
8 PCN-6351/6351L User's Manual
Figure 1-2: Locating jumpers
Table 1-1: Jumpers
Number Function
SW1 (Pins 1-3) PCI bus / CPU frequency setting
SW1 (Pin 4) Cache RAM mode setting
SW1 (Pins 5-6) CPU frequency setting
SW2 (Pin 1-4) CPU core voltage select
SW2 (Pin 5-6) Rev.
JP2 LCD setting
JP3 RTC and watchdog timer setting
JP4 COM2 setting for RS-232/422/485
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