DFI CS631-C246 User manual

CS631-C246/Q370
ATX Industrial Motherboard
User’s Manual
A51110951
Preliminary
Version
Preliminary
Version

2User's Manual | CS631
Copyright
This publication contains information that is protected by copyright. No part of it may be repro-
duced in any form or by any means or used to make any transformation/adaptation without the
prior written permission from the copyright holders.
This publication is provided for informational purposes only. The manufacturer makes no
representations or warranties with respect to the contents or use of this manual and specifi-
cally disclaims any express or implied warranties of merchantability or fitness for any particular
purpose. The user will assume the entire risk of the use or the results of the use of this docu-
ment. Further, the manufacturer reserves the right to revise this publication and make changes
to its contents at any time, without obligation to notify any person or entity of such revisions or
changes.
Changes after the publication’s first release will be based on the product’s revision. The website
will always provide the most updated information.
© 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 re-
ceiver is connected.
• Consult the dealer or an experienced radio TV technician for help.
Notice:
1. The changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
2. Shielded interface cables must be used in order to comply with the emission limits.

3User's Manual | CS631
Table of Contents
Chapter 1 - Introduction.................................................................................................................................................6
Specifications..............................................................................................................................................................6
CS631-C246 ........................................................................................................................................................6
CS631-Q370........................................................................................................................................................7
Features ........................................................................................................................................................................8
DDR4 .....................................................................................................................................................................8
Chapter 2 - Hardware Installation...............................................................................................................................8
Board Layout...............................................................................................................................................................8
Standby Power LED..................................................................................................................................................8
System Memory.........................................................................................................................................................9
Installing the DIMM Module ........................................................................................................................9
Removing the DIMM Module ...................................................................................................................10
CPU..............................................................................................................................................................................11
Installing the CPU..........................................................................................................................................11
Installing the Fan and Heat Sink..............................................................................................................13
Jumper Settings......................................................................................................................................................14
Clear CMOS......................................................................................................................................................14
COM 1 Serial Mode.......................................................................................................................................14
COM 2 Serial Mode.......................................................................................................................................15
COM1 & COM2 RS232 Power Select.......................................................................................................15
Digital I/O (DIO) Power Select ..................................................................................................................16
Digital I/O (DIO) Power Supply.................................................................................................................16
Mini PCIe 2 Signal Select ............................................................................................................................17
mSATA (Mini PCIe 2 connector) / 7-pin SATA (SATA4) Switch ......................................................17
Mini PCIe 2 Power Select............................................................................................................................18
Rear I/O Ports...........................................................................................................................................................15
PS/2 Keyboard/Mouse.................................................................................................................................15
USB Ports ..........................................................................................................................................................16
Graphics Display ............................................................................................................................................16
RJ45 LAN...........................................................................................................................................................17
Audio..................................................................................................................................................................17
COM 1 (Serial) Port........................................................................................................................................18
Internal I/O Connectors.......................................................................................................................................19
COM (Serial) Port ...........................................................................................................................................19
USB Ports ..........................................................................................................................................................20
Front Audio......................................................................................................................................................21
SATA (Serial ATA)............................................................................................................................................21
Digital I/O .........................................................................................................................................................22
Cooling Fan Connectors .............................................................................................................................22
Power Connector...........................................................................................................................................23
Chassis Intrusion............................................................................................................................................23
Front Panel.......................................................................................................................................................24
S/PDIF.................................................................................................................................................................24
Battery ...............................................................................................................................................................25
SMBus ................................................................................................................................................................25
LAN LED ............................................................................................................................................................26
Expansion Slots ..............................................................................................................................................26
Installing the M.2 Module ..........................................................................................................................27
Installing the Mini PCIe Module ..............................................................................................................28
LPC ......................................................................................................................................................................29
External COM port Module........................................................................................................................29
Chapter 3 - BIOS Settings............................................................................................................................................30
Overview ..................................................................................................................................................................30
Main ............................................................................................................................................................................30
Advanced .................................................................................................................................................................30
RC ACPI Configuration.................................................................................................................................31
CPU Configuration ........................................................................................................................................31
Power & Performance ..................................................................................................................................32
PCH-FW Configuration ................................................................................................................................32
Trusted Computing.......................................................................................................................................35
NCT6116D Super IO Configuration ........................................................................................................35
NCT6116D HW Monitor ..............................................................................................................................36
Serial Port Console Redirection ...............................................................................................................37
USB Configuration.........................................................................................................................................38
Network Stack Configuration....................................................................................................................39
CSM Configuration........................................................................................................................................39
Chipset.......................................................................................................................................................................40
Graphics Configuration...............................................................................................................................40
PEG Port Configuration...............................................................................................................................41
PCH-IO Configuration ..................................................................................................................................41
SATA And RST Configuration.....................................................................................................................42
PCI Express Configuration..........................................................................................................................42
HD Audio Configuration.............................................................................................................................43
Security ......................................................................................................................................................................44
Secure Boot......................................................................................................................................................44
Boot............................................................................................................................................................................. 46
Save & Exit ................................................................................................................................................................46
Updating the BIOS.................................................................................................................................................47
Notice: BIOS SPI ROM ...........................................................................................................................................47
Chapter 4 - Intel AMT Settings..................................................................................................................................48
Overview ..................................................................................................................................................................48
Enable Intel®AMT in the AMI BIOS..................................................................................................................48
Entering Management Engine BIOS Extension (MEBX)...........................................................................49
MEBX...........................................................................................................................................................................50
Main Menu.......................................................................................................................................................50
Intel(R) ME General Settings .....................................................................................................................50
Intel(R) AMT Configuration........................................................................................................................52
Chapter 5 - RAID .............................................................................................................................................................63
RAID Levels...............................................................................................................................................................63
Setup Procedure.....................................................................................................................................................63
Chapter 6 - Supported Software ..............................................................................................................................65
Auto-run Menu .......................................................................................................................................................65
Intel Chipset Software Installation Utility.....................................................................................................65
Intel HD Graphics Drivers ..................................................................................................................................66
Realtek Audio Drivers...........................................................................................................................................67
Intel LAN Driver .....................................................................................................................................................68
Intel ME Drivers.......................................................................................................................................................69
Intel Serial IO Drivers............................................................................................................................................70
Intel Rapid Storage Technology ......................................................................................................................71
Adobe Acrobat Reader 9.3 .................................................................................................................................73

4User's Manual | CS631
About this Manual
This manual can be downloaded from the website, or acquired as an electronic file included in
the optional CD/DVD. The manual is subject to change and update without notice, and may be
based on editions that do not resemble your actual products. Please visit our website or con-
tact our sales representatives for the latest editions.
Warranty
1. Warranty does not cover damages or failures that arised from misuse of the product,
inability to use the product, unauthorized replacement or alteration of components and
product specifications.
2. The warranty is void if the product has been subjected to physical abuse, improper in-
stallation, modification, accidents or unauthorized repair of the product.
3. Unless otherwise instructed in this user’s manual, the user may not, under any circum-
stances, attempt to perform service, adjustments or repairs on the product, whether in
or out of warranty. It must be returned to the purchase point, factory or authorized ser-
vice agency for all such work.
4. We will not be liable for any indirect, special, incidental or consequencial damages to
the product that has been modified or altered.
Static Electricity Precautions
It is quite easy to inadvertently damage your PC, system board, components or devices even
before installing them in your system unit. Static electrical discharge can damage computer
components without causing any signs of physical damage. You must take extra care in han-
dling them to ensure against electrostatic build-up.
1. To prevent electrostatic build-up, leave the system board in its anti-static bag until you
are ready to install it.
2. Wear an antistatic wrist strap.
3. Do all preparation work on a static-free surface.
4. Hold the device only by its edges. Be careful not to touch any of the components, con-
tacts or connections.
5. Avoid touching the pins or contacts on all modules and connectors. Hold modules or
connectors by their ends.
Safety Measures
• To avoid damage to the system, use the correct AC input voltage range.
• To reduce the risk of electric shock, unplug the power cord before removing the sys-
tem chassis cover for installation or servicing. After installation or servicing, cover the
system chassis before plugging the power cord.
Important:
Electrostatic discharge (ESD) can damage your processor, disk drive and other
components. Perform the upgrade instruction procedures described at an ESD
workstation only. If such a station is not available, you can provide some ESD pro-
tection by wearing an antistatic wrist strap and attaching it to a metal part of the
system chassis. If a wrist strap is unavailable, establish and maintain contact with
the system chassis throughout any procedures requiring ESD protection.

5User's Manual | CS631
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 CS631-C246/CS631-Q370 board
• One COM port cable (Length: 300mm, 2 x DB9 ports)
• One Serial ATA data cable (Length: 500mm)
• One I/O shield
• One standoff for M.2/Mini PCIe
• Three standoff screws (M2x4 mm I-head)
• One Quick Reference
The board and accessories in the package may not come similar to the information listed
above. This may differ in accordance with the sales region or models in which it was sold. For
more information about the standard package in your region, please contact your dealer or
sales representative.
Optional Items
• USB 2.0 / USB 3.1 cable
• COM cable
• SATA cable
• Thernal Solution (Heat sink and fan)
• EXT-RS232 / EXT-RS485 module (4 external ports via LPC connector)
• DP-to-HDMI dongle
The board and accessories in the package may not come similar to the information listed
above. This may differ in accordance with the sales region or models in which it was sold. For
more information about the standard package in your region, please contact your dealer or
sales representative.
Before Using the System Board
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 inter-
nal components.
• CPU
• Memory module
• Storage device such as hard disk drive, CD-ROM, 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.

6User's Manual | CS631
Chapter 1
INTRODUCTION
Chapter 1 - Introduction
XSpecifications
CS631-C246
SYSTEM Processor 8th Generation Intel® CoreTM/Pentium®/Celeron®Processors, LGA 1151
Socket, TDP up to 95W
9th Generation Intel®LGA 1151 Socket Processors:
- Intel®Xeon®E-2278GEL (8 Cores, 16M Cache, up to 3.9 GHz); 35W
- Intel®Xeon®E-2226GE (6 Cores, 12M Cache, up to 4.6 GHz); 80W
- Intel®Core™ i7-9700TE (8 Cores, 12M Cache, up to 3.8 GHz); 35W
- Intel®Core™ i5-9500E (6 Cores, 9M Cache, up to 4.2 GHz); 65W
- Intel®Core™ i5-9500TE (6 Cores, 9M Cache, up to 3.6 GHz); 35W
- Intel®Core™ i3-9100E (4 Cores, 6M Cache, 3.7 GHz); 65W
- Intel®Core™ i3-9100TE (4 Cores, 6M Cache, to 3.2 GHz); 35W
Chipset Intel®C246 Chipset
Memory - Four 288-pin ECC/Non-ECC DIMM up to 64GB (Core™ i5/i7 only support
non-ECC)
- Dual Channel DDR4 2400/2666MHz
- Intel®Optane™ Memory (M.2 M module)
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 VGA, resolution up to 1920x1200 @ 60Hz
2 x DP++, resolution up to 4096x2160 @ 60Hz
Triple Displays VGA + DP++ + DP++
EXPANSION Interface 2 x PCIe x16 (Gen 3) (1 x16 signal or 2 x8 signals)
3 x PCIe x4 (Gen 3)
1 x PCIe x1 (Gen 3)
1 x PCI
2 x Full-sized Mini PCIe (1* PCIe/SATA/USB2.0, 1* PCIe/USB2.0)
1 x M.2 2242/2260/2280 M key (PCIe Gen3 x 2 NVMe)
AUDIO Audio Codec Realtek ALC888
ETHERNET Controller 1 x Intel®I211AT PCIe (10/100/1000Mbps)
1 x Intel®I219LM PCIe with iAMT12.0 (10/100/1000Mbps) (only Xeon,
Core i7/i5 supports iAMT)
REAR I/O Ethernet 2 x GbE (RJ-45)
USB 2 x USB 3.1 Gen2
2 x USB 3.1 Gen1
2 x USB 2.0
Serial 1 x RS-232/422/485 (RS-232 w/ power) (DB-9)
PS/2 1 x PS/2 (mini-DIN-6)
Display 1 x VGA, 2 x DP++
Audio 1 x Line-out, 1 x Mic-in, 1 x Line-in (opt., MOQ required)
INTERNAL I/O Serial 1 x RS-232/422/485 (RS-232 w/ power) (2.54mm pitch)
4 x RS-232 (2.54mm pitch)
USB 2 x USB 3.1 Gen 1 (2.00mm pitch)
4 x USB 2.0 (2.54mm pitch) (1 x USB 2.0 colay vertical Type A) (opt., MOQ
required)
Audio 1 x Front Audio Header
1 x S/PDIF
SATA 5 x SATA 3.0 (up to 6Gb/s, 1 SATA shared with Mini PCIe (mSATA), default
at Mini PCIe)
RAID 0/1/5/10
DIO 1 x 8-bit DIO
LPC 1 x LPC (supports LPC EXT-RS232/RS485 module)
SMBus 1 x SMBus
WATCHDOG
TIMER
Output &
Interval
System Reset, Programmable via Software from 1 to 255 Seconds
SECURITY TPM Infineon TPM1.2/2.0 (opt., MOQ required)
POWER Type ATX
Connector 8-pin ATX 12V power
24-pin ATX power
Consumption TBD
RTC Battery CR2032 Coin Cell
OS SUPPORT Windows 10 IoT Enterprise 64-bit
Linux
ENVIRONMENT Temperature Operating: 0 to 60°C
Storage: -30 to 60°C with RTC Battery; -40 to 85°C without RTC Battery
Humidity Operating: 5 to 90% RH;
Storage: 5 to 90% RH
MTBF TBD
MECHANICAL Dimensions ATX Form Factor: 305mm (12") x 244mm (9.6")
Height PCB: 1.6mm
CERTIFICATIONS CE, FCC Class B, RoHS

7User's Manual | CS631
Chapter 1
INTRODUCTION
XSpecifications
CS631-Q370
SYSTEM Processor 8th Generation Intel®CoreTM/Pentium®/Celeron®Processors, LGA 1151
Socket, TDP up to 95W
9th Generation Intel®LGA 1151 Socket Processors
- Intel®Core™ i7-9700TE (8 Cores, 12M Cache, up to 3.8 GHz); 35W
- Intel®Core™ i5-9500E (6 Cores, 9M Cache, up to 4.2 GHz); 65W
- Intel®Core™ i5-9500TE (6 Cores, 9M Cache, up to 3.6 GHz); 35W
- Intel®Core™ i3-9100E (4 Cores, 6M Cache, 3.7 GHz); 65W
- Intel®Core™ i3-9100TE (4 Cores, 6M Cache, to 3.2 GHz); 35W
Chipset Intel®Q370 Chipset
Memory - Four 288-pin DIMM up to 64GB
- Dual Channel DDR4 2400/2666MHz
- Intel®Optane™ Memory (M.2 M module)
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 VGA
2 x DP++
VGA: resolution up to 1920x1200 @ 60Hz
DP++: resolution up to 4096x2160 @ 60Hz
Triple Displays VGA + DP++ + DP++
EXPANSION Interface 2 x PCIe x16 (Gen 3) (1 x16 signal or 2 x8 signals)
3 x PCIe x4 (Gen 3)
1 x PCIe x1 (Gen 3)
1 x PCI
2 x Full-sized Mini PCIe (1* PCIe/SATA/USB2.0, 1* PCIe/USB2.0)
1 x M.2 2242/2260/2280 M key (PCIe Gen3 x 2 NVMe)
AUDIO Audio Codec Realtek ALC888
ETHERNET Controller 1 x Intel®I211AT PCIe (10/100/1000Mbps)
1 x Intel®I219LM PCIe with iAMT12.0 (10/100/1000Mbps) (only Core i7/
i5 supports iAMT)
REAR I/O Ethernet 2 x GbE (RJ-45)
USB 2 x USB 3.1 Gen2
2 x USB 3.1 Gen1
2 x USB 2.0
Serial 1 x RS-232/422/485 (RS-232 w/ power) (DB-9)
PS/2 1 x PS/2 (mini-DIN-6)
Display 1 x VGA
2 x DP++
Audio 1 x Line-out, 1 x Mic-in, 1 x Line-in (opt., MOQ required)
INTERNAL I/O Serial 1 x RS-232/422/485 (RS-232 w/ power) (2.54mm pitch)
4 x RS-232 (2.54mm pitch)
USB 2 x USB 3.1 Gen 1 (2.00mm pitch)
4 x USB 2.0 (2.54mm pitch) (1 x USB 2.0 colay vertical Type A) (opt., MOQ
required)
Audio 1 x Front Audio Header
1 x S/PDIF
SATA 5 x SATA 3.0 (up to 6Gb/s, 1 SATA shared with mini PCIe (SATA), default
at mini PCIe)
RAID 0/1/5/10
DIO 1 x 8-bit DIO
LPC 1 x LPC (supports LPC EXT-RS232/RS485 module)
SMBus 1 x SMBus
WATCHDOG
TIMER
Output &
Interval
System Reset, Programmable via Software from 1 to 255 Seconds
SECURITY TPM Infineon TPM1.2/2.0 (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
Linux
ENVIRONMENT Temperature Operating: 0 to 60°C
Storage: -30 to 60°C with RTC Battery; -40 to 85°C without RTC Battery
Humidity Operating: 5 to 90% RH
Storage: 5 to 90% RH
MECHANICAL Dimensions ATX Form Factor: 305mm (12") x 244mm (9.6")
Height PCB: 1.6mm
CERTIFICATIONS CE, FCC Class B, RoHS

8User's Manual | CS631
Chapter 1
INTRODUCTION
XFeatures
Watchdog Timer
The Watchdog Timer function allows your application to regularly “clear” the system at the set
time interval. If the system hangs or fails to function, it will reset at the set time interval so that
your system will continue to operate.
DDR4
DDR4 delivers increased system bandwidth and improves performance. The advantages of
DDR4 provide an extended battery life and improve the performance at a lower power than
DDR3/DDR2.
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.
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
The Intel® I219LM and Intel® I210AT Gigabit Ethernet Controllers support data transmission
at 1Gbps. Two additional GbE ports powered by Realtek 8365MB serve as hubs for Layer 2
switching.
Audio
The Realtek ALC888S-VD2-GR audio codec provides 5.1 channel High Definition audio output.
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.
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.
PCI Express
PCI Express is a high bandwidth I/O infrastructure that possesses the ability to scale speeds
by forming multiple lanes. The x4 PCI Express lane supports transfer rate of 4 Gigabyte per
second (2 directions). The PCI Express architecture also supports high performance graphics
infrastructure by enhancing the capability of a PCIe x16 Gen 3 at 16GB/s bandwidth (8GB/s in
each direction).
ACPI STR
The system board is designed to meet the ACPI (Advanced Configuration and Power Interface)
specification. ACPI has energy saving features that enables PCs to implement Power Manage-
ment and Plug-and-Play with operating systems that support OS Direct Power Management.
ACPI when enabled in the Power Management Setup will allow you to use the Suspend to RAM
function.
With the Suspend to RAM function enabled, you can power-off the system at once by pressing
the power button or selecting “Standby” when you shut down Windows®without having to go
through the sometimes tiresome process of closing files, applications and operating system.
This is because the system is capable of storing all programs and data files during the entire
operating session into RAM (Random Access Memory) when it powers-off. The operating ses-
sion will resume exactly where you left off the next time you power-on the system.
Power Failure Recovery
When power returns after an AC power failure, you may choose to either power-on the system
manually or let the system power-on automatically.
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.
RTC Timer
The Real Time Clock (RTC) installed on the system board allows your system to automatically
power-on on the set date and time.

8User's Manual | CS631
Chapter 2
HARDWARE INSTALLATION
Chapter 2 - Hardware Installation
XBoard Layout
CPU
FAN
1
1
System Fan 1 DDR4_1
DDR4_2
DDR4_3
DDR4_4
JP5 1
Battery
PCIe 2 (PCIe 1x signal, PCIe x4 socket)
PCIe 4 (PCIe x4)
PCIe 5 (PCIe x4)
PCIe 6 (PCIe x4)
PCI 1
PCIe 1 (PCIe x16)
PCIe 3 (PCIe x16)
19
2
19
2
19
2
COM4 COM5COM2 COM3
1
210
1
210
USB
9/10
USB 2.0
USB
11/12 Note
Digital
I/O
LAN
LED
JP7
1
System
Fan 2
5
1
6
2
1
220
19
19
2
COM6
19
2
1
2
7
8
1
1
1 1 1
JP18
JP19
JP17
JP21
(left to right)
1
1
1
1
1
SATA1 (left)
SATA2 (right)
SATA3 (left)
SATA4 (right)
1
System
Fan 3
1
S/PDIF
1
6
5
2
1
6
5
2
1
6
5
2
1
JP8
JP10 JP6
Chassis
Intrusion
Mini PCIe 2
JP22
Mini PCIe 1
12
11
Front Panel
15
2
SMBus SATA0
SPI
Flash
BIOS
1
JP23
Buzzer
USB 5/6
(USB 3.1 Gen 1)
1
1011
20
113
12 24
ATX Power
Standby
Power
LED
LPC
14
2
13
1
Socket LGA1151
+12V Power
1
5
6
5
1
6
5
2
1
2
JP3
JP4JP1
6
5
1
6
5
2
1
2
JP2
Line-in (opt.)
Line-out
Mic-in
VGA
COM 1
DP++ 1
DP++ 2
LAN 1
USB 3.1 Gen 1
(USB 1/2)
LAN 2
USB 3.1 Gen 2
(USB 3/4)
USB 2.0
(USB 7/8)
PS/2 KB/MS
Intel
C246/Q370
2
9
10
1
Front Audio
M.2 M Key
TPM 2.0 (optional)
Important:
Electrostatic discharge (ESD) can damage your board, processor, disk
drives, add-in boards, and other components. Perform installation proce-
dures 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 requiring ESD protection.
Note:
The USB 11/12 ports can either be a 10-pin header or a vertical Type A
connector.
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
motherboard and components.
XStandby Power LED
Standby Power LED

9User's Manual | CS631
Chapter 2
HARDWARE INSTALLATION
• CS631-C246: Four 288-pin ECC/Non-ECC DIMM up to 64GB
• CS631-Q370: Four 288-pin DIMM up to 64GB
• Dual Channel DDR4 2400/2666 MHz
XSystem Memory
Features
The system board supports the following memory interface.
Single Channel (SC)
Data will be accessed in chunks of 64 bits from the memory channels.
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.
DDR4_1
DDR4_3
DDR4_2
DDR4_4
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
Socket Side View
Socket Top View
DDR4 SO-DIMM
Key
Eject TabEject Tab
Step 3
Step 2
Step 1
Step 1
Step 2
Step 3
Notch
Retention Notch
XSystem Memory
Installing the DIMM Module