Robert Gulyas wrote:
Guys/Gals:
Owners of these Mac Laptop units, who have had 3rd Party SATA // 7200 RPM HDs installed, had issues with the computer not restarting or having constant "beach balling" issues after updating the Firmware to EFI 1.7 from the previous EFI 1.6 version which came installed with the laptop. There are 116 pages of discussion the Apple Forum involving these issues.
Apple finally released a "roll back" of EFI Firmware 1.7 to EFI 1.6 Firmware in order to allow the use of these 3rd party faster HDs--but at less than full performance.
I was limping around OK with this modification but I could not use my 500 GB SATA // HD to its fullest capacity.
Just last week Apple issued a *Performance Update 1.0* package to resolves this issue.
Robert, I'm glad the issue you had appears to be gone, but JoeyR is right... if you were "limping around" under EFI 1.6 with a traditional hard drive, it wasn't due to the SATA I limitation.
Also, to be clear, Apple has never officially said that Performance Update 1.0 was intended to resolve any EFI 1.7 related issues. In fact, all signs point to the exact opposite: it's a OS patch (while the EFI 1.7 problems have been OS-independent), the list of affected machines consists of 15 models ranging from 2009 iMacs and Mac Minis to 2008 MacBook Airs (while EFI 1.7 is strictly limited to mid-2009 13" and 15" MacBook Pros), etc.