User Guide

System Configuration 3-25

CPU Activation Jumpers

Jumpers JP4, JP5, JP6, JP7, JP8,and JP9 allow you to select the

CPU to activate at a time. Table 3-3 lists the settings and the

corresponding functions of these jumpers.

Table 3-3 CPU Activation Jumpers

Group 1 CPUs (CPU1 and CPU3)

JP6 JP7 Function

2-3 Open CPU1 only

1-2 1-2 CPU3 only

1-2 2-3 CPU1 and CPU3

Group 2 CPUs (CPU2 and CPU4)

JP4 JP5 Function

2-3 Open CPU2 only

1-2 1-2 CPU4 only

1-2 2-3 CPU2 and CPU4

Groups 1 and 2 CPUs

JP8 JP9 Function

2-3 1-2 Group 1 only

1-2 2-3 Group 2 only

2-3 2-3 Group 1 and Group 2