Installing Ram in Mac Pro

Discussion in 'Mac Basics and Help' started by LJ Morelli, Nov 26, 2008.

  1. LJ Morelli macrumors newbie

    Sep 18, 2008
    Just installed two 2 gb chips to add to the existing 2gb that's already in the machine. The new ram isn't showing up. Is there a procedure for the tower to recognize these new items? Thanks.
  2. MarkMS macrumors 6502a

    Aug 30, 2006
    No, just make sure the memory is properly installed. If it clicked it and you're sure it's put in correctly, make sure the RAM isn't bad.

    Also, make sure this is the proper RAM for the machine.
  3. cpjakes macrumors 6502

    Aug 15, 2003
    Buffalo, NY
    I'm assuming it's a new Mac Pro 8-core? If so, you need to do it in pairs. So you had one chip each on the upper and lower card. Move one chip to the next slot in the bottom card and put the new chips in the original and second slot on the top card.

    Check out pages 43 & 44 of this PDF:


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