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Use newer 2.5" SATA disks in a MacBook or Mac mini
Authored by: Shawn Parr on Feb 25, '08 08:18:26AM

Yes, the jumper forces the drive to use the slower SATA transfer specifications rather than the newer faster ones. This doesn't change the characteristics of the drive mechanism itself, only the speed of communication from the drive to the computer. This should only slow the drive down when it is bursting information from or to its cache, as the platters/heads can't get information fast enough to saturate the older SATA, much less the newer one.

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