User`s guide

Technical Information
108
PowerCenter Pro User’s Guide For Technical Support, Call 1-800-708-6227
Video
■ Built-in high performance EDO RAM video with hardware 2D/3D
acceleration
■ Horizontal refresh rate up to 75 Hz
■ On-the-fly resolution switching
■ 2 MB EDO RAM standard video
■ 4 MB EDO RAM video riser card available from Power Computing as an
option
■ 3 PCI slots available for enhanced-performance cards
Audio system
■ Stereo sound generator capable of driving stereo mini-plug headphones or
audio equipment
■ CD-quality 16-bit stereo, 44.1 kHz sample rate, input and output
■ Sample rates of 44.1 kHz, 22.05, and 11.025 kHz
■ Input line level: 2 volts peak-to-peak nominal into 6.5 k Ω
■ Input through output signal-to-noise ratio: >86 decibels (dB) with no
audible discrete tones
■ Bandwidth: 10 Hz – 19 kHz (+/– 2 dB) at 44.1 kHz sample rate
■ Total harmonic distortion plus noise: Less than 0.06%, measured 30 Hz –
60 kHz with a 2 V p-p sine wave input
Interfaces
■ Dual SCSI bus support with an internal UltraSCSI bus (20 MB/sec) and
Conventional SCSI bus (5 MB/sec)
■ Internal UltraSCSI bus supporting up to two internal devices in Minitower
enclosure and one internal device in Low-Profile enclosure
■ Conventional SCSI bus available for both internal and external devices
with a maximum of seven devices supported
■ One Apple Desktop Bus (ADB) port for up to three input devices daisy-
chained through a low-speed, synchronous serial bus
■ Three PCI bus expansion card slots, one occupied by the 20 MB/sec
UltraSCSI card
B Specs Page 108 Friday, June 6, 1997 10:17 AM