NEC POWERMATE PROFESSIONAL 9000 - SERVICE, Руководство пользователя

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3-12 Reviewing System Features
Dual IDE Ports
The system board in your system provides two internal IDE
ports:
„
a primary IDE port
„
a secondary IDE port.
Each port supports two devices for a total of four IDE
devices. For system configuration flexibility, your computer
allows the connection of an IDE device without the addition
of a controller.
Either IDE port supports the Ultra DMA/33 standard for
33.3 MB per second, 32-bit wide data transfers on the high-
performance PCI local bus, as well as an enhanced IDE
interface that supports up to 16 MB per second, 32-bit wide
data transfers on the PCI bus.
USB Ports
The Universal Serial Bus (USB) ports allow you to add new
serial devices without opening up the system — simply plug
them into the ports. The USB determines system resources
for each peripheral and assigns them without user
intervention. Up to 127 devices can be daisy chained to a
single USB port.
Sound System
The Crystal CS4236B chip on the system board provides an
audio codec with an integrated FM synthesizer. The audio
subsystem provides compatibility with OPL3 FM
Synthesizer standard, and AdLib, Sound Blaster Pro 2.0,
Windows Sound System, and MPU-401 support. You have
full digital control of mixer and volume control functions, a
Crystal CS9236 Wavetable synthesizer, and can enable or
disable the audio subsystem through the BIOS Setup utility.