2009 Quad upgrade to 2010 Hex while booting from ARC-1882

Discussion in 'Mac Pro' started by mluters, Jan 29, 2012.

  1. mluters macrumors member

    Jan 25, 2010
    I currently have a 2009 Quad 3.33 that I want to upgrade to a 2010 Hex 3.33. I also use an Areca ARC-1882 IX-12 raid card to boot from a stripped RAID 0 and also have a 8TB raid 5 attached to the ARC-1882.

    Here is my question...is my EFI upgrade going to work while booting from the Raid card or do I need to flash to EFI 5.1 using a regular sata hard drive connected directly to the back plane of my MP? I know once the MP is on 5.1, the MP should boot just fine with the ARC-1882 because I have read about other people using Areca cards after upgrading. I just don't know if I can upgrade the EFI to 5.1 with the 3rd party raid card installed and booting from it? Or...do I just boot from an extra USB external hard drive and upgrade to EFI 5.1 from that?

    Any help before I upgrade would be greatly appreciated because I really don't want to mess up my Raid setup.

    Thanks in advance
  2. wa5655 macrumors member

    Jun 12, 2010
    You need to upgrade your MP firmware from a drive connected to the backplane or it won't work properly. After that, you can boot from your Areca.
  3. mluters thread starter macrumors member

    Jan 25, 2010
    I followed your advice and booted from a spare hard drive connected to the backplane and then upgraded to EFI 5.1. It worked great and now I've booted from the ARC-1882 card without any problems....I'll be dropping a 6 core 3.33 in the next few days to complete the upgrade. Thanks
  4. mluters thread starter macrumors member

    Jan 25, 2010
    I finished my upgrade today by dropping in a intel W3690 hex 3.46ghz CPU. Everything seems to be working fine and now I've extended the life of my 2009 MP for at least a couple more years.

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