Jumpers and connectors
Connectors on the board link it to external devices such as hard disk drives, a keyboard, or floppy drives. In addition, the board has a number of jumpers that allow you to configure your system to suit your application.
The following tables list the function of each of the board's jumpers and connectors.
Jumpers
Label | Function |
J2 | Clear CMOS |
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J3 | DOC address select |
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J4 | ATX |
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J5 | COM4 RI pin voltage select |
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J6 | COM2 |
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J7 | LCD clock select |
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J8 | LCD driving voltage select |
J9 | Reserve for future use (default : |
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J10 | COM3 RI pin voltage select |
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J11 | COM2 |
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J12 | Audio output select |
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S1 (2~6) | CPU Vcore select |
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S3 (1~3) | CPU clock select |
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S3 (4~6) | CPU frequency ratio |
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