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OCLP Field Guideoclp.dev
OCLP 2.5.1/3.0.0 RC5

Macs

iMac Pro: which macOS each year can run

Every iMac Pro from 2017 to 2017: Apple's last macOS and what OpenCore Legacy Patcher adds.

Checked against OCLP 2.5.1 and 3.0.0Updated
On this page 4 sections
  1. Every iMac Pro at a glance
  2. How the iMac Pro hardware changed, year by year
  3. Where iMac Pro owners report trouble
  4. iMac Pro 2017
YearModel identifiersApple's last macOSWith OCLP
iMac Pro 2017iMacPro1,1SequoiaNot supported (T2)

Every iMac Pro at a glance

  • Apple supported by Apple, no patcher needed
  • OCLP runs with OpenCore Legacy Patcher
  • Legacy runs with OCLP; older “legacy Metal” GPU, more patches
  • No Metal runs with OCLP; GPU without Metal, apps that need Metal fail
  • No not possible
Mac (model identifier)Catalina10.15Big Sur11Monterey12Ventura13Sonoma14Sequoia15Tahoe26Golden Gate27Our pick
iMac Pro
iMac Pro (2017)iMacPro1,1AppleAppleAppleAppleAppleAppleNoNoSequoia

How the iMac Pro hardware changed, year by year

Each line compares a year with the one before it, using the CPU, graphics, Wi-Fi and root-patch data in OCLP's source. It shows why one year behaves differently from its neighbour.

    Where iMac Pro owners report trouble

    2 issues in OCLP's tracker were filed with a iMac Pro model as the machine model. By keyword match, the topics that come up most are graphics (1). The models with the most reports: iMac Pro (2017) iMacPro1,1 (2). These are owners' reports, not confirmed bugs, and most were filed in 2021 and 2022 on early OCLP versions.

    iMac Pro 2017

    Short answer

    Apple's last macOS for the iMac Pro 2017 is macOS Sequoia. It has a T2 security chip, and OpenCore Legacy Patcher does not support T2 Macs, so newer macOS versions are not possible with OCLP. Stay on macOS Sequoia, which keeps getting Apple security updates for now.

    iMac Pro (2017)iMacPro1,1

    Model identifier
    iMacPro1,1
    Board ID
    Mac-7BA5B2D9E42DDD94
    CPU generation
    6th-gen Core (Skylake)
    Graphics
    AMD Radeon Pro Vega
    Wi-Fi
    Broadcom (T2-era)
    Last macOS from Apple
    macOS Sequoia
    T1 / T2 chip
    T2

    Best choice

    macOS Sequoia

    This Mac has a T2 security chip, which OpenCore Legacy Patcher does not support. Stay on macOS Sequoia, the newest version Apple supports on it.

    From OCLP's own documentation

    OCLP changelog entries that name this Mac, newest release first, word for word:

    • 0.4.11 Enable AppleMCEReporterDisabler whenever spoofing affected SMBIOS → ie. iMacPro1,1, MacPro6,1 and MacPro7,1
    • 0.3.0 Revert iMacPro1,1 SMBIOS usage on Mac Pros and Xserves
    • 0.3.0 Revert iMacPro1,1 SMBIOS usage on Mac Pros and Xserves → Resolves display output issues on Legacy GCN
    • 0.2.5 Set iMacPro1,1 SMBIOS for Mac Pro and Xserve models
    • 0.2.5 Set iMacPro1,1 SMBIOS for Mac Pro and Xserve models → Allows for wider array of OS support (High Sierra+)
    • 0.0.20 Set iGPU-less iMacs to iMacPro1,1
    • 0.0.20 Set iGPU-less iMacs to iMacPro1,1 → Additionally fixes Bluetooth on older iMacs with BRCM2046 modules
    What owners reported for iMacPro1,1 2 reports on GitHub

    2 issues were filed in OCLP's tracker with iMacPro1,1 as the machine model (2 closed, 0 open), filed 2020 to 2021; the newest is from 2021-04-21. The topics that come up most, by keyword match in the title and text: graphics (1). These are owners' reports, not confirmed bugs, and all of them were filed on OCLP versions from before 2024, so many describe problems that have since been fixed.

    • #160 2021-04-21 · closed · 1 comment Bad spoofing iMac 14,2 to iMacPro1,1 instead iMac15,1 and consequent issues
    • #14 2020-12-06 · closed · 3 comments iMacs / MacPro with AMD Polaris cards will need iMacPro1,1 SMBIOS

    Keep going

    Mac compatibilityEvery Intel Mac and the macOS it can run, with and without OCLPHow to installThe complete step-by-step guide for OCLP 3.0macOS TahoemacOS 26 on unsupported Macs with OCLP 3.0

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