Commell LE-370 User manual

LE-37O
3.5 inch Motherboard
User’s Manual
Edition 1.2
2021/05/05

LE-37O User’s Manual
-1-
Copyright
Copyright 2021, all rights reserved. This document is copyrighted and all rights are reserved.
The information in this document is subject to change without prior notice to make
improvements to the products.
This document contains proprietary information and protected by copyright. No part of this
document may be reproduced, copied, or translated in any form or any means without prior
written permission of the manufacturer.
All trademarks and/or registered trademarks contains in this document are property of their
respective owners.
Disclaimer
The company shall not be liable for any incidental or consequential damages resulting from
the performance or use of this product.
The company does not issue a warranty of any kind, express or implied, including without
limitation implied warranties of merchantability or fitness for a particular purpose.
The company has the right to revise the manual or include changes in the specifications of
the product described within it at any time without notice and without obligation to notify any
person of such revision or changes.
Trademark
All trademarks are the property of their respective holders.
Any questions please visit our website at TUhttp://www.commell.com.twUT

LE-37O User’s Manual
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Packing List:
Please check the package content before you starting using the board.
1 x LE-37O 3.5 inch Miniboard
1 xUSB2.0 cable
(OALUSBA-3 / 1040173) (Optional)
1 x Audio cable
(OALPJ-HDUNB / 1040123)
1 x PS/2 Keyboard & Mouse cable
(OALPS2/KM / 1040131) (Optional)
1 x Dual COM cable
(OALES-BKU2NB / 1040090)
1 x SATA Power Cable
(OALSATA15-2PJ / 1040613)
+
_
1 xDC Input Power Cable
(OALDC-B / 1040513)
1 x Cooler Fan
(OHSF-37O / 2181010043)
1 x Driver CD
(Including User’s Manual)
2 x SATA Cable
(OALSATA3-L) / (1040529)

LE-37O User’s Manual
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Index
Chapter 1 <Introduction>..................................................................4
1.1 <Product Overview>............................................................4
1.2 <Product Specification> ......................................................5
1.3 <Block Diagram>.................................................................6
Chapter 2 <Hardware setup> ........................................................... 7
2.1 <Connector Location and Reference> ................................7
2.1.1 <Internal connectors list> ..........................................8
2.1.2 <External connectors list>.........................................8
2.2 <Jumper Location and Reference> .....................................9
2.2.1 <Jumper list> ............................................................ 9
2.2.2 <Clear CMOS and Power on type selection>..........10
2.3 <Installing the Memory> .................................................... 11
2.4 <I/O interface> ..................................................................12
2.4.1 <Serial ATA interface>.............................................12
2.4.2 <Ethernet interface>................................................12
2.4.3 <Display interface> .................................................13
2.4.4 <Serial Port interface> ............................................15
2.4.5 <USB interface>......................................................17
2.4.6 <Audio interface>....................................................18
2.4.7 <Expansion slot>.....................................................19
2.4.8 <Front panel switch and indicator> .........................20
2.4.9 <GPIO ,SMBus and Other Interface>......................21
2.5 <Power supply> ................................................................24
2.5.1 <Power input>.........................................................24
2.5.2 <Power output>.......................................................24
Appendix A <Flash BIOS>.............................................................. 25
Appendix B <LCD Panel Type select> ........................................... 26
Appendix C <Programmable Watch Dog Timer>............................ 27
Appendix D <Hardware Monitor> ................................................... 29
Appendix E <Programmable GPIO> ..............................................30
Appendix F <RAID Setting> ........................................................... 31
Contact information ........................................................................ 32

LE-37O User’s Manual
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Chapter 1 <Introduction>
1.1 <Product Overview>
LE-37O is a 3.5” Motherboard which supports 11th Generation Intel® Core™ U-Series
processors, integrated Iris® Xe Graphics, DDR4 memory, Realtek High Definition Audio, Intel
Gigabit LAN, USB3.2 Gen2, SATA3 with AHCI function for a system.
New feature for Tiger Lake UP3
Tiger Lake UP3 processors are based on the 10nm process node, and offer long-life
availability. They have a PCIe Gen4 for M.2 2280 slot, and new Intel Iris® Xe Graphics with up
to 96 EUs.
All in One multimedia solution
The board provides MiniPCIe slot (support mSATA), M.2 2280 slot and M.2 2230 slot.
Tiger Lake support Windows10 version 2004 64bit and Linux kernel 5.8
Intel recommends using Windows 10 version 2004 64bit. It may lose some drivers if you
use other Windows version.

LE-37O User’s Manual
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1.2 <Product Specification>
System
Processor
Intel® Tiger Lake UP3 Processor, FCBGA1449 package
Memory
1 x DDR4 SO-DIMM 3200 MHz up to 32GB,
Support Non-ECC, unbuffered memory
Watchdog Timer
Generates a system reset with internal timer for 1min/s ~ 255min/s
Real Time Clock
Chipset integrated RTC with onboard lithium battery
Expansion
1 x MiniPCIe (support mSATA),
1 x M.2 (Key E 2230) for Wi-Fi and Bluetooth
1 x M.2 (Key M 2280) Slot support PCIe Gen4
Graphics
Chipset
Intel® Iris® Xe Graphics
Display Interface
1 x LVDS (Note1) ,1 x DisplayPort (Note2), 1 x HDMI, 1 x VGA
LAN
Chip
1 x Intel® I225-LM Gigabit LAN
1 x Intel® I219-LM Gigabit PHY LAN (Support iAMT15.0)
I/O
Serial ATA
2 x SATA3 (CN_SATA3-1 cannot use when Mini_card change to mSATA)
Audio
Realtek ALC262 HD Audio
Digital I/O
Programmable 8-bit GPIO with 12 pin-header
Internal I/O
2 x SATA3, 2 x USB2.0, 2 x RS232, 2x RS232/485/422
1 x LVDS, 1 x LCD inverter connector, 1 x GPIO,
1 x Audio, 1 x PS/2, 1 x SMBus
Rear I/O
1 x DisplayPort(optional), 1 x VGA , 1 x HDMI,
4 x USB3.2 Gen2, 2 x LAN
Mechanical & Environmental
Power Requirement
DC input 9~35V
Size
146mm x 101mm (L x W)
Temperature
Operating within 0°C~60°C (32°F~140°F)
Storage within -20°C~80°C (-4°F~176°F)
Relative Humidity
10%~90%, non-condensing
Note1: Onboard 18/24-bit single/dual channel +3.3V/ +5V/ +12V LVDS.
Note2: Add ADP-3355 supports 2nd VGA or Add ADP-3460 supports 2nd LVDS, please contact with our
sales for OEM version.

LE-37O User’s Manual
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1.3 <Block Diagram>
LVDS
PTN3460
DP
HDMI
DDR4 3200 SO-DIMM
1 x M.2 KEY M 2280
1 x DDR4 2400 SO-DIMM
I219
I225
4 x USB3.2 Gen2
2 x USB2.0
mSATA
1 x mini PCIe
1 x M.2 (Key E)
2 x SATA
ALC262
2 x RS232
2 x RS232/RS422/RS485
1 x PS/2
GPIO
CPUFAN
SYSFAN
Super I/O
NCT6126D
Tiger Lake UP3
Processor

LE-37O User’s Manual
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Chapter 2 <Hardware setup>
2.1 <Connector Location and Reference>
USB2 I225 I219 USB1 DP VGA
LAN2 LAN1 HDMI
JVLCD
CN_PS2
JFRNT
CN_INV
DC_OUT
MINI_CARD
M.2 (KEY E)
CN_LVDS SATA3-1 CN_USB
SATA3-2 CPUFAN SYSFAN
CN_DIO
CN_COM3/4
CN_COM1/2
CN_AUDIO
DDR4
CN_BAT CN_SMBus
M.2 (KEY M)

LE-37O User’s Manual
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2.1.1 <Internal connectors list>
Connector
Function
DDR4
260-pin DDR4 SO-DIMM slot
SATA3-1/2
7-pin SATA3 connector
CN_AUDIO
5 x 2-pin audio pin header
CN_DIO
6 x 2-pin General Purpose In/Out pin header
CN_LVDS
20 x 2-pin LVDS connector
CN_INV
5-pin LCD inverter connector
CN_COM1/2
20-pin RS232 connector
CN_COM3/4
20-pin RS232/422/485 connector
CN_USB
5 x 2-pin USB 2.0 pin header
CN_PS2
5 x 2-pin PS/2 pin header
CN_SMBus
5-pin SMBus connector
CPUFAN
4-pin CPU fan connector
SYSFAN
4-pin System fan connector
JFRNT
5 x 2-pin front panel switch/indicator pin header
MINI_CARD
52-pin MiniPCIe card slot
M2
75-pin M.2 Key E slot
M2_M
75-pin M.2 Key M slot
DC_OUT
4-pin SATA Power connector
DC_IN
2-pin power input Terminal Block
2.1.2 <External connectors list>
Connector
Function
VGA
DB9 connector
HDMI-DP
DisplayPort and HDMI dual layer connector
USB1
2 x USB3.2 Gen2 connector
USB2
2 x USB3.2 Gen2 connector
LAN1
RJ45 connector (I219)
LAN2
RJ45 connector (I225)

LE-37O User’s Manual
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2.2 <Jumper Location and Reference>
2.2.1 <Jumper list>
Jumper
Function
JAT
Power mode select
JRTC
CMOS Normal/Clear Setting
JVLCD
Panel Voltage Setting
JMSATA
MiniCard mSATA Setting
JP1/2
COM1 and CN_COM2 9-pin setting
JVLCD JAT JMSATA
JRTC
JP2
JP1

LE-37O User’s Manual
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2.2.2 <Clear CMOS and Power on type selection>
JRTC: Clear CMOS data jumper
Jumper settings
Function
1-2
Clear CMOS
2-3
Normal (Default)
JAT: AT/ATX mode select jumper
Jumper settings
Function
1-2
AT mode
2-3
ATX mode (Default)
JAT
3 1
JRTC
3 1

LE-37O User’s Manual
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2.3 <Installing the Memory>
LE-37O has 260-pin DDR4 SODIMM support up to 32GB of memory capacity and 1.2
Voltage. The memory frequency supports 3200 MHz. Only Non-ECC memory is supported.
In the process, the board must be powered off.
1. Put the memory tilt into the slot. Note the Memory notch key aligned slot key.
2. Then press down till lock into the mounting notch.
3. To remove the memory, push outward on both sides of the latch.
Key
Mounting notch
Press down
Latch

LE-37O User’s Manual
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2.4 <I/O interface>
2.4.1 <Serial ATA interface>
Support RAID0, RAID1
SATA 1/2: SATA3 7-pin connector
2.4.2 <Ethernet interface>
The board provides I219-LM and I225-LM Gigabit Ethernet which supports WOL
on rear I/O. It supports Intel® AMT 15.0 feature on I219-LM.
(Note that the CPU must support vPro technology.)
Pin
Signal
1
GND
2
TX+
3
TX-
4
GND
5
RX-
6
RX+
7
GND
I225-LM I219-LM
1 7
SATA3-2 SATA3-1

LE-37O User’s Manual
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2.4.3 <Display interface>
Based on the 11th Gen CPU with built-in Intel® Iris® Xe Graphics, the DisplayPort
resolution up to 3840x2160 @ 60Hz or 4096x2304 @ 60Hz, the HDMI up to
4096x2304 @ 24Hz and LVDS up to 1920x1200 @ 60Hz supports single bus or
dual bus LVDS signaling with color depths of 18 bits or 24 bits. About select LCD
Panel Type in BIOS, please refer Appendix B.The built-in HD Graphics support
Quad display function with clone mode and extended mode.
Note: 1. The HDMI-DP dual layer connector can be changed HDMI & CN_DP,
CN_DP function for use “ADP-3355” VGA module.
(The VGA resolution is up to 2048x1536 @50Hz.)
2. ADP-3355 no need install extra driver. Here is Setup manual Link.
CN_LVDS
40
2
39
1
5
1
CN_INV
JVLCD
2
6
1
5
DP
HDMI

LE-37O User’s Manual
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CN_LVDS: LVDS 40-pin connector (Model: HIROSE DF13-40DP-1.25V compatible)
Pin
Signal
Pin
Signal
2
Set by JVLCD
1
Set by JVLCD
4
Detect (Active low)
3
GND
6
A_LVDS_0-
5
B_LVDS_0-
8
A_LVDS_0+
7
B_LVDS_0+
10
GND
9
GND
12
A_LVDS_1-
11
B_LVDS_1-
14
A_LVDS_1+
13
B_LVDS_1+
16
GND
15
GND
18
A_LVDS_2-
17
B_LVDS_2-
20
A_LVDS_2+
19
B_LVDS_2+
22
GND
21
GND
24
A_LVDS_CLK-
23
B_LVDS_3-
26
A_LVDS_CLK+
25
B_LVDS_3+
28
GND
27
GND
30
A_LVDS_3-
29
B_LVDS_CLK-
32
A_LVDS_3+
31
B_LVDS_CLK+
34
GND
33
GND
36
LVDS_DDCSCL
35
NC
38
LVDS_DDCSDA
37
NC
40
NC
39
NC
Note: Pin4 only need to be connected to GND
CN_INV: LVDS 5-pin Backlight power connector
Pin
Signal
1
12V
2
Backlight Control
3
GND
4
GND
5
Enable Backlight
JVLCD: LVDS panel power select jumper
Jumper settings
Function
1-2
3.3V (Default)
3-4
5V
5-6
12V
Effective patterns of connection: 1-2 / 3-4 / 5-6
Other may cause damage

LE-37O User’s Manual
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2.4.4 <Serial Port interface>
COM1/2: RS232 20-pin header (Pitch 2.54 x 1.27mm)
Pin
Signal
Pin
Signal
1
DCD1
2
RXD1
3
TXD1
4
DTR1
5
GND
6
DSR1
7
RTS1
8
CTS1
9
RI1
10
NC
11
DCD2
12
RXD2
13
TXD2
14
DTR2
15
GND
16
DSR2
17
RTS2
18
CTS2
19
RI2
20
Key
JP1 JP2
2
5
6
1
2
5
6
1
10
1
2
19
20
CN_COM1/2
1
2
19
20
CN_COM3/4

LE-37O User’s Manual
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COM3/4: RS232/422/485 20-pin header (Pitch 2.54 x 1.27mm)
Pin
Signal
Pin
Signal
1
DCD1/ 422TX-/ 485-
2
RXD1/ 422TX+/ 485+
3
TXD1
4
DTR1
5
GND
6
DSR1/ 422RX+
7
RTS1
8
CTS1/ 422RX-
9
RI1
10
NC
11
DCD2/ 422TX-/ 485-
12
RXD2/ 422TX+/ 485+
13
TXD2
14
DTR2
15
GND
16
DSR2/ 422RX+
17
RTS2
18
CTS2/ 422RX-
19
RI2
20
Key
COM3 & COM4
RS-232/422/485 can set by BIOS.
You can find the setting from
Advanced-> Motherboard Advanced menu-> Super IO configuration->
Serial Port configuration->Interface
If you want to use RS485, please follow below step before connection. .
COM1 RTX- Data- : short Pin1& Pin8
COM1 RTX+ Data+ : short Pin2& Pin6
COM2 RTX- Data-: short Pin1& Pin8
COM2 RTX+ Data+: short Pin2& Pin6
JP1, JP2: COM1, COM2 pin-9 setting
Jumper settings
Function
1-2
5V
3-4
12V
5-6
RI (Default)
Effective patterns of connection:
1-2 / 3-4 / 5-6
Other may cause damage

LE-37O User’s Manual
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2.4.5 <USB interface>
CN_USB: Front panel USB2.0 10-pin header (Pitch 2.54mm)
Pin
Signal
Pin
Signal
1
5VSB
2
5VSB
3
DATA0-
4
DATA1-
5
DATA0+
6
DATA1+
7
GND
8
GND
9
GND
10
Key
CN_USB
9
2
1
USB3.2 Gen2 USB3.2 Gen2

LE-37O User’s Manual
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2.4.6 <Audio interface>
CN_AUDIO: Front panel audio 10-pin header (Pitch 1.27mm x 2.54mm)
Pin
Signal
Pin
Signal
1
MIC_L
2
GND
3
MIC_R
4
NC
5
FP_OUT_R
6
MIC_DETECT
7
SENSE
8
Key
9
FP_OUT_L
10
FP_OUT_DETECT
2
9
10
1
CN_AUDIO
CN_USB2-2

LE-37O User’s Manual
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2.4.7 <Expansion slot>
MINI_CARD has some special design to compatible our mini-PCIe card.
MINI_CARD supports mSATA by JMSATA
M2 (Key E) with 2x PCI Express x1 support WI-FI and Bluetooth Module
M2-M (Key M) with 4x PCIe Gen4, support NVMe SSD.
JMSATA: Setting MINI_CARD to support PCIe/mSATA
Jumper settings
Function
1-2
Support mSATA
2-3
Normal operation (Default)
CN_SATA3-1 cannot use when Mini_card change to mSATA
3 1
JMSATA
M.2 (KEY E)
MINI_CARD
M.2 (KEY M)