Apple Setting Up Your Power Macintosh G4 (PCI & AGP) - Manual (Page 29)

Working Inside the Computer 29
Note: SCSI drives also require a SCSI PCI card to function.
Drives must also meet these width and depth specifications:
m Width: 3.9 inches (102 mm)
m Depth: 5.7 inches (147 mm)
The computer provides support for the following types of internal hard disk drives:
m ATA drives (includes ATA, ATA-2, and ATA-3 devices, which are also called IDE or EIDE
devices)
m Ultra ATA drives (sometimes called ATA-4 devices)
m SCSI drives (requires the purchase and installation of a SCSI PCI card)
m ATAPI drives, including CD-ROM, DVD-ROM, DVD-RAM, and Zip drives
For more information about devices supported, see your Apple-authorized dealer and the
support section of Apple’s Web site: www.apple.com/support/
About the Computer’s Installed Drive and Additional Drives
Standard Macintosh configurations include an internal Ultra ATA hard disk. You can install an
additional ATA drive or SCSI drives. If you are installing SCSI drives, you must install a SCSI
PCI card to support the drive.
The accessory kit that came with your computer has a bag with four low-profile screws used
exclusively for installing drives in the lower portion of drive position 3. For more information
about using these screws, see step 5 in the section “Installing an Internal Storage Device,”
which begins on page 39.
Ultra ATA Drives
Your Macintosh can accommodate two internal ATA drives in the U-shaped drive carrier in
drive position 3 at the bottom of the computer. If you purchased a model with one Ultra ATA
drive, it sits in the lower portion of this U-shaped drive carrier. You can install a second ATA
drive in the upper part of the carrier.
The drive that came with your Macintosh is designated the primary drive (sometimes called
the “master drive” or “drive 0”). Therefore, an additional Ultra ATA drive must be configured
as the secondary drive (sometimes called the “slave drive” or “drive 1”). For more
information on configuring an additional drive, see the documentation that came with it.
Your Macintosh will not work with Ultra ATA drives set for “cable select mode.”
Important Hard disk drives and removable storage devices may require special software for
the computer to recognize the device. Check the documentation that came with your device
or contact the device’s manufacturer for more information.