Asus PRIME A620-PLUS WIFI Users Manual English - Page 15

12. Clear CMOS header The Clear CMOS header allows you to clear the Real Time Clock (RTC) RAM in the CMOS, which contains the date, time, system passwords, and system setup parameters. To erase the RTC RAM: +3V_BAT GND CLRTC 1. Turn OFF the computer and unplug the power cord. PIN 1 2. Short-circuit pin 1-2 with a metal object or jumper cap for about 5-10 seconds. 3. Plug the power cord and turn ON the computer. 4. Hold down the key during the boot process and enter BIOS setup to re-enter data. DO NOT short-circuit the pins except when clearing the RTC RAM. Short-circuiting or placing a jumper cap will cause system boot failure! If the steps above do not help, remove the onboard battery and short the two pins again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery. RXD DTR DSR CTS 13. COM Port header The COM (Serial) Port header allows you to connect a COM port module. COM Connect the COM port module cable to this header, then install the module to a slot opening on the system chassis. The COM port module is purchased separately. PIN 1 DCD TXD GND RTS RI AGND NC SENSE1_RETUR SENSE2_RETUR 14. Front Panel Audio header The Front Panel Audio header is for a chassis-mounted front panel audio I/O module that supports HD Audio. Connect one end of the front panel audio I/O module cable to this header. We recommend that you connect a high-definition front panel audio module to this header to avail of the motherboard's high-definition audio capability. AAFP PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L 15. S/PDIF Out header The S/PDIF Out header allows you to connect the Sony/Philips Digital Interface (S/PDIF) Out module. The S/PDIF module is purchased separately. HD-audio-compliant pin definition SPDIF_OUT PIN 1 +5V SPDIFOUT GND PRIME A620-PLUS WIFI 1-5