mITX-4125A (MGMLJAI) Quick Reference Guide/
SODIMM1
CPU
SODIMM2
1 2 3 4
5
67
8
910
11
12
13
15
16 14
17
18
19
20
21222324
25
26
27
28
29
30
32
37
34
33
31
35
36
38
39
40
41
42
43
44
System Panel Header/ 前面板
1 HDD LED+
3 HDD LED-
5 GND
1
109
2
Power Connector/ 电源
1 GND
2 GND
3 +12V
4 +12V
4
3
2
1
1
109
2
USB 3.0 Header
1 20
10 11
4 GND
7 GND
10 OC
13 GND
16 GND
USB 2.0 Header
4 USB DY-
6 USB DY+
7 GND
TPM Module Connector
12
1314 1 LPC_CLK0_B
2 3VDUAL
4 VCC3
5 LPC_LAD0
6 IRQ_SERIAL
7 LPC_LAD1
9 LPC_LAD2
10 NC
11 LPC_LAD3
12 GND
14 GND
Rear I/O Connector/
Off
State Description
Amber On 1Gbps data rate
Green On 100Mbps data rate
10Mbps data rate
Speed LED
LED
23
4 5
1
7
6
89
10
11
12
Hard Drive Power Connectornnector
1
4
1 +12V
2 GND
3 GND
4 VCC
SATA Connector/SATA
1
7
7
1
7 1
1 GND
4 GND
7 GND
2 NDCD-
5 NDSR-
6 GND
10 RI-
1
910
2
Serial Port Cable Connector
1 SOGPO1
2 SOGPI1
3 SOGPO2
4 SOGI2
5 SOGPO3
6 SOGPI3
7 SOGPO4
9 SMB_CLK
11 VCC
12 GND
11
122
1
GPIO Connector
LVDS
1 VCC3
2 VCC
3 VCC3
4 VCC
5 SPC0
6 SPD0
7 GND
9 A1P_C
10 A0P_C
11 A1M_C
12 A0M_C
13 GND
14 GND
15 A3P_C
16 A2P_C
17 A3M_C
19 GND
20 GND
21 A5P_C
22 A4P_C
23 A5M_C
24 A4M_C
25 GND
26 GND
27 A7P_C
29 A7M_C
30 A6M_C
31 GND
32 GND
33 CLK2P_C
34 CLK1P_C
35 CLK2M_C
36 CLK1M_C
37 GND
39 +12V
40 +12V
40
391
2
2 LED VCC
4 LED VCC
1
910
2
RAID LED Header
6 LED VCC
10 LED VCC
91
2 10
Front Audio Connector/
1 MIC_L
2 GND
3 MIC_R
6 GND
7 FAUDIO_JD
10 GND
1 VCC_LVDS
4 GND
5 +12V_LVDS
15
Embedded Display Port Connector
1 GND
2 GND
3 eDP_0-
4 eDP_3-
5 eDP_0+
6 eDP_3+
7 GND
9 eDP_1-
10 GND
11 eDP_1+
13 GND
15 eDP_2-
16 GND
17 eDP_2+
19 VCC_LVDS
20 VCC3_LVDS
41
1
219
20
2 GND
2 1
CPU/System FAN/ 风扇
4
1
1 GND
2 +12V
2 GND
2
1
TPM Module
2
2260
2240
2280
1
M.2 Module
1
2
3
4
4
3
5
1
6
2
Pin No.
1
2
3
4
5
6
Definition
VCC
RI1-/5V/12V
NRI1-
RI1-/5V/12V
+12V
RI1-/5V/12V
Pin No.
1
2
3
4
5
6
Definition
VCC
RI2-/5V/12V
NRI2-
RI2-/5V/12V
+12V
RI2-/5V/12V
Pin No.
1
2
3
Definition
TXD5 AT Mode
TXD5
TXD5 AT
800x600
18bit
1024x768
18bit
1024x768
24bit
1024x600
18bit
1280x800
18bit
1280x960
18bit
1280x1024
24bit
1366x768
18bit
1366x768
24bit
1440x900
18bit
1400x1050
24bit
1600x900
24bit
1680x1050
24bit
1600x1200
24bit
1920x1080
24bit
1920x1200
24bit
Jumper Setting Resolution Jumper Setting Resolution
Pin No.
1
2
3
4
5
6
Definition
RXD232
RXD1
RXD422
RXD1
RXD485
RXD1
Pin No.
1
2
3
4
5
6
Definition
RXD232
RXD2
RXD422
RXD2
RXD485
RXD2
6 5
2 1
6 5
2 1
6 5
2 1
6
5
2
1
6
5
2
1
6
5
2
1
6
5
2
1
6
5
2
1
6
5
2
1
6
5
2
1
6
5
2
1
6
5
2
1
JRS14
JRS13
JRS12
JRS11
JRS24
JRS23
JRS22
JRS21
