SOYO ATX 12V User Manual page 30

Hardware Installation
2. Reset
Plug the Reset push-button cable into the 2-pin Reset header on the
Motherboard. Pushing the Reset button on the front panel will cause the
system to restart the boot-up sequence.
3. Speaker
Attach the 4-pin PC speaker cable from the case to the Speaker header on
the Motherboard.
4. ACPI LED
Connecting the 2-pin ACPI LED cable to the corresponding ACPI LED
header will cause the LED to light whenever the system is in ACPI mode.
The manufacturer has permanently set this Motherboard in ACPI mode for
PC99 requirements.
Reset Pin Assignment
Pin1 Pin2
Power Good
Speaker Pin Assignment
+
VCC NC NC
ACPI LED Pin Assignment
+
2.5V_DDR
25
SY- P4I865PE Plus DRAGON 2
GND
_
Speaker out
_
Control Pin