
vii AIMB-U233 User Manual
Contents
Chapter 1 General Information ............................1
1.1 Introduction ............................................................................................... 2
1.2 Features .................................................................................................... 2
1.3 Specifications ............................................................................................ 2
1.3.1 System .......................................................................................... 2
1.3.2 Memory ......................................................................................... 2
1.3.3 Input/Output .................................................................................. 2
1.3.4 Graphics........................................................................................ 2
1.3.5 Ethernet LAN ................................................................................ 3
1.3.6 Industrial Features ........................................................................ 3
1.3.7 Mechanical and Environmental Specifications.............................. 3
1.4 Jumpers and Connectors .......................................................................... 4
Table 1.1: Connector / Header List:............................................. 4
1.5 Board Layout: Jumper and Connector Locations...................................... 5
Figure 1.1 Jumper and Connector Locations............................... 5
Figure 1.2 Jumper and Connector Locations............................... 6
1.6 AIMB-U233 Board Diagram ...................................................................... 6
Figure 1.3 AIMB-U233 Board Diagram........................................ 6
1.7 Safety Precautions .................................................................................... 7
1.8 Jumper Options......................................................................................... 7
1.8.1 Setting Jumpers ............................................................................ 7
1.8.2 CMOS Mode Selection (JCOMS1) ............................................... 8
Table 1.2: CMOS Mode Selection (JCOMS1) ............................. 8
1.8.3 LVDS Panel Voltage Selection Header (JLVDS1) ........................ 8
Table 1.3: VDD select for LVDS1 Panel (JLVDS1) ..................... 8
1.8.4 ATX/AT Mode Selection (PSON1) ................................................ 8
Table 1.4: ATX/AT Mode selection (PSON1) .............................. 8
Chapter 2 Connecting Peripherals ......................9
2.1 Introduction ............................................................................................. 10
2.2 LAN and USB Ports (LAN12, USB12/USB34) ........................................ 10
Table 2.1: LAN LED Indicators .................................................. 10
2.3 DC Input Connector (DCIN1) .................................................................. 11
2.4 Serial Ports (COM1, COM2, COM3, COM4)........................................... 11
2.5 Display Port Connector (HDMI 1/2)......................................................... 12
2.6 System Fan (SYSFAN1) ......................................................................... 12
2.7 CPU FAN (CPUFAN1) ............................................................................ 13
2.8 Front Panel Connectors (JFP1) .............................................................. 13
2.8.1 ATX Soft Power Switch (JFP1/RESET) ...................................... 14
2.8.2 Reset (JFP1/RESET).................................................................. 14
2.8.3 HDD LED (JFP1/HDDLED)......................................................... 14
2.8.4 Power LED Header (JFP1/PWR_LED)....................................... 14
Table 2.2: ATX Power Supply LED Status ................................ 14
2.9 HD Audio Interface LINE-OUT / Mic-In (AUDIO1 / AUDIO2) .................. 15
2.10 Serial ATA Interface (SATA1 and SATAPWR1) ..................................... 15
2.11 AT/ATX Mode Selection Connector (PSON1)......................................... 16
2.12 SPI Flash Connector (SPI_CN1)............................................................. 16
2.13 Backlight Inverter Power Connector (INV1) ............................................ 17
2.14 LVDS / eDP Panel Connector (LVDS_EDP1), BOM Options ................. 17
2.15 LVDS Panel Voltage Selection Header (JLVDS1) .................................. 18
2.16 General Purpose I/O Connector (GPIO1) ............................................... 18
2.17 CMOS Battery Connector (BAT1) ........................................................... 19
2.18 DDR4 SODIMM (DIMMA1) ..................................................................... 19