
Chapter 1 Hardware Configuration 11
1.7 CPU Setup
1.7.1 CPU core voltage select (SW2)
SW2 must be set to match the CPU type. The chart below shows the
proper jumper setting for their respective V
CC
. A CPU's core voltage
requirement is usually printed on top of the processor.
Select the voltage supply that is closest to the voltage printed on the
CPU.
Table 1-5: CPU core voltage select (SW2)
Voltage setting Pin 1 Pin 2 Pin 3 Pin 4
2 OFF OFF OFF OFF
2.1 ON OFF OFF OFF
2.2 OFF ON OFF OFF
2.3 OFF OFF ON OFF
2.4 OFF OFF ON OFF
2.5 ON OFF ON OFF
2.6 OFF ON ON OFF
2.7 ON ON ON OFF
2.8 OFF OFF OFF ON
2.9 ON OFF OFF ON
3 OFF ON OFF ON
3.1 ON ON OFF ON
3.2 OFF OFF ON ON
3.3 ON OFF ON ON
3.4 OFF ON ON ON
3.5 ON ON ON ON
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