ASROCK 770 EXTREME3 User Manual page 23

HDMI_SPDIF Cable
(Optional)
A. black end
+5V
SPDIFOUT
blue
black
GND
Please connect the black end (A)
of HDMI_SPDIF cable to the
C
HDMI_SPDIF header on the
B
motherboard. Then connect the
A
white end (B or C) of
HDMI_SPDIF cable to the
HDMI_SPDIF connector of HDMI
VGA card.
B. white end (2-pin) C. white end (3-pin)
SPDIFOUT blue SPDIFOUT
GND black
2 3 2 3 2 3 2 3 2 3
blue
black
GND