2009–>2010 CPU upgrade. Along w backplane swap.

Discussion in 'Mac Pro' started by Jackp311, May 14, 2018.

  1. Jackp311 macrumors newbie

    May 14, 2018

    I’ve been reading the bonkers out of this forum in preparation to upgrade my Mac Pro.

    I know if I put a 5.1 dual cpu system in my 4.1 (2009) I will have fan issues.

    Question is can I swap a 5.1 logic board in, as well? And eliminate this issue.

    Will the 5.1 logic (backplane) board eliminate the need to upgrade 4.1–>5.1 EFI?
  2. h9826790 macrumors G4


    Apr 3, 2014
    Hong Kong
    If you swap BOTH logic board and CPU tray, that will be OK, and no flash required.

    But usually buy a complete 5,1 is cheaper and easier.
  3. ActionableMango macrumors G3


    Sep 21, 2010
    Have you looked at the prices of these parts? Doing so will be very, very expensive.

    I agree with h9826790. You are much better off buying a dual 4,1 or dual 5,1 and selling the 4,1.
  4. Jackp311 thread starter macrumors newbie

    May 14, 2018
    I was actually able to secure both pieces for a total of 450 from ebay - the tray has two X5675's in it - so a good ways towards the top end - when I calculate in some savings I will get from a promo they had, I am in for about 380 for all of it. A single X5675 is $50 (bare)

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