AcerAltos 9100B Series User’s Guide2-42.2.1 Jumper SettingsTable 2-1 lists the CPU board jumpers with their corresponding settings andfunctions.Table 2-1 Settings for CPU Core/Bus Frequency Ratio (JP1)JP1 Settings1-2-3 4-5-6 7-8-9 10-11-12 CPU Core/Bus Freq.1-2 Closed 4-5 Closed 7-8 Closed 10-11 Closed 2/11-2 Closed 4-5 Closed 8-9 Closed 10-11 Closed 3/11-2 Closed 4-5 Closed 7-8 Closed 11-12 Closed 4/1 *1-2 Closed 4-5 Closed 8-9 Closed 11-12 Closed 5/11-2 Closed 5-6 Closed 7-8 Closed 10-11 Closed 5/21-2 Closed 5-6 Closed 8-9 Closed 10-11 Closed 7/2 *1-2 Closed 5-6 Closed 7-8 Closed 11-12 Closed 9/21-2 Closed 5-6 Closed 8-9 Closed 11-12 Closed 11/2* Depending on the configuration, either one can used as the default:4/1 for 400 MHz7/2 for 350 MHz2.2.2 Connector FunctionsTable 2-2 lists the different connectors on the CPU board and their respectivefunctions.Table 2-2 Connector FunctionsConnector FunctionCN1 CPU 2 Fan connectorCN2 CPU 2 Thermal Detection connectorCN3 CPU 1 Fan connectorCN4 CPU 1 Thermal Detection connector
