ASROCK H310M-STX Manual page 22

Serial Port Header
(for H310M-STX/COM
only)
(9-pin COM1)
(see p.1, No. 6)
Chassis Intrusion Header
(2-pin CI1)
(see p.1, No. 9)
Clear CMOS Pad
(see p.2, No. 12)
Audio Header
(5-pin AUDIO3)
(see p.1, No. 8)
20
This COM1 header
NC
RI
RTS CTS
supports a serial port
GND
DSR
TXD
module.
DTR
DCD
RXD
1
This motherboard
1
GND
supports CASE OPEN
Signal
detection feature that
detects if the chassis cove
has been removed. This
feature requires a chassis
with chassis intrusion
detection design.
Clear CMOS Pad allows you to
clear the data in CMOS. To clear
CMOS, disconnect the
power supply and short the Clear
CMOS Pad.
This Audio header allows you to
1
connect the audio cable for head-
Audio-R
phone.
Audio-L
Jack detect
GND