User manual

Chapter 2 Installation
EC7-1817LNAR - 9 -
5. JLCD1: Select LCD Operating Voltage (Pitch: 2.54mm)
Different LCD screens have different voltages; the board provides two voltage
options, +3.3V and +5V. Only when the selected LCD voltage is in accord with the
LCD screen operating voltage in use, can the LCD screen operate normally. Please set
as follows:
Setup Function
1-2 Short +3.3V(Default)
JLCD1
2-3 Short +5V
Install the System Memory
The board provides two 204Pin DDRIII SO-DIMM slots (DIMM1/DIMM2). Please
pay attention to the following issues when installing the memory banks:
 Open the buckles on both sides of the memory slot. When installing, align the
notch of the memory bank with that of the memory slot and gently insert the
module into the slot;
 The memory of 1.5V DDRIII 1600MHz supported by Intel® Chipset can be used;
the maximum memory capacity supported by the board is up to 16GB;
 It is recommended to use the memory bank with SPD to ensure stable operation.
Serial Port
The board provides two 2x5Pin serial ports (Pitch: 2.54mm), supporting RS-232
mode; the pin definitions are as follows:
Pin Signal Name
1 DCD#
2 RXD
3 TXD
4 DTR#
5 GND
6 DSR#
7 RTS#
8 CTS#
9 RI#
COM1/COM2
10 NA