Commell LV-6714 User manual

LV-6714
Mini-ITX Desktop Motherboard
User’s Manual
Edition 1.2
2022/11/22

LV-6714 User’s Manual
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Copyright
Copyright 2022, 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

LV-6714 User’s Manual
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Packing List:
Please check the package content before you starting using the board.
1 x LV-6714 Mini-ITX Motherboard 1 x I/O Shield
(OPLATE-CUHDLAT) / (1270077)
1 x Audio cable 1 x USB2.0 Cable
(OALPJ-HD) / (1040120) (OALUSBA-1) / (1040172)
1 x Dual COM PORT Cable
(OALES-BKU2) / (1040087)
2 x SATA Cable 1 x Driver CD
(OALSATA3-L) / (1040529) (Including User’s Manual)
OPTIONAL:

LV-6714 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 <CPU and Memory Setup>.................................................9
2.2.1 <CPU installation> ....................................................9
2.2.2 <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> ..................................................................11
2.4.1 <Serial ATAinterface>.............................................11
2.4.2 <Ethernet interface>................................................12
2.4.3 <Display interface> .................................................12
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 and Other interface>...................................21
2.5 <Power supply> ................................................................23
2.5.1 <Power input>.........................................................23
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

LV-6714 User’s Manual
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Chapter 1 <Introduction>
1.1 <Product Overview>
LV-6714 is a Mini-ITX Motherboard which supports Alder Lake/12th Gen Desktop
Processors, integrated DDR5 memory, Realtek High DefinitionAudio, Intel Gigabit LAN,
USB3.2 Gen2, SATA3 with AHCI function for a system.
New feature for Alder Lake
Alder Lake/12th Gen Processors are based on the 7nm SuperFin process, and offer
long-life availability. i9-12900 with 8 P-cores and 8 E-cores. P-cores can help you handle
heavy tasks, and E-cores run background tasks efficiently to save power. Support DDR5
Memory up to 4800 and PCIe gen 5 x16 Slot.
All in One multimedia solution
The board provides one M.2 3042 slot (support SATA), one M.2 2230 slot, one M.2 2280
slot (PCIe Gen4), and one PCIe x16 slot (PCIe Gen5 X16).
Alder Lake support Windows10 version 21H2 64bit and Linux 5.18
Intel recommends using Windows 10 version 21H2 64bit. It may lose some drivers if you
use other Windows version.

LV-6714 User’s Manual
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1.2 <Product Specification>
System
Processor
Support 12th Gen Intel®Alder Lake S Processor
FCLGA1700 package (Support up to 65W TDP CPU)
Chipset
Intel® Q670E
Memory
2 x DDR5 DIMM 4800 MHz up to 64GB,
Support Non-ECC, unbuffered memory only
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 M.2 2230 Key E for Wi-Fi and Bluetooth
1 x M.2 2280 Key M support PCIe Gen4 or SATA
1 x M.2 3042 Key B for 4G / 5G module or SATAwith SIM slot
1 x PCIe X16 slot support PCIe Gen5
Graphics
Chipset
Intel® UHD Graphics 770 / 730 / 710
Display Interface
1 x LVDS (Note1), 2 x HDMI, 2 x DisplayPort(Note2)
LAN
Chip
1 x Intel® I219-LM Gigabit LAN PHY (Support iAMT16.0)
1 x Intel® I226-LM Gigabit LAN
I/O
Serial ATA
3 x SATA3
Audio
RealtekALC888S HDAudio
Internal I/O
3 x SATA3, 4 x RS232, 2 x USB2.0, 1 x LVDS, 1 x SIM slot
1 x LCD inverter connector , 1 x GPIO , 1 x Audio, 1 x SMBus
Rear I/O
2 x HDMI, 2 x DisplayPort, 1 xAudio, 2 x LAN, 6 x USB3.2 Gen2
2 x RS232/RS422/RS485
Mechanical & Environmental
Power Requirement
Standard 24-pinATX power supply and 4-pin 12V
Size & Thickness
170mm x 170mm (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 VGA or Add ADP-3460 supports 2nd LVDS, please contact with our
sales for OEM version.

LV-6714 User’s Manual
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1.3 <Block Diagram>
PTN3460
LVDS
HDMI
HDMI
DP
DP
DDR5
DDR5
PCIe Gen5
M2-M
MUX
I219
I226
3x SATA
2x USB2.0
6x USB3.2 Gen2
MUX
M2-B
M2-E
ALC888S
4 x RS232
2 x RS232/422/485
CPUFAN
SYSFAN
GPIO
DMI
ESPI
SATA
PCIe
USB
PCIe
SATA
ADL-S
CPU
Q670E
NCT6126D

LV-6714 User’s Manual
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Chapter 2 <Hardware setup>
2.1 <Connector Location and Reference>
ATX
COM2
SATA3-3 SATA3-1
COM1 USB3 USB_RJ45_1
DHDMI
DDP
M2-B
MINI_
CAR
D1
SATA3-2 SYSFAN
SIMX
MIN
I_C
ARD
1
M2-E
MINI_
CAR
D1
M2-M
MINI_
CAR
D1
CN_LVDS
USB_RJ45_2 AUDIO
DDR5A
DDR5B
JFRNT
PCI_E16X
CN_DIO
CN_COM5/6
CN_COM3/4
CN_USB
JLANLED
CN_AUDIO
DDR4_A
DDR4_B
ATX
CN_12V
CPUFAN
CN_SMBUS
CN_ BAT
CN_INV

LV-6714 User’s Manual
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2.1.1 <Internal connectors list>
Connector
Function
DDR5_A/B
288-pin DDR5 DIMM slot
SATA3-1/2/3
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 3/4/5/6
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
14-pin front panel switch/indicator connector
JLANLED
8-pin RJ45 LED Connector
PCI_E16X
164-pin x16 PCIE slot (Supoort PCIe Gen5)
M2_E
75-pin M.2 Key E slot
M2_M
75-pin M.2 Key M slot (Supoort PCIe Gen4 or SATA)
M2_B
75-pin M.2 Key B slot (Supoort 4G / 5G module or SATA)
ATX
24-pin power supply connector
CN_12V
4-pin power input Terminal Block
SIMM
6-pin socket
2.1.2 <External connectors list>
Connector
Function
DDP
Dual DisplayPort connector
DHDMI
Dual HDMI connector
USB3
Dual USB3.2 Gen2 connector
USB_RJ45_1/2
RJ45 and Dual USB3.2 Gen2 connector
AUDIO
Audio connector
COM1/2
DB9 Serial port connector

LV-6714 User’s Manual
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2.2 <CPU and Memory Setup>
2.2.1 <CPU installation>
LV-6714 has a LGA1700 CPU socket onboard; please check following steps to install the
processor properly.
Attention If LV-6714 needs RMA please Keep CPU socket cover on the CPU Socket.
Warning If CPU Socket internal Pin damage We could not provide warranty.
LGA 1700 Install manual from Intel
LGA 1700 Install video from Intel
2.2.2 <Memory Setup>
LV-6714 has two 288-pin DDR5 DIMM support up to 64GB of memory capacity and 1.1
Voltage. The memory frequency supports 4800 MHz.
Please check the pin number to match the socket side well
before installing memory module.

LV-6714 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
JSATA
M2-B PCIe /SATA Setting
JP1
COM1 Voltage Setting (For Pin 9)
JP2
COM2 Voltage Setting (For Pin 9)
JVLCD
JP1
JP2
JRTC
JSATA
JAT

LV-6714 User’s Manual
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2.3.2 <Clear CMOS and Power on type selection>
The board’s data of CMOS can be setting in BIOS. If the board refuses to boot due to
inappropriate CMOS settings, here is how to proceed to clear (reset) the CMOS to its
default values.
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)
2.4 <I/O interface>
2.4.1 <Serial ATA interface>
SATA 1/2/3: SATA3 7-pin connector
Pin
Signal
1
GND
2
TX+
3
TX-
4
GND
5
RX-
6
RX+
7
GND
7
1
JRTC
3
1
JAT
3
1
SATA3-2
SATA3-3 SATA3-1

LV-6714 User’s Manual
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2.4.2 <Ethernet interface>
The board provide I219-LM PHY Gigabit Ethernet and I226 2.5 Gigabit Ethernet on
rear I/O.Intel I226 supports operation at 100/1000/2500 Mb/s data rates, with
IEEE802.3 compliance and Wake-On-LAN supported.
2.4.3 <Display interface>
Based on the 12th Gen CPU with built-in UHD Graphics 730, DisplayPort up to
4096x2304@60Hz , HDMI up to 4096x2304@24Hz on rear IO. About the internal
Display, LVDS (PTN3460) up to 1920x1200@60Hz support 18/24-bit color depth
and single/dual channel. About select LCD Panel Type in BIOS, please refer
Appendix B.
The built-in HD Graphics support triple display function with clone mode and
extended mode.
I226 I219
HDMI DP

LV-6714 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
5 1
JVLCD
6 2
CN_LVDS
5 1
CN_INV
39 1
40 2

LV-6714 User’s Manual
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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

LV-6714 User’s Manual
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2.4.4 <Serial Port interface>
COM1: RS232/422/485 DB9 connector
Pin
Signal
Pin
Signal
1
DCD/ 422TX-/ 485-
2
RXD/ 422TX+/ 485+
3
TXD
4
DTR
5
GND
6
DSR/ 422RX+
7
RTS
8
CTS/ 422RX-
9
Set by JP1
COM2
COM1
2
5
6
1
JP2
2
5
6
1
JP1
CN_COM5/6
CN_COM3/4
19
2 1
19
2 1

LV-6714 User’s Manual
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COM2: RS232/422/485 DB9 connector
Pin
Signal
Pin
Signal
1
DCD/ 422TX-/ 485-
2
RXD/ 422TX+/ 485+
3
TXD
4
DTR
5
GND
6
DSR/ 422RX+
7
RTS
8
CTS/ 422RX-
9
Set by JP2
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)
COM3/4,COM5/6: COM 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
Effective patterns of connection:
1-2 / 3-4 / 5-6
Other may cause damage

LV-6714 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
USB3.2 Gen2
CN_USB
9 1
USB3.2 Gen2
2

LV-6714 User’s Manual
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2.4.6 <Audio interface>
CN_AUDIO: Front panel audio 10-pin header (Pitch 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
CN_AUDIO
9 1
Line in
Line out
Mic in
Rear Audio Jack
10 2

LV-6714 User’s Manual
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2.4.7 <Expansion slot>
M2-B can support SATA by JSATA or 4G / 5G module, and connect SIM slot
M2-E can support WI-FI and Bluetooth Module
M2-M with 4 x PCIe Gen4 supports NVMe SSD or SATA
PCI_E16X can support PCIe Gen 5 x16
JSATA: Setting M2-B supports PCIe/SATA
Jumper settings
Function
1-2
Support PCIe
2-3
Support M.2 KEY B 2242 SATA (Default)
M2-B
MINI_
CAR
D1
SIMX
MIN
I_C
ARD
1
M2-E
MINI_
CAR
D1
M2-M
MINI_
CAR
D1
PCI_E16X
JSATA
3
1