J17-Keylock & Power Led Connector; J18-Speaker Connector; Jp19-Hardware Reset Control; J20-External Battery Connector - SOYO Pentium SiS 551x User's Manual & Technical Reference

Hardware Setup
J17 - Keylock & Power LED Connector
J17 is a connector for a lock that may "b e installed on the system case for enabling or
disabling the keyboard. J17 also attaches to the case 's Power LED.
J18 - Speaker Connector
Attach the system speaker to connector J18
JI 9- Hardware Reset Control'
Attach the Reset switch to J19. Closing the Reset switch restarts the system.
J20 - External Battery Connector
J20 is a 4-pin connector to which you can attach an external battery. Pin 1 of J20 is
positive ( + ) and pin 4 is negative ( - ).
J22 - Turbo LED Connector
Attach the sleep LED to J22. The LED lights when the system is in Turbo mode,
lDE1/lDE2 - On-board Primary/Secondary IDE HDD
Connectors
Attach on-board hard disk drives to these connectors.
LED1/LED2 - HDD LED Connectors
Attach on-board hard disk drive LEDs to this connector. The LED lights when an
HDD is active.
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