ASROCK H310D4-P1 User Manual page 23

2.5W Audio Amp Output
Header
(2-pin MONO1)
(see p.6, No. 4)
ROM Recovery
Header
(7-pin ROM_R)
(see p.6, No. 6)
18
1
MONO_OUT+
MONO_OUT-
2
SPI_CLK
SPI_MISO
SPI_MOSI
SPI_CS0#
1
SPI_CS#_R
+3P3VSB
GND
Please connect the chassis
speaker to this header.
This ROM Recovery Connector
allows qualified technicians to
reload firmware into the SPI boot
flash in case there is problem with
the data.