updated 09:15 am EDT, Fri September 11, 2009
iMac update targets ATI video card problems
Apple has posted two new firmware updates, addressing separate pieces of hardware. The iMac Graphics FW Update 1.0.2 fixes stability problems on iMacs running an ATI Radeon HD 2600 Pro video card, or else the Radeon HD 2400 XT. Systems must also be operating on Mac OS X 10.5.2 or later.
The Apple RAID Card Firmware Update corrects a larger number of issues, including poor reliability during boot and power fail recovery. Also fixed is a bug in rebuilding a degraded RAID 5 configuration, and another that can lead to filling up the flash file system. Separately, battery handling and reporting is said to be improved.
The RAID firmware is a 26MB download, and requires Mac OS X 10.5.8. It is suggested for all Apple RAID-equipped Mac Pro and Xserve systems from late 2006 or early 2008.