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I formatted my hard driver and reinstalled ML. I'd like to know whether I need to reinstall the latest SMC update or that once I install it is saved forever on the system.

I think that I don't need to reinstall it, because power sleep is enabled, and if I'm not mistaken it updates this feature, am I wrong?

In other words: Can I check which SMC I'm using?

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Yes. To check which SMC you're using just:

  1. From the Apple () menu, choose About This Mac.
  2. Click More Info.
  3. Click System Report.
  4. Open the Hardware section to reveal Model Identifier, Boot ROM version, and SMC version numbers.

Just so that you know, if you are unsure whether your computer needs a particular update, simply download and open the update installer. The installer will alert you if the firmware update is already installed or not needed.

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  • Thanks for the info! what is the latest SMC update of the rMBP?
    – Anonymous
    Commented Jul 30, 2012 at 11:16
  • The one you link to in your question. :)
    – Thecafremo
    Commented Jul 30, 2012 at 11:40
  • I meant which value should it have in system report :)
    – Anonymous
    Commented Jul 30, 2012 at 12:17
  • OK, found the number, it's 2.3f32 (SMC 1.0)(support.apple.com/kb/HT1237)
    – Anonymous
    Commented Jul 30, 2012 at 12:59
  • Doh! I couldn't find the rMBP in that list!
    – Thecafremo
    Commented Jul 30, 2012 at 13:05

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