How to check for updates to firmware and Boot ROM.

Hi, Bob1177, the only way to check to see if your firmware and boot Rom are up to date would be to install Mojave, which will require you do a firmware Update to install it, which includes, when prompted, holding down your Power button when you hear a long tone. If you need it, you will see a message on the screen. If you have already done that, then your firmware update is up to date. My Boot room is the same as yours so it's up to date. Just to let you know, your Mac Pro can go up to High Sierra or Mojave officially.

There is another way to do it, but we're not allowed to discuss it on these forums as it's not approved by Apple

john B

There is a section of Greg Grant's excellent compendium on the 2006-2012 silver tower Mac Pro blog on firmware:

http://blog.greggant.com/posts/2018/05/07/definitive-mac-pro-upgrade-guide.html

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