Robotics Modem Board (Optional); Diskette Drive; Hard Drive; Cd-Rom/Dvd Drive - NEC DIRECTION SP B - SERVICE MANUAL 1998 Service Manual

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Technical Information
1-7
The CS4611 enables burst mode transfers of audio data between the system bus and the
device's internal DMA engine and stream processor. The chip provides optimized digital
audio processing.
The optional AWE64D PCI sound board replaces the integrated Crystal audio system. It
provides FM synthesis and 64 simultaneous voices.
U.S. ROBOTICS MODEM BOARD (OPTIONAL)
®
Two modem boards are available: the U.S. Robotics
x2-capable Winmodem and the U.S.
Robotics x2-capable Sportster. Each modem board contains fax and modem capabilities.
The Winmodem provides fax and modem capabilities. The Sportster provides modem, fax,
full-duplex speakerphone, and voicemail capabilities. Each board provides receive transfer
rates of 56 Kbps (kilobytes per second) for data and 14.4 Kbps for fax.

DISKETTE DRIVE

The system comes standard with a 1.44-MB high-density diskette drive preinstalled in the
3 1/2-inch accessible device slot (drive A). The drive is connected to the system board via a
two-connector cable.

HARD DRIVE

The system supports up to three IDE hard drives, the standard hard drive, and two optional
hard drives (if a Zip drive does not come standard with the system).

CD-ROM/DVD DRIVE

The drive can be used to load programs from a CD or it can be used to play audio CDs. The
drive operates at different speeds depending on whether the CD contains music or data. The
drive is fully compatible with Kodak Multisession Photo CDs™ and standard CDs.
The drive is connected to the secondary IDE/PCI port on the system board.

ZIP DRIVE

®
Some systems come with the Iomega
Zip 100 ATA drive. The Zip drive provides
removable 100-MB data disks and has a data transfer rate up to 1.4 MB per second.

POWER SUPPLY

The 235-watt power supply is mounted inside the system unit. It supplies power to the
system board, option boards, diskette drives, hard drives, keyboard, and mouse. A fan
inside the power supply provides system ventilation. The power supply has several cables
for attaching to the various devices requiring power.

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