Jumper Settings; Connector Functions; Settings For Cpu Core/Bus Frequency Ration (Jp1) - Acer Altos 9100B User Manual

2.2.1

Jumper Settings

Table 2-1 lists the CPU board jumpers with their corresponding settings and
functions.
Table 2-1 Settings for CPU Core/Bus Frequency Ratio (JP1)
1-2-3
1-2 Closed
1-2 Closed
1-2 Closed
1-2 Closed
1-2 Closed
1-2 Closed
1-2 Closed
1-2 Closed
* Depending on the configuration, either one can used as the default:
4/1 for 400 MHz
7/2 for 350 MHz
2.2.2

Connector Functions

Table 2-2 lists the different connectors on the CPU board and their respective
functions.
Table 2-2 Connector Functions
Connector
CN1
CN2
CN3
CN4
2-4 AcerAltos 9100B Series User's Guide
JP1 Settings
4-5-6
4-5 Closed 7-8 Closed
4-5 Closed 8-9 Closed
4-5 Closed 7-8 Closed
4-5 Closed 8-9 Closed
5-6 Closed 7-8 Closed
5-6 Closed 8-9 Closed
5-6 Closed 7-8 Closed
5-6 Closed 8-9 Closed
CPU 2 Fan connector
CPU 2 Thermal Detection connector
CPU 1 Fan connector
CPU 1 Thermal Detection connector
7-8-9 10-11-12
10-11 Closed
10-11 Closed
11-12 Closed
11-12 Closed
10-11 Closed
10-11 Closed
11-12 Closed
11-12 Closed
Function
CPU Core/Bus Freq.
2/1
3/1
4/1 *
5/1
5/2
7/2 *
9/2
11/2