Asus PRIME B450M-K Users Manual English - Page 11

M.2 socket 3 This socket allows you to install M.2 (NGFF) SSD modules. M.2(SOCKET3) This M.2 socket supports M Key and 2242/2260/2280 storage devices. AMD B450 Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1~4) These connectors connect to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0 Gb/s signal cables. System panel connector (10-1 pin F_PANEL) This connector supports several chassis-mounted functions. Speaker connector (4-pin SPEAKER) The 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you hear system beeps and warnings. SPEAKER +5V GND GND Speaker Out PIN 1 USB 3.1 Gen 1 (up to 5Gbps) connector (20-1 pin U31G1_12) Connect a USB 3.1 Gen 1 module to this connector for additional USB 3.1 Gen 1 front or rear panel ports. This connector complies with USB 3.1 Gen 1 specifications and provides faster data transfer speeds of up to 5 Gbps, faster charging time for USB-chargeable devices, optimized power efficiency, and backward compatibility with USB 2.0. USB 2.0 connectors (10-1 pin USB34, USB56) Connect a USB module cable to either of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specifications and support up to 480Mbps connection speed. Clear RTC RAM (2-pin CLRTC) 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: 1. Turn OFF the computer and unplug the power cord. 2. Use a metal object such as a screwdriver to short the two pins. 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. +3V_BAT GND CLRTC PIN 1 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. ASUS PRIME B450M-K 1-3