System Board Features - IBM Personal System/2 CL57 SX Hardware Maintenance Reference

1.2 System Board Features

The major features of the system board are:
¯ 80386SX Microprocessor
¯ CMOS RAM and CMOS RAM extension
¯ ROM BIOS
¯ Diskette-drive controller
¯ Serial connector
¯ Parallel connector
¯ External input device connector
¯ Optional communication adapter slot
¯ System expansion connector
¯ Suspend and resume functions.
Subtopics
1.2.1 Microprocessor
1.2.2 CMOS RAM and CMOS RAM Extension
1.2.3 ROM BIOS/POST
1.2.4 Diskette-Drive Controller
1.2.5 Serial Connector
1.2.6 Parallel Connector
1.2.7 External Input Device Connector
1.2.8 Optional Communication Adapter Slot
1.2.9 System Expansion Connector
1.2.10 Suspend and Resume Functions
IBM PS/2 Model CL57 SX HMR
System Board Features
_ Copyright IBM Corp. 1991
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