Hard Disk Drive

The PowerBook G4 computer has an internal hard disk drive with a storage capacity of 40 or 60 GB. The drive has fluid dynamic bearings for quieter operation. The drive uses the Ultra DMA IDE (integrated drive electronics) interface and is ATA-5 compatible. Current Data Transfer Mode for the drive is UDMA-66.

The software that supports the internal hard disk is the same as that in previous models with internal IDE drives and includes DMA support. For the latest information about that software, see Technical Note TN1098, ATA Device Software Guide Additions and Corrections. The web page for Technical Note TN1098 includes a link to a downloadable copy of ATA Device Software Guide.

To obtain the reference documents listed here, see the reference links at "ATA Devices" (page 84).

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