instal the last version for mac Conglomerate 451

To continue with the Mac Pro firmware update first read the instructions, then click the Shut Down button at the bottom of the firmware update window. The firmware update will open before the OS installation begins. It will be located in your Applications folder and is called Install macOS High Sierra.app. You can also open the installer at a later date. When the download has finished click Open. Click the ‘Get’ / ‘Download’ button and wait for the download to complete. The App Store will open to the macOS High Sierra page. If you see this page in your browser, make sure App Store is highlighted and click on ‘Open Link’. Use this link to open the download page in the App Store: To complete Step 1 you will need to have an Apple OEM or Mac graphics card installed.ĭownload the Mac OS X High Sierra installer from the App Store. Use Time Machine or the software of your choice to make a complete backup to ensure you can restore your system in the event of a problem. It is always recommended that you create a backup of your OS and files before you attempt any update. If you do not have a Metal graphics card that is necessary for Step 2, you can complete Step 1, and complete Step 2 at a later date.

A Metal capable graphics card is required for Step 2. If you do not have either of these versions then you should start with Step 1.Īn Apple OEM or Mac graphics card is required for Step 1. If your Boot ROM version is 138.0.0.0.0 or higher, or 00 your Mac Pro has already been upgraded to the highest version that is available from the OS X High Sierra installer and you should start with Step 2.

To find your current version, click on the Apple at the top left of the screen and select About This Mac.įrom the Overview window click on System ReportĬheck which Boot ROM version you currently have.

If you have a metal graphics card and want to upgrade to macOS Mojave, or just enable your Mac Pro to install and boot from High Sierra or later on a PCIe NVME drive, Boot ROM version 144.0.0.0.0 is required.ĭepending on which versions of OS X you have previously installed on your Mac Pro will determine which Boot ROM Version you currently have. The process is the same for 2009 MacPro4,1 models that have been flashed to 5,1. This guide explains the simple process for updating to the latest firmware version for all 20 MacPro5,1 models.

Instal the last version for mac Conglomerate 451