System Board (720, 720C)
1 External Input Device Connector
2 System-Expansion Connector (240-pin)
3 Parallel Connector
4 Serial Connector
5 Password-override Connector
6 PCMCIA Connector
7 Base Memory Card Interface
8 Video Card Interface
9 Backup Battery Connector
1 Hard Disk Drive Connector
11 Processor Card Interface
12 Keyboard Control Card Interface
13 Speaker Connector
14 Voltage Converter Interface
15 Diskette Drive Interface
16 System Status Indicator Connector
(Front side)
(Rear side)
112 IBM Mobile Systems HMM