User Guide

Installing the Motherboard 2-11
User's Manual
JP7 Header
This Jumper is used in selecting use of the
built-in audio chip, YMF752 or using the
AMR audio controller.
Jumper 1-2 shorted:
Disable AMR
CODEC (use YMF752) (Default)
Jumper 2-3 shorted:
Disable onboard
CODEC (use AMR)
CCMOS1: CMOS Discharge Jumper
Jumper CCMOS1 discharges the CMOS
memory. When you install the motherboard,
make sure this jumper is set for normal
operation (pin 1 and 2 shorted). See figure
2-8.
Normal Operation (Default) Discharge CMOS
Figure 2-8. CCMOS1 jumper setting
Note
Before you clear the CMOS, you have to first turn off the power (including the +5V
standby power), otherwise, your system may work abnormally or malfunction.