Whoo hoo!
Updated my Mid2010 (modelID MacPro5,1) from Sierra (10.12.6) to High Sierra (10.13.6) to Mojave (10.14.1)
Before I started the upgrade I removed the MSI RX 580 and replaced it w the original ATI Radeon 5770. During the swap I pushed the SMC reset button.
The System specs at the time I started the upgrade to High Sierra:
Mid 2010 Mac Pro 5.1 Dual 3.46 X5690 64GB Ram Boot ROM Version: MP51.007F.B03
Slot 1 (Apple ATI Radeon 5770 1 GB ZML MC742ZM/A) Connected via DVI-D to Dell UltraSharp U2412M and a Wacom Cintiq 22HD via HDMI
Slot 2 OWC Accelsior S w 1 TB WD Blue Boot Drive, w 10.12.6 installed. (OWC Accelsior S PCIe) + (WD Blue 1TB Internal SSD Solid State Drive - SATA)
Slot 3 Ableconn PU31-1A1C USB 3.1 Gen 2 w USB C (Ableconn PU31-1A1C USB 3.1 Gen 2 (10 Gbps) Type-C)
STEP #1 I downloaded the Full High Sierra Installer (5.24GB) and the Mojave Installer (6.01GB)
STEP #2 Upgrade the boot ROM to MP51.0089.B00. and then reboot to confirm the ROM update
STEP #3 Upgrade to 10.13.6 using the "Install macOS HighSierra.app"
STEP #4 Shut down and remove the ATI 5770, PUSH the SMC reset button, and install MSI RX 580.
The System specs at the time I started the upgrade to Mojave:
Mid 2010 Mac Pro 5.1 Dual 3.46 X5690 64GB Ram Boot ROM Version: MP51.0089.B00
Slot 1 MSI RX 580 (MSI Radeon RX 580 DirectX 12 RX 580 GAMING X 8G 8GB) Connected via DVI-D to Dell UltraSharp U2412M and a Wacom Cintiq 22HD via HDMI
Slot 2 OWC Accelsior S w 1 TB WD Blue Boot Drive, w 10.12.6 installed. (OWC Accelsior S PCIe) + (WD Blue 1TB Internal SSD Solid State Drive - SATA)
Slot 3 Ableconn PU31-1A1C USB 3.1 Gen 2 w USB C (Ableconn PU31-1A1C USB 3.1 Gen 2 (10 Gbps) Type-C)
STEP #5 Upgrade to Mojave using the "Install macOS Mojave.app"
NOTE: I left BOTH displays connected on via DVI-D the other HDMI. If you get a black screen upon boot w Mojave, it is possible that by unplugging the DVI-D cable (when running) will help the HDMI connected monitor to display. I had no issues during the install, it took longer than High Sierra to install. After the install I wanted to boot into recovery mode and did have a black screen issue, by unplugging DVI_D I was able to display in RM.
Boot ROM Version : 140.0.0.0.0
FYI: In Mac 10.12.6 the MSI Radeon RX 580 was exactly identified. In Sierra 10.14.1, it is exactly identified as "Radeon RX 580 8192 MB"
Updated my Mid2010 (modelID MacPro5,1) from Sierra (10.12.6) to High Sierra (10.13.6) to Mojave (10.14.1)
Before I started the upgrade I removed the MSI RX 580 and replaced it w the original ATI Radeon 5770. During the swap I pushed the SMC reset button.
The System specs at the time I started the upgrade to High Sierra:
Mid 2010 Mac Pro 5.1 Dual 3.46 X5690 64GB Ram Boot ROM Version: MP51.007F.B03
Slot 1 (Apple ATI Radeon 5770 1 GB ZML MC742ZM/A) Connected via DVI-D to Dell UltraSharp U2412M and a Wacom Cintiq 22HD via HDMI
Slot 2 OWC Accelsior S w 1 TB WD Blue Boot Drive, w 10.12.6 installed. (OWC Accelsior S PCIe) + (WD Blue 1TB Internal SSD Solid State Drive - SATA)
Slot 3 Ableconn PU31-1A1C USB 3.1 Gen 2 w USB C (Ableconn PU31-1A1C USB 3.1 Gen 2 (10 Gbps) Type-C)
STEP #1 I downloaded the Full High Sierra Installer (5.24GB) and the Mojave Installer (6.01GB)
STEP #2 Upgrade the boot ROM to MP51.0089.B00. and then reboot to confirm the ROM update
STEP #3 Upgrade to 10.13.6 using the "Install macOS HighSierra.app"
STEP #4 Shut down and remove the ATI 5770, PUSH the SMC reset button, and install MSI RX 580.
The System specs at the time I started the upgrade to Mojave:
Mid 2010 Mac Pro 5.1 Dual 3.46 X5690 64GB Ram Boot ROM Version: MP51.0089.B00
Slot 1 MSI RX 580 (MSI Radeon RX 580 DirectX 12 RX 580 GAMING X 8G 8GB) Connected via DVI-D to Dell UltraSharp U2412M and a Wacom Cintiq 22HD via HDMI
Slot 2 OWC Accelsior S w 1 TB WD Blue Boot Drive, w 10.12.6 installed. (OWC Accelsior S PCIe) + (WD Blue 1TB Internal SSD Solid State Drive - SATA)
Slot 3 Ableconn PU31-1A1C USB 3.1 Gen 2 w USB C (Ableconn PU31-1A1C USB 3.1 Gen 2 (10 Gbps) Type-C)
STEP #5 Upgrade to Mojave using the "Install macOS Mojave.app"
NOTE: I left BOTH displays connected on via DVI-D the other HDMI. If you get a black screen upon boot w Mojave, it is possible that by unplugging the DVI-D cable (when running) will help the HDMI connected monitor to display. I had no issues during the install, it took longer than High Sierra to install. After the install I wanted to boot into recovery mode and did have a black screen issue, by unplugging DVI_D I was able to display in RM.
Boot ROM Version : 140.0.0.0.0
FYI: In Mac 10.12.6 the MSI Radeon RX 580 was exactly identified. In Sierra 10.14.1, it is exactly identified as "Radeon RX 580 8192 MB"
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