Epson ActionTower 3000 User Manual - Page 49

Changing the Jumper Settings, tables are the only ones you may need to change; others are

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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. (The jumpers listed in the tables are the only ones you may need to change; others are for service purposes only.) Miscellaneous jumper settings jumper number JA Jumper setting 1-2* 2-3 Function Enables LPT (parallel port) Disables LPT (parallel port) JB** 21--32* Enables HDC (lDE hard disk drive controler) Disables HDC ODE hard disk drive controler) JC 21--32* Enables COMA (serial port1) Disables COMA (serial part 1) JD 1-2* 2-3 Enables COMB (serial port 2) Disables COMB (serial-port 2) JE** 1-2* 2-3 Enables HDC (lDE hard disk drive controller) Dlsablss HDC (IDE hard disk drive controller) J4 1-2 Enables game port (J1) 2-3* Disables game port (J1) J5 J6 J7 J8 J10 J17*** 1-2* 2-3 1-2* 2-3 12--32 * 1-2* 2-3 On* Off 1-2 3-4 1-2, 3-4 5-6 Assigns the parallel port as LPTl (378h-37Fh) Assigns the parallel port as LPT2 (278h-27Fh) Assigns serial port 1 as COM1 (3F8h-3FFh) Assigns serial port 1 as COM3 (3E8h-3EFh) AAssssigignnssseseriarllapl oprot r2t a2saCs OCMOM2 4(2(F28Eh8h-2-2FEFFhh)) Enables the diskette drive controlIer Disables the diskette drive controller Enables VGA interrupt Disables VGA interrupt Microprocessor installed runs at 33 MM or 66 MM or a multiple of these (486SX/33. 486DX/33, 486DX2/66, DX4/100 and Pentium) Microprocessor installed is a 486DX/50 Microprocssor installed is a DX/40 Microprocessor installed at 25 MHz or 50 MHz or a multIpIe of these (486SX/25, 486DX2/50. DX4/75. and SX2/50) 3-6 Installing and Removing Options

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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. (The jumpers listed in the
tables are the only ones you may need to change; others are for
service purposes only.)
Miscellaneous
jumper settings
jumper
Jumper
number
setting
Function
JA
1-2*
Enables LPT (parallel port)
2-3
Disables LPT (parallel port)
JB**
1-2*
Enables HDC (lDE hard disk drive controler)
2-3
Disables HDC ODE hard disk drive controler)
JC
1- 2*
Enables COMA (serial port1)
2-3
Disables COMA (serial part 1)
JD
1-2*
Enables COMB (serial port 2)
2-3
Disables COMB (serial-port 2)
JE**
J4
1-2*
Enables HDC (lDE hard disk drive controller)
2-3
Dlsablss HDC (IDE hard disk drive controller)
1-2
Enables game port (J1)
2-3*
Disables game port (J1)
J5
1-2*
2-3
Assigns the parallel port as LPTl (378h-37Fh)
Assigns the parallel port as LPT2 (278h-27Fh)
J6
1-2*
2-3
Assigns serial port 1 as COM1 (3F8h-3FFh)
Assigns serial port 1 as COM3 (3E8h-3EFh)
J7
1-2*
2-3
Assigns serial port 2 as COM2 (2F8h-2FFh)
Assigns serlal port 2
as COM4 (2E8h-2EFh)
J8
J10
1-2*
2-3
O
n
*
Off
1-2
Enables the diskette drive controlIer
Disables the diskette drive controller
Enables VGA interrupt
Disables VGA interrupt
J17***
Microprocessor installed runs at 33 MM or 66 MM or a
multiple of these (486SX/33. 486DX/33, 486DX2/66, DX4/100
and Pentium)
3-4
Microprocessor installed is a 486DX/50
1-2, 3-4
Microprocssor installed is a DX/40
5-6
Microprocessor installed at 25 MHz or 50 MHz or a
multIpIe of these (486SX/25, 486DX2/50. DX4/75. and SX2/50)
3-6
Installing
and Removing Options