Asus PRIME B650M-A WIFI II Users Manual English - Page 16

If the steps above do not help, remove the onboard button cell battery and short the two pins again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the button cell battery. RXD DTR DSR CTS DCD TXD GND RTS RI 14. COM Port header The COM (Serial) Port header allows you to connect a COM port module. Connect the COM port module cable to this header, then install the module to a slot opening on the system chassis. COM PIN 1 The COM port module is purchased separately. 15. 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. PORT1L PORT1R PORT2R SENSE_SEND PORT2L AGND NC SENSE1_RETUR SENSE2_RETUR AAFP PIN 1 HD-audio-compliant pin definition 16. S/PDIF Out header The S/PDIF Out header allows you to connect the Sony/Philips Digital Interface (S/PDIF) Out module. SPDIF_OUT +5V SPDIFOUT GND The S/PDIF module is purchased separately. 17. Speaker header The 4-pin header is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings. +5V GND GND Speaker Out SPEAKER PIN 1 F_SPI_HOLD#_R T_SPI_MISO F_SPI_CS0#_R F_SPI_PWR NC H_PCIE_RST# VCCSPI 18. SPI TPM header This header supports a Trusted Platform Module (TPM) system with a Serial Peripheral Interface (SPI), allowing you to securely store keys, digital certificates, passwords, and data. A TPM system also helps enhance PIN 1 network security, protects digital identities, and ensures platform integrity. TPM The TPM module is purchased separately. T_SPI_MOSI T_SPI_CLK GND TPM_DETECT_L S_SPI_TPM_CS2# S_SPI_TPM_IRQ# 1-6 Chapter 1: Product Introduction