ASRock B75M R2.0 User Manual - Page 35

Please connect an ATX 12V

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ATX 12V Power Connector (4-pin ATX12V1) (see p.13, No. 2) Serial port Header (9-pin COM1) (see p.13, No. 25) Please connect an ATX 12V power supply to this connector. This COM1 header supports a serial port module. Chassis Intrusion Header (2-pin CI1) (see p.13, No. 27) 1 GND Signal This motherboard supports CASE OPEN detection feature that detects if the chassis cover has been removed. This feature requires a chassis with chassis intrusion detection design. 35

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35
ATX 12V Power Connector
Please connect an ATX 12V
(4-pin
ATX12V1)
power supply to this connector.
(see p.13,
No. 2)
Serial port Header
This COM1 header supports a
(9-pin COM1)
serial port module.
(see p.13,
No. 25)
Chassis Intrusion Header
This motherboard supports
(2-pin CI1)
CASE OPEN detection feature
(see p.13,
No. 27)
that detects if the chassis cover
has been removed. This feature
requires a chassis with chassis
intrusion detection design.
1
Signal
GND