JHCTech KMDA-3820 User manual

User’s Manual
User’s Manual
KMDA-3820
Ver.A1.0
Date:28, January, 2019

User’s Manual
Version Note
No.
Ver.
Note
Date
Writer
1
A1.0
first publish
20190128
Tracy Liu

User’s Manual
I
Copyright
The documentation and the software included with this product are copy- righted 2018 by Shenzhen JHC
Technology Co., Ltd. All rights are reserved. Shenzhen JHC Technology 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 Shenzhen JHC Technology Co., Ltd. Information provided in this manual is intended
to be accurate and reliable. However, Shenzhen JHC Technology Co., Ltd. assumes no responsibility for
its use, nor for any infringements of the rights of third parties, which may result from its use.
Acknowledgements
Award is a trademark of Award Software International, Inc.
IBM, PC/AT, PS/2 and VGA are trademarks of International Business Machines Corporation.
Intel, Skylake and Kabylake are trademarks of Intel Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
RTL is a trademark of Realtek Semi-Conductor Co., Ltd.
All other product names or trademarks are properties of their respective owners.
For more information on this and other JHC products, please visit our websites at:
http://www.jhctech.com.cn

User’s Manual
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Product Warranty (2 years)
JHC 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 JHC, or which have been subject to misuse, abuse, accident or improper
installation.
JHC assumes no liability under the terms of this warranty as a consequence of such events.
Because of JHC.s high quality-control standards and rigorous testing, most of our customers never need
to use our repair service. If an JHC product 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 speed, JHC 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 merchandise 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.

User’s Manual
III
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications
when shielded cables are used for external wiring. We recommend the use
of shielded cables. This kind of cable is available from JHC. Please
contact your local supplier for ordering information. 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 enclosure products.
FCC Class A
Note: 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.
Technical Support and Assistance
Step 1. Visit the JHC web site at www.jhctech.com.cn where you can find the latest information about the
product.
Step 2. Contact your distributor, sales representative, or JHC’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

User’s Manual
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CONTENTS
General Information....................................................................................................................................1
1.1 Introduction......................................................................................................................................2
1.2 Features............................................................................................................................................2
1.3 Specifications...................................................................................................................................3
1.3.1 General...............................................................................................................................3
1.3.2 Display...............................................................................................................................3
1.3.3 Ethernet..............................................................................................................................3
1.3.4 Audio .................................................................................................................................3
1.3.5 Power Consumption...........................................................................................................3
1.4 Environmental Specifications..........................................................................................................4
1.5 3820 Series Specifications...............................................................................................................4
1.6 Mechanical Specifications ...............................................................................................................5
Hardware Installation.................................................................................................................................9
2.1 Introduction....................................................................................................................................10
2.2 Jumpers and Connectors ................................................................................................................10
2.2.1 Setting Jumpers...................................................................................................................10
2.3 Jumpers and Switches Location.....................................................................................................11
2.3.1 SW2-Clear CMOS Data .....................................................................................................12
2.3.2 SW1- AT/ATX Power on mode selection..........................................................................13
2.4 I/O/Button/LED Indication............................................................................................................13
2.4.1 Ethernet Connector (LAN) .................................................................................................15
2.4.2 USB Connector...................................................................................................................15
2.4.3 HDMI..................................................................................................................................16
2.4.4 DP .......................................................................................................................................17
2.4.5 VGA....................................................................................................................................17
2.4.6 DIO Connector....................................................................................................................18
2.4.7 Power Input Connector (DC-IN) ........................................................................................18

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2.4.8 COM1/2 Connector ............................................................................................................19
2.4.9 COM3/4 Connector ............................................................................................................20
2.4.10 PS/2 Connector .................................................................................................................20
2.4.11 Remote Switch signal Connector......................................................................................20
2.4.12 Serial ATA1 (S_SATA1) ...................................................................................................21
2.4.13 SATA power connector (P_SATA1)..................................................................................21
2.4.14 mSATA Connector (MSATA1) .........................................................................................22
2.4.15 Mini-PCIe Connector (MPE1)..........................................................................................23
2.4.16 PCI Connector (In Sub-card ECI-239) .............................................................................24
2.4.17 O-PCIeX4 Connector (In Sub-card ECX-238).................................................................26
2.4.18 PCIeX1 Connector (In Sub-card ECX-238) .....................................................................27
2.4.19 LED...................................................................................................................................29
2.5 Installation .....................................................................................................................................30
2.5.1 HDD/SSD Installation ........................................................................................................30
2.5.2 Installing mini-PCIe............................................................................................................32
2.5.3 Installing MSATA ...............................................................................................................36
2.5.4 Installing Expansion Functional Module............................................................................37
BIOS Setup.................................................................................................................................................40
3.1 BIOS Description .........................................................................................................................41
3.1.1 Entering the Setup Utility ................................................................................................41
3.2 BIOS parameter settings .............................................................................................................42
3.2.1 BIOS Navigation Keys......................................................................................................43
3.2.2 Main Menu ........................................................................................................................43
3.2.3 Advanced Menu ................................................................................................................45
3.2.4 Chipset Menu ....................................................................................................................56
3.2.5 Security menu....................................................................................................................66
3.2.6 Boot menu..........................................................................................................................67
3.2.7 Save & Exit menu .............................................................................................................69
3.3 Updating the BIOS ......................................................................................................................70
Driver Installation .....................................................................................................................................71

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4.1 Follow the sequence below to install the drivers:..........................................................................72
4.2 Installation: ....................................................................................................................................72
4.3 CPU TEMP LED driver.................................................................................................................73
4.4 Utility Software Reference ............................................................................................................74
SYSTEM RESOURCE..............................................................................................................................75
5.1 WDT and GPIO .............................................................................................................................76

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General Information
CHAPTER
1

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1.1 Introduction
KMDA-3820 is an embedded industrial Box Computer of JHCTECH, with aluminum chassis and fanless
design. It powered by the Gen. 6th Intel® Skylake-U/Gen. 7th Intel® Kabylake-U CPU. It supports DDR4
2133MHz memory, up to 16GB. It features two PCI or PCIe expansion slots, which can fulfill extensive
requirements in various projects.
KMDA-3820 offers 1*HDMI, 1*DP, 1*VGA, 3 displays, 3*GbE LANs, 7*USB (1 inside for dongle),
4*COM, 8-bit DIO, 1*F-Mini PCIe with SIM slot, which supports 4G LTE/Wifi/BT. 1*mSATA, 1*2.5”
SATA HDD/SSD are used for storage. It supports various optional expansion slots, including PCIe×4,
PCIe×1, PCI. So, users can conveniently select expansion boards based on their requirements. Besides,
DC 12~24V wide power input. It is widely used for Industry Automation, Intelligent Transportation
(ITS), and Machine Vision.
1.2 Features
Key Features
⚫Universal aluminum chassis, fanless design
⚫Intel® Skylake-U/Kabylake-U Celeron/Core I3/I5/I7 CPU
⚫1*260-pin SODIMM, DDR4 2133MHz, up to 16GB
⚫1*F-mini PCIe with SIM slot, support 4G LTE and Wifi/BT
⚫Optional 1*PCIe×4+1*PCIE×1 or 2*PCI or 1*PCI+1*PCI×4 expansion
⚫1*2.5” SATA HDD/SSD bay, 1*mSATA for storage
⚫1*DP, 1*HDMI, 1*VGA, 3 displays
⚫Realtek ALC662VD controller, 1*LINE OUT, 1*MIC
⚫2*Intel I211AT, 1*Intel I219LM, supports Intel vPro technology
⚫8-bit DIO, 4*USB3.0, 3*USB2.0(1 inside), 4*COM
⚫Support TPM 2.0
⚫Clear CMOS switch is on the front panel, easy to clear CMOS data
⚫AT/ATX power-on mode selection switch is on the front panel, easy to set power-on mode
⚫DC 12~24V, CPU temperature show in LED
⚫Have-open L-shaped cover, easy to expand
(Note: KMDA-3820-T00X has 2*LAN, which do not support VGA or TPM2.0)

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1.3 Specifications
1.3.1 General
CPU: Intel®Skylake-U/Kabylake-U Celeron/Core I3/I5/I7 CPU
System Memory: 1*DDR4 2133MHz SODIMM, Up to 16GB
Watchdog Timer: 255-level interval timer, setup by software
Serial Ports: 2* RS232/422/485 DB9 male, 2*RS232 DB9 male
USB: 4*USB 3.0 Type A ports(front), 2*USB2.0 Type A ports(front), 1*USB 2.0 Type A port (inside)
Expansion Interface:
1*Full size Mini PCIe (PCIeX1+USB) with SIM slot
Storage:1* mSATA (SATA+USB2.0)
1*2.5” SATA HDD/SSD bay
1.3.2 Display
Chipset: Gen. 9th Intel® HD Graphics
Display Memory: Shared system memory
Resolution: HDMI 3940x2160@30Hz; DP 4096x2160@60Hz, VGA 1920x1200@60Hz
1.3.3 Ethernet
Chipset: 2*Intel®I211AT Ethernet controllers, 1* Intel® I219LM Ethernet controller
Speed: 10/100/1000 Mbps Integrated
Interface: 3*RJ45
(Note: KMDA-3820-T00X has no Intel I219LM controller which supports 2 LANs)
1.3.4 Audio
Chipset: Realtek ALC662VD controller
Interface: 1*Audio out, 1*MIC, 3.5mm phone jack
1.3.5 Power Consumption
Input Voltage: DC 12~24V Input
Power Consumption: TDP 12/4.88A (I5-7200U CPU, 4GB RAM, 1TB HDD, with expansion card)
Power Adapter: AC to DC 12V/5A, 60W
Power Requirement: Minimum power input DC 12V/5A

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1.4 Environmental Specifications
Operating temperature:
-20 ~ 70°C (Fanless, SSD, Airflow)
-10 ~ 50°C (Fanless, HDD, Airflow)
Relative humidity: 10~90% @ 40°C (non-condensing)
Storage temperature: -40 ~ 85°C (-40 ~ 185°F)
Vibration loading during operation:
With SSD: 5.0 Grms, random, 5 ~ 500 Hz
With HDD:1.0 Grms, random, 5 ~ 500 Hz
Shock during operation:
With SSD: 50g, peak acceleration (11 ms duration)
With HDD:20g peak acceleration (11 ms duration)
EMC: CE, FCC Class A
1.5 3820 Series Specifications
Model NO.
3820-S00X
3820-T00X
CPU
Intel® Skylake-U/Kabylake-U
Celeron/Core I3/I5/I7 CPU
Intel® Skylake-U/Kabylake-U
Celeron/Core I3/I5/I7 CPU
DDR4
1
1
LAN
3
2
USB
4*USB3.0 3*USB2.0
4*USB3.0 3*USB2.0
COM
4
4
PS/2
Keyboard & Mouse
Keyboard & Mouse
DIO/bit
8-bit
8-bit
Display
1*HDMI, 1*DP, 1*VGA
1*HDMI, 1*DP
Audio
1*Line Out, 1*MIC
1*Line Out, 1*MIC
Expansion
1*mini-PCIe, 1*mSATA
2*PCI/1*PCIeX4+1*PCIeX1/1*P
CI+1*PCIeX4 slots
1*mini-PCIe, 1*mSATA
2*PCI/1*PCIeX4+1*PCIeX1/1*PCI
+1*PCIeX4 slots

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1.6 Mechanical Specifications
The KMDA-3820 new industrial design Box computer of JHCTECH, consists of a JHC SBC(STX-I905),
a sub-card (ECD-9050), and an expansion card ECX-238 or ECI-239.
The specific combination is as follows：
Model No.
KMDA-3820-S00X
KMDA-3820-T00X
STX-I905-S00X
✓

STX-I905-T001

✓
ECD-9050
✓
✓
ECX-238/ECI-239
✓
✓
Main Board Front (STX-I905)
Figure 1.1

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Main Board Rear (STX-I905)
Figure 1.2
Sub-card (ECD-9050)
Figure 1.3

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Expansion card (ECX-238)
Figure 1.4
Expansion card (ECI-239)
Figure 1.5

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KMDA-3820 Dimension: Unit: mm
Figure 1.6

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Hardware Installation
CHAPTER
2

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2.1 Introduction
The following sections show the internal jumper/switch settings and the external connectors and pin
assignments for applications.
The KMDA-3820 new industrial design Box computer of JHCTECH, consists of a JHC SBC(STX-I905),
a sub-card (ECD-9050) and an expansion card ECX-238/ECI-239.
The specific combination is as follows：
Model No.
KMDA-3820-S00X
KMDA-3820-T00X
STX-I905-S00X
✓

STX-I905-T001

✓
ECD-9050
✓
✓
ECX-238/ECI-239
✓
✓
2.2 Jumpers and Connectors
2.2.1 Setting Jumpers
You can configure your KMDA-3820 to match the needs of your application by setting the jumpers or
switches. A jumper is the simplest kind of electrical switch. It consists of two metal pins and a small
metal clip (often protected by a plastic cover) that slides over the pins to connect them. To —close “a
jumper, you connect the pins with the clip”. To —open “a jumper you remove the clip”. Sometimes a
jumper will have three pins, labeled 1, 2, and 3. In this case, you would connect either pins 1 and 2 or
pins 2 and 3.
Figure 2. 1
The jumper settings are schematically depicted in this manual as follows:

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Figure 2. 2
A pair of needle-nose pliers may be helpful when working with jumpers. If you have any doubts about the
best hardware configuration for your application, contact your local distributor or sales representative
before you make any changes.
2.3 Jumpers and Switches Location
The KMDA-3820 Box Computer has a number of jumpers or switches inside the chassis that allows you
to configure your system to suit your application. The table below shows the function of each of the
board’s jumpers and Switches:
Figure 2. 3

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Jumpers/Switches
Jumpers/Switcher
Name
Description
SW2
Clear CMOS Data Setting
3-Pin Switch
SW1
Set Power-on mode at AT or ATX
3-Pin Switch
2.3.1 SW2-Clear CMOS Data
Figure 2. 4
If you encounter the followings
a) CMOS data becomes corrupted.
b) You forget the supervisor or user password.
you can reconfigure the system with the default values stored in the ROM BIOS.
To load the default values stored in the ROM BIOS, please follow the steps below.
1. Power-off the system and unplug the power cord.
2. Set CMOS pins 2 and 3 to On. Wait for a few seconds and set CMOS back to its default setting,
pins 1 and 2 On.
3. Now plug the power cord and power-on the system.