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Chapter 2
2.5
CPU EXTERNAL (BUS) FREQUENCY AND AGP
FREQUENCY SELECTION (SW1-4,5,6)
These switches tell the clock generator what frequency to send to the CPU and AGP.
The Bus clock times the Bus Ratio equals the CPU's Internal frequency.
2.6
CPU TO BUS FREQUENCY RATIO (SW1-1,2,3)
These switches set the frequency ratio between the Internal frequency of the CPU
and the External frequency (called the Bus clock) within the CPU. These must be
set together with the above switches CPU External (Bus) Frequency Selection.
2.7
SDRAM FREQUENCY SELECTION (SW1-7)
This switch set the SDRAM frequency same as CPU External frequency or AGP
frequency.
SW1-7 : ON
SW1-7 : OFF
12
ON
1 2
3
4 5
6
SDRAM frequency = AGP frequency
SDRAM frequency = CPU External frequency
7
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