DFI WL171/WL173 User manual

WL171/WL173
Mini-ITX Industrial Motherboard
User’s Manual
A-569-M-2018
Preliminary
Version
Preliminary
Version

2User's Manual | WL171/WL173
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.
© 2020. 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:
1. The changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
2. Shielded interface cables must be used in order to comply with the emission limits.

3User's Manual | WL171/WL173
Table of Contents
Chapter 1 - Introduction................................................................................................................6
Specifications ......................................................................................................................... 6
Features .................................................................................................................................. 7
DDR4................................................................................................................................. 7
Chapter 2 - Hardware Installation................................................................................................8
Board Layout........................................................................................................................... 8
LEDs ........................................................................................................................................ 8
System Memory ..................................................................................................................... 9
Installing the SO-DIMM Module ..................................................................................... 9
Heatsink and Fan .................................................................................................................10
Jumper Settings ...................................................................................................................12
Clear CMOS (JP1) .........................................................................................................12
LCD/Inverter Power Select (JP5) .................................................................................12
Panel Power Select (JP4) .............................................................................................13
Backlight Brightness Select (JP3)................................................................................13
COM1 Power Select ......................................................................................................14
Auto Power-on Select (JP6) .........................................................................................14
Rear I/O Ports.......................................................................................................................15
DC In ...............................................................................................................................15
USB Ports .......................................................................................................................16
Graphics Display............................................................................................................16
RJ45 LAN .......................................................................................................................17
Audio...............................................................................................................................17
Internal I/O Connectors .......................................................................................................18
COM (Serial) Port ..........................................................................................................18
USB Ports .......................................................................................................................18
Front Audio.....................................................................................................................19
SATA (Serial ATA) ..........................................................................................................19
Chassis Intrusion...........................................................................................................20
Cooling Fan Connectors................................................................................................20
Front Panel.....................................................................................................................21
SMBus ............................................................................................................................21
Battery ............................................................................................................................22
Digital I/O .......................................................................................................................22
LVDS Panel.....................................................................................................................23
V-by-One .........................................................................................................................24
Expansion Slots .............................................................................................................25
Installing the M.2 Module .............................................................................................25
LPC .................................................................................................................................26

4User's Manual | WL171/WL173
About this Manual
This manual can be downloaded from the website, or acquired as an electronic file included in
the optional CD/DVD. 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 con-
tact our sales representatives for the latest editions.
Warranty
1. Warranty does not cover damages or failures that arised from misuse of the product,
inability to use the product, unauthorized replacement or alteration of components and
product specifications.
2. The warranty is void if the product has been subjected to physical abuse, improper in-
stallation, modification, accidents or unauthorized repair of the product.
3. 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 ser-
vice agency for all such work.
4. We will not be liable for any indirect, special, incidental or consequencial 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.
1. To prevent electrostatic build-up, leave the system board in its anti-static bag until you
are ready to install it.
2. Wear an antistatic wrist strap.
3. Do all preparation work on a static-free surface.
4. Hold the device only by its edges. Be careful not to touch any of the components, con-
tacts or connections.
5. 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 | WL171/WL173
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.
• One WL171/WL173 board
• One COM port cable (Length: 250mm, 2*5 pin headers to DB9)
• One Serial ATA data with power cable (Length: 300mm)
• One Heatsink (Height: 25mm)
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
• USB 2.0 cable
• COM cable
• SATA cable
• Heatsink (Height: 32mm)
• I/O Shield
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 hard disk drive, CD-ROM, etc.
• Power adaptor
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 | WL171/WL173
Chapter 1 - Introduction
XSpecifications
The specifications listed here may be based on editions that do not
resemble your actual products. Please visit the download page at go.dfi.
com/WL17x, or via the QR code to the right for the latest datasheet.
SYSTEM Processor 8th Generation Intel®Core™ Processors, BGA 1528
i7-8665UE, Quad Core, 8M Cache, 1.7GHz (4.4GHz), 15W
i5-8365UE, Quad Core, 6M Cache, 1.6GHz (4.1GHz), 15W
i3-8145UE, Dual Core, 4M Cache, 2.2GHz (3.9GHz), 15W
Celeron®4305UE, Dual Core, 2M Cache, 2.0GHz (2.0GHz), 15W
Memory 2 x 260-pin SODIMM up to 64GB
DDR4 2400MHz/DDR4 2133MHz (for Celeron 4305UE)
BIOS AMI SPI 128Mbit
GRAPHICS Controller Intel®UHD Graphics 620/ Intel®UHD Graphics 610 (for Celeron
4305UE)
Feature OpenGL 4.4, DirectX 12, OpenCL 2.1
HW Decode: AVC/H.264, MPEG2, VC1/WMV9, JPEG/MJPEG,
HEVC/H265, VP8, VP9
HW Encode: AVC/H.264, MPEG2, JPEG, HEVC/H265, VP8, VP9
Display 1 x LVDS/V-by-One (Opt.), resolution up to 1920x1200 @ 60Hz
2 x HDMI/DP, resolution up to 4096x2160 @ 30Hz
Triple
Displays
HDMI/DP++ + HDMI/DP++ + LVDS/V-by-One (Opt.)
EXPANSION Interface 1 x PCIe x4 (Gen 3)
1 x M.2 2242/2260/2280 M key (SATA3.0/PCIe x2)
1 x M.2 2230 E key (PCIe x2/USB 2.0)
AUDIO Codec Realtek ALC888S-VD2-GR
ETHERNET Controller 1 x Intel®I210AT PCIe (10/100/1000Mbps)
1 x Intel®I219LM PCIe with iAMT11.6 and vPro
(10/100/1000Mbps) (only Core i7/i5 supports iAMT)
REAR I/O Ethernet 2 x GbE (RJ-45)
USB 4 x USB 3.1 Gen2
Display 2 x HDMI/DP
Audio 1 x Line-out
1 x Mic-in
INTERNAL I/O Serial 1 x RS-232/422/485 (RS-232 w/ power) (2.0mm pitch)
1 x RS-232 (2.0mm pitch)
USB 4 x USB 2.0 (2.0mm pitch)
Display 1 x LVDS Box Header
1 x V-by-One Connector
Audio 1 x S/PDIF
1 x Front Audio Header
SATA 2 x SATA 3.0 (up to 6Gb/s)
2 x SATA Power
RAID 0/1
DIO 1 x 8-bit DIO
LPC 1 x LPC
SMBus 1 x SMBus
WATCHDOG
TIMER
Output &
Interval
System Reset, Programmable via Software from 1 to 255 Sec-
onds
SECURITY TPM TPM 2.0 (Opt.)
POWER Type Single 12V +/-10% DC (WL171)
Wide Range 9~36V (WL173)
Connector DC-in Jack
Right Angle Connector (4-pin) (available upon request)
Straight Type Connector (4-pin) (available upon request)
RTC Battery CR2032 Coin Cell
OS SUPPORT Microsoft/
Linux
Windows 10 IoT Enterprise 64-bit
Debian 8 (with VESA graphic driver)
Fedpra
CentOS 7 (with VESA graphic driver)
Yocto 2.6
Linux
MECHANICAL Humidity Operating: 5 to 90% RH
Dimensions Mini-ITX Form Factor: 170mm (6.7") x 170mm (6.7")
Height PCB: 1.6mm; Top Side: 16.5mm, Bottom Side: 3.5mm

7
Chapter 1
INTRODUCTION
User's Manual | WL171/WL173
XFeatures
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.
Graphics
The integrated Intel®UHD graphics engine delivers an excellent blend of graphics performance
and features to meet business needs. It provides excellent video and 3D graphics with out-
standing graphics responsiveness. These enhancements deliver the performance and compat-
ibility needed for today’s and tomorrow’s business applications.
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
The Intel®I219LM and Intel®I210AT Gigabit Ethernet Controllers support data transmission at
1Gbps.
Audio
The Realtek ALC888 audio codec provides 7.1 channel High Definition audio output.
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.
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 (1.2 GB/s) and is faster than USB 3.1 Gen 1 (5 Gbit/s, or
625 MB/s), 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 improvement in device transfer speeds between your computer and a
wide range of simultaneously accessible 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.

8
Chapter 2
HARDWARE INSTALLATION
User's Manual | WL171/WL173
Chapter 2 - Hardware Installation
1
2
13
14
DDR4_2 SODIMM
DDR4_1 SODIMM
40
39 1
2
8
1
1
1
1
1
2
5
6
1
1
1
1
19
2
19
2
2
11
8
1
1
1
1
6
5
2
1
1
2
9
10
1
2
9
10
1
2
9
10
11
1
5
2
1
1
Line Out
Mic In
Important:
Electrostatic discharge (ESD) can damage your board, proces-
sor, 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 protection
by wearing an antistatic wrist strap and attaching it to a metal
part of the system chassis. If a wrist strap is unavailable, es-
tablish and maintain contact with the system chassis through-
out any procedures requiring ESD protection.
Note:
Some of the components are model-specific. Please refer to the specifications for detail.
Important:
When the Standby Power LED lights up, it indicates that there
is power on the system board. Power-off the PC then unplug
the power cord prior to installing any devices. Failure to do
so will cause severe damage to the motherboard and compo-
nents.
XLEDs
Base-T LED (left),
Wireles LED (right)
LVDS/V-by-One
Lock Detect LED
SATA LED
XBoard Layout
1
2
13
14
DDR4_2 SODIMM
DDR4_1 SODIMM
40
39 1
2
8
1
1
1
1
1
2
5
6
1
1
1
1
19
2
19
2
2
11
8
1
1
1
1
6
5
2
1
1
2
9
10
1
2
9
10
1
2
9
10
11
1
5
2
1
1
Line Out
Mic In
LED3
SATA0
SATA1
11
LPC
LVDS Inverter Power
USB 7/8 (USB 2.0)
PCIE1 (PCIe x4)
Front Audio
USB 1/2
(USB 3.0/2.0)
USB 3/4
(USB 3.0/2.0)
LAN2
LAN1
HDMI/DP++
HDMI/DP++
DC In
Note
Buzzer
JP1
JP5
JP3
LVDS
V-by-One HS (Optional)
LED4
JP4
Battery
Front Panel
DIO
JP6
SATA Power
M.2 E Key
Chassis Intrusion
COM1
COM2
SPI Flash BIOS
M.2 M Key
LED2
USB 5/6 (USB 2.0)
SMBUS
SYS FAN
CPU FAN DIO Power
LED1
JP2
Intel
BGA 1528
16
17 18
20
21
24
25
26
34
35
1
3
9
2
6
7
8
10
12
13
14 15 19
22
22
23
27
28
29
31 30
3233
4
1
2
3
4
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8
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15
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28
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30
32
31
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34
35

9
Chapter 2
HARDWARE INSTALLATION
User's Manual | WL171/WL173
1
2
13
14
DDR4_2 SODIMM
DDR4_1 SODIMM
40
39 1
2
8
1
1
1
1
1
2
5
6
1
1
1
1
19
2
19
2
2
11
8
1
1
1
1
6
5
2
1
1
2
9
10
1
2
9
10
1
2
9
10
11
1
5
2
1
1
Line Out
Mic In
• 2 x 260-pin SODIMM up to 64GB
• DDR4 2400MHz (Celeron 4305UE 2133MHz only)
XSystem Memory
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.
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.
Single Channel DIMMs are on the same channel. DIMMs in a channel can be identi-
cal or completely different. However, we highly recommend using
identical DIMMs. Not all slots need to be populated.
Dual Channel DIMMs of the same memory configuration are on different channels.
DDR4_1
DDR4_2
Installing the SO-DIMM Module
Before installing the memory module, please make sure that the following safety cautions are
well-attended.
1. Make sure the PC and all other peripheral devices connected to it has been powered
down.
2. Disconnect all power cords and cables.
3. Locate the SO-DIMM socket on the system board
4. Make sure the notch on memory card is aligned to the key on the socket.
XSystem Memory
Notch
Retention Notch
Key
Socket Top View
DDR4 SO-DIMM
Retention Clip
45°
Step 1
Step 2
Step 3

10
Chapter 2
HARDWARE INSTALLATION
User's Manual | WL171/WL173
XSystem Memory
XInstalling the SO-DIMM Module
Please follow the steps below to install the memory card into the socket.
Step 1:
Insert the memory card into the
slot while making sure 1) the
notch and the key are aligned,
and 2) the non-connector end
rises approximately 45 degrees
horizontally. Press the card firmly
into the socket while applying and
maintaining even pressure on both
ends.
Step 2:
Press the end of the card far from
the socket down while making
sure the retention notch and the
clip align as indicated by the dot-
ted line in the illustration. If the
retention notch and the clip do not
align, please remove the card and
re-insert it. Press the card all the
way down.
Step 3:
The clips snap automatically and
abruptly to the retention notches
of the card sounding a distinctive
click, and lock the card in place.
Inspect that the clip sits in the
notch. If not, please pull the clips
outward, release and remove the
card, and mount it again.
Notch
Retention Notch
Key
Socket Top View
DDR3 SO-DIMM
Retention Clip
45°
Step 1
Step 2
Step 3
XHeatsink and Fan
1
2
13
14
DDR4_2 SODIMM
DDR4_1 SODIMM
40
39 1
2
8
1
1
1
1
1
2
5
6
1
1
1
1
19
2
19
2
2
11
8
1
1
1
1
6
5
2
1
1
2
9
10
1
2
9
10
1
2
9
10
11
1
5
2
1
1
Line Out
Mic In
The CPU must be kept cool by using a CPU fan with heatsink. Without sufficient air circulation
across the CPU and heatsink, the CPU will overheat damaging both the CPU and system board.
1. Before you install the fan / heatsink, you must apply a thermal paste onto the top of
the CPU. The thermal paste is usually supplied when you purchase the fan / heatsink
assembly. Do not spread the paste all over the surface. When you later place the heat-
sink on top of the CPU, the compound will disperse evenly.
Some heatsinks come with a patch of pre-applied thermal paste. Do not apply thermal
paste if the fan / heatsink already has a patch of thermal paste on its underside. Peel
the strip that covers the paste before you place the fan / heatsink on top of the CPU.
2. Place the heatsink on top of the CPU. The 4 spring screws around the heatsink, which
are used to secure the heatsink onto the system board, must match the 4 mounting
holes around the socket.
3. Orient the heatsink so that the CPU fan’s cable is nearest the CPU fan connector.
Important:
A boxed Intel®processor already includes the CPU fan and heatsink assembly. If
your CPU was purchased separately, make sure to only use Intel®-certified fan and
heatsink.
Mounting holes
CPU fan connector