Commell LE-37P User manual

LE-37P
3.5 inch Motherboard
User’s Manual
Edition 1.1
2021/11/18

LE-37P 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 TU http://www.commell.com.twUT

LE-37P User’s Manual
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Packing List:
Please check the package content before you starting using the board.
Appendix G
1 x LE-37P 3.5 inch Miniboard
(Include cooler fan)
1 x USB2.0 cable
(OALUSBA-3 / 1040173) (Optional)
1 x Audio cable
(OALPJ-HDUNB / 1040123)
1 x Dual COM cable
(OALES-BKU2NB / 1040090)
1 x SATA Power Cable
(OALSATA15-2PJ / 1040613)
1 x Driver CD
(Including User’s Manual)
2 x SATA Cable
(OALSATA3-L) / (1040529)
1 x USB3.2 Gen2 cable
(OALUSBE-USBC-L30NB / 1040682) (Optional)
(Type E to Type C)

LE-37P 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 <Memory Setup>.................................................................9
2.3 <Jumper Location and Reference>...................................10
2.3.1 <Jumper list> ..........................................................10
2.3.2 <Clear CMOS and Power on type selection>..........11
2.4 <I/O interface> ..................................................................12
2.4.1 <Serial ATA interface>.............................................12
2.4.2 <Ethernet interface>................................................13
2.4.3 <Display interface> .................................................13
2.4.4 <Serial Port interface> ............................................15
2.4.5 <USB interface>......................................................18
2.4.6 <Audio interface>....................................................19
2.4.7 <Expansion slot>.....................................................20
2.4.8 <Front panel switch and indicator> .........................21
2.4.9 <GPIO and Other interface>...................................22
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
Appendix G <Cooler fan>...............................................................32
Contact information........................................................................33

LE-37P User’s Manual
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Chapter 1 <Introduction>
1.1 <Product Overview>
LE-37P is a 3.5” Motherboard which supports Tiger Lake/11th Gen H Processors,
integrated UHD 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 H
Tiger Lake/11th Gen H Processors are based on the 10nm SuperFin process, and offer
long-life availability. They have Intel UHD Graphics up to 32 EUs.
All in One multimedia solution
The board provides one MiniPCIe slot ( support mSATA), one M.2 2230 slot, two M.2 2280
slot (PCIe Gen4).
Tiger Lake support Windows10 version 20H2 64bit and Linux kernel 5.8
Intel recommends using Windows 10 version 20H2 64bit. It may lose some drivers if you
use other Windows version.

LE-37P User’s Manual
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1.2 <Product Specification>
System
Processor
Tiger Lake/11th Gen H Processor
FCBGA1787 package
Chipset
Intel® QM580E / RM590E (TGL-H Xeon CPUs have to use RM590E)
Memory
1 x DDR4 SO-DIMM 3200 MHz up to 32GB,
Support Non-ECC, unbuffered memory
(TGL-H Xeon CPUs can support ECC 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 with SIM Slot (support mSATA)
1 x M.2 2280 Key M support PCIe Gen4 and SATA(M.2_NVME1)
1 x M.2 2280 Key M support PCIe Gen4 (M.2_NVME2)
1 x M.2 2230 Key E for Wi-Fi and Bluetooth
Graphics
Chipset
Intel® 11th Gen integrated UHD Graphics
Display Interface
1 x LVDS (Note1), 1 x HDMI, 1 x DisplayPort(Note2)
LAN
Chip
1 x Intel® I219-LM Gigabit PHY LAN (Support iAMT 15.0)
1 x Intel® I225-LM Gigabit LAN (up to 2.5GbE)
I/O
Serial ATA
2 x SATA3
Audio
RealtekALC888S HDAudio
Internal I/O
2 x SATA3, 2 x RS232, 2 x RS232/RS422/RS485
2 x USB2.0, 1 xAudio, 1 x SMBus, 1 x GPIO
1 x USB3.2 Gen2 (Type E), 1 x LVDS, 1 x LCD inverter connector, ,
Rear I/O
1 x HDMI, 1 x DisplayPort, 2 x LAN, 6 x USB3.2 Gen2, 1 x DC Jack
Mechanical & Environmental
Power Requirement
DC Jack 9~35V
Size
146mm x 101mm (Lx W)
Temperature
Operating within 0°C~60°C (32°F~140°F) (Note3)
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: AddADP-3355 supports VGAorAddADP-3460 supports 2nd LVDS.
Note3: W-11865MRE, W-11555MRE, W-11155MRE can operate within -40°C~85°C
Note4: Please don’t remove cooler fan, it will destroy thermal paste on CPU.

LE-37P User’s Manual
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1.3 <Block Diagram>
DP
PTN3460
LVDS
I219-LM
I225-LM
6 x USB3.2 Gen2
1 x USB3.2 Gen2 (TypeE)
2 x USB2.0
DDR4 SODIMM 3200
2 x SATA
1 x PCIe / mSATA
1 x M.2 2230
1 x M.2 KEY M 2280
1 xALC888S
1 x SYSFAN
1 x CPUFAN
1 x GPIO
2 x RS232/422/485
2 x RS232
ESPI
Tiger Lake H
Processor
Super I/O
NCT6126D
HDMI
1 x M.2 KEY M 2280
1 x PCIe X16 Slot
DMI x8
QM580E
Or
RM590E
2 x USB2.0

LE-37P User’s Manual
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Chapter 2 <Hardware setup>
2.1 <Connector Location and Reference>
M.2 KEY E
MINI_CARD
M.2_NVME1
M.2_NVME2
CN_USB
CN_AUDIO
JFRNT
CN_DIO
CN_COM3/4
CN_COM1/2
SYSFAN
CN_INV CN_LVDS SATA3-1 SATA3-2
TYPE_E DC_OUT
DDR4_A
SIM
CPUFAN
CN_SMBUS
DC_2PJ
CN_BAT

LE-37P User’s Manual
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2.1.1 <Internal connectors list>
Connector
Function
DDR4_A
260-pin DDR4 SO-DIMM slot
SATA3-1/2
7-pin SATA3 connector
CN_AUDIO
5 x 2-pin audio pin header
CN_LVDS
20 x 2-pin LVDS connector
CN_INV
5-pin LCD inverter connector
CN_SMBUS
5-pin SMBus connector
CN_COM 1/2
20-pin RS232/RS422/RS485 connector
CN_COM 3/4
20-pin RS232 connector
CN_USB
5 x 2-pin USB2.0 pin header
CN_DIO
6 x 2-pin digital I/O connector
CPUFAN
4-pin CPU fan connector
SYSFAN
4-pin system fan connector
JFRNT
10-pin front panel switch/indicator connector
TYPE_E
20-pin Type E USB3.2 Gen2 connector
MINI_CARD
52-pin MiniPCIe card slot
M2_E
75-pin M.2 Key E slot
M2_NVME1
75-pin M.2 Key M slot support PCIe Gen4 and SATA
M2_NVME2
75-pin xM.2 2280 Key M support PCIe Gen4
DC_2PJ
DC Jack
2.1.2 <External connectors list>
Connector
Function
HDMI-DP
DisplayPort and HDMI dual layer connector
USB3-1/3-2/3-3
2 x USB3.2 Gen2 connector
RJ45-1
RJ45 connector (I219-LM)
RJ45-2
RJ45 connector (I225-LM)
HDMI USB3.2 Gen2
DP i225-LM i219-LM

LE-37P User’s Manual
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2.2 <Memory Setup>
LE-37P 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-37P User’s Manual
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2.3 <Jumper Location and Reference>
2.3.1 <Jumper list>
Jumper
Function
JAT
Power mode select
JRTC
CMOS Normal/Clear Setting
JVLCD
Panel Voltage Setting
JMSATA
MiniCard mSATA Setting
JP1
COM1 Voltage Setting (For Pin 9)
JP2
COM2 Voltage Setting (For Pin 9)
JAT
DC_I
N
CPU
FAN
CN_I
NV
JRTC JVLCD
JMSATA
JP2
JP1

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

LE-37P User’s Manual
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2.4 <I/O interface>
2.4.1 <Serial ATA interface>
SATA 1/2 : SATA3 7-pin connector
Pin
Signal
1
GND
2
TX+
3
TX-
4
GND
5
RX-
6
RX+
7
GND
7 1
SATA3-1 SATA3-2

LE-37P User’s Manual
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2.4.2 <Ethernet interface>
The board provides I219-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.)
2.4.3 <Display interface>
Based on the 11th Gen CPU with built-in Intel® UHD 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 UHD Graphics support
Quad display function with clone mode and extended mode.
I225-LM I219-LM
HDMI
DP

LE-37P 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
Pin4 only need to be connected to GND
40
2
39
1
1 5
CN_INV CN_LVDS JVLCD
2 6
5 1

LE-37P User’s Manual
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CN_INV: LVDS 5-pin Backlight power connector
Pin
Signal
1
12V
2
Backlight Control
3
5V
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
2.4.4 <Serial Port interface>
`
JP1
5 1
6 2
JP2
5 1
6 2
2 1
CN_COM1/2
19
2 1
CN_COM3/4
19

LE-37P User’s Manual
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COM1/2: 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
COM1 & COM2
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-37P User’s Manual
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COM3/4: 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

LE-37P User’s Manual
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2.4.5 <USB interface>
CN_USB: USB2.0 10-pin header (Pitch 2.54 mm)
Pin
Signal
Pin
Signal
1
5VSB
2
5VSB
3
DATA0-
4
DATA1-
5
DATA0+
6
DATA1+
7
GND
8
GND
9
GND
10
Key
TYPE_E CN_USB
2
9
1
USB3.2 Gen2
11 20
10 1

LE-37P User’s Manual
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TYPE_E: USB3.2 Gen2 20-pin header (Cable optional)
Pin
Signal
Pin
Signal
1
5V
20
N/A
2
USB3.2_Gen2_TX1+
19
USB2.0_DATA+
3
USB3.2_Gen2_TX1-
18
USB2.0_DATA-
4
GND
17
GND
5
USB3.2_Gen2_RX1+
16
USB3.2_Gen2_RX2-
6
USB3.2_Gen2_RX1-
15
USB3.2_Gen2_RX2+
7
5V
14
GND
8
N/A
13
USB3.2_Gen2_TX2-
9
N/A
12
USB3.2_Gen2_TX2+
10
N/A
11
5V
2.4.6 <Audio interface>
CN_AUDIO: Front panel audio 10-pin header (Pitch 2.54*1.27mm)
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
CN_AUDIO
10 9
2 1