Epson Progression U12 - Manual (Page 73)

Jumper Settings
A jumper is a small electrical connector that controls one of the
computer’s functions. The jumper settings in your computer
are preset at the factory; however, you can control certain
features by changing the standard settings as follows:
Enable or disable the built-in mouse port
Enable or disable an external mouse port
Set your monitor type to monochrome or color
Enable or disable the power-on password function
Enable or disable the built-in VGA display adapter.
If you need to change any jumper settings, or if you want to
check the current settings, follow the instructions in this
section. Refer to the “Main System Board Map” on page 3-3 to
locate the jumpers.
The following table lists the main system board jumper settings
and their functions.
3-4 Installing and Removing Options