27-inch iMac EFI FW Update
Solves issues for quad-core Intel Core i5 and Core i7 processors 27-inch iMacs.
DOWNLOAD
Free
27-inch iMac EFI FW Update is recommended for all quad-core Intel Core i5 and Core i7 processors 27-inch iMacs.
The app solves an issue that sometimes caused high processor utilization while playing audio through the headphone output mini-jack. In addition, it solves an issue that prevented the display backlight from turning on after powering on the iMac.
DOWNLOAD
Free