MSI B75MA-E31 series User manual











T: LAN Jack
B: USB2.0 ports
USB2.0 ports
USB3.0 ports
HDMI port
T: mouse
B: keyboard
T:Line-In
M:Line- Out
B:MIC
VGA port
JPWR1
JPWR2
CPUFAN
SYSFAN2
JBAT1
JUSB3
SYSFAN1
PCI_E1
PCI_E2
PCI1
DIMM1
DIMM2
SATA4
SATA3
SATA1
SATA2
JUSB2 JUSB1
JAUD1
JUSB_PW1
JFP1
JFP2
JCI1







13.+3.3V
1.+3.3V
14.-12V
2.+3.3V
15.Ground
3.Ground
16.PS-ON#
4.+5V 17.Ground
5.Ground
18.Ground
6.+5V
19.Ground
7.Ground
22.+5V
10.+12V
20.Res
8.PWR OK
23.+5V
11.+12V
21.+5V
9.5VSB
24.Ground
12.+3.3V
4.+12V
2.Ground
3.+12V
1.Ground
1.Ground
2.+12V
3.Sensor
4.Control
1.Ground
2.+12V
3.Sensor
4.No Use
1.Ground
2.+12V
3.NoUse

3.Speaker
4.VCC5
1.Speaker
2.VCC5
1.+
3.-
10.No Pin
5.-Reset Switch
HDD LED
Power Switch
Power LED
7.+
9.Reserved
8.-
6.+
4.-
2.+

1.VCC
3.USB0-
10.NC
5.USB0+
7.Ground
9.NoPin
8.Ground
6.USB1+
4.USB1-
2.VCC
5.
USB3_TX_C_DN
4.Ground
3.USB3_RX_DP
2.USB3_RX_DN
1.Power
10.NC
9. +
USB2.0
8. -
USB2.0
7.Ground
6.USB3_TX_C_DP
20.No Pin
19.Power
18.USB3_RX_DN
17.USB3_RX_DP
16.Ground
15.USB3_TX_C_DN
14.USB3_TX_C_DP
13.Ground
12.USB2.0 -
11. +
USB2.0
1
1
1
1
1
1
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