Microprocessor; Cmos Ram And Cmos Ram Extension; Rom Bios/Post; System Partition - IBM PS/2 N51 SX HMR Manual

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
VGA with LCD controller
Serial port
Parallel port
External input device port
Optional communication-adapter slot
Suspend and resume functions
System-expansion port
Subtopics

1.2.1 Microprocessor

1.2.2 CMOS RAM and CMOS RAM Extension

1.2.3 ROM BIOS/POST

1.2.4 System Partition

1.2.5 Errors during POST

1.2.6 Diskette-Drive Controller
1.2.7 VGA with LCD Controller
1.2.8 Serial Port
1.2.9 Parallel Port
1.2.10 External Input Device Port
1.2.11 Optional Communication-Interface Connector
1.2.12 Suspend and Resume Functions
1.2.13 System-Expansion Port
IBM PS/2 Model N51 SX HMR
System Board Features
¦ Copyright IBM Corp. 1991
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