Changing The Jumper Settings - Epson ActionTower 2000 User Manual

Changing the Jumper Settings

The jumpers on the main system board control certain
functions and are preset to factory default positions. (See the
illustration above to locate the jumpers.)
Use the information in the following tables to change jumper
settings, if necessary.
Note
Any jumpers not listed in the following tables are for service
purposes only. Do not change their settings.
Miscellaneous jumper settings
Jumper
number
J3
J6
J7
J8
J9
J10
J11
J12
J13
Jumper
setting Function
1-2 Enables VGA IRQ
OFF* Disables VGA IRQ
I-2* Enables COM 1
2-3 Disables COM 1
I-2* Assigns COM 1 serial port asCOM1 (3F8H-3FFH)**
2-3 Assigns COM 1 serial
I-2* Enables COM 2
2-3 Disables COM 2
I-2* Assigns COM 2 serial
2-3 AssignsCOM 2 serial
I-2* Enables parallel port
2-3 Disablesparallel port
I-2* Assigns parallel port asLPT1 (378H-37FH)**
2-3 Assigns parallel port asLP12 (278H-27FH)**
I-2* Enablesoptional game port
2-3 Disablesoptional game port
I-2* Enables diskette drive controller
2-3 Disables diskette drive controller
port as COM 3 (3E8H-3EFH)**
port as COM 2 (2F8H-2FFH)**
port as COM 4 (2E8H-2EFH)**
Installing and Removing Options 3-7