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Apple Computing Products:
macOS - Desktop Hardware
Radeon RX 560 in flashed late 2009 Mac Pro running Monterey goes past apple screen then nothing
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<blockquote data-quote="Macsolver" data-source="post: 1942497" data-attributes="member: 381451"><p>Hi,</p><p></p><p>Had a play around with a Mac Pro 5.1, Monterey and various GPUs. What you describe is the expected behavior when swopping GPUs without updating the OpenCoreLegacy patches with the new GPU in place. Boot using a High Sierra disk (supports NVMEs) with the OPCL application and the new GPU installed. Update both the EFI and boot patches on the Monterey boot disk. Reboot when suggested by the OCLP application. If it boots into HS, next boot select the Monterey EFI partition if possible or start with just the Monterey boot disk installed for the first time. When booted into Monterey, you can re run the OCLP patches again and it will clear the caches so it boots into the Monterey boot disk thereafter.</p></blockquote><p></p>
[QUOTE="Macsolver, post: 1942497, member: 381451"] Hi, Had a play around with a Mac Pro 5.1, Monterey and various GPUs. What you describe is the expected behavior when swopping GPUs without updating the OpenCoreLegacy patches with the new GPU in place. Boot using a High Sierra disk (supports NVMEs) with the OPCL application and the new GPU installed. Update both the EFI and boot patches on the Monterey boot disk. Reboot when suggested by the OCLP application. If it boots into HS, next boot select the Monterey EFI partition if possible or start with just the Monterey boot disk installed for the first time. When booted into Monterey, you can re run the OCLP patches again and it will clear the caches so it boots into the Monterey boot disk thereafter. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Radeon RX 560 in flashed late 2009 Mac Pro running Monterey goes past apple screen then nothing
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