A.1
Pin Assignments
Connector and Header List:
Description
1
SPI Pin Header
2
ATX 12V power supply connector
3
System Fan #1 connector
4
DC input Jack
5
IMVP8/9 PMBus KIT
6
HDMI #1
7
AT/ATX Mode selection
8
LVDS VESA, JEIDA format selection pin header JLVDS_VCON1
9
HDMI #2
10
VDD select for LVDS1 Panel
11
Low Voltage Differential Signaling / EDP
12
Inverter power connector
13
HD Audio Interface (LINE-OUT)
14
HD Audio Interface (MIC-IN)
15
PWRBTN# / RESET# / HDD LED / PWR LED
16
COM1 and COM2 Box Header
17
Serial ATA interface connector #1
18
M.2 KEY-M connector
19
M.2 KEY-E connector
20
Serial ATA Power connector #1
21
Coin Battery wafer box
22
Low pin count interface connector
23
16-bits General Purpose I/O Pin Header
24
COM3 and COM4 Box Header
25
USB2.0 Front panel Header
26
COMS Mode selection
27
USB3.1 GEN2 Stack connector
28
Dual port RJ45 Connector
29
M.2 KEY-B connector
30
Nano SIM Card holder
31
DDR4 SO-DIMM Socket CH-A
32
CPU FAN #1 connector
AIMB-U233 User Manual
Part Reference
SPI1_CN1
ATX12V1
SYSFAN1
DCIN1
JPMB1
HDMI1
PSON1
HDMI2
JLVDS1
LVDS_EDP1
INV1
AUDIO1
AUDIO2
JFP1
COM12
SATA1
NGFF_M1
NGFF_E1
SATAPWR1
BAT1
LPC1
GPIO1
COM34
USB34
JCMOS1
USB12
LAN1+LAN2
NGFF_B1
SIM1
DIMMA1
CPUFAN1
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