DFI GHF51 User manual

GHF51
Embedded SBC 1.8”
User’s Manual
A-587-M-2011
Preliminary
Version
Preliminary
Version
Copied from GH960

2User's Manual | GHF51
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 | GHF51
Table of Contents
Copyright........................................................................................................................................ 2
Trademarks....................................................................................................................................2
FCC and DOC Statement on Class B........................................................................................... 2
Notice:............................................................................................................................................2
About this Manual......................................................................................................................... 4
Warranty ........................................................................................................................................ 4
Static Electricity Precautions ....................................................................................................... 4
Safety Measures ........................................................................................................................... 4
About the Package........................................................................................................................5
Optional Items............................................................................................................................... 5
Before Using the System Board................................................................................................... 5
Chapter 1 - Introduction................................................................................................................6
Specifications ......................................................................................................................... 6
Features .................................................................................................................................. 7
Chapter 2 - Hardware Installation................................................................................................8
Board Layout........................................................................................................................... 8
Standby Power LED................................................................................................................ 8
System Memory ..................................................................................................................... 9
Assembly ................................................................................................................................ 9
I/O Connectors .....................................................................................................................10
Rear I/O Ports ................................................................................................................10
SMBus ............................................................................................................................11
Front Panel.....................................................................................................................11
Battery ............................................................................................................................12
12V DC Terminal Block .................................................................................................12
Digital I/O .......................................................................................................................13
Expansion Slots .............................................................................................................13
Installing the Mini PCIe Module ...................................................................................14

4User's Manual | GHF51
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 | GHF51
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 GHF51 board
• Heat Spreader
Optional Items
• Heatsink
• DC cable converter, 2-pin terminal block to coaxial
• Power adapter (60W, 12V, DC jack)
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.
• 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 | GHF51
Chapter 1 - Introduction
XSpecifications
The specifications listed here may be based on editions that
do not resemble your actual products. Please visit the down-
load page at go.dfi.com/GHF51, or via the QR code to the
right for the latest datasheet.
SYSTEM Processor AMD®Ryzen™ Embedded Processors
- R1606G, Dual Core, 1MB Cache, 3 CU, 2.6GHz (3.5GHz), 12W
- R1505G, Dual Core, 1MB Cache, 3 CU, 2.4GHz (3.3GHz), 12W
- R1305G, Dual Core, 3 CU, 1.5GHz (2.8GHz), 8-10W (Coming soon)
- R1102G, Dual Core, 3 CU, 1.2GHz (2.6GHz), 6W (Coming soon)
Memory DDR4 Memory Down up to 4GB/8GB
Single Channel DDR4 2400MHz
BIOS AMI SPI 64Mbit
GRAPHICS Controller AMD Radeon Vega GPU with up to 3 computing units.
Feature H.265 decode/encode support, VP9 decode
Display 2 x Micro HDMI, resolution up to 4096x2160 @ 24Hz
EXPANSION Interface 1 x Full-size Mini PCIe (PCIe Gen2/USB 2.0, optional USB 3.1 Gen2/USB 2.0)
ETHERNET Controller 1 x Intel®I211AT PCIe (10/100/1000Mbps) or
1 x Intel®I210IT PCIe (10/100/1000Mbps) (available upon request)
REAR I/O Ethernet 1 x GbE (RJ-45)
USB 1 x Type C USB 3.1 Gen 2
Display 2 x Micro HDMI (HDMI 1.4)
INTERNAL I/O DIO 1 x 8-bit DIO
SMBus 1 x SMBus
STORAGE eMMC 1 x 16GB/32GB/64GB eMMC
WATCHDOG TIMER Output & Interval Software reset, Programmable via Software from 1 to 65535 Seconds
SECURITY TPM fTPM 2.0
POWER Type Single 12V +/-5% DC
Connector 2-pin Terminal Block
Consumption Typical: R1505G: 12V @ 0.37A (4.44W)
Max: R1505G: 12V @ 1.74A (20.88W)
RTC Battery CR2032 Coin Cell
OS SUPPORT
(UEFI Only)
Microsoft/Linux Windows 10 IoT Enterprise 64-bit
Linux
ENVIRONMENT Temperature Operating: 0 to 60°C / -20 to 70°C
Storage: -40 to 85°C
Humidity Operating: 5 to 90% RH
Storage: 5 to 90% RH
MECHANICAL Dimensions 1.8" SBC Form Factor: 84mm (3.31") x 55mm (2.17")

7
Chapter 1
INTRODUCTION
User's Manual | GHF51
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 Memory Down
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. The system features memory down instead of using memory sockets for optimal
space reduction.
Graphics
The integrated AMD®RadeonTM graphics engine delivers an excellent blend of graphics perfor-
mance and features to meet business needs. It provides excellent video and 3D graphics with
outstanding graphics responsiveness. These enhancements deliver the performance and com-
patibility needed for today’s and tomorrow’s business applications.
Gigabit LAN
The Intel®I211AT Gigabit LAN controller features up to 1Gbps data transmission with support
for Intel®Active Management Technology. It provides remote maintenance and manageability
for networked computing assets in an enterprise environment.
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.
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.
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.

8
Chapter 2
HARDWARE INSTALLATION
User's Manual | GHF51
Chapter 2 - Hardware Installation
XBoard Layout
Important:
When the Standby Power LED lights green, 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 com-
ponents.
XStandby Power LED
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.
Ryzen
R1000
Series
AMD
TM
DDR4
DDR4
eMMC
Intel
I211AT
SMBus
Front Panel
12
6 5
12
6 5
Buzzer
Mini PCIe
SPI Flash
BIOS
DIO
DC
12V
Standby Power LEDUART Debug
HDMI 1 HDMI 2 USB 3.1
Gen 2 LAN
1
1
Battery
1
2
9
10
DDR4
DDR4
Ryzen
R1000
Series
AMD
TM
DDR4
DDR4
eMMC
Intel
I211AT
SMBus
Front Panel
12
6 5
12
6 5
Buzzer
Mini PCIe
SPI Flash
BIOS
DIO
DC
12V
Standby Power LEDUART Debug
HDMI 1 HDMI 2 USB 3.1
Gen 2 LAN
1
1
Battery
1
2
9
10
DDR4
DDR4
Bottom View
Top View
Standby Power LED

9
Chapter 2
HARDWARE INSTALLATION
User's Manual | GHF51
• DDR4 2400MHz Single Channel
• Up to 4G or 8G Memory Down
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. RAMs are on the same
channel.
A heat spreader is included in the standard package. The heat spreader and components re-
quired for mounting are illustrated below.
DDR4
DDR4
XAssembly
Chassis
Interface Metal Side Down
CPU Side Up
Screw * 4
Interface Metal
To Chassis
To Chassis
Chassis
Chassis
Interface Metal Side Down
CPU Side Up
Screw * 4
Interface Metal
To Chassis
To Chassis
Chassis
The heat spreader is designed to be mounted onto the module as illustrated below. Please
make sure the contacting sides of the heat spreader and the module are correct — the CPU
side of the module shall be facing the interface metal side and legs of the heat spreader. Ro-
tate horozontally so the interface metal sits right on top of the CPU. Remove any plastic cover
on the interface metal and apply thermal paste/adhesive if it is required.
Bottom View
Top View

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Chapter 2
HARDWARE INSTALLATION
User's Manual | GHF51
Note:
An optional heatsink can be purchased as an alternative to the heat spreader. The
heatsink comes with attached spring screws and is fairly intuitive in terms of in-
stallation.
Chassis
Interface Metal Side Down
CPU Side Up
Screw * 4
Interface Metal
To Chassis
To Chassis
Chassis
Chassis
Interface Metal Side Down
CPU Side Up
Screw * 4
Interface Metal
To Chassis
To Chassis
Chassis
XAssembly
Rotate the module and heat spreader combo so that the I/O is facing the desired side, and
place the combo in the position of the chassis reserved for your module.
Align the screw holes of the combo to those on the chassis. The combo can be mounted onto
the chassis in two manners — 1) module side to the chassis, or 2) heat spreader side to the
chassis as illustrated below. This shall depend entirely on the design of the chassis with regard
to interior spacing, thermal, and I/O.
Place the screws that come with the standard package into the screw holes, and use a screw
driver to fasten the screws until the combo is securely fixed onto the chassis.
Module side to the chassis Heat spreader side to the chassis
XI/O Connectors
Bottom View
USB 3.1 Gen 2, Type C
LAN
Micro HDMI 2
Micro HDMI 1
Rear I/O Ports
• Intel®I211AT PCI Express Gigabit Ethernet controller (alternatively Intel®
I210IT PCI Express Gigabit Ethernet controller)
• 2 x Micro HDMI with resolution up to 4096x2160 @ 24Hz
Features

11
Chapter 2
HARDWARE INSTALLATION
User's Manual | GHF51
SMBus Front Panel
XI/O Connectors
XI/O Connectors
The SMBus (System Management Bus) connector is used to connect the SMBus device. It is a
multiple device bus that allows multiple chips to connect to the same bus and enable each one
to act as a master by initiating data transfer.
RESET - Reset Switch
This switch allows you to reboot without having to power off the system.
Power/Standby LED
When the system’s power is on, this LED will light up. When the system is in the S1 (POS -
Power On Suspend) state, it will blink at 1-second intervals. When the system is in the S3 (STR
- Suspend To RAM) state, it will blink at 4-second intervals.
Power Button
This switch is used to power on or off the system.
SMBus Pin Assignment
Front Panel Pin Assignment
Pin Assignment Pin Assignment
1N.C. 2SMBus_Alert
3SMBus_DATA 4SMBus_Clock
5GND 63V3SB Pin Assignment Pin Assignment
1N.C. 2Reset
3Power LED 4GND
5Power LED (3V3SB) 6Power Button
SMBus
Front Panel
Top View Top View
1
56
2
1
56
2

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Chapter 2
HARDWARE INSTALLATION
User's Manual | GHF51
Battery
XI/O Connectors
The external lithium ion battery supplies power to the real-time clock and CMOS memory as an
auxiliary source of power when the main power is shut off.
Safety Measures
• There exists explosion hazard if the battery is incorrectly installed.
• Replace only with the same or equivalent type recommended by the manufacturer.
• Dispose of used batteries according to local ordinances.
Battery
3.3V
2
1GND
External Battery
Connect to board
Bottom View Bottom View
12V DC Terminal Block
XI/O Connectors
Important:
Insufficient power supplied to the system may result in instability or malfunction
of the add-in boards and peripherals. Calculating the system’s approximate power
usage is important to ensure that the power supply meets the system’s consump-
tion requirements.
This 2-pin terminal block is considered a low power solution. Connect a DC power cord to this
terminal block by inserting the wire into the block and then screw tight the screw on top to
secure the wire in place. Please make sure the positive and negative wires are installed cor-
rectly. Using a voltage more than the recommended range may fail to boot the system or
cause damage to the system board.
Note:
An optional DC cable converter can be purchased to convert the 2-pin terminal
block to a coaxial DC jack.
1 (+) : +12V
2 (-) : GND

13
Chapter 2
HARDWARE INSTALLATION
User's Manual | GHF51
Digital I/O
The 8-bit Digital I/O (DIO) connector allows for input/output signals of digital logical states de-
fined by voltage levels.
Pin Assignment
1GND
25VSB
3DIO_0
4DIO_1
5DIO_2
6DIO_3
7DIO_4
8DIO_5
9DIO_6
10 DIO_7
Digital I/O Pin Assignment
DIO
Bottom View Bottom View
1 9
2 10
Expansion Slots
Mini PCIe
The Mini PCIe socket allows for a full-size Mini PCIe module, and supports PCIe x1 (Gen3) and
USB 2.0 signals.
BIOS Setting
Configure PCIe root ports in the Advanced menu (“PCI Express Configuration” submenu) of the
BIOS. Refer to chapter 3 for more information.
Mini PCIe
XI/O Connectors
XI/O Connectors

14
Chapter 2
HARDWARE INSTALLATION
User's Manual | GHF51
Before installing the Mini PCIe module into the Mini PCIe socket, please make sure that the fol-
lowing 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 Mini PCIe socket on the system board
4. Make sure the notch on card is aligned to the key on the socket.
Installing the Mini PCIe Module
XExpansion Slots
Mini PCIe Full Size Mini PCIe Socket
Key
Stand-off
Notch
XI/O Connectors
Please follow the steps below to install the card into the socket.
Step 2:
Press the end of the card far from
the socket down until against the
stand-off.
Step 3:
Screw tight the card onto the stand-
off with a screw driver and a stand-
off screw until the gap between
the card and the stand-off closes
up. The card should be lying paral-
lel to the board when it’s correctly
mounted.
Step 1:
Insert the card into the socket at an
angle while making sure the notch
and key are perfectly aligned.
Mini PCIe Half Size Mini PCIe Socket
Key
Stand-off
Notch