System Board And Memory Expansion Switch Settings - IBM 5150 Hardware Reference Manual

System Board and Memory
Expansion Switch Settings
On the following four pages are graphic illustrations of switch settings.
These are necesary for the system to address components attached,
~
and to specify the amount of memory installed both on the System
Board and in the System Expansion Slots. Refer to the System Board
Component Diagram (page 13) for DIP switch locations.
SWITCH 1
o
1 2 3 4 5 6 7 8
1' \
rD~DDDDDD
POSITION
FUNCTION
1-7-8 NUMBER OF 5%" DISKETTE DRIVES INSTALLED; PAGE 2-29
2 UNUSED-MUST BE ON (RESERVED FOR CO-PROCESSOR)
3-4
AMOUNT OF MEMORY ON SYSTEM BOARD; PAGE 2-30
5-6
TYPE OF MONITOR YOU ARE USING; PAGE 2-29
SWITCH 2
o
1 2 3 4 5 6 7 8
1\
fDDDD~~~~
\
POSITION
FUNCTION
1-2-3-4
AMOUNT OF MEMORY OPTIONS INSTALLED; PAGE 2-30
5-6-7-8
ALWAYS IN THE OFF POSITION
2-28