ASRock B75TM-ITX User Manual - Page 33

W Audio AMP Output

Get ASRock B75TM-ITX PDF manuals and user guides View all ASRock B75TM-ITX manuals
Add to My Manuals
Save this manual to your list of manuals

Page 33 highlights

3W Audio AMP Output Wafer Header (4-pin SPEAKER1) (see p.13/15/17, No. 28) Front_RFront_R+ Front_L+ Front_L1 Please connect the chassis speaker to this header. Power LED Header (3-pin PLED1) (see p.13/15/17, No. 11) PLEDPLED+ PLED+ 1 Please connect the chassis power LED to this header to indicate system power status. The LED is on when the system is operating. The LED keeps blinking in S1/S3 state. The LED is off in S4 state or S5 state (power off). Chassis Fan Connector (4-pin CHA_FAN1) (see p.13/15/17, No. 4) FAN_SPEED_CONTROL FAN_SPEED +12V GND 1 234 Please connect a fan cable to the fan connector and match the black wire to the ground pin. CPU Fan Connectors (4-pin CPU_FAN1) (see p.13/15/17, No. 22) FAN_SPEED_CONTROL FAN_SPEED +12V GND 4 Though this motherboard 3 2 1 provides a 4-Pin CPU fan (Quiet Fan) connector, 3-Pin CPU fans can still work even without fan speed control. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3. Serial Port Header (10-pin COM1) (see p.13/15/17, No. 18) COM PWR/DCD RXD TXD DTR GND 1 DSR RTS CTS COM PWR/RI NC This COM1 header supports a serial port module. 33

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
33
Power LED Header
(3-pin PLED1)
(see p.13/15/17, No. 11)
3W Audio AMP Output
Wafer Header
(4-pin SPEAKER1)
(see p.13/15/17, No. 28)
Please connect the chassis
speaker to this header.
Please connect the chassis
power LED to this header
to
indicate system power
status. The LED is on when
the system is operating. The
LED keeps blinking in S1/S3
state. The LED is off in S4
state or S5 state (power off).
Front_L+
Front_R-
1
Front_R+
Front_L-
1
PLED+
PLED+
PLED-
Chassis Fan Connector
(4-pin CHA_FAN1)
(see p.13/15/17, No. 4)
Please connect a fan cable
to the fan connector and
match the black wire to the
ground pin.
FAN_SPEED
FAN_SPEED_CONTROL
GND
+12V
1
2
3
4
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.13/15/17, No. 22)
Though this motherboard
provides a 4-Pin CPU fan
(Quiet Fan) connector, 3-Pin
CPU fans can still work even
without fan speed control. If
you plan to connect a 3-Pin
CPU fan, please connect it
to Pin 1-3.
FAN_SPEED
FAN_SPEED_CONTROL
+12V
GND
1
2
3
4
Serial Port Header
(10-pin COM1)
(see p.13/15/17, No. 18)
This COM1 header supports
a serial port module.
RXD
RTS
TXD
DTR
GND
CTS
COM PWR/RI
NC
1
DSR
COM PWR/DCD