Apple Power Macintosh G3 Technical Information Page 1

Technical InformationSpecifications for Power Macintosh G3 minitower computers

Expansion cards and other internal devicesIf you add an expansion card or a storage device to your computer, make sure the component’spower requiremen

Modes supportedm Audio CDm CD-ROM: Modes 1 and 2m CD-ROM XA: Mode 2, Forms 1 and 2m CD-I: Mode 2, Forms 1 and 2m Photo CD: Single-session and mult

Main unitProcessorPowerPC™G3 processor at one of the following speeds:Processor speed System bus speed233 megahertz (MHz) 66 MHz266 MHz 66 MHz300 MHz

22Other memorym 4 MB of read-only memory (ROM)m 8 kilobytes (KB) of nonvolatile parameter memorym 512K to 1 MB of static RAM used as a level 2 cache i

3Mode Screen refresh rate Pixel Maximum color depth1(kHz) Vertical (MHz) Horizontal (Hz) Clock (bits per pixel)2 MB 4 MB 6 MB640 x 870 75.000 68.850

Interfacesm One ADB port supporting up to three ADB input devices (such as a keyboard, mouse, ortrackball) daisy-chained through a low-speed, synchron

5SCSI interfaceYour computer has one standard SCSI chain, which is capable of transferring data at up to 5MB per second. The SCSI chain can support up

6Noise, distortion, and bandwidthm Sound input signal-to-noise ratio (SNR): 85 dB unweighted (add +8 dB to estimate A weighting)m Total harmonic disto

m Polarity: sync negative (no sync on S-video chroma signal)m Voltage level: 1.0 Vpp±5% into a 75 Ω resistive load (S-video chroma 0.7 Vpp)m Impedance

DC powerm Continuous output: 161 watts (W)m Peak output (for 12 seconds at startup): 210 WOutput voltage Maximum current1+5 V 18.3 A2+5 V (trickle) 0.