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should i worry ?..

314 Views 4 Replies Latest reply: Mar 9, 2012 12:27 PM by nuno1959 RSS
nuno1959 Level 1 Level 1 (25 points)
Currently Being Moderated
Mar 9, 2012 11:16 AM

Hi guys


earlier today i ran TechTool Pro 6 to check a few things & this came up after checking the S.M.A.R.T status of my MacintoshHD


Screen Shot 2012-03-09 at 6.54.39 PM.png


  should i worry about that Temperature Changes (190) big red FAIL indication, Seek Error Rate (7) & the Hardware ECC Recovered (195) ?


   any idea what causes that big fail or the other two ''near fails'' ? anything one can do or...just knosck on wood ?


  thanks guys

2009 27'' iMac i7, 16GB Ram , Mac OS X (10.7), 2 X 1TB + 2 X 2TB W.Digital USB
  • John Galt Level 7 Level 7 (33,045 points)
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    Mar 9, 2012 11:22 AM (in response to nuno1959)

    I would run Apple Hardware Test:


    If you have a backup - Time Machine or the equivalent (your Western Digital USB appears to be your backup disk) then I would not worry, not a bit.


    Even if your internal drive were to fail catastrophically, having a backup will make recovery a trivial event.


    Goes without saying though, make sure your backup disk is OK!

  • John Galt Level 7 Level 7 (33,045 points)
    Currently Being Moderated
    Mar 9, 2012 11:48 AM (in response to nuno1959)

    My iMacs have the i7 CPU like yours. I have actually tried to make them overheat by running Geekbench stress tests. The temperatures will rise to about 60 to 65°C and stabilize around there, and I never hear the fans run, even after hours of continuously running the stress tests. The iMac gets a little warmer but not much.


    This concerned me at first, since I thought perhaps the temperature sensors or the fans were not working properly, so I ran Apple Hardware Test. In fact the AHT exercises the fans and they can get quite loud.


    So I conclude the i7 CPU is very effectively cooled in these Macs and / or it is just a very efficient processor.


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