ASMB-585 User Manual 22
2.9.1 Power LED (JFP3)
JFP3 is a 5-pin connector for the power LED. Refer to Appendix B for detailed infor-
mation on the pin assignments. If a PS/2 or ATX power supply is used, the system’s
power LED status will be as indicated as follows.
2.9.2 External Speaker (JFP2 pins 1, 4, 7, 10)
JFP2 pins 1, 4, 7, 10 connector for an external speaker. The ASMB-585 provides an
onboard buzzer as an alternative. To enable the buzzer, set pins 7-10 as closed.
2.9.3 HDD LED Connector (JFP1 pins 2 & 5)
You can connect an LED to connector JFP1 to indicate when the HDD is active.
2.9.4 ATX Soft Power Switch (JFP1 pins 3 & 6)
If your computer case is equipped with an ATX power supply, you should connect the
power on/off button on your computer case to pins 3 and 6 of JFP1. This connection
enables you to turn your computer on and off.
2.9.5 Reset Connector (JFP1 pins 9 & 12)
Many computer cases offer the convenience of a reset button.
Table 2.1: PS/2 or ATX power supply LED status
Power mode LED (PS/2 power) LED (ATX power)
System On On On
System Suspend Fast Flash Fast Flash
System Off Off Off
System Off in deep sleep Off Off
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