Since Apple released the latest Mac Pro on Thursday, some hardware bugs came to light requiring the company to issue the update that would improve the reliability of the system during boot.
The goal of the EFI firmware update is to address a built-in memory problem with the self-test that happens on startup. The update also improves handling of graphics power in Boot Camp, when using Windows.
The Mac Pro’s radical new design contrasts with the old chassis made of aluminum that relies for expansion on Thunderbolt connectivity and not on the PCI-express internal slots.
The update is available from Apple’s website through Software Update for Mac Pro. The patch can also be downloaded manually from Apple support page.