DFI CS331-C246 User manual

A52410940
CS331-C246/Q370
MicroATX Industrial Motherboard
User’s Manual

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CS331-C246/Q370
2
Copyright
This publication contains information that is protected by copyright. No part of it may be re-
produced 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 web-
site will always provide the most updated information.
© 2019. 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 receiver
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 compli-
ance 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.

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CS331-C246/Q370
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Copyright............................................................................2
Trademarks.........................................................................2
FCC and DOC Statement on Class B ....................................2
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........................................9
Board Layout .................................................................9
System Memory .............................................................9
Installing the DIMM Module .....................................10
CPU.............................................................................11
Installing the CPU....................................................12
Installing the Fan and Heat Sink...............................14
Jumper Settings ...........................................................15
Clear CMOS.............................................................15
Mini PCIe/mSATA Signal Select .................................15
COM1/COM2 RS232/422/485 Select..........................16
COM1/COM2 RS232/Power Select.............................17
PS/2 Power Select ...................................................18
USB Power Select ....................................................18
Rear Panel I/O Ports.....................................................19
PS/2 Keyboad/Mouse Port ........................................19
COM (Serial) Ports ...................................................20
Graphics Interfaces..................................................21
RJ45 LAN Ports........................................................22
Audio ......................................................................22
USB Ports................................................................23
I/O Connectors ............................................................24
SATA (Serial ATA) Connectors...................................24
Digital I/O Connector...............................................24
Cooling Fan Connectors............................................25
Power Connectors....................................................25
Chassis Intrusion Connector .....................................26
Front Panel Connector .............................................26
LAN LED Connector .................................................27
S/PDIF Connector ....................................................27
SMBus Connector ....................................................28
Standby Power LED .................................................28
LPC Connector.........................................................29
Expansion Slots .......................................................30
Battery....................................................................30
Chapter 3 - BIOS Setup ....................................................31
Overview .....................................................................31
Main ............................................................................32
Advanced.....................................................................33
RC ACPI Settings .....................................................33
CPU Configuration....................................................34
Power & Performance ..............................................35
PCH-FW Configuration..............................................35
Trusted Computing ..................................................38
NCT6116D Super IO Configuration ...........................38
NCT6116D HW Monitor............................................39
Serial Port Console Redirection .................................41
USB Configuration....................................................42
CSMConfiguration ....................................................42
USB Power Control ..................................................43
Network Stack Configuration ....................................44
Chipset ........................................................................44
Security .......................................................................48
Boot ............................................................................49
Save & Exit..................................................................49
Updating the BIOS .......................................................50
Notice: BIOS SPI ROM..................................................50
Chapter 4 - RAID..............................................................51
Chapter 5 - Intel AMT Settings ..........................................53
Chapter 6 - Supported Software ........................................67
Table of Contents

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CS331-C246/Q370
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Warranty
1. Warranty does not cover damages or failures that arised from misuse of the product, in-
ability to use the product, unauthorized replacement or alteration of components and prod-
uct specifications.
2. The warranty is void if the product has been subjected to physical abuse, improper instal-
lation, 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 service
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, contacts
or connections.
5. Avoid touching the pins or contacts on all modules and connectors. Hold modules or con-
nectors 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 system chassis cover for installation or servic-
ing. 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.

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CS331-C246/Q370
5
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 CS331-C246/Q370 motherboard
• One COM port cable (With Bracket, Length: 300mm, 2 x COM ports)
• One Serial ATA data cable (With LOCK, Length: 500mm)
• One I/O shield
• One DVD
The board and accessories in the package may not come similar to the information listed
above. This may differ in accordance to the sales region or models in which it was sold. For
more information about the standard package in your region, please contact your dealer or
sales representative.
Optional Items
• USB 2.0 port cable (Length: 350/398mm)
• USB 3.1 Gen 2 port cable (Length: TBD)
• COM port cable (Length: 300mm, 2 x COM ports)
• Serial ATA data cable (Length: 500mm, With LOCK)
• Thermal solution (For 35W, Height: 37.3mm)
• Thermal solution (For 65W, Height: 72.8mm)
• Thermal solution (For 95W, Height: TBD)
• LPC EXT-RS232 module (4 x RS232 ports)
• LPC EXT-RS485 module (4 x RS485 ports)
The board and accessories in the package may not come similar to the information listed
above. This may differ in accordance to 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
Before using the system board, prepare basic system components.
If you are installing the system board in a new system, you will need at least the following
internal components.
• A CPU
• Memory module
• Storage devices such as hard disk drive, etc.
You will also need external system peripherals you intend to use which will normally include at
least a keyboard, a mouse and a video display monitor.

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CS331-C246/Q370
Chapter 1 - Introduction
6
Chapter 1 - Introduction
►Specifications
SYSTEM Processor CS331-C246:
Intel
®
Xeon
®
E-2176G/2124G Processors, LGA 1151 Socket, TDP up to 80W
8th Generation Intel
®
Core
TM
/Pentium
®
/Celeron
®
Processors, LGA 1151 Socket,
TDP up to 95W
CS331-Q370:
8th Generation Intel®CoreTM/Pentium®/Celeron®Processors, LGA 1151
Socket, TDP up to 95W
Chipset CS331-C246: Intel®C246 Chipset
CS331-Q370: Intel®Q370 Chipset
Memory CS331-C246:
Four 288-pin DIMM up to 64GB
Dual Channel DDR4 2400/2666 MHz (ECC/non ECC support)
CS331-Q370:
Four 288-pin DIMM up to 64GB
Dual Channel DDR4 2400/2666 MHz (non ECC support)
BIOS AMI SPI 128Mbit
GRAPHICS Controller Intel®HD Gen 9 Graphics
Feature OpenGL 5.0, DirectX 12, OpenCL 2.1
HW Decode: AVC/H.264, MPEG2, VC1/WMV9, JPEG/MJPEG, HEVC/H265, VP8,
VP9
HW Encode: MPEG2, AVC/H264, JPEG, HEVC/H265, VP8, VP9
Display 1 x HDMI
1 x DVI-I (DVI-D signal)
1 x DP++
HDMI 1.2: resolution up to 1920x1200 @ 60Hz
HDMI 2.0a: resolution up to 4096x2160 @ 60Hz (opt., MOQ required)
DVI-D: resolution up to 1920x1200 @ 60Hz
DP++: resolution up to 4096x2106 @ 60Hz
Triple
Displays
HDMI + DVI-D + DP++
EXPANSION Interface 2 x PCIe x16 (Gen 3) (1 x16 signals or 2 x8 signals)
2 x PCIe x4 (Gen 3)
1 x mini PCIe (PCIe/mSATA/USB2.0)
1 x M.2 2242/2260/2280 M key (PCIe Gen3 x 4 NVMe)
AUDIO
Audio Codec
Realtek ALC888
ETHERNET Controller CS331-C246:
1 x Intel®I211AT PCIe (10/100/1000Mbps)
1 x Intel®I219LM PCIe (10/100/1000Mbps) with iAMT 12.0 (only Xeon, Core
i7/i5 support iAMT)
CS331-Q370:
1 x Intel®I211AT PCIe (10/100/1000Mbps)
1 x Intel®I219LM PCIe (10/100/1000Mbps) with iAMT 12.0 (only Core i7/i5
supports iAMT)
REAR I/O Ethernet 2 x GbE (RJ-45)
USB 2 x USB 3.1 Gen 2
2 x USB 3.1 Gen 1
2 x USB 2.0
REAR I/O Serial 1 x RS-232/422/485 (RS-232 with power) (DB-9)
PS/2 1 x PS/2 (mini-DIN-6)
Display 1 x HDMI
1 x DVI-I (DVI-D signal)
1 x DP++
Audio 1 x Line-out
1 x Line-in (colay, opt., MOQ required)
1 x Mic-in
INTERNAL I/O Serial 1 x RS-232/422/485 (RS-232 with power) (2.54mm pitch)
2 x RS-232 (2.54mm pitch)
USB 2 x USB 3.1 Gen 2
4 x USB 2.0 (2.54mm pitch) (1 x USB 2.0 colay vertical Type A) (opt.,
MOQ required)
Audio 1 x S/PDIF
1 x Front Audio Header
SATA CS331-C246:
6 x SATA 3.0 (up to 6Gb/s)
RAID 0/1/5/10
CS331-Q370:
5 x SATA 3.0 (up to 6Gb/s)
RAID 0/1/5/10
DIO 1 x 8-bit DIO
LPC 1 x LPC (supports LPC EXT-RS-232/485 module)
SMBus 1 x SMBus
WATCHDOG
TIMER Output &
Interval
System Reset, Programmable via Software from 1 to 255
sec/min
SECURITY TPM Infineon TPM 1.2/2.0 (opt., MOQ required)
POWER Type ATX
Connector 8-pin ATX 12V power
24-pin ATX power
RTC Battery CR2032 Coin Cell
OS SUPPORT Windows 10 IoT Enterprise 64-bit
ENVIRONMENT Temperature Operating: 0 to 60°C
Storage: -30 to 60°C with RTC Battery; -40 to 85°C with-
out RTC Battery
Humidity Operating: 5 to 90% RH
Storage: 5 to 90% RH
MECHANICAL Dimensions microATX Form Factor
244mm (9.6") x 244mm (9.6")

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CS331-C246/Q370
Chapter 1 - Introduction
7
►Features
Watchdog Timer
The Watchdog Timer function allows your application to regularly “clear” the system at the set
time interval. If the system hangs or fails to function, it will reset at the set time interval so
that your system will continue to operate.
DDR4
DDR4 delivers increased system bandwidth and improves performance at a lower power than
DDR3/DDR2.
Graphics
The integrated Intel®HD graphics engine delivers an excellent blend of graphics performance
and features to meet business needs. It provides excellent video and 3D graphics with out-
standing graphics responsiveness. These enhancements deliver the performance and compat-
ibility needed for today’s and tomorrow’s business applications. Supports 1 x HDMI, 1 x DVI-I
(DVI-D signal) and 1 x DP++ interfaces for triple display outputs.
PCI Express
PCI Express is a high bandwidth I/O infrastructure that possesses the ability to scale speeds
by forming multiple lanes. The PCI Express architecture also supports high performance graph-
ics infrastructure by enhancing the capability of a PCIe x16 Gen 3 at 16GB/s bandwidth.
Serial ATA
Serial ATA is a storage interface that is compliant with SATA 1.0a specification. With speed of
up to 6Gb/s (SATA 3.0), it improves hard drive performance faster than the standard parallel
ATA whose data transfer rate is 100MB/s.
Gigabit LAN
Intel®I211AT PCIe and Intel®I219LM PCIe with iAMT12.0 (only Xeon, Core i7/i5 supports
iAMT) Gigabit LAN controllers support up to 1Gbps data transmission.
Audio
The Realtek ALC888S-VD2-GR audio codec provides 5.1-channel High Definition audio output.
Wake-On-USB
This function allows you to use a USB keyboard or USB mouse to wake up a system from the
S3 (STR - Suspend To RAM) state.
RTC Timer
The RTC installed on the system board allows your system to automatically power-on on the
set date and time.
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.
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.
Important:
The 5V_standby power source of your power supply must support ≥720mA.
Important:
The 5V_standby power source of your power supply must support ≥720mA.
Important:
If you are using the Wake-On-USB Keyboard/Mouse function for 2 USB ports, the
5V_standby power source of your power supply must support ≥1.5A. For 3 or
more USB ports, the 5V_standby power source of your power supply must support
≥2A.

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CS331-C246/Q370
Chapter 1 - Introduction
8
Power Failure Recovery
When power returns after an AC power failure, you may choose to either power-on the system
manually or let the system power-on automatically.
USB
The system board supports the new USB 3.1 Gen 2. It is capable of running at a maximum
transmission speed of up to 10 Gbit/s (1.2 GB/s) and is faster than USB 3.1 Gen 1 (5 Gbit/s,
or 625 MB/s), USB 2.0 (480 Mbit/s, or 60 MB/s) and USB 1.1 (12Mb/s). USB 3.1 reduces the
time required for data transmission, reduces power consumption, and is backward compatible
with USB 2.0. It is a marked improvement in device transfer speeds between your computer
and a wide range of simultaneously accessible external Plug and Play peripherals.

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CS331-C246/Q370
Chapter 2 - Hardware Installation
9
Chapter 2 - Hardware Installation
►Board Layout
2
2
G2
I C
Battery
►System Memory
DDR4_3
2
2
G2
M.2 M Key
PCIe 4 (PCIe x4)
Standby
Power
LED
ATX Power
1
12 24
13
2 1
13
14
LPC
TPM
(optional)
Chassis
Intrusion
1
System Fan 1
1
1 2
11
Front Panel
1 2
LAN LED
78
1
5
2
SMBus
SPI
Flash
BIOS
PCIe 2 (PCIe x16)
Intel I211AT
1
Clear CMOS (JP5)
C246/Q370
Intel
PCIe 3 (PCIe x4)
DDR4_1 DDR4_3
DDR4_4DDR4_2
PCIe 1 (PCIe x16)
CPU Fan
1
+12V
Power
4
3
Mini PCIe
Nuvoton
NCT6116D
1
USB 2.0
1
DIO
19
2
1
1
S/PDIF
Realtek
ALC888S
Front
Audio
21
910
I C
PS/2 KB/MS
USB 5-6
USB 2.0
COM 1
HDMI
Line-in (opt.)
Line-out
Mic-in
LAN 1
USB 1-2
USB 3.1 Gen 1
USB 9-10
or Optional
Vertical USB 9
210
1
9
1
9
19
COM 2
2
COM 3
2
COM 4
2
1
1
1
SATA 2
SATA 1
SATA 0
SATA 3.0
COM 2
RS232/Power
Select (JP7)
SATA 6
(CS331-C246 only)
SATA 5
SATA 3.0
1
Battery
Battery
Intel I219LM
Buzzer
6
51
COM 1
RS232/422/485
Select (JP2)
2
COM 1 RS232/Power
Select (JP4)
COM 1 RS232/422/485
Select (JP3)
6
5
2
1
6
5
2
1
6
5
2
1
6
5
2
1
(JP10)(JP6)(JP8)
COM 2
RS232/422/485
Select
4
8
1
5
System
Fan 2
SATA 3
COM 1
RS232/422/485
Select (JP1)
1
USB 3.1 1-2
Power Select (JP15)
USB 3.1 3-4 Power Select (JP16)
1
Mini PCIe/mSATA Signal Select
(JP9)
USB 2.0 7-8
Power Select
(JP17)
1
USB 2.0 9-10 Power Select (JP18)
1
11
USB 2.0 5-6 Power Select (JP21)
(JP20)
(JP21)
PS/2 Power Select (JP20)
1 10
1120
USB 5-6
1USB 3.1 5-6
Power Select (JP19)
USB 3.1 Gen 2
1
11
10 2
1
1
System
Fan 3
62 62
51 51
62
51
USB 7-8
DVI-I
(DVI-D signal)
DP++
LAN 2
USB 3-4
USB 3.1 Gen 2
LGA 1151 Socket
Standby Power
LED
DDR4_1
DDR4_2
DDR4_4
Important:
Electrostatic discharge (ESD) can damage your board, pro-
cessor, disk drives, add-in boards, and other components.
Perform installation procedures at an ESD workstation
only. If such a station is not available, you can provide
some ESD protection by wearing an antistatic wrist strap
and attaching it to a metal part of the system chassis. If
a wrist strap is unavailable, establish and maintain contact
with the system chassis throughout any procedures requir-
ing ESD protection.
Important:
When the Standby Power LED lit red, 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 mother-
board and components.

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CS331-C246/Q370
Chapter 2 - Hardware Installation
10
Features
• Four 288-pin DIMM up to 64GB
• The four DIMM sockets are divided into 2 channels:
Channel A - DDR4_1 and DDR4_2
Channel B - DDR4_3 and DDR4_4
• Dual Channel DDR4 2400/2666 MHz
The system board supports the following memory interface.
Single Channel (SC)
Data will be accessed in chunks of 64 bits from the memory channels.
Dual Channel (DC)
Data will be accessed in chunks of 128 bits from the memory channels. Dual channel provides
better system performance because it doubles the data transfer rate.
Single Channel DIMMs are on the same channel. DIMMs in a channel can be identi-
cal or completely different. However, we highly recommend using
identical DIMMs. Not all slots need to be populated.
Dual Channel DIMMs of the same memory configuration are on different channels.
Installing the DIMM Module
Before installing the memory module, please make sure that the following safety cautions are
well-attended.
1. Make sure the PC and all other peripheral devices connected to it has been powered
down.
2. Disconnect all power cords and cables.
3. Locate the DIMM socket on the system board
4. Make sure the notch on memory card is aligned to the key on the socket.
Socket Side View
Socket Top View
DDR4 DIMM
Notch
Key
Eject TabEject Tab
Step 3
Step 2
Step 1 Step 1
Step 2
Step 3
►System Memory