DFI EHL171 User manual

EHL171/173
Mini-ITX Industrial Motherboard
User’s Manual
ver.2_-_7-2321_18-25
COMING SOON
Preliminary

2User's Manual | EHL171/173
Copyright
This publication contains information that is protected by copyright. No part of it may be repro-
duced in any form or by any means or used to make any transformation/adaptation without the
prior written permission from the copyright holders.
This publication is provided for informational purposes only. The manufacturer makes no
representations or warranties with respect to the contents or use of this manual and specifi-
cally disclaims any express or implied warranties of merchantability or fitness for any particular
purpose. The user will assume the entire risk of the use or the results of the use of this docu-
ment. Further, the manufacturer reserves the right to revise this publication and make changes
to its contents at any time, without obligation to notify any person or entity of such revisions or
changes.
Changes after the publication’s first release will be based on the product’s revision. The website
will always provide the most updated information.
© 2021. All Rights Reserved.
Trademarks
Product names or trademarks appearing in this manual are for identification purpose only and
are the properties of the respective owners.
FCC and DOC Statement on Class B
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reason-
able protection against harmful interference when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encour-
aged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the re-
ceiver is connected.
• Consult the dealer or an experienced radio TV technician for help.
Notice:
• The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
• Shielded interface cables must be used in order to comply with the emission limits.

3User's Manual | EHL171/173
Table of Contents
Chapter 1 - Introduction................................................................................................................6
Specifications ......................................................................................................................... 6
Features .................................................................................................................................. 7
Block Diagram ........................................................................................................................ 8
Chapter 2 - Hardware Installation................................................................................................9
Board Layout........................................................................................................................... 9
System Memory ...................................................................................................................10
Installing the DIMM Module .........................................................................................10
Removing the DIMM Module........................................................................................11
Jumper Settings ...................................................................................................................12
CLEAR CMOS Data ........................................................................................................12
Panel Backlight Selection .............................................................................................13
Panel Inverter Power Selection ....................................................................................13
COM1 Power Selection .................................................................................................14
COM2 Power Selection .................................................................................................14
Rear I/O Ports.......................................................................................................................15
USB Ports .......................................................................................................................15
Graphics Interfaces .......................................................................................................16
RJ45 LAN Ports .............................................................................................................17
Audio .............................................................................................................................17
Internal I/O Connectors .......................................................................................................18
SATA (Serial ATA) ..........................................................................................................18
Digital I/O Connector.....................................................................................................18
COM (Serial) ports.........................................................................................................19
Cooling Fan Connectors................................................................................................20
InnoAGE HDR1...............................................................................................................20
Front Panel.....................................................................................................................21
S/PDIF Connector..........................................................................................................21
Expansion Slots .............................................................................................................22
Installing the M.2 Module .............................................................................................22
Battery Header...............................................................................................................23
DIO Power ......................................................................................................................24

4User's Manual | EHL171/173
About this Manual
This manual can be downloaded from the website.
The manual is subject to change and update without notice, and may be based on editions that
do not resemble your actual products. Please visit our website or contact our sales representa-
tives for the latest editions.
Warranty
• Warranty does not cover damages or failures that occur from misuse of the product,
inability to use the product, unauthorized replacement or alteration of components and
product specifications.
• The warranty is void if the product has been subjected to physical abuse, improper
installation, modification, accidents or unauthorized repair of the product.
• Unless otherwise instructed in this user’s manual, the user may not, under any circum-
stances, attempt to perform service, adjustments or repairs on the product, whether
in or out of warranty. It must be returned to the purchase point, factory or authorized
service agency for all such work.
• We will not be liable for any indirect, special, incidental or consequential damages to
the product that has been modified or altered.
Static Electricity Precautions
It is quite easy to inadvertently damage your PC, system board, components or devices even
before installing them in your system unit. Static electrical discharge can damage computer
components without causing any signs of physical damage. You must take extra care in han-
dling them to ensure against electrostatic build-up.
• To prevent electrostatic build-up, leave the system board in its anti-static bag until you
are ready to install it.
• Wear an antistatic wrist strap.
• Do all preparation work on a static-free surface.
• Hold the device only by its edges. Be careful not to touch any of the components, con-
tacts or connections.
• Avoid touching the pins or contacts on all modules and connectors. Hold modules or
connectors by their ends.
Safety Measures
• To avoid damage to the system, use the correct AC input voltage range.
• To reduce the risk of electric shock, unplug the power cord before removing the sys-
tem chassis cover for installation or servicing. After installation or servicing, cover the
system chassis before plugging the power cord.
Important:
Electrostatic discharge (ESD) can damage your processor, disk drive and other
components. Perform the upgrade instruction procedures described at an ESD
workstation only. If such a station is not available, you can provide some ESD pro-
tection by wearing an antistatic wrist strap and attaching it to a metal part of the
system chassis. If a wrist strap is unavailable, establish and maintain contact with
the system chassis throughout any procedures requiring ESD protection.

5User's Manual | EHL171/173
About the Package
The package contains the following items. If any of these items are missing or damaged,
please contact your dealer or sales representative for assistance.
• 1 EHL171/EHL173 motherboard
• 1 COM port cable (Length: 250mm, 1 x COM ports)
• 1 Serial ATA data with power cable (Length: 250mm)
• 1 Heat sink TBD
The board and accessories in the package may not come similar to the information listed
above. This may differ in accordance with the sales region or models in which it was sold. For
more information about the standard package in your region, please contact your dealer or
sales representative.
Optional Items
The board and accessories in the package may not come similar to the information listed
above. This may differ in accordance with the sales region or models in which it was sold. For
more information about the standard package in your region, please contact your dealer or
sales representative.
Before Using the System Board
When installing the system board in a new system, you will need at least the following internal
components.
• Memory module
• Storage device such as a hard disk drive.
• Power supply
External system peripherals may also be required for navigation and display, including at least
a keyboard, a mouse and a video display monitor.

6
Chapter 1
INTRODUCTION
User's Manual | EHL171/173
Chapter 1 - Introduction
X Specifications
SYSTEM Processor Intel Atom®x6000 Series Processors, BGA 1493
Intel®Atom®x6425E Processor, Quad Core, 1.5M Cache,
1.8GHz (3.0GHz), 12W
Intel®Atom®x6413E Processor, Quad Core, 1.5M Cache,
1.5GHz (3.0GHz), 9W
Intel®Atom®x6211E Processor, Dual Core, 1.5M Cache,
1.2GHz (3.0GHz), 6W
Intel®Pentium®J6413 Processor, Quad Core, 1.5M Cache,
1.8GHz (3.0GHz), 10W
Memory Two 260-pin SODIMM up to 32GB
Dual channel DDR4 up to 3200MHz (in-band ECC support
in embedded/industrial SKU)
BIOS AMI SPI 256Mbit (supports UEFI boot only)
GRAPHICS Controller Intel®UHD Graphics
Feature OpenGL 4.5, DirectX 12, Open CL 1.2, Vulkan 1.1
HW Decode: AVC/H.264, MPEG2, VC1/WMV9, JPEG/
MJPEG, HEVC/H.265, VP8, VP9
HW Encode: AVC/H.264, JPEG/MJPEG, HEVC/H.265, VP9
Display 1 x DP++ (Colay VGA, MOQ re-
quired)
1 x HDMI 1.4b (Colay DP++, MOQ
required)
1 x eDP/LVDS (eDP in priority)
HDMI: resolution
up to 3840x2160 @
30Hz
DP++: resolution
up to 4096x2160 @
60Hz
eDP: resolution up to
4096x2160 @ 60Hz
VGA: resolution up to
2560x1600 @ 60Hz
LVDS: resolution up
to 1920x1200 @
60Hz
Triple Displays DP++/VGA + HDMI/DP++ + eDP/LVDS
EXPANSION Interface 1 x PCIe x4 (PCIe x2 signal)
1 x M.2 2242/2280/3052 B Key (PCIe x1/SATA/USB2.0)
1 x M.2 2230 E Key (PCIe x1/USB2.0)
1 x Nano SIM socket (connected to M.2 B key)
AUDIO Audio Codec Realtek ALC262-VC2-GR
ETHERNET Phy -40~85°C: 2 x Intel®GPY215/I225IT
(10/100/1000/2500Mbps) or
-5~65°C: 2 x Intel®GPY211/I225LM
(10/100/1000/2500Mbps)
REAR I/O Ethernet 2 x GbE (RJ-45)
USB 4 x USB 3.1 Gen2
Display 1 x HDMI/DP++ (opt., MOQ required)
1 x DP++ /VGA (opt., MOQ required)
Audio 1 x Line-out
INTERNAL I/O Serial 2 x RS-232/422/485 (RS-232 w/ power) (2.0mm
pitch)
4 x RS-232 (2.0mm pitch)
USB 4 x USB 2.0 (2.0mm pitch) or
2 x USB 2.0 (2.00mm pitch) + 1 x Vertical USB 2.0 (type A)
(opt., MOQ required)
Display 1 x eDP LCD Panel Connector (Colay LVDS LCD, auto-
detection)
1 x LCD/Inverter Power
Audio 1 x S/PDIF
1 x Audio (Line-out/Mic-in)
SATA 2 x SATA 3.0 (up to 6Gb/s) (one SATA port shared with M.2
B key)
DIO 1 x 8-bit DIO
SMBus 1 x SMBus
WATCHDOG
TIMER Output & Inter- val System Reset, Programmable via Software from 1 to 255
Seconds
SECURITY TPM fTPM (default)
dTPM2.0 (opt.)
POWER Type Single 12V +/-10% DC (EHL171)
Wide Range 9~36V (EHL173)
Connector DC-in Jack
Right Angle Connector (4-pin) (opt., MOQ required)
Vertical Type Connector (4-pin) (opt., MOQ required)
Consumption TBD
RTC Battery CR2032 Coin Cell
OS SUPPORT Microsoft Windows 10 IoT Enterprise 64-bit
Linux Linux
ENVIRONMENT Temperature Operating: -5 to 65°C, -40 to 85°C Storage: -40 to 85°C
Humidity Operating: 5 to 90% RH Storage: 5 to 90% RH
MTBF TBD
MECHANICAL Dimensions Mini-ITX Form Factor 170mm (6.7") x
170mm (6.7")
Height PCB: 1.6mm Top Side: TBD
CERTIFICA-
TIONS CE, FCC, RoHS

7
Chapter 1
INTRODUCTION
User's Manual | EHL171/173
X Features
Watchdog Timer
The Watchdog Timer function allows your application to regularly “clear” the system at the set
time interval. If the system hangs or fails to function, it will reset at the set time interval so that
your system will continue to operate.
DDR4
DDR4 delivers increased system bandwidth and improves performance. The advantages of
DDR4 provide an extended battery life and improve the performance at a lower power than
DDR3/DDR2.
Serial ATA
Serial ATA is a storage interface that is compliant with SATA 1.0a specification. With speed of
up to 6Gb/s (SATA 3.0), it improves hard drive performance faster than the standard parallel
ATA whose data transfer rate is 100MB/s.
Gigabit LAN
Two Intel®Gigabit LAN controllers support up to 1Gbps data transmission.
Wake-On-LAN
This feature allows the network to remotely wake up a Soft Power Down (Soft-Off) PC. It is
supported via the onboard LAN port or via a PCI LAN card that uses the PCI PME (Power Man-
agement Event) signal. However, if your system is in the Suspend mode, you can power-on the
system only through an IRQ or DMA interrupt.
Wake-On-USB
This function allows you to use a USB keyboard or USB mouse to wake up a system from the
S3 (STR - Suspend To RAM) state.
PCI Express
PCI Express is a high bandwidth I/O infrastructure that possesses the ability to scale speeds
by forming multiple lanes. The x4 PCI Express lane supports transfer rate of 4 Gigabyte per
second (2 directions). The PCI Express architecture also supports high performance graphics
infrastructure by enhancing the capability of a PCIe x16 Gen 3 at 16GB/s bandwidth (8GB/s in
each direction).
ACPI STR
The system board is designed to meet the ACPI (Advanced Configuration and Power Interface)
specification. ACPI has energy saving features that enables PCs to implement Power Manage-
ment and Plug-and-Play with operating systems that support OS Direct Power Management.
ACPI when enabled in the Power Management Setup will allow you to use the Suspend to RAM
function.
With the Suspend to RAM function enabled, you can power-off the system at once by pressing
the power button or selecting “Standby” when you shut down Windows®without having to go
through the sometimes tiresome process of closing files, applications and operating system.
This is because the system is capable of storing all programs and data files during the entire
operating session into RAM (Random Access Memory) when it powers-off. The operating ses-
sion will resume exactly where you left off the next time you power-on the system.
Power Failure Recovery
When power returns after an AC power failure, you may choose to either power-on the system
manually or let the system power-on automatically.
USB
The system board supports the new USB 3.1 Gen 2. It is capable of running at a maximum
transmission speed of up to 10 Gbit/s (1250 MB/s), and is faster than USB 2.0 (480 Mbit/s,
or 60 MB/s) and USB 1.1 (12Mb/s). USB 3.1 reduces the time required for data transmission,
reduces power consumption, and is backward compatible with USB 2.0. It is a marked improve-
ment in device transfer speeds between your computer and a wide range of simultaneously ac-
cessible external Plug and Play peripherals.
RTC Timer
The Real Time Clock (RTC) installed on the system board allows your system to automatically
power-on on the set date and time.

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Chapter 1
INTRODUCTION
User's Manual | EHL171/173
X Block Diagram
Intel®
Atom®
x6000
Series
Channel A
eDP
PCIe x2
PCIe x1
USB 2.0
USB 2.0
SATA 3.0
SMBus
USB 3.1 Gen2/Gen1
USB 2.0
DDI
HDA
eSPI
GPY215/211
USB 3.1 Gen2 2x
2.5GLAN 1
VGA (opt.)
Audio Jack
(Line-out/Mic in)
S/PDIF
RS-232/422/485 2x
RS-232 4x
FAN Control
H/W Monitor
DDR4 up to 3200MHz SODIMM
PTN3460
PCIe x4
M.2 E key
M.2 B key
SATA 3.0 1x
Digital I/O 8-bit
SMBus
SPI
LVDS
ASM1442K
CH7517
ALC262-VC2-GR
Super IO
with WDT
Channel B
eDP (priority)
SATA 3.0 Switch SATA 3.0 1x
Nano SIM
slot
PCIe x1 Switch
USB 2.0 USB 2.0 4x (one header colay
vertical USB 2.0 type A dongle)
SMBus
TPM 2.0 (opt.)
SPI Bus
HDMI DDI
DP++ (opt.)
DP++
USB 2.0
USB 3.1 Gen2 2x
DDR4 up to 3200MHz SODIMM
I2252.5GLAN 2
USB 3.1 Gen2/Gen1
SGMII (Host GbE)
PCIe

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EHL171/173
Chapter 2 - Hardware Installation
X Board Layout
Important:
Electrostatic discharge (ESD) can damage your board, processor, disk drives,
add-in boards, and other components. Perform installation procedures at an ESD
workstation only. If such a station is not available, you can provide some ESD pro-
tection by wearing an antistatic wrist strap and attaching it to a metal part of the
system chassis. If a wrist strap is unavailable, establish and maintain contact with
the system chassis throughout any procedures requiring ESD protection.
Note:
Some components are optional and only available upon request.
Heater
12
9
12
9
12
9
12
9
12
9
12
9
S/PDIF
1 5
InnoAGE
HDR1
PCIE1
12
9
10
1
2
9
Line Out
12V DC-IN
DDR4_1 SODIMM (Top)
DDR4_2 SODIMM (Bottom)
Buzzer
Front Panel
12
2
111
3
1
SPI Flash BIOS
1
2
9
TPM
1
DIO
1
1 2
39 40
1
40
VGA
DP2
DP1
HDMI
LAN1
(2.5G)
LAN2
(2.5G)
USB 0/1USB 2/3
USB4/5
(USB2.0) USB6/7 (USB2.0)
SATA0
SATA1
COM
1/2/3/4/5/6
(top to bottom)
M.2 B Key
2242
2260
2280
M.2 E Key
2230
DIO Power
LVDS
eDP
SYS FAN 2
CPU/SYS FAN 1
1
1
JP1
1
Battery
1 1
6 6
TSJP2 TSJP1
SATA0/1 Power (up to down)
1
1
1
1
Front
Audio
DPJP2
DPJP1
Heater
12
9
12
9
12
9
12
9
12
9
12
9
S/PDIF
1 5
Front
Audio
PCIE1
12
9
10
1
2
9
DDR4_1 SODIMM (Top)
DDR4_2 SODIMM (Bottom)
Buzzer
Front Panel
12
2
111
JP6
3
1
SPI Flash BIOS
1
2
9
TPM
1
1
1 2
39 40
1
40
VGA
DP2
DP1
HDMI
LAN1
(2.5G)
LAN2
(2.5G)
USB 0/1USB 2/3
USB4/5
(USB2.0) USB6/7 (USB2.0)
SATA 0
SATA 1
M.2 B Key
2242
2260
2280
M.2 E Key
2230
LVDS
eDP
SYS FAN 2
1
1
3
1
JP1
1
Battery
1 1
6 6
TSJP2 TSJP1
SIM Card
slot

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EHL171/173
Heater
12
9
12
9
12
9
12
9
12
9
12
9
S/PDIF
1 5
InnoAGE
HDR1
PCIE1
12
9
10
1
2
9
Line Out
12V DC-IN
DDR4_1 SODIMM (Top)
DDR4_2 SODIMM (Bottom)
Buzzer
Front Panel
12
2
111
3
1
SPI Flash BIOS
1
2
9
TPM
1
DIO
1
1 2
39 40
1
40
VGA
DP2
DP1
HDMI
LAN1
(2.5G)
LAN2
(2.5G)
USB 0/1USB 2/3
USB4/5
(USB2.0) USB6/7 (USB2.0)
SATA0
SATA1
COM
1/2/3/4/5/6
(top to bottom)
M.2 B Key
2242
2260
2280
M.2 E Key
2230
DIO Power
LVDS
eDP
SYS FAN 2
CPU/SYS FAN 1
1
1
JP1
1
Battery
1 1
6 6
TSJP2 TSJP1
SATA0/1 Power (up to down)
1
1
1
1
Front
Audio
DPJP2
DPJP1
X System Memory
• Two 260-pin SODIMM up to 32GB
• Dual channel DDR4 up to 3200MHz (in-band ECC support in embedded/
industrial SKU)
Features
The system board supports the following memory interface.
Single Channel (SC)
Data will be accessed in chunks of 64 bits from the memory channels. DIMMs are on the same
channel. DIMMs in a channel can be identical or completely different. However, we highly rec-
ommend using identical DIMMs. Not all slots need to be populated.
Dual Channel (DC)
Data will be accessed in chunks of 128 bits from the memory channels. Dual channel provides
better system performance because it doubles the data transfer rate.
Before installing the memory module, please make sure that the following safety cautions are
well-attended.
• Make sure the PC and all other peripheral devices connected to it has been powered
down.
• Disconnect all power cords and cables.
• Locate the DIMM socket on the system board
• Make sure the notch on memory card is aligned to the key on the socket.
X System Memory
Installing the DIMM Module
Socket Side View
Socket Top View
Memory Module
Notch
Key
Eject TabEject Tab
DDR4_1
DDR4_2