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Upgrades Using B4166 and B4168 CPUs B-9
The switch packs on the master clock control the speed of the system. When
B4125 CPUs are in the system, the clock runs at 9.6 ns. To set the system
speed to 9.0 ns, access the clock module and change the switches.
Figure B3 Accessing the Clock Module
PK1249
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4
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5
(Right Side)
(Left Side)
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