Avalue Technology EMX-C246DP User manual

Part No. E2047M24D00R
EMX-C246DP
Intel® 8/9th Generation Core™ Processor Thin Mini ITX
Motherboard With Intel® C246 Chipset
User’s Manual
1st Ed –22 April 2020

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FCC Statement
THIS DEVICE COMPLIES WITH PART 15 FCC RULES. OPERATION IS
SUBJECT TO THE FOLLOWING TWO CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE.
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS
FOR A CLASS "A" DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES.
THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST
HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A
COMMERCIAL ENVIRONMENT. 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.
OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE
HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO
CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.
Notice
This guide is designed for experienced users to setup the system within the shortest time.
For detailed information, please always refer to the electronic user's manual.
Copyright Notice
Copyright 2020 Avalue Technology Inc., ALL RIGHTS RESERVED.
No part of this document may be reproduced, copied, translated, or transmitted in any form
or by any means, electronic or mechanical, for any purpose, without the prior written
permission of the original manufacturer.
Trademark Acknowledgement
Brand and product names are trademarks or registered trademarks of their respective
owners.
Disclaimer
Avalue Technology Inc. reserves the right to make changes, without notice, to any product,
including circuits and/or software described or contained in this manual in order to improve
design and/or performance. Avalue Technology assumes no responsibility or liability for the
use of the described product(s), conveys no license or title under any patent, copyright, or
masks work rights to these products, and makes no representations or warranties that

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these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified. Applications that are described in this manual are for illustration
purposes only. Avalue Technology Inc. makes no representation or warranty that such
application will be suitable for the specified use without further testing or modification.
Life Support Policy
Avalue Technology’s PRODUCTS ARE NOT FOR USE AS CRITICAL COMPONENTS IN
LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE PRIOR WRITTEN APPROVAL
OF Avalue Technology Inc.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into body, or (b) support or sustain life and whose failure to perform,
when properly used in accordance with instructions for use provided in the labeling, can
be reasonably expected to result in significant injury to the user.
2. A critical component is any component of a life support device or system whose
failure to perform can be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or effectiveness.
A Message to the Customer
Avalue Customer Services
Each and every Avalue’s product is built to the most exacting specifications to ensure
reliable performance in the harsh and demanding conditions typical of industrial
environments. Whether your new Avalue device is destined for the laboratory or the factory
floor, you can be assured that your product will provide the reliability and ease of operation
for which the name Avalue has come to be known.
Your satisfaction is our primary concern. Here is a guide to Avalue’s customer services. To
ensure you get the full benefit of our services, please follow the instructions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions, you can
easily find answers in your product documentation. These answers are normally a lot more
detailed than the ones we can give over the phone. So please consult the user’s manual
first.
To receive the latest version of the user’s manual; please visit our Web site at:
http://www.avalue.com.tw/

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Product Warranty
Avalue 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 purchase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Avalue, or which have been subject to
misuse, abuse, accident or improper installation. Avalue assumes no liability under the
terms of this warranty as a consequence of such events. Because of Avalue’s high
quality-control standards and rigorous testing, most of our customers never need to use our
repair service. If any of Avalue’s products is defective, 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 type and speed, Avalue’s products model name, hardware & BIOS
revision number, other hardware and software used, etc.) Note anything
abnormal and list any on-screen messages you get when the problem occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information available.
3. If your product is diagnosed as defective, obtain an RMA (return material
authorization) number from your dealer. This allows us to process your good
return more quickly.
4. Carefully pack the defective product, a complete 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.

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Content
1. Getting Started............................................................................................................8
1.1 Safety Precautions....................................................................................................8
1.2 Packing List...............................................................................................................8
1.3 Document Amendment History .................................................................................9
1.4 Manual Objectives...................................................................................................10
1.5 System Specifications.............................................................................................11
1.6 Architecture Overview—Block Diagram..................................................................17
2. Hardware Configuration...........................................................................................18
2.1 Product Overview....................................................................................................19
2.2 Jumper and Connector List.....................................................................................21
2.3 Setting Jumpers & Connectors ...............................................................................23
2.3.1 Serial port 1 pin9 signal select (JRI1) ............................................................................................ 23
2.3.2 BIOS ME function configuration (JME1) ........................................................................................ 23
2.3.3 Clear CMOS (JCMOS1)................................................................................................................. 24
2.3.4 JPGE connector (JPGE1) .............................................................................................................. 24
2.3.5 AT/ATX Power Mode Select (JSATX1).......................................................................................... 25
2.3.6 General purpose I/O connector (DIO1).......................................................................................... 25
2.3.7 ATX Power connector (ATXPWR1) ............................................................................................... 26
2.3.8 USB connector (JUSB1)................................................................................................................. 26
2.3.9 USB connector (JUSB2)................................................................................................................. 27
2.3.10 Battery connector (BAT1).............................................................................................................. 27
2.3.11 LPC connector (JLPC1)................................................................................................................. 28
2.3.12 Miscellaneous setting connector (SPI1)........................................................................................ 28
2.3.13 Speaker connector (SPK1)............................................................................................................ 29
2.3.14 LCD Inverter connector (JBKL1) ................................................................................................... 29
2.3.15 Front Panel connector (JFP1) ....................................................................................................... 30
2.3.16 CPU fan connector (CPUFAN1).................................................................................................... 30
2.3.17 System fan connector (SYSFAN1)................................................................................................ 31
2.3.18 Auxiliary Panel connector (JAUXP1)............................................................................................. 31
2.3.19 Serial port connector (COM1)........................................................................................................ 32
2.3.20 Serial port connector (COM2)........................................................................................................ 32
2.3.21 Serial port connector (COM3)........................................................................................................ 33
2.3.22 Serial port connector (COM4)........................................................................................................ 33
2.3.23 J1RS1 connector (J1RS1)............................................................................................................. 34
2.3.24 Front Audio connector (FAUD1).................................................................................................... 34
2.3.25 PS/2 keyboard & mouse header (KBMS1).................................................................................... 35

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2.3.26 SATA Power connector 1/2 (SPWR1/2)........................................................................................ 35
2.3.27 SMBus connector (JSMB1)........................................................................................................... 36
2.3.28 eDP-Panel connector (EDP 1)....................................................................................................... 36
2.3.29 LVDS connector (LVDS1).............................................................................................................. 37
2.3.30 USB connector (JUSB3)................................................................................................................ 38
2.3.31 Power connector (PWR1).............................................................................................................. 38
3.BIOS Setup....................................................................................................................39
3.1 Introduction .............................................................................................................40
3.2 Starting Setup .........................................................................................................40
3.3 Using Setup ............................................................................................................41
3.4 Getting Help............................................................................................................42
3.5 In Case of Problems................................................................................................42
3.6 BIOS setup..............................................................................................................43
3.6.1 Main Menu...................................................................................................................................... 43
3.6.1.1 System Language.................................................................................................................. 44
3.6.1.2 System Date.......................................................................................................................... 44
3.6.1.3 System Time.......................................................................................................................... 44
3.6.2 Advanced Menu ............................................................................................................................. 44
3.6.2.1 CPU Configuration................................................................................................................. 45
3.6.2.1.1 CPU - Power Management Control....................................................................................... 46
3.6.2.2 PCH-FW Configuration.......................................................................................................... 47
3.6.2.2.1 OEM Flags Settings............................................................................................................... 48
3.6.2.2.2 Firmware Update Configuration............................................................................................. 48
3.6.2.3 Trusted Computing................................................................................................................ 49
3.6.2.4 ACPI Settings ........................................................................................................................ 49
3.6.2.5 Super IO Configuration.......................................................................................................... 50
3.6.2.5.1 Serial Port 1 Configuration .................................................................................................... 51
3.6.2.5.2 Serial Port 2 Configuration .................................................................................................... 51
3.6.2.5.3 Serial Port 3 Configuration .................................................................................................... 52
3.6.2.5.4 Serial Port 4 Configuration .................................................................................................... 52
3.6.2.6 NCT6106D H/W Monitor........................................................................................................ 53
3.6.2.6.1 Smart Fan Configuration ....................................................................................................... 53
3.6.2.7 S5 RTC Wake Settings.......................................................................................................... 55
3.6.2.8 Serial Port Console Redirection ............................................................................................ 55
3.6.2.8.1 Legacy Console Redirection Settings ................................................................................... 56
3.6.2.9 USB Configuration................................................................................................................. 57
3.6.2.10 NVMe Configuration .............................................................................................................. 58
3.6.2.11 Network Stack Configuration................................................................................................. 58
3.6.3 Chipset ........................................................................................................................................... 59
3.6.3.1 System Agent (SA) Configuration.......................................................................................... 59

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3.6.3.1.1 Memory Configuration ........................................................................................................... 60
3.6.3.1.2 Graphics Configuration.......................................................................................................... 61
3.6.3.1.3 DMI/OPI Configuration .......................................................................................................... 61
3.6.3.1.4 PEG Port Configuration......................................................................................................... 62
3.6.3.1.4.1PEG Port Feature Configuration............................................................................................ 63
3.6.3.2 PCH-IO Configuration............................................................................................................ 63
3.6.3.2.1 PCI Express Configuration .................................................................................................... 64
3.6.3.2.1.1M.2 KeyB (PCI-E Port 1) ....................................................................................................... 64
3.6.3.2.1.2Intel I211/I210 LAN Chip (PCI-E Port 6)................................................................................ 65
3.6.3.2.1.3M.2 KeyE (PCI-E Port 7~8) ................................................................................................... 66
3.6.3.2.1.4Intel I211/I210 LAN Chip (PCI-E Port 11).............................................................................. 67
3.6.3.2.1.5M.2 KeyM (PCI-E Port 21~24)............................................................................................... 68
3.6.3.2.2 SATA And RST Configuration ............................................................................................... 69
3.6.3.2.3 HD Audio Configuration......................................................................................................... 70
3.6.3.3 Board Configuration............................................................................................................... 70
3.6.4 Security........................................................................................................................................... 72
3.6.4.1 Secure Boot ............................................................................................................................... 72
3.6.4.1.1 Restore Factory Keys............................................................................................................ 73
3.6.4.1.2 Key Management................................................................................................................... 74
3.6.5 Boot................................................................................................................................................ 74
3.6.6 Save & Exit..................................................................................................................................... 75
3.6.5.1 Save Changes and Reset...................................................................................................... 75
3.6.5.2 Discard Changes and Reset.................................................................................................. 76
3.6.5.3 Restore Defaults.................................................................................................................... 76
3.6.5.4 Launch EFI Shell from filesystem device .............................................................................. 76
4. Drivers Installation.......................................................................................................77
4.1 Install Chipset Driver...............................................................................................78
4.2 Install VGA Driver....................................................................................................79
4.3 Install ME Driver......................................................................................................80
4.4 Install Audio Driver..................................................................................................81
4.5 Install LAN Driver....................................................................................................82
4.6 Install RST Driver....................................................................................................84
5. Mechanical Drawing ....................................................................................................86

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1. Getting Started
1.1 Safety Precautions
Warning!
Always completely disconnect the power cord from your
chassis whenever you work with the hardware. Do not
make connections while the power is on. Sensitive
electronic components can be damaged by sudden power
surges. Only experienced electronics personnel should
open the PC chassis.
Caution!
Always ground yourself to remove any static charge before
touching the CPU card. Modern electronic devices are very
sensitive to static electric charges. As a safety precaution,
use a grounding wrist strap at all times. Place all electronic
components in a static-dissipative surface or static-shielded
bag when they are not in the chassis.
1.2 Packing List
Before you begin installing your single board, please make sure that the
following materials have been shipped:
1 x EMX-C246DP motherboard
2 x SATA cables
1 x SATA power cable
1 x I/O Shield

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1.3 Document Amendment History
Revision
Date
By
Comment
1st
April 2020
Avalue
Initial Release

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1.4 Manual Objectives
This manual describes in details Avalue Technology EMX-C246DP Single Board.
We have tried to include as much information as possible but we have not duplicated
information that is provided in the standard IBM Technical References, unless it proved to
be necessary to aid in the understanding of this board.
We strongly recommend that you study this manual carefully before attempting to set up
EMX-C246DP or change the standard configurations. Whilst all the necessary information
is available in this manual we would recommend that unless you are confident, you contact
your supplier for guidance.
Please be aware that it is possible to create configurations within the CMOS RAM that
make booting impossible. If this should happen, clear the CMOS settings, (see the
description of the Jumper Settings for details).
If you have any suggestions or find any errors regarding this manual and want to inform us
of these, please contact our Customer Service department with the relevant details.

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1.5 System Specifications
System
CPU
Intel® 8th Gen Supports LGA 1151 CPU Up to 65W Max
Intel® 9th Gen Supports 4 core & 6 core CPU (TDP: 65W), 8 core CPU, only support
CPU TDP up to 35W Max.
BIOS
AMI uEFI BIOS, 256Mbit SPI Flash ROM
System Chipset
Intel® C246 Chipset
I/O Chip
Nuvoton® NCT6106D
System Memory
Two 260-pin DDR4 2400/2666MHz SO-DIMM socket, supports up to 64GB Max
(ECC memory supported by CPU)
Watchdog Timer
H/W Reset, 5~255 seconds/5~255 minutes
H/W Status
Monitor
Monitoring CPU & System Temperature and Voltage
TPM
Onboard Infineon SLB9665 support TPM 2.0
Expansion Slot
M.2
1 x M.2 (2242/2260/2280) M-Key, support Intel RST, PCI-e x4 mode SSD
1 x M.2 (2230) E-Key, support WiFi module
1 x M.2 (3042/2242/2260/2280) B-Key, support WWAN+GNSS with SIM card slot &
SSD (SATA)
PCIe
1 x PCI-e x16 (Max TDP 25W)
Storage
SATA
2 x SATA III
Edge I/O
LAN
1 x Intel® I219LM Gigabit Ethernet PHY
2 x Intel® I210AT PCI-e Gigabit Ethernet (Co-lay Intel® I211AT/I210AT)
USB 3.1
3 x USB 3.1 Gen 2, 1 x USB 3.1 Gen 1 at I/O
HDMI
3 x HDMI 1.4b: 3840 x 2160 @ 30 Hz, 2560 x 1600@ 30 Hz
Onboard I/O
COM
COM 1: Support RS232/422/485 selected by BIOS
1 x 2 x 3 pin, pitch 2.00mm connector for COM1 support RS422/485 connector, Pin
5 with +5V(JIRS1)
1 x 2 x 3 pin, pitch 2.00mm connector(for jumper setting) for COM 1 support RS232
with Pin 9,+5V/+12V/RI by jumper
4 x 2 x 5 pin, pitch 2.00mm connector for COM 1~4 support RS-232 connector
USB 2.0
2 x 2 x 5 pin pitch 2.54mm connector for 4 x USB 2.0
USB 3.1
1 x 2 x 10 pin, pitch 2.0mm connector for 2 x USB 3.0
GPIO
1 x 2 x 10 pin, pitch 2.00mm connector for GPIO: 16 bits & +5VS Level SMBus

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SATA Power
2 x SATA power connectors
CPU/System FAN
1 x 1 x 4 pin, pitch 2.54mm CPU fan connector with smart fan function supported
1 x 1 x 4 pin, pitch 2.54mm System fan connector with smart fan function supported
Buzzer
1 x Onboard buzzer
Front Panel
1 x 2 x 5 pin, pitch 2.54mm connector for front panel
RTC Battery
1 x 2 Pin Pitch 1.25mm Vertical type battery connector
AT/ATX Selector
1 x 1 x 3 pin pitch 2.00mm connector for AT/ATX jumper
Clear CMOS
1 x 1 x 3 pin, pitch 2.54mm connector for COMS Clear
LVDS
1 x 2 x 20 pin, pitch 1.25mm connector for LVDS
LCD Inverter
1 x 1 x 5 pin, pitch 2.00mm Wafer connector for LCD inverter backlight connector
(5V/12V)
LPC
1 x 2 x 5 pin, pitch 2.0mm connector for LPC
BIOS SPI
1 x 2 x 4 pin, pitch 2.00mm connector for BIOS SPI
Audio
1 x 2 x 5 pin, pitch 2.54mm connector for front Audio
Activity Indicator
LED
1 x 2 x 3 pin, pitch 2.00mm connector for LAN1 ~LAN3 Activity Indicator LED Power
good LED
DC-Input
1 x 2 x 2 pin for DC in power connector
DC in +12V~26V(+/-5%) 4-pin DC-in
Amp Connector
1 x 4 pin, pitch wafer 2.00mm connector for 6W Speaker
PS2
1 x PS2 KB/MS by pin header
System I2C
1 x 1 x 5 pin, pitch 2.00mm, +3.3S Level
Display
Graphic Chipset
Intel® 8/9th Generation CPU integrated
Spec. &
Resolution
3 x HDMI 1.4b: 3840 x 2160 @ 30 Hz, 2560 x 1600@ 30 Hz
Note: This resolution is actual test result. Intel resolution: 4096x2160@24Hz
2CH 18/24bits LVDS 1920 x 1080 (Chrontel. CH7511B eDP to LVDS Converter)
Multiple Display
Triple Display
Audio
Audio Codec
Realtek ALC892 HD Audio Decoding Controller
Amplifier
TI TPA3113D2PWP Stereo Class-D 6W amplifier
Ethernet
LAN Chipset
1 x Intel® I219LM Gigabit Ethernet PHY
2 x Intel® I210AT PCI-e Gigabit Ethernet (Co-lay Intel® I211AT/I210AT)
LAN Spec.
10/100/1000 Base-Tx GbE compatible
Mechanical & Environmental Specification
Power
Requirement
DC in +12V~26V(+/-5%) 4-pin DC-in
ACPI
Single power ATX Support S0, S3, S4, S5
ACPI 5.0 Compliant

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Power Mode
AT / ATX mode Switchable Through Jumper
Operating Temp.
0°C ~ 60°C with 0.2m/s air flow
Storage Temp.
-40~ +75°C
Operating
Humidity
40°C @ 95% Relative Humidity, Non-condensing
Size (L x W)
6.7" x 6.7" (170mm x 170mm)
Weight
0.40 kg
Vibration Test
Package Vibration Test
Reference IEC60068-2-64 Testing procedures
Test Fh: Vibration broadband random Test
PSD: 0.026G²/Hz, 2.16 Grms
Non-operation mode
Test Frequency: 5-500Hz
Test Axis: X,Y and Z axis
30 min. per each axis
IEC 60068-2-64 Test:Fh
Random Vibration Operation
Reference IEC60068-2-64 Testing procedures
Test Fh : Vibration broadband random Test
PSD: 0.00454G²/Hz, 1.5 Grms
Operation mode
Test Frequency : 5-500Hz
Test Axis : X,Y and Z axis
30 minutes per each axis
IEC 60068-2-64 Test:Fh
Random Vibration Non Operation
Reference IEC60068-2-64 Testing procedures
Test Fh : Vibration broadband random Test
PSD: 0.01818G²/Hz, 3.0 Grms
Non Operation mode
Test Frequency : 5-500Hz
Test Axis : X,Y and Z axis
30 minutes per each axis
IEC 60068-2-64 Test:Fh
Drop Test
Packing Drop
Reference ISTA 2A, Method : IEC-60068-2-32 Test: Ed
Drop Test
1 One corner , three edges, six faces

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OS Information
Win10 64bit, Linux
Note: Specifications are subject to change without notice.
User condition suggestion:
Per motherboard wide voltage power solution:
Power Adapter
AWG: 14, DC Length: 400~1000mm
12V
24V
CPU TDP: 35W
V
V
CPU TDP: 65W
X
V
For DC-IN 12V/24V
Total power supply should be at least 144W, (Exclude PCI-e x16 device)
Total power supply should be at least 174W, (Include PCI-e x16 device)
Power Adapter suggestion: AWG: 14, DC Length: 400~1000mm.
PCI-e x16 Slot device TDP: 25W Max.
1U low profile CPU cooler can only be used for CPU TDP: 35W or lower.
Suggestion Cooler type

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ATXPWR1 is suggest for internal test only, if needed, cable suggestion: AWG: 16, DC Length: 100mm Max. &
24V DC-in adapter.
By referring to INTEL Thin Mini-ITX Based PC System Design Guide for your system product.
Reference to below link PDF file, Item 5 Mechanical & Item 6 Low Profile Reference Heat Pipe Thermal
Solution.
https://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/thin-mini-itx-based-p
c-system-design-guide-rev-1-2.pdf
Avalue do not recommend to design fanless system product with EMX-C246DP.
For Fanless design, please check especially with CPU temperature; it is highly recommend to add thermal
solutions to avoid over specification.
Especially, it is highly recommended to carefully design thermal solutions for the components marked in
green area.
IOTG CPU support list:

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Information refer to Intel® ‘s IOTG documentations.

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1.6 Architecture Overview—Block Diagram
The following block diagram shows the architecture and main components of EMX-C246DP.

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2. Hardware
Configuration

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2.1 Product Overview

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