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#595163 - 05/19/13 07:46 PM 2011 iMac fans
Acumowchek Is this thing on? Registered: 12/29/07 Posts: 3289 Loc: Petaluma, CA	Are really bugging me. i5 27" 12GB memory. I downloaded iStat widget a while ago to monitor my fan usage, but I can't figure out what's causing them to kick in. Hard drive fan goes up to 3880+ and the top gets really hot. I have a theory (don't laugh). It only seems to happen when I have Facebook open in Safari. I've reset PRAM and SMU to no avail. The thing is, I can be using Photoshop, Illustrator, burning DVDs, etc. and it doesn't happen. Too many tabs open in Safari? I dunno…
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#595230 - 05/20/13 06:19 PM Re: 2011 iMac fans [Re: Acumowchek]
Acumowchek Is this thing on? Registered: 12/29/07 Posts: 3289 Loc: Petaluma, CA	Well, so, okay, how about this then? I have 3 external hard drives connected to the iMac. 2 USB, 1 Firewire. One for music, one for movies, one for business files/Time Machine. Could that be causing the internal HD to get hotter? Should I eject them when not in use?
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#595231 - 05/20/13 06:33 PM Re: 2011 iMac fans [Re: Acumowchek]
Jim_ aka Reboot Registered: 04/21/02 Posts: 13592 Loc: Columbus OH	Launch Activity Monitor. In the Activity Monitor window, look at All Processes, sort by CPU%. At the bottom click the Disk Activity tab, watch the Data written stats. Look for major usage in either one. _________________________ AppleCentral Trivia MM-MCF Trivia Call the Doctor
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#595235 - 05/20/13 06:53 PM Re: 2011 iMac fans [Re: Jim_]
Acumowchek Is this thing on? Registered: 12/29/07 Posts: 3289 Loc: Petaluma, CA	All Processes? I've always looked at the Real memory column. Kernal task: 670MB. Safari Web Content:508MB Safari: 320MB They are always at the top memory usage. I knew Safari Web Content was evil, but I thought I would be okay with 12GB ram. Edit: mds Virtual memory is 1.1GB. Edited by Acumowchek (05/20/13 06:54 PM)
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#595236 - 05/20/13 07:08 PM Re: 2011 iMac fans [Re: Acumowchek]
Jim_ aka Reboot Registered: 04/21/02 Posts: 13592 Loc: Columbus OH	None of that matters, we need to look at CPU% and Disk Activity since you say it's your HD fan that is ramping up. All Process is chosen next to the Filter window BTW. _________________________ AppleCentral Trivia MM-MCF Trivia Call the Doctor
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#595243 - 05/20/13 07:49 PM Re: 2011 iMac fans [Re: Jim_]
Acumowchek Is this thing on? Registered: 12/29/07 Posts: 3289 Loc: Petaluma, CA	All Processes, got it. Had it set on My Processes. Data written is 2.35GB, but the fans are not spinning right now. Will check when they do. Could it be that during the day, it's 80º + in my house? It gets way hotter than that here, and I never used to experience this with "normal" usage.
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#595309 - 05/21/13 07:01 PM Re: 2011 iMac fans [Re: Acumowchek]
Acumowchek Is this thing on? Registered: 12/29/07 Posts: 3289 Loc: Petaluma, CA	Read in:108344 Read Out: 403056 Data Read: 4.94GB Data Written: 12.20GB Whatever that means… It is not hot today, but the fans have kicked in…
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#595312 - 05/21/13 07:21 PM Re: 2011 iMac fans [Re: Acumowchek]
Jim_ aka Reboot Registered: 04/21/02 Posts: 13592 Loc: Columbus OH	Data Written/sec CPU% At the time the fans are going fast. All the other numbers you gave are just total stats since the last reboot, or maybe log out, I forget, but Data Written/sec and CPU% are current draws. _________________________ AppleCentral Trivia MM-MCF Trivia Call the Doctor
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#596522 - 06/15/13 01:56 PM Re: 2011 iMac fans [Re: Jim_]
Acumowchek Is this thing on? Registered: 12/29/07 Posts: 3289 Loc: Petaluma, CA	Figured it out! The intake holes on the bottom of the iMac were clogged with dust. I wish there was an easier way to unclog them besides wiping down and using compressed air. Feel like I'm shoving more dust into the machine.
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#596539 - 06/15/13 06:14 PM Re: 2011 iMac fans [Re: Acumowchek]
Jim_ aka Reboot Registered: 04/21/02 Posts: 13592 Loc: Columbus OH	LOL. And I thought with all my cats that my office was the epi-tome of fuzz and dust. Thanks for the follow up, I was wondering if it just went away or something. _________________________ AppleCentral Trivia MM-MCF Trivia Call the Doctor
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