![](/images/backgrounds/293827/asrock-imb-a180-owner-s-manual20x1.png)
CPU Fan Connector
(see p.8, No. 9)
+12V CPU_FAN_SPEED
GND FAN_SPEED_CONTROL
Though this motherboard provides a
Chassis Fan Connector
(see p.8, No. 21)
GND +12V
CHA_FAN_SPEED
Please connect a fan cable to the fan connector and match the black wire to the ground pin.
3W Audio AMP Output Wafer |
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| PIN | Signal Name | ||
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| 1 | SPK L- | ||
(see p.8, No. 31) |
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| 1 | 2 | SPK L+ | |
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| 3 | SPK R+ |
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| 4 | SPK R- |
Serial Port Header
(see p.8, No. 26)
(see p.8, No. 25)
(see p.8, No. 24)
(see p.8, No. 23)
RRXD1
DDTR#1
DDSR#1
CCTS#1
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
These COM headers support serial port modules.
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