NEC POWERMATE 5100 - SERVICE, Руководство по обслуживанию

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1-10 System Overview
External connectors on the system board include two serial connectors, a
parallel connector, two USB ports, keyboard port, mouse port, and external
audio connectors.
The system board supports a 1.44-MB diskette drive, and up to four IDE devices
such as a hard drive or CD-ROM drive.
The system board seats in the NLX connector on the riser board. The system
board is installed in the chassis along guide rails and is secured with a single
latch for easy access.
For further information on the system board, see Section 4, “System Board.”
Section 6, “Illustrated Parts Breakdown” lists the NEC CSD part number for the
system board.
Riser Board
The riser board contains most of the cable connectors in the system, including:
„
primary and secondary IDE connectors
„
diskette drive connector
„
expansion board connectors
„
front panel connector for lamp and power signals
„
NLX connector for the system board
„
CD audio in, modem in, Wake-On LAN, chassis intrusion, speaker, and
fan connectors
„
external LAN connector
„
power connectors
„
system fan and LAN jumpers.
For further information on the riser board, see Section 5, “Riser Board.”
Section 6, “Illustrated Parts Breakdown” lists the NEC CSD part number for the
riser board.
Diskette Drive
A single diskette drive is supported in the system (the BIOS does not support a
second diskette drive). The installed 1.44-MB 3 1/2-inch diskette drive is
connected by a single ribbon cable with two connectors. The diskette drive cable
plugs directly into the riser board. There are no switches or jumpers that need to
be set and the diskette drive is terminated.
Connector locations for the diskette drive on the riser board are given in
Section 5, “Riser Board.” Section 6, “Illustrated Parts Breakdown,” lists the
NEC CSD part number for the diskette drive. Diskette drive specifications are
given in Section 10, “Specifications.”