SOYO SY-7IWB User Manual page 46

Hardware Installation
Step 5. PC speaker redirection (JP10)
Through this jumper the case speaker output can be redirected to the
external (amplified) speakers (if connected) through the on-board Audio-
Codec.
PC speaker
redirection
JP10 Setting
Step 6. CPU Core Voltage Adjust (JP15)
In case your CPU is running on a frequency higher then it is specified
for, increasing its core voltage can enhance its stability. Over-clocking
your CPU does however force your system to operate outside of its
specifications, and therefore SOYO can not guarantee system stability.
CPU Core Voltage
Adjust
Default Vcore
5% higher
Redirect to external
speaker
Short pin 1-2
short pin 1-2
short pin 2-3
42
Use case speaker
Short pin 2-3
1 2 3
JP15 Setting
SY-7IWB
1 2 3
1 2 3
1 2 3