![](/images/backgrounds/113036/113036-26191x1.png)
The following table lists the jumper settings and their functions.
Main system board jumper settings
ADisables the
B* Enables the
ADisables the password function
B* Enables the password function
A* | A color monitor is installed |
BA monochrome monitor is installed Enables the
Disables the
A* | Enables the IRQ9 signal for the |
| display adapter |
BEnables the IRQ9 signal for a display adapter on an option card
*Factory setting
Installing and Removing Options |