Hardware Features
Here is a list of the hardware features of the Power Mac G4 computer. The major features are described more fully later in this note.
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Microprocessor:
PowerPC G4 microprocessor running at a clock frequency of 400, 450, or 500 MHz depending on model and configuration. For more information, see PowerPC G4 Microprocessor.
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Cache:
1 MB of backside level 2 (L2) cache on the processor module. The cache runs at half the clock frequency of the microprocessor.
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Processor system bus:
64-bit wide data and 32-bit wide address, 100 MHz clock, supporting MaxBus protocol. For more information, see Processor Bus.
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RAM:
Four DIMM slots for 168-pin PC100 DIMMs (dual inline memory modules) using SDRAM (synchronous dynamic access memory) or ESDRAM (enhanced SDRAM) devices. A minimum of 64 MB of RAM is installed in one of the slots. For more information, see RAM Expansion.
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ROM:
NewWorld ROM-in-RAM implementation with 1 MB of boot ROM. For information about the ROM, see Boot ROM. For information about the ROM-in-RAM implementation, see ROM in RAM.
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Graphics acceleration:
A graphics card in the AGP slot provides 2D and 3D hardware graphics acceleration using the ATI RAGE 128 PRO graphics controller. For more information, see AGP Graphics Card.
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Sound:
Supports 16 bits/channel stereo input and output on built-in 3.5 mm line-level stereo input and output jacks, one built-in speaker. For more information, see Sound System.
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Hard disks:
One internal Ultra DMA/66 hard disk; provision for adding either a second Ultra DMA/66 disk or an ATA-3 storage device. For more information, see Ultra DMA/66 Hard Disk.
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Expansion bays:
Three expansion bays, one of which is occupied by an Ultra DMA/66 hard disk. Two bays are available for adding one internal 3.5 x 1-inch Ultra DMA/66 or two ATA-3 devices, or other devices connected to a PCI controller card. For more information, see Disk Drives.
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DVD-ROM drive:
ATAPI DVD-ROM drive providing support for 24x-speed CD-ROM and 6x-speed DVD-ROM media, as well as DVD-Video playback with DVD MPEG2 decode in software. For more information, see DVD-ROM Drive.
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DVD-RAM drive:
Optional ATAPI DVD-RAM drive reads and writes 2.6 GB and 5.2 GB DVD-RAM media in addition to supporting 2x-speed DVD-ROM, 20x CD-ROM, and DVD-Video playback with DVD MPEG2 decode in software. For more information, see Optional DVD-RAM Drive.
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Zip drive:
Some configurations include a 100 MB ATAPI Zip drive. For more information, see ATAPI Zip Drive.
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USB ports:
Two USB ports, described in USB Ports. The computer comes with a USB mouse and a USB keyboard that has two additional USB ports.
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Ethernet:
Built in Ethernet port with an RJ-45 connector for 10 or 100 Mbps operation on all configurations. For more information, see Ethernet Port.
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Wireless LAN:
An internal
wireless LAN module is available as a build-to-order option or as a user-installable upgrade. For more information, see AirPort Card Wireless LAN Module.
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FireWire ports:
Two external and one internal IEEE 1394a high-speed serial FireWire ports, which support transfer rates of 100, 200, and 400 Mbps. For more information, see FireWire Ports.
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Modem:
Slot for an optional built-in Apple 56 Kbps modem. The modem supports K56flex and V.90 modem standards. For more information, see Internal Modem.
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Keyboard:
Apple USB keyboard with function keys and inverted-T arrow keys. It is also a bus-powered USB hub with two USB ports. For more information, see Keyboard.
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Mouse:
Apple USB mouse operating as a low-speed (1.5 Mbps) USB device. For more information, see Mouse.
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PCI card expansion slots:
Three slots for 33 MHz, 64-bit or 32-bit, 12-inch PCI cards. For more information, see PCI Expansion Slots.
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AGP-2X graphics card slot:
The computer is always shipped with an accelerated graphics card installed in this slot. For more information, see AGP Graphics Card.
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Startup button:
Startup and sleep are controlled from the Apple USB keyboard and a front power button.
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Voltage switch:
Can be set to either 115 for voltages of 100-130 V or 230 for voltages of 200-250 V, depending on the voltage where the computer is installed. The voltage selection must be set manually.
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Fan speed control:
The speed of the fan is thermally controlled and is automatically set to the lowest possible speed to minimize noise. This is a function provided by the fan and is not under software control.
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Energy saving:
Sleep, startup, and shutdown scheduling can be controlled with an Energy Saver control panel.
© 1999-2000 Apple Computer, Inc. (Last Updated 15 Feb 00)