This article gives the technical specifications for the Power Macintosh 6100/66 computer.

Microprocessor

• PowerPC 601 RISC microprocessor running at 66 MHz
• Integrated floating-point unit and 32K cache
• 256K level-2 cache

Memory

• 4 MB ROM
• 256 bytes of non-volatile parameter memory
• 8 MB of RAM standard, expandable to 72 MB
• 2 SIMM slots (1 pair)
• 80 ns (nanosecond) SIMMs or faster
• SIMMs can be 4 MB, 8 MB, 16 MB or 32 MB, but must be installed in pairs of the same size. For example, you should install two 8 MB SIMMs in first two adjoining slots.
• Possible RAM configurations are 8, 16, 24, 40 and 72 MB.

RAM note: All 8MM RAM configurations come with 8MB of RAM soldered onto
the logic board

Form Factor

• Modular desktop enclosure (similar to Quadra 610, 660av enclosure)

Disk Drives

• One built-in Apple SuperDrive 1.4MB floppy disk drive that uses high-density floppy disks and reads, writes, and formats Macintosh, Windows, MS-DOS, OS/2, and ProDOS disks
• One internal 350MB hard disk
• Accommodates one 5.25-in., half-height device, such as the AppleCD 300i Plus CD-ROM drive
• Optional internal Apple CD-ROM drive (see above)
• Optional external SCSI hard disk drive (many capacities available)

Video Display

• Most Apple displays (see chart below
• Most third-party displays as well as NTSC, PAL, VGA, and SVGA monitors

Video Support*

• 640k of non-expandable DRAM-based video in all Power Macintosh 6100/66 models
• Power Macintosh 6100/66AV only: 2MB of non-expandable VRAM display support and DRAM display support for optional second display

Note : For Power Macintosh 6100/66 DOS Compatible specifications, please see the articles specific to that card.

Color depth support (maximum resolution in colors)

6100/66     6100/66AV
Display        6100/66AV    W/2MB VRAM
resolution       DRAM video       video
---------------------------------------------
640 by 480          32,768     16.7 million
832 by 624             256     16.7 million
1,024 by 768   not supported     32,768
1,152 by 870   not supported     32,768

Interfaces

• One Apple Desktop Bus (ADB) port for a keyboard, mouse, and other device
• AAUI-15 Ethernet connector
• High-density display port supporting Apple AudioVision monitors directly and other displays via a Power Macintosh Display Adapter (included with the 6100/66 only)
• Two DMA serial (RS-232/RS-422) ports compatible with LocalTalk and GeoPort cables
• High-speed asynchronous SCSI interface supporting up to six SCSI external devices
• 16-bit stereo sound input and output ports
• 6100/66 only: Internal expansion slot for processor-direct or 7-in. NuBus expansion card (requires adapter)
• 6100/66AV only: DB-15 video port for display
• 6100/66AV only: S-video input and output ports (RCA adapters included)

Audio System

• 16-bit stereo in and out
• Sample rates of 48, 44.1, 24, 22.05 kilohertz (kHz)
• Input line level: 1 volt peak-to-peak
• Output line level: 1 volt peak-to-peak
• Input SNR (signal-to-noise ratio): 82 decibels (dB) with no audible discrete tones
• Output SNR: 85 dB with no audible discrete tones
• Bandwidth: 20 Hz-20 kHz (+/- 2 dB) at 44.100 kHz sample rate
• THD+N (Total harmonic distortion plus noise): Less than 0.05 percent; measured 20 Hz-20kHz with a 1-Vrms sine wave input.

Networking

• Built-in Ethernet
• Serial port for AppleTalk
• Integrated GeoPort telecommunications architecture for data, fax, and voice connectivity.

Keyboard

• Several Apple Desktop Bus keyboards with numeric key pads available.

Mouse

• Apple Desktop Bus Mouse II; mechanical tracking, optical shaft, or contact encoding.

Clock/Calendar

• CMOS custom chip with long-life lithium battery.

Apple PlainTalk Microphone

• The microphone is unidirectional and optimized for use with speech recognition.

Disability Access

• Easy Access, and visible beep included with system software. These built-in features and third-party options provide alternative input and output tools for people with disabilities.

Electrical Requirements

• Line voltage: 100 to 240 VAC, RMS single phase, automatically configured
• Frequency: 50 to 60 hertz, single phase
• Power Supply Output Rating (Power available for internal devices)

• A/C Line Input (Power drawn by the Power Macintosh 6100/60)

- Peak input: 201W

ADB Power Requirements

• Maximum current draw for all ADB devices: 500 milliamps (a maximum of three Apple Desktop Bus devices is recommended)
• Mouse draws 10 milliamps.
• Keyboard draws 25 to 80 milliamps, depending on the keyboard model used.

Size and Weight

Main unit

• Height: 3.4 inches (8.5 cm)
• Width: 16.3 inches (41.5 cm)
• Depth: 15.6 inches (39.7 cm)
• Weight*: 14.0 pounds (6.4 kg)

• Height 1.3 inches (33 mm)
• Width 2.4 inches (61.7 mm)
• Depth 4.2 inches (107.3 mm)
• Weight 4 ounces (0.10 kg)

Operating Environment

• Operating temperature: 50 degrees to 104 degrees F (10 degrees to 40 degrees C)
• Storage temperature: -40 degrees to 116.6 degrees F (-40 degrees to 47 degrees C)
• Relative humidity: 5% to 95% noncondensing
• Maximum altitude: 10,000 ft. (3,048m)

Requires System 7.5.