ASRock P55 Extreme4 Quick Installation Guide - Page 30

HDMI_SPDIF Header (2-pin HDMI_SPDIF1) (see p.2 No. 41) 1 GND SPDIFOUT HDMI_SPDIF header, providing SPDIF audio output to HDMI VGA card, allows the system to con nect HDMI Digital TV/ projector/LCD devices. Please connect the HDMI_SPDIF connector of HDMI VGA card to this header. Front USB 3.0 Panel This front USB 3.0 panel can support 2 additional USB 3.0 ports besides the I/O panel. Please connect the light blue connector on the cable of this front USB 3.0 panel to the USB 3.0 header (USB3_2_3) and fasten the front USB 3.0 panel to the chassis with the bundled six screws. 2.10 Smart Switches This motherboard has three smart switches: power switch, reset switch and clear CMOS switch, allowing users to quickly turn on/off or reset the system or clear the CMOS values. Power Switch (PWRBTN) (see p.2 No. 20) Power Switch is a smart switch, allowing users to quickly turn on/off the system. Reset Switch (RSTBTN) (see p.2 No. 18) Reset Switch is a smart switch, allowing users to quickly reset the system. English Clear CMOS Switch (CLRCBTN) (see p.3 No. 16) Clear CMOS Switch is a smart switch, allowing users to quickly clear the CMOS values You are not allowed to use Clear CMOS switch function if you set up the system password. If you want to clear the CMOS values, please clean your system password in advance or refer to page 24 "Clear CMOS jumper" description instead. 30 ASRock P55 Extreme4 Motherboard