Software 42300 Published by

iMac EFI Firmware Update 1.4 has been released



This update fixes intermittent system freeze issues for iMac computers with ATI Radeon HD 4850 graphics and fixes wake-from-sleep issues in Boot Camp.

To complete the firmware update process, please follow the instructions in the updater application (/Applications/Utilities/iMac EFI Firmware Update.app). The updater will launch automatically when the Installer closes.

After the firmware is successfully applied to your Mac, your Boot ROM Version will be:amp;#8232;
IM91.008D.B08

System Requirements
Mac OS X 10.5.6 or later


License: Update
Requires: OSX 10.4+
Size: 1.7Mb
Download