Asus PRIME H310M2 R2.0 Manual page 11

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 <Del> key during the boot process and
enter BIOS setup to re-enter 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.
Speaker connector (4-pin SPEAKER)
The 4-pin connector is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
System panel connector (10-1 pin F_PANEL)
This connector supports several chassis-mounted functions.
USB 2.0 connectors (10-1 pin USBE12, USBE34, USB78)
Connect a USB module cable to any 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.
USB 3.1 Gen 1 (up to 5Gb/s) 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.
Chassis intrusion header (4-1 pin CHASSIS)
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.
LPT connector (26-1 pin LPT)
The LPT (Line Printing Terminal) connector supports devices such as a printer.
LPT standardizes as IEEE 1284, which is the parallel port interface on IBM PC-
compatible computers.
ASUS PRIME H310M2 R2.0
CLRTC
PIN 1
1-3