SOYO SY-5SSM User's Manual & Technical Reference page 28

Hardware Setup
Connect one side of the 34-pin flat cable to the floppy drive and plug
the other end to the floppy drive connector on the Motherboard.
This Motherboard can support up to 2 floppy drives.
Step 8. Front Panel Connections
Plug the computer case's front panel devices to the corresponding
connectors on the Motherboard.
1. Power LED & KeyLock
Plug the Power LED cable into the 5-pin Keylock connector.
Some systems may feature a KeyLock function with a front panel
switch for enabling or disabling the keyboard. Connect the KeyLock
switch to the 5-pin Keylock connector on the Motherboard.
Please install according to the following pin assignment: pin 1,3 are
for Power LED and pin 4,5 are for Keylock.
2. Reset
Plug the Reset push-button cable into the 2-pin Reset connector on
the Motherboard. Pushing the Reset button on the front panel will
SY-5SSM & SY-5SSM/5 V1.1
PWRBT
ACPI LED
HDD LED
®
24
+
Reset
_
_
+
Power
LED
Keylock
Speaker