User Guide

Hardware Installation
2-11
2.7 Customizing your Hardware Setup
You may customize your hardware setup according to your desired system
performance. However, doing so requires resetting of several jumpers. The
onboard jumpers are normally set to its default setting. See the figure in
section 2.2 for the location of the jumpers on the system board.
The following sections tell how to configure the system board to meet the
desired performance:
2.7.1 Selecting the Flash ROM Type
The AP53 board supports both the 5V
and 12V Flash ROM types. Normally,
the board comes with a 5V Flash ROM
and with the jumpers JP1301 and
JP1302 set to 1-2. Reset JP1301 to 2-3
if you want to install a 12V Flash ROM.
2.7.2 Disabling the Onboard Super I/O Controller
The board is preset by the manufacturer
with the onboard I/O controller enabled.
In case you wish to use an external I/O
controller, you need to disable the
onboard I/O before the external I/O card
functions. To disable, you need to reset
jumper JP8 to 2-3.
JP1301 JP1302
5V
(default)
12V
Enabled
(default)
Disabled
JP8