Asus Pro A520M-C/CSM Pro A520M-C Users Manual English - Page 11

7. SATA 6Gb/s ports The SATA 6Gb/s ports allow you to connect SATA devices such as optical disc drives and hard disk drives via a SATA cable. 8. USB 3.2 Gen 1 header The USB 3.2 Gen 1 header allows you to connect a USB 3.2 Gen 1 module for additional USB 3.2 Gen 1 ports. The USB 3.2 Gen 1 header provides data transfer speeds of up to 5 Gb/s. The USB 3.2 Gen 1 module is purchased separately. USB3+5V IntA_P2_SSRXIntA_P2_SSRX+ GND IntA_P2_SSTXIntA_P2_SSTX+ GND IntA_P2_DIntA_P2_D+ PIN 1 USB3+5V IntA_P1_SSRXIntA_P1_SSRX+ GND IntA_P1_SSTXIntA_P1_SSTX+ GND IntA_P1_DIntA_P1_D+ GND USB+5V USB_P1USB_P1+ GND NC 9. USB 2.0 headers The USB 2.0 headers allow you to connect USB modules for additional USB 2.0 ports. The USB 2.0 headers provide data transfer speeds of up to 480 Mb/s. DO NOT connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! PIN 1 The USB 2.0 module is purchased separately. USB+5V USB_P2USB_P2+ GND +5VSB_MB Chassis Signal GND 10. Chassis intrusion header This header is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event. CHASSIS 11. Clear CMOS header This header allows you to clear the CMOS RTC RAM data of the system setup information such as date, time, and system passwords. To erase the RTC RAM: CLRTC 1. Turn OFF the computer and unplug the power cord. +3V_BAT GND 2. Use a metal object such as a screwdriver to short the two pins. 3. Plug the power cord and turn ON the computer. PIN 1 4. Hold down the key during the boot process and enter BIOS setup to reenter data. 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 12. COM Port header COM This header is for a serial (COM) port. Connect the serial port module cable to this header, then install the module to a slot opening at the back of the system chassis. PIN 1 DCD TXD GND RTS RI ASUS Pro A520M-C 1-3