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  1. #16
    Want to install Snow Leopard, but three beeps
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
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    5,244
    Your Mac's Specs
    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
    Thanks, Dennis.

    Sly, memtest won't run for me. I even tried booting in Safe Mode and using the command line, but it doesn't see memtest in the Applications folder. Not sure why, it's definitely there. I need to see if I can think up some trick to get it to run. It's been a while since I worked with a Unix command line, but it's like riding a bicycle, right?
    Jake

  2. #17
    Want to install Snow Leopard, but three beeps
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    29,627
    Your Mac's Specs
    iMac late 2012 21.5 i5 10:14. iMac 2010 27"QuadI7 OS10.13, MBPLate2011, iPad Pro10.5", iPhone5s,
    I will try it but my Late 2011 came with Lion so I doubt it will run Snow Leopard. Will try anyway.

  3. #18
    Want to install Snow Leopard, but three beeps
    Slydude's Avatar
    Member Since
    Nov 16, 2009
    Location
    North Louisiana, USA
    Posts
    13,688
    Your Mac's Specs
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone XS, 2015 iMac 16 GB 10.14.1 beta
    Quote Originally Posted by MacInWin View Post
    It's been a while since I worked with a Unix command line, but it's like riding a bicycle, right?
    Haven't been on a bike since I was a kid. IITC the result was a head wound and a few stitchers. Surely your command line knowledge is better than my biking skills. LOL.
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  4. #19
    Want to install Snow Leopard, but three beeps
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    5,651
    Your Mac's Specs
    L2014 Mac mini macOS Mojave, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Quote Originally Posted by dtravis7 View Post
    I will try it but my Late 2011 came with Lion so I doubt it will run Snow Leopard. Will try anyway.
    The Late 2011, was similar to the Early 2011, that it will run Snow Leopard. However, if there was a firmware update for the 2010, there may have been one for the 2011 models also. So, it may not work, if you’ve already upgraded to High Sierra.

    When I got my Late 2011 MBP off eBay, it had Snow Leopard installed. So I know it will work, but this was back in May 2012.


    Sent from my iPad using Mac-Forums
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  5. #20
    Want to install Snow Leopard, but three beeps
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    5,651
    Your Mac's Specs
    L2014 Mac mini macOS Mojave, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Do you have another drive you can put in the MBP to test? Even if it is a bare drive?


    Sent from my iPad using Mac-Forums
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  6. #21
    Want to install Snow Leopard, but three beeps
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
    Posts
    5,244
    Your Mac's Specs
    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
    I got memtest to run, it's running now. Set it to run three full tests, may take a while. I'll report back, but I'm beginning to think it isn't the memory but the firmware, which is a bummer.
    Jake

  7. #22
    Want to install Snow Leopard, but three beeps
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    29,627
    Your Mac's Specs
    iMac late 2012 21.5 i5 10:14. iMac 2010 27"QuadI7 OS10.13, MBPLate2011, iPad Pro10.5", iPhone5s,
    Bob I checked Everymac and it and Apple say minimum OS for the late 2011 is 10.7.3 Lion. I tried the SL DVD and got a kernel panic. First panic that machine ever got.

  8. #23
    Want to install Snow Leopard, but three beeps
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    5,651
    Your Mac's Specs
    L2014 Mac mini macOS Mojave, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Quote Originally Posted by dtravis7 View Post
    Bob I checked Everymac and it and Apple say minimum OS for the late 2011 is 10.7.3 Lion. I tried the SL DVD and got a kernel panic. First panic that machine ever got.
    I know that EveryMac says that, I also know what was on my MBP when I got it. As I said, this was back in 2012. Apple may have issued a firmware upgrade for that year MBP.


    Sent from my iPad using Mac-Forums
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  9. #24
    Want to install Snow Leopard, but three beeps
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
    Posts
    5,244
    Your Mac's Specs
    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
    I've given up on it. Memtest finds no memory error, so the three beeps is in error. All I can think is the firmware. Not worth chasing it any more. The software I want to run will also run in an older version of Windows, I may look for WinXP SP3 somewhere to install in the MBP. It's not being used for much anymore, so I can do that.

    Thanks for trying.
    Jake

  10. #25
    Want to install Snow Leopard, but three beeps
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    29,627
    Your Mac's Specs
    iMac late 2012 21.5 i5 10:14. iMac 2010 27"QuadI7 OS10.13, MBPLate2011, iPad Pro10.5", iPhone5s,
    It has to be a Firmware update then. Like I told Bob my late 2011 gets a KP trying to boot up with SL DVD. I am sure I saw at least 2 Firmware updates install, one with Sierra and the other with High Sierra. Usually those updates have a really thick progress bar which I have seen at least 2 times then it rebooted and finished the Mac OS install.

    I am sure Bob is correct.

    For the fun of it I tried the SL DVD on my 2008 iMac which has El Capitan on it and it booted just fine.

  11. #26
    Want to install Snow Leopard, but three beeps
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
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    57,052
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, Mojave
    Dennis:

    Keep in mind that Jake had that Logic Board swapped out when the GPU failed. Very likely the newer Logic Board already had the updated firmware installed so there's probably no way that machine will be able to run Snow Leopard. I suspected that when Jake said he heard 3 beeps but the memory was okay. Firmware errors sometime act like memory errors and can cause beeping.

  12. #27
    Want to install Snow Leopard, but three beeps
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
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    29,627
    Your Mac's Specs
    iMac late 2012 21.5 i5 10:14. iMac 2010 27"QuadI7 OS10.13, MBPLate2011, iPad Pro10.5", iPhone5s,
    Quote Originally Posted by chscag View Post
    Dennis:

    Keep in mind that Jake had that Logic Board swapped out when the GPU failed. Very likely the newer Logic Board already had the updated firmware installed so there's probably no way that machine will be able to run Snow Leopard. I suspected that when Jake said he heard 3 beeps but the memory was okay. Firmware errors sometime act like memory errors and can cause beeping.

    I agree completely.

    I was just posting all my findings. I also though when I got my MBP it had SL on it so was shocked when EveryMac said Lion. Like I said above I saw the firmware getting updates on my MBP so that is probably why SL no longer will load.
    Last edited by dtravis7; 01-06-2019 at 12:21 AM.

  13. #28
    Want to install Snow Leopard, but three beeps
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
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    25,061
    Your Mac's Specs
    iMac, i7 4GHz, 32GB memory, 1TB Blade, OS X.14.2 Mojave,
    Jake maybe this will help, particularly the last entry about isolating modules with styrofoam or some such. Good luck:-


    https://www.ifixit.com/Answers/View/...+beeps+problem!
    Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  14. #29
    Want to install Snow Leopard, but three beeps
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
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    5,244
    Your Mac's Specs
    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
    Thanks Harry, but my logic board was replaced by Apple for the GPU issue already. And I don't get the beeps on booting High Sierra from the internal drive, just when trying to boot the Snow Leopard install disk. And the memory passed memtest run three times and the Apple Hardware Test, so it's not memory. I have no video glitches and the machine runs just fine, except for not booting the SL installation disk. As Dennis and Charlie have said, it is most likely a firmware upgrade that is now blocking SL from booting. The three beeps are just wrongly indicating a problem in the boot.

    I did try running with one memory module, in both slots, but got no boot from that. No beeps, but no boot, either. I think I've eliminated the memory as the issue, which only leaves the firmware.
    Jake

  15. #30
    Want to install Snow Leopard, but three beeps
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    40,176
    Your Mac's Specs
    2011 17" MBP 2.2ghz, 16gig ram, OS 10.11.6
    That logic board replacement defintiely throws an uncommon wrinkle into things. I'm curious to see what happens with my Early 2011 17" MacBook Pro running Sierra...will attempt booting from my Snow Leopard install disk later today...and post the results.

    As an unrelated side note. 4 of the keys on my 2011 17" MacBook Pro have basically stopped working (maybe from typing too many Mac-Forums posts)! And soon I'll be replacing the topcase with a replacement I received & hopefully get all keys working again. Maybe today will be experiment with & fix 17" 2011 MacBook Pro day for me. Lol

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

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