Table of Contents
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Chapter 5
Technical Description
Overview
The technical features of the SX CAT motherboard are described in this chapter. Detailed information about connector pinouts and memory configurations are
provided.
SX CAT Connector List
Connector
Function
J1 - J13
ISA Bus Connectors
J14 and J15
COM2 and COM1 Serial Port Connectors
J16
Keyboard Connector
J17
Floppy Disk Connector
J18
Parallel Port Connector
J19
Offboard Battery Connector
J20
IDE Hard Disk Connector
J21
Reset Connector
J22
Speaker Connector
J23
Keylock/Front Panel Connector
J24
IDE Activity LED Connector
J25
Turbo Speed LED Connector
J26
Turbo Speed Switch Connector
W3
4 MB SIMM Selection Jumper (not available in 16 MHz version(
P8 and P9
Power Supply Connectors
U15
BIOS Socket
U16
Keyboard Controller
U27
80387SX Math Coprocessor Socket
SIM1 - SIM8
Onboard DRAM SIMM Sockets
SW1
Configuration Switch
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