Note
Set the DIP switches only while your computer is off.
Because software programs check the settings each time you
cum on the system, do not change the settings while a
program is running.
Your computer has two sets of DIP switches; set 1 contains
eight switches which control the computer’s internal
operations, and set 2 contains four switches which control the
parallel and serial ports. The label inside the DIP switch cover
shows the function and factory setting of each DIP switch.
A switch is ON when it is up and OFF when it is down. To
change the setting, use a hard, thin object, such as a small
screwdriver or a pencil.
DIP Switch Set
1
(Internal Operations)
The following table lists the system functions controlled by
each switch in set 1.
DIP switch set I
1
2
3
4
5
6
7
8
Keyboard
type
Coprocessor
RAM size
Monitor and
adapter type
Number of
diskette
drives
Standard ON
Enhanced OFF
Not installed ON
Installed
O f f
640KB
OFF OFF
512KB
Off ON
256KB
ON ON
Color (40x25)
OFF ON
Color (80x25)
ON OFF
Monochrome
OFF OFF
Enhanced
ON ON
1
ON ON
2
OFF ON
A-2
Changing DIP Switches and Using Setup