Tuessday, March 27, 200l

As we expected, information from various sources is pouring in about how the latest Apple firmware updates disable various RAM modules and why. And now MacFixIt has posted a possible solution -- at least if you have not already upgraded your firmware. . .

Basically, the idea is to turn off your Mac's startup memory tests BEFORE you install the update, then turn the tests back on (if you wish) afterwards. This should prevent any problems with unrecognized memory. Many Mac users leave the startup memory tests permanently disabled anyway, to speed startup delays. To access this option, simply hold down the Command/option keys while opening your Memory control panel.

Information is still coming in on this problem, but it definitely appears that the RAM is not at fault. Apple uses slighty slower (and cheaper) RAM in its computers than most resellers offer, and the firmware update has a problem recognizing the faster modules! If your RAM is already lost, please note that the manufacturer may replace it. Some have said they would, some have said they wouldn't..

In any case, unless you like to gamble, we would suggest holding off on installing the Apple firmware updates until they have been, well, updated again. Your editor would be very surprised if Apple does not address this problem very quickly.