AIMB-585 User Manual 222.10.5 Power LED and keyboard lock connector (JFP2/PWR_LED &KEY LOCK)(JFP2/PWR_LED & KEY LOCK) is a 5-pin connector for the power on LED and KeyLock function. Refer to Appendix B for detailed information on the pin assignments.The Power LED cable should be connected to pin 1-3. The key lock button cableshould be connected to pin 4-5. There are 3 modes for the power supply connection.The first is “ATX power mode”; the system turns on/off by a momentary power button.The second is “AT Power Mode”; the system turns on/off via the power supply switch.The third is another “AT Power Mode” which makes use of the front panel powerswitch. The power LED status is indicated in the following table:2.11 Line Out, Mic In Connector (AUDIO1)Table 2.2: ATX Power Supply LED Status (No support for AT power)Power modeLED(ATX Power Mode)(On/off bymomentary button)LED(AT power Mode)(On/off by switchingpower supply)LED(AT power Mode)(On/off by frontpanel switch)PSON1(on back plane)jumper settingpins 2-3 closed pins 1-2 closed Connect pins 1 & 2 topanel switch via cableSystem On On On OnSystem Off Off ( Windows 7)Slow Flashes (Window 8) Off OffS3 Fast flashes N/A N/AS4 Slow flashes N/A N/A
