NEC MC2200 User Manual page 60

The system board jumpers enable you to set specific operating parameters for your
system. A jumper is a small plastic-encased conductor (shorting plug) that slips over
two jumper pins.
Figure 3-1 shows the location of the system board jumpers. Table 3-10 lists the system
board jumpers and their factory default settings.
Model Type
Model Type
Reserved
3-18 Configuring Your System
Figure 3-1. System Board Jumpers
1 2 3
J54
1 2
3
J53
J21
3
Model Type
J51
2
1
3
CPU 2
2 J50
1
3
CPU 1
J49
2
1
1 2 3
HD Activity
J612
1 2 3
J27
J26
Model Type
J25
J29
A B
3
2
Reserved
Reserved
1
J7A J7B
FLASH Code
Reserved
J6A
J6B
Reserved
CPU Speed
J5B
J5A
CPU Speed
Model Type
J4A J4B
CPU Speed
Reserved
J3A
J3B
Password Clear
CPU Speed
J2B
J2A
3
2
CPU Speed CMOS Clear
1
J1A J1B
1 2 3
Model Type
J52
3
J28
Reserved
2
1