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ATX 12V Power Connector
(4-pin ATX12V1)
(see p.2, No. 3)
Chassis Intrusion Header
(2-pin CI1)
(see p.2, No. 23)
HDMI_SPDIF Header
(2-pin HDMI_SPDIF1)
(see p.2, No. 30)
ASRock P75 Pro3 Motherboard
Please connect an ATX 12V
power supply to this connector.
This motherboard supports
CASE OPEN detection feature
1
GND
that detects if the chassis cover
Signal
has been removed. This feature
requires a chassis with chassis
intrusion detection design.
HDMI_SPDIF header, providing
1
SPDIF audio output to HDMI
GND
SPDIFOUT
VGA card, allows the system to
connect HDMI Digital TV/
projector/LCD devices. Please
connect the HDMI_SPDIF
connector of HDMI VGA card to
this header.
27
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