NEC LS2400, User Manual, Page: 22 / 186

1-6 System Overview
System Board Features
The system board offers a “flat” design with the processor and memory
subsystems residing on the board. This figure shows the major
components on the system board. The following subsections describe
the system board major components.
System Board
A. Secondary processor connector O. Narrow SCSI connector
B. Primary processor connector P. Wide SCSI connector
C. Heatsink fan connectors Q. Memory DIMM sockets
D. Main power connector R. PCI slots for add-in boards
E. Diskette drive connector S. ISA slots for add-in boards
F. Front panel power LED connector T. Intrusion alarm connector
G. Speaker connector U. USB connector
H. Front panel hard disk drive LED
connector V. RJ-45 network controller connector
I. Front panel power switch connector W. Serial port B (COM 2) connector
J. Lithium backup battery X. VGA monitor port connector
K. System fan connector Y. Parallel port connector
L. IDE connectors, primary and
secondary Z. Serial A (COM 1) connector
M. Configuration jumper blocks AA. Keyboard and Mouse PS/2 compatible connectors
N. Server management connector
Z
F
G
H
A C D E B
I
L
J
N
O
P Q
K
M
X
W
U
V
T
S R
Y
AA
Pri.
Sec.