[^2]8[^0]) ]] && printf "$Fr" "$o"; o=`SP Diagnostics | sed '5,6!d'`; [[ "$o" =~ Pass ]] || Pm "POST"; p=`SP Power`; o=`awk '/Cy/{print $NF}' <<< "$p"`; o=$((o>=300?o:0)); Ps "Battery cycles"; o=`sed -n '/Cond.*: [^N]/{s/^.*://p;}' <<< "$p"`; Ps "Battery condition"; for b in Thunderbolt USB; do o=`SP $b | sed -En '1d;/:$/{s/ *:$//;x;s/\n//p;};/^ *V.* [0N].* /{s/ 0x.... //;s/[()]//g;s/(.*: )(.*)/ $\2$/;H;};/Apple|Genesy|Intel|SMSC/{s/.//g;h;}'`; Pm $b; done; o=`pmset -g therm | sed 's/^.*C/C/'`; [[ "$o" =~ No\ th|pms ]] && o=; Pm "Thermal conditions"; o=`pmset -g sysload | grep -v :`; [[ "$o" =~ =\ [^GO] ]] || o=; Pm "System load advisory"; o=`nvram boot-args | awk '{$1=""; print}'`; Ps "boot-args"; a=(/ ""); A=(System User); for i in 0 1; do o=`cd ${a[$i]}L*/Lo*/Diag* || continue; for f in *.{cr,h,pa,s}*; do [[ -f "$f" ]] || continue; d=$(stat -f%Sc -t%F "$f"); [[ "$f" =~ h$ ]] && grep -lq "^Thread c" "$f" && e=\* || e=; echo $d ${f%%_2*} ${f##*.} "$e"; done | sort | tail`; Pm "${A[$i]} diagnostics"; done; [[ "$o" =~ \*$ ]] && printf $'\n* Code injection\n'; o=`syslog -F bsd -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|last value [1-9]|n Cause: -|NVDA\(|pagin|proc: t|SATA W|ssert|Thrott|timed? ?o' | tail -n25 | awk '/:/{$4=""; $5=""};1'`; Pm "Kernel messages"; o=`df -m / | awk 'NR==2 {print $4}'`; o=$((o<5120?o:0)); Ps "Free space (MiB)"; o=$(($(vm_stat | awk '/eo/{sub("\\.",""); print $2}')/256)); o=$((o>=1024?o:0)); Ps "Pageouts (MiB)"; s=( `sar -u 1 10 | sed '$!d'` ); [[ s[4] -lt 85 ]] && o=`printf "$Fu" ${s[1]} ${s[3]}` || o=; Ps "Total CPU usage" && { s=(`ps acrx -o comm,ruid,%cpu | sed '2!d'`); n=$((${#s[*]}-1)); c="${s[*]}"; o=${s[$n]}%; Ps "CPU usage by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; }; s=(`top -R -l1 -n1 -o prt -stats command,uid,prt | sed '$!d'`); n=$((${#s[*]}-1)); s[$n]=${s[$n]%[+-]}; c="${s[*]}"; o=$((s[$n]>=25000?s[$n]:0)); Ps "Mach ports used by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; o=`kextstat -kl | grep -v com\\.apple | cut -c53- | cut -d\< -f1`; Pm "Loaded extrinsic kernel extensions"; R && o=`sudo launchctl list | awk 'NR>1 && !/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|calendarse|cups|dove|isc|ntp|post[fg]|x)/{print $3}'`; Pm "Extrinsic daemons"; o=`launchctl list | awk 'NR>1 && !/0x|com\.apple|org\.(x|openbsd)|\.[0-9]+$/{print $3}'`; Pm "Extrinsic agents"; o=`for d in {/,}L*/Lau*; do M; done | grep -v com\.apple\.CSConfig | while read f; do ID=$($PB\ :Label "$f") || ID="No job label"; printf "$Fb" "$f" "$ID"; done`; Pm "launchd items"; o=`for d in /{S*/,}L*/Star*; do M; done`; Pm "Startup items"; o=`find -L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Compon,Ex,In,iTu,Keyb,Mail/B,P*P,Qu*T,Scripti,Sec,Servi,Spo}* -type d -name Contents -prune | while read d; do ID=$($PB\ :CFBundleIdentifier "$d/Info.plist") || ID="No bundle ID"; [[ "$ID" =~ ^com\.apple\.[^x]|Accusys|ArcMSR|ATTO|HDPro|HighPoint|driver\.stex|hp-fax|\.hpio|JMicron|microsoft\.MDI|print|SoftRAID ]] || printf "$Fb" "${d%/Contents}" "$ID"; done`; Pm "Extrinsic loadable bundles"; o=`find -L /u*/{,*/}lib -type f | while read f; do file -b "$f" | grep -qw shared && ! codesign -v "$f" && echo $f; done`; Pm "Unsigned shared libraries"; o=`for e in INSERT_LIBRARIES LIBRARY_PATH; do launchctl getenv DYLD_$e; done`; Pm "Environment"; o=`find -L {,/u*/lo*}/e*/periodic -type f -mtime -10d`; Pm "Modified periodic scripts"; o=`scutil --proxy | grep Prox`; Pm "Proxies"; o=`scutil --dns | awk '/r\[0\] /{if ($NF !~ /^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./) print $NF; exit}'`; Ps "DNS"; R && o=`sudo profiles -P | grep : | wc -l`; Ps "Profiles"; f=auto_master; [[ `md5 -q /etc/$f` =~ ^b166 ]] || Pc $f /etc/$f; for f in fstab sysctl.conf crontab launchd.conf; do Pc $f /etc/$f; done; Pc "hosts" <(grep -v 'host *$' /etc/hosts); Pc "User launchd" ~/.launchd*; R && Pc "Root crontab" <(sudo crontab -l); Pc "User crontab" <(crontab -l | sed -E 's:/Users/[^/]+/:/Users/USER/:g'); R && o=`sudo defaults read com.apple.loginwindow LoginHook`; Pm "Login hook"; Pp "Global login items" /L*/P*/loginw* Path; Pp "User login items" L*/P*/*loginit* Name; Pp "Safari extensions" L*/Saf*/*/E*.plist Bundle | sed -E 's/(\..*$|-[1-9])//g'; o=`find ~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $ | wc -l`; Ps "Restricted user files"; cd; o=`SP Fonts | egrep "Valid: N|Duplicate: Y" | wc -l`; Ps "Font problems"; o=`find L*/{Con,Pref}* -type f ! -size 0 -name *.plist | while read f; do plutil -s "$f" >&- || echo $f; done`; Pm "Bad plists"; d=(Desktop L*/Keyc*); n=(20 7); for i in 0 1; do o=`find "${d[$i]}" -type f -maxdepth 1 | wc -l`; o=$((o<=n[$i]?0:o)); Ps "${d[$i]##*/} file count"; done; o=; [[ UID -eq 0 ]] && o=root; Ps "UID"; o=$((`date +%s`-t)); Ps "Elapsed time (s)"; } 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.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste (command-V). The text you pasted should vanish immediately. If it doesn't, press the return key.
8. If you see an error message in the Terminal window such as "syntax error," enter
exec bash
and press return. Then paste the script again.
9. 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, just press return three times at the password prompt.
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.
10. The test will 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 the results. No harm will be done.
11. 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.
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.
12. When you post the results, you might see the message, "You have included content in your post that is not permitted." It means that the forum software has misidentified something in the post as a violation of the rules. If that happens, please post the test results on Pastebin, then post a link here to the page you created.
Note: 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 Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Terms of Use of Apple Support Communities ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

What is the best way to shut down an iMac that has frozen during a data transfer? The disk I was writing to will not eject. Stopping "copy items to" doesn't work either_ it is frozen as well. Is there a way to force eject the disk so I can shut down?

Some more information on the above: OS: 7.2
1. None of the shutdown commands would work so I held the power button down and received a prompt that asked if I wished to force eject the drive, I selected
the force eject and then shut down.
2. Just recently I installed an eSATA _ Thunderbolt_ port multiplier compliant PCIe card (Seritek Q6G) into a thunderbolt external chassis (OWC Helios) (seritek Q6G).
This freeze data transfer also happened when I connected a Firmtek 5PM external tower to the iMac via thunderbolt cable.
The driver for the seritek Q6G was installed in the iMac previous to connection of any of the devices.
Both external towers mount ok on the iMac but have frozen during data transfer.
The initial freeze was with the Firmtek 5PM which is (JBOD)_ I thought that might have had something to do with the freeze_ it being JBOD_ so next I tried the Mercury Elite AL Pro Q2- which is formated in RAID 5. But then froze too.
Anybody have any experience with this?
Maybe I need another driver?
Or maybe some update to my OS?
Any suggestions welcomed.
Thank you

Hello BDAqua, thanx for the suggestions. Before I saw this reply I tried to first quit the finder and then to relaunch the Finder but that resulted was a blank gray screen.
In the end I ended up having to power down the iMac.
Fortunately the RAID array that was "active" seems to be fine and also has a firewire 800 connection so I can use it_ just not with thunderbolt until this issue is solved.
I'm going to check in the Applications>Utilities>system log to see if any clues are evident_ thank you for the suggestion.
PS: Nothing of note was obvious as a root cause in the Activity Monitor though.
hmmm....I was told that the Helios and seritek card were compatable and that the Helios didn't require any drivers..it will be a drag if there isn't an easy fix for this since this new PCIe card from seritek is the first to offer port multiplier compatibility for eSATA to thunderbolt...since they are both new I'm hoping that an OS upgrade will be the fix (presently7.2)...we shall see.

My imac stops(freezes) everytime when I try to extract ipod nano. So if I quit the connection by force, it stops again. Have no choice but to shut down the imac pushing power supply button. Pls help me solve out this problems.

My imac stops everytime when I try to extract ipod nano. So if I do it by force it freezes agian. Have no choice but to shut down the computer
by pushing power button. Pleas help me solve this out!!!
It's not good to shut off the power forcibly, right? (I dun know what else I can do...)

Hi Min! I'm having exactly the same issue - have been putting up with it now for months but have finally had enough! Every single time i eject either my iphone, ipad or ipod nano, itunes freezes up, the computer becomes unresponsive. Usually i can use the mouse to highlight icons but the system doesn't respond, the keyboard doesn't work and I have to do a hard reset.
Arrrrrggggggh!!!!!!! lol
Someone please help!!!

Should i shut down my imac

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