Asus Pro B660M-C D4 - SATA 6 Gb;s Ports; USB Connectivity; Chassis and CMOS Headers

1-3
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 SATA cables.
8. USB 3.2 Gen 1 connector (supports USB Type-C
®
)
The USB 3.2 Gen 1 connector (USB Type-C
®
) allows you to connect a
USB 3.2 Gen 1 module for an additional USB 3.2 Gen 1 Type-C
®
port.
The connector provides a data transfer speed of up to 5 Gb/s.
The USB 3.2 Gen 1 module is purchased separately.
9. 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.
10. USB 2.0 headers
The USB 2.0 headers allow you to connect a USB module 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!
The USB 2.0 module is purchased separately.
11. 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
header. The chassis intrusion sensor or switch sends a high-level signal to this
header when a chassis component is removed or replaced. The signal is then
generated as a chassis intrusion event.
12. 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:
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.
SBU2
SBU1
CC1
VBUS
RX1-
RX1+
GND
TX1-
TX1+
VBUS
VBUS
TX2+
TX2-
GND
RX2+
RX2-
GND
D-
D+
CC2
USB3+5V
IntA_P3_SSRX-
IntA_P3_SSRX+
GND
IntA_P3_SSTX-
IntA_P3_SSTX+
GND
IntA_P3_D-
IntA_P3_D+
GND
PIN 1
USB3+5V
IntA_P4_SSRX-
IntA_P4_SSRX+
GND
IntA_P4_SSTX-
IntA_P4_SSTX+
GND
IntA_P4_D-
IntA_P4_D+
USB+5V USB_P7- USB_P7+ GND NC
USB+5V
USB_P8-
USB_P8+
GND
PIN 1
+5VSB_MB Chassis Signal GND
CHASSIS
CLRTC
+3V_BAT GND
PIN 1
Pro B660M-C D4