Epson ActionPC 3000 Manual do Utilizador descarregar pdf (Página 47)

Changing the Jumper Settings

The jumpers on the main system board control certain

functions and are preset at the factory to default positions;

however, you can use the information in the following tables to

change their settings, if necessary.

Miscellaneous jumper settings

Jumper Jumper

lumber setting Function

1-2 *

Enables LPT (parallel port)

2-3

Disables LPT (parallel port)

JB **

1-2 *

Enables HDC (IDE hard disk drive controller)

2-3

Disables HDC (IDE hard disk drive controller)

1-2*

Enables COMA (serial port 1)

2-3

Disables COMA (serial port 1)

1-2 *

Enables COMB (serial port 2)

2-3

Disables COMB (serial port 2)

JE **

1-2*

Enables HDC (IDE hard disk drive controller)

2-3

Disables HDC (IDE hard disk drive controller)

1-2

Enablesgame port (J1)

2-3 *

Disables game port (J1)

1-2*

Assigns the parallel port as LPT1 (378h-37Fh)

2-3

Assigns the parallel port as LPT2 (278h-27Fh)

1-2*

Assigns serial port 1 as COM1 (3F8h-3FFh)

2-3

Assigns serial port 1 as COM3 (3E8h-3EFh)

1-2 *

Assigns serial port 2 as COM2 (2F8h-2FFh)

2-3

Assigns serial port 2 as COM4 (2E8h-2EFh)

1-2 *

Enablesthe diskette drive controller

2-3

Disables the diskette drive controller

J10

On * Enable VGA interrupt

Off Disable VGA interrupt

J17 ***

1-2

Microprocessor installed runs at 33 MHz or 66 MHz or a

multiple of these (486SX/33, 486DX/33, 486DX2/66, DX4/100,

or Pentium)

3-4

Microprocessor installed is a 486DX/50

1-2,3-4 Microprocessor installed is a DX/40

5-6

Microprocessor installed runs at 25 MHz or 50 MHz or a

multiple of these (486SX/25, 486DX2/50, DX4/75, or SX2/50)

3-6 Installing and Removing Options

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 130 131

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Epson ActionPC 3000 Manual do Utilizador Página 47

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