Where is firmware upgrade 4,1 -> 5,1

Discussion in 'Mac Pro' started by macmesser, Aug 27, 2012.

  1. macrumors 6502

    Aug 13, 2012
    Where can the software for flashing 4,1to 5,1 be found? I have heard that there is a utility which will flash 4,1 to 5,1 or restore 4,1 from 5,1.

    Thanks for any insights.
  2. macrumors newbie


    Aug 24, 2012

    You have to register to see it, it's an attachment on the first post.
  3. thread starter macrumors 6502

    Aug 13, 2012
  4. macrumors newbie

    Nov 28, 2012
    Hey I'm brand new here. Did you have any luck? I tried registering on that other site and every time I try to find that EFI firmware update the site just hangs up and I never get connected through. Would anyone be willing to email the "app" to me directly.

    I just purchased on ebay a 2009 Nehalem Mac Pro and would love to do the hex core update.

    Question 1. - if I buy the 1333 mhz ram from OWC will that run ok given at a lower speed in the 2009 Mac Pro up until I get the EFI Firmware update and upgrade the chip?

    Question 2. - Also can you do the firmware upgrade to allow just for the faster ram but still run the original 2.66 ghz quad core for a while until I get the $$$ for the hex core?
  5. macrumors 6502

    Sep 14, 2004
    Yes & No

    1: Yes

    2: No, the processor in use will determine the ram speed.
  6. macrumors 6502

    Jan 17, 2012
    Just checked Netkas earlier today... the EFI Update is still there, at the link provided by langer. I did the upgrade 2009 Quad > 2010 Hex a month or two back. Works great.
  7. macrumors newbie

    Nov 28, 2012
    This site is GREAT! Thanks for answering those questions so quickly. I did just try the site and today it worked for me. Just registered a new name on forum and activated and BOOM got it. I'll keep you posted - I may have a few questions on the install procedure but I'll do my homework first of course.

    Thanks everyone.

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