Advantech SOM-6868 User manual

The information contained in this document has been carefully researched and is, to the best of our
knowledge, accurate. However, we assume no liability for any product failures or damages, immediate or
consequential, resulting from the use of the information provided herein. Our products are not intended for
use in systems in which failures of product could result in personal injury. All trademarks mentioned herein
are property of their respective owners. All specifications are subject to change without notice.
Manual
ADVANTECH
SOM-6868
COM-Express® Compact Computer-on-Module with Intel® Braswell
Atom™X5-E800 / Pentium® N3710 / Celeron® N3160, N3060, N3010 Processor,

User Manual
SOM-6868

SOM-6868 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2015
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. How-
ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments of the rights of third parties, which may result from its use.
Acknowledgements
Intel® and Pentium® are trademarks of Intel Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandize
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Part No. 2006686800 Edition 1
Printed in Taiwan December 2016

iii SOM-6868 User Manual
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications. Test conditions
for passing included the equipment being operated within an industrial enclosure. In
order to protect the product from being damaged by ESD (Electrostatic Discharge)
and EMI leakage, we strongly recommend the use of CE-compliant industrial enclo-
sure products.
FCC Class B
Note: 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 reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interfer-
ence to radio or television reception, which can be determined by turning the equip-
ment off and on, the user is encouraged 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 receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FM
This equipment has passed the FM certification. According to the National Fire Pro-
tection Association, work sites are classified into different classes, divisions and
groups, based on hazard considerations. This equipment is compliant with the speci-
fications of Class I, Division 2, Groups A, B, C and D indoor hazards.
Technical Support and Assistance
1. Visit the Advantech website at http://support.advantech.com where you can find
the latest information about the product.
2. Contact your distributor, sales representative, or Advantech's customer service
center for technical support if you need additional assistance. Please have the
following information ready before you call:
–Product name and serial number
–Description of your peripheral attachments
–Description of your software (operating system, version, application software,
etc.)
–A complete description of the problem
–The exact wording of any error messages

SOM-6868 User Manual iv
Warnings, Cautions and Notes
Document Feedback
To assist us in making improvements to this manual, we would welcome comments
and constructive criticism. Please send all such comments in writing to: sup-
[email protected]
Packing List
Before setting up the system, check that the items listed below are included and in
good condition. If any item does not accord with the table, please contact your dealer
immediately.
1 x SOM-6868 CPU module
1 x Heat spreader (1960075199N001)
Selection Guide w/ P/N
Warning! Warnings indicate conditions, which if not observed, can cause personal
injury!
Caution! Cautions are included to help you avoid damaging hardware or losing
data. e.g.
There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.
Note! Notes provide optional additional information.
Part No. CPU
Frequency
Base/Burst
CPU
TDP Core DDR3L
Memory LVDS VGA DDI
Giga
Lan
HD
Audio
PCIe
x1
USB
2.0
USB
3.0 SATA
III LPC Powe r
Thermal
Solution
Oper-
ating
Te m p .
SOM-6868PC-
S6A1E
Pen-
tium®
N3710
1.6/2.56
GHz 6 W 4 DDR3-L 1600 MHz
18/
24-bit 121Yes5 8 42 Yes
AT/
ATX Passive 0 ~ 60° C
SOM-6868RC-
S6A1E
Celeron®
N3160
1.6/2.24
GHz 6 W 4 DDR3-L 1600 MHz
18/
24-bit 121Yes5 8 42 Yes
AT/
ATX Passive 0 ~ 60° C
SOM-6868RC-
S5A1E
Celeron®
N3060
1.6/2.48
GHz 6 W 2 DDR3-L 1600 MHz
18/
24-bit 121Yes5 8 42 Yes
AT/
ATX Passive 0 ~ 60° C
SOM-6868RC-
S0A1E
Celeron®
N3010
1.04/2.24
GHz 4 W 2 DDR3-L 1600 MHz
18/
24-bit 121Yes5 8 42 Yes
AT/
ATX Passive 0 ~ 60° C
SOM-6868AC-
S0A1E
Atom™
X5-E8000 1.04/2 GHz 5 W 4 DDR3-L 1600 MHz
18/
24-bit 121Yes5 8 42 Yes
AT/
ATX Passive 0 ~
60° C

v SOM-6868 User Manual
Development Board
Accessories
Safety Instructions
1. Read these safety instructions carefully.
2. Keep this User Manual for later reference.
3. Disconnect this equipment from any AC outlet before cleaning. Use a damp
cloth. Do not use liquid or spray detergents for cleaning.
4. For plug-in equipment, the power outlet socket must be located near the equip-
ment and must be easily accessible.
5. Keep this equipment away from humidity.
6. Put this equipment on a reliable surface during installation. Dropping it or letting
it fall may cause damage.
7. The openings on the enclosure are for air convection. Protect the equipment
from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source is correct before connecting the
equipment to the power outlet.
9. Position the power cord so that people cannot step on it. Do not place anything
over the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source
to avoid damage by transient overvoltage.
12. Never pour any liquid into an opening. This may cause fire or electrical shock.
13. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
14. If one of the following situations arises, get the equipment checked by service
personnel:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment does not work well, or you cannot get it to work according to
the user's manual.
The equipment has been dropped and damaged.
The equipment has obvious signs of breakage.
15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT WHERE THE
STORAGE TEMPERATURE MAY GO BELOW -20° C (-4° F) OR ABOVE 60° C
(140° F). THIS COULD DAMAGE THE EQUIPMENT. THE EQUIPMENT
SHOULD BE IN A CONTROLLED ENVIRONMENT.
Part No. Description
SOM-DB5800-00A2E COM Express Development Board A2 Type 6 Pin-out
Part No. Description
1960048815N001 Semi-Heatsink 95 x 95 x 16.25 mm
1960048819N001 Semi-Cooler 95 x 95 x 33 mm

SOM-6868 User Manual vi
16. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE
RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES
ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.
The sound pressure level at the operator's position according to IEC 704-1:1982 is
no more than 70 dB (A).
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.
Safety Precaution - Static Electricity
Follow these simple precautions to protect yourself from harm and the products from
damage.
To avoid electrical shock, always disconnect the power from your PC chassis
before you work on it. Don't touch any components on the CPU card or other
cards while the PC is on.
Disconnect power before making any configuration changes. The sudden rush
of power as you connect a jumper or install a card may damage sensitive elec-
tronic components.

vii SOM-6868 User Manual
Acronyms
Term Define
AC’97 Audio CODEC (Coder-Decoder)
ACPI Advanced Configuration Power Interface – standard to implement power saving
modes in PC-AT systems
BIOS Basic Input Output System – firmware in PC-AT system that is used to initialize
system components before handing control over to the operating system
CAN
Controller-area network (CAN or CAN-bus) is a vehicle bus standard designed
to allow microcontrollers to communicate with each other within a vehicle with-
out a host computer
DDI Digital Display Interface – containing DisplayPort, HDMI/DVI, and SDVO
EAPI
Embedded Application Programmable Interface
Software interface for COM Express®specific industrial function
System information
Watchdog timer
I2C Bus
Flat Panel brightness control
User storage area
GPIO
GbE Gigabit Ethernet
GPIO General purpose input output
HDA
Intel High Definition Audio (HD Audio) refers to the specification released by
Intel in 2004 for delivering high definition audio that is capable of playing back
more channels at higher quality than AC’97
I2C
Inter Integrated Circuit – 2 wire (clock and data) signaling scheme allowing
communication between integrated circuit, primarily used to read and load reg-
ister values
ME Management Engine
PC-AT “Personal Computer – Advanced Technology” – an IBM trademark term used to
refer to Intel based personal computer in 1990s
PEG PCI Express Graphics
RTC Real Time Clock – battery backed circuit in PC-AT systems that keeps system
time and date as well as certain system setup parameters
SPD Serial Presence Detect – refers to serial EEPROM on DRAMs that has DRAM
Module configuration information
TPM Trusted Platform Module, chip to enhance the security features of a computer
system
UEFI Unified Extensible Firmware Interface
WDT Watch Dog Timer

SOM-6868 User Manual viii

ix SOM-6868 User Manual
Contents
Chapter 1 General Information ............................1
1.1 Introduction ............................................................................................... 2
1.2 Specifications ............................................................................................ 2
1.3 Functional Block Diagram ....................................................................... 10
Figure 1.1 Functional Block Diagram......................................... 10
Chapter 2 Mechanical Information ....................11
2.1 Board Information.................................................................................... 12
Figure 2.1 Board Chips Identify - Front...................................... 12
Figure 2.2 Board Chips Identify - Back ...................................... 12
2.1.1 Connector List............................................................................. 13
Table 2.1: FAN1 Fan ................................................................. 13
2.2 Mechanical Drawing................................................................................ 13
Figure 2.3 Board Mechanical Drawing - Front ........................... 13
Figure 2.4 Board Mechanical Drawing - Back ........................... 14
Figure 2.5 Board Mechanical Drawing - Side ............................ 14
2.3 Assembly Drawing .................................................................................. 15
Figure 2.6 Assembly Drawing.................................................... 15
2.4 Assembly Drawing .................................................................................. 16
Figure 2.7 Main Chip Height and Tolerance .............................. 16
Chapter 3 BIOS....................................................17
Figure 3.1 Setup program initial screen..................................... 18
3.1 Entering Setup ........................................................................................ 19
3.2 Main Setup .............................................................................................. 19
Figure 3.2 Main Setup Screen ................................................... 19
3.3 Advanced BIOS Features Setup ............................................................. 20
Figure 3.3 Advanced BIOS Features Setup Screen .................. 20
3.3.1 Intel® I211 Gigabit Network Connection- 00:19:0F:26:... ........... 21
Figure 3.4 Intel® I211 Gigabit Network Connections................. 21
Figure 3.5 NIC Configuration ..................................................... 22
3.3.2 Trusted Computing ..................................................................... 23
Figure 3.6 Trusted Computing ................................................... 23
3.3.3 ACPI Settings.............................................................................. 24
Figure 3.7 ACPI Settings ........................................................... 24
3.3.4 W83627DHG Super IO Configuration......................................... 25
Figure 3.8 W83627DHG Super IO Configuration ...................... 25
Figure 3.9 Serial Port 1 Configuration ....................................... 26
Figure 3.10Serial Port 2 Configuration ....................................... 27
Figure 3.11Parallel Port Configuration........................................ 28
3.3.5 iManager Configuration............................................................... 29
Figure 3.12iManager Configuration ............................................ 29
Figure 3.13Serial Port 3 Configuration ....................................... 30
Figure 3.14Serial Port 4 Configuration ....................................... 31
Figure 3.15Hardware Monitor ..................................................... 32
3.3.6 Serial Port Console Redirection.................................................. 33
Figure 3.16Serial Port Console Redirection ............................... 33
3.3.7 CPU Configuration ...................................................................... 34
Figure 3.17CPU Redirection....................................................... 34
Figure 3.18Socket 0 CPU Information ........................................ 35
3.3.8 SATA Configuration .................................................................... 36