DFI KB968 User manual

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KB968
COM Express Compact Module
User’s Manual
A28710428

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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 website
will always provide the most updated information.
© 2014. 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.
COM Express Specification Reference
PICMG®COM Express ModuleTM Base Specification.
http://www.picmg.org/
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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Table of Contents
Copyright.............................................................................................................2
Trademarks........................................................................................................2
FCC and DOC Statement on Class B.....................................................2
About this Manual..........................................................................................4
Warranty ............................................................................................................4
Static Electricity Precautions......................................................................4
Safety Measures..............................................................................................4
About the Package.........................................................................................5
Chapter 1 - Introduction.............................................................................6
Specifications ................................................................................................6
Features ........................................................................................................7
Chapter 2 - Concept.......................................................................8
COM Express Module Standards..............................................................8
Specification Comparison Table ...............................................................9
Chapter 3 - Hardware Installation.............................................. 10
Board Layout...............................................................................................10
Block Diagram.............................................................................................10
Mechanical Diagram..................................................................................11
System Memory..........................................................................................12
Installing the DIMM Module ........................................................................13
Connectors...................................................................................................14
CPU Fan Connector.....................................................................................14
COM Express Connectors ............................................................................15
COM Express connector Signal Discription....................................................16
Standby Power LED...................................................................................26
Cooling Option............................................................................................26
Installing KB968 onto a Carrier Board................................................. 27
Installing the COM Express Debug Card.............................................30
Chapter 4 - BIOS Setup............................................................... 33
Overview .....................................................................................................33
AMI BIOS Setup Utility.............................................................................34
Main ..........................................................................................................34
Advanced...................................................................................................34
Chipset ......................................................................................................41
Boot...........................................................................................................47
Security......................................................................................................48
Save & Exit................................................................................................48
Updating the BIOS....................................................................................49
Chapter 5 - Supported Software ..........................................................50
Chapter 6 - GPIO Programming Guide...............................................58
Appendix A - nLite and AHCI Installation Guide...........................59
nLite...............................................................................................................59
AHCI.............................................................................................................. 63
Appendix B - Watchdog Sample Code................................................65
Appendix C - System Error Message...................................................66
Appendix D - Troubleshooting................................................................67

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About this Manual
An electronic file of this manual is included in the CD. To view the user’s manual in the CD,
insert the CD into a CD-ROM drive. The autorun screen (Main Board Utility CD) will appear.
Click “User’s Manual” on the main menu.
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 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 com-
ponents. Perform the upgrade instruction procedures described at an ESD worksta-
tion 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 chas-
sis. If a wrist strap is unavailable, establish and maintain contact with the system
chassis throughout any procedures requiring ESD protection.

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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 KB968 board
• One QR (Quick Reference)
• One DVD
Optional Items
• COM331-B carrier board kit
• COM101-BAT carrier board kit
• Heat spreader with heat sink and fan
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
internal components.
• Memory module
• Storage devices 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.

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Damage Free
Intelligence • Monitors APU temperature
• Monitors APU fan speed
• Monitors APU_VDD/APU_VDDNB/APU_VDDIO_SUS/1V8/0V95 voltages
• Watchdog timer function
BIOS • 32Mbit SPI BIOS
Power
Consumption • 28.58 W with GX420CA at 2.0GHz and 1x 4 GB DDR3 SODIMM
OS Support • Windows 7 Ultimate x86 & SP1 (32-bit)
• Windows 7 Ultimate x64 & SP1 (64-bit)
• Windows 8 Enterprise x86 (32-bit)
• Windows 8 Enterprise x64 (64-bit)
Temperature • Operating: 0oC to 60oC
• Storage: -20oC to 85oC
Humidity • 5% to 90%
Power
Input • 12V, 5VSB, VCC_RTC (ATX mode)
12V, VCC_RTC (AT mode)
PCB • Dimensions
- COM Express®Compact
- 95mm (3.74") x 95mm (3.74")
• Compliance
- PICMG COM Express®R2.1, Type 6
Chapter 1 - Introduction
Specifications
Processor • AMD®Embedded G-Series SoC FT3 BGA
- AMD®GX420CA, Quad Core, 2M Cache, 2.0GHz, 25W
- AMD®GX415GA, Quad Core, 2M Cache, 1.5GHz, 15W
- AMD®GX217GA, Dual Core, 1M Cache, 1.65GHz, 15W
- AMD®GX210HA, Dual Core, 1M Cache, 1.0GHz, 9W
• 28nm process technology
System Memory • One 204-pin DDR3 SODIMM socket
• Supports DDR3 1066/1333/1600MHz (-420C/-415G/-217G)
Supports DDR3 1066/1333MHz (-210H)
• Supports single channel memory interface
• Supports up to 8GB system memory
• DRAM device technologies: 1Gb, 2Gb, 4Gb and 8Gb DDR3 DRAM
technologies are supported for x8 and x16 devices, unbuffered, non-ECC
Graphics • Advanced discrete-level GPU integrated in the processor
• Supports VGA, DP/LVDS and DP interfaces
• VGA: resolution up to 2048x1536 @ 60Hz
• LVDS: 18-bit, single channel, resolution up to 1600x900 @60Hz
• DP: resolution up to 4096x2160 @30Hz
• Supports hardware acceleration for DirectX 11.1, H.264, MPEG-2, MPEG-4
AVC, VC-1 and WMV
Audio • Supports High Definition Audio interface
LAN • Intel®WGI210AT Gigabit Ethernet Controller
• Integrated 10/100/1000 transceiver
• Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Serial ATA • Supports 2 Serial ATA interfaces
• SATA 3.0 with data transfer rate up to 6Gb/s
• Integrated Advanced Host Controller Interface (AHCI) controller
SSD
(optional) • 2GB/4GB/8GB/16GB/32GB/64GB
• Write: 30MB/sec (max), Read: 70MB/sec (max)
• SATA to SSD onboard
Trusted
Platform
Module-TPM
(optional)
• Provides a Trusted PC for secure transactions
• Provides software license protection, enforcement and password protection
Watchdog
Timer • Watchdog timeout programmable via software from 1 to 255 seconds
Expansion
Interfaces • Supports 8 USB 2.0 ports (first 2 USB ports support up to USB 3.0)
• Supports 1 PCIe x4 (GFX)
• Supports 4 PCIe x1 (GPP, GPP3 is connected to onboard LAN by default)
• Supports LPC interface
• Supports I2C interface
• Supports SMBus interface
• Supports 2 serial interfaces (TX/RX)
• Supports 8-bit Digital I/O
Chapter 1

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Chapter 1
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.
• DDR3
DDR3 delivers increased system bandwidth and improved performance. The advantages of
DDR3 are its higher bandwidth and its increase in performance at a lower power than DDR2.
• Graphics
The AMD®Embedded G-Series SoC platform delivers high-performance processing coupled with
a premium high-definition visual experience in a power-efficient solution. Enabling unprec-
edented integrated graphics and multi-display capabilities in embedded applications that can be
compact and low-power. Supports VGA, DP/LVDS and DP interfaces for display outputs.
• 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. The bandwidth of the SATA 3.0 will be limited by
carrier board design.
• Gigabit LAN
The Intel®WGI210AT Gigabit LAN controller supports up to 1Gbps data transmission.
• USB
The system board supports the new USB 3.0. It is capable of running at a maximum transmis-
sion speed of up to 5 Gbit/s (625 MB/s) and is faster than USB 2.0 (480 Mbit/s, or 60 MB/s)
and USB 1.1 (12Mb/s). USB 3.0 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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Chapter 2
Chapter 2 - Concept
106.00
91.00
70.00
51.00
4.00
18.00
6.00
0.00
16.50 4.00 0.00
Extended
BasicCompact
Mini
74.20 80.00 91.00 121.00 151.00
Common for all Form Factors
Extended only
Basic only
Compact only
Compact and Basic only
Mini only
COM Express Module Standards
The figure below shows the dimensions of the different types of COM Express modules.
KB968 is a COM Express Compact module. The dimension is 95mm x 95mm.

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Chapter 2
Specification Comparison Table
Module Pin-out - Required and Optional Features C-D Connector. PICMG®COM.0Revision 2.1
The table below shows the COM Express standard specifications and the corresponding specifications supported on the KB968 module.
• 5 Indicates 12V-tolerant features on former VCC_12V signals.
• 6 Cells in the connected columns spanning rows provide a rough approximation of features
sharing connector pins.
Connector Feature
COM Express Module Base
Specification Type 6
(No IDE or PCI, add DDI+ USB3)
Min
/
Max
DFI KB968
Type 6
A-B
A-B PCI Express Lanes 0 - 5 1 / 6 3 + 1 (optional)
A-B LVDS Channel A 0 / 1 1
A-B LVDS Channel B 0 / 1 0
A-B eDP on LVDS CH A pins 0 / 1 0
A-B VGA Port 0 / 1 1
A-B TV-Out NA NA
A-B DDI 0 NA NA
A-B5Serial Ports 1 - 2 0 / 2 2
A-B CAN interface on SER1 0 / 1 0
A-B SATA / SAS Ports 1 / 4 2
A-B AC’97 / HDA Digital Interface 0 / 1 1
A-B USB 2.0 Ports 4 / 8 8
A-B USB Client 0 / 1 0
A-B USB 3.0 Ports NA NA
A-B LAN Port 0 1 / 1 1
A-B Express Card Support 1 / 2 2
A-B LPC Bus 1 / 1 1
A-B SPI 1 / 2 1
A-B SDIO (muxed on GPIO) 0 / 1 1 (optional)
General Purpose I/O 8 / 8 8
A-B SMBus 1 / 1 1
A-B I2C 1 / 1 1
A-B Watchdog Timer 0 / 1 1
A-B Speaker Out 1 / 1 1
A-B External BIOS ROM Support 0 / 2 1
A-B Reset Functions 1 / 1 1
A-B6
System I/O
System Management
Connector Feature
COM Express Module Base
Specification Type 6
(No IDE or PCI, add DDI+ USB3)
Min
/
Max
DFI KB968
Type 6
A-B
A-B Thermal Protection 0 / 1 1
A-B Battery Low Alarm 0 / 1 1
A-B Suspend/Wake Signals 0 / 3 2
A-B Power Button Support 1 / 1 1
A-B Power Good 1 / 1 1
A-B VCC_5V_SBY Contacts 4 / 4 4
A-B5Sleep Input 0 / 1 1
A-B5Lid Input 0 / 1 1
A-B5Fan Control Signals 0 / 2 2
A-B Trusted Platform Modules 0 / 1 1 (optional)
A-B
A-B VCC_12V Contacts 12 / 12 12
Power Management
Power
Connector Feature
COM Express Module Base
Specification Type 6
(No IDE or PCI, add DDI+ USB3)
Min
/
Max
DFI KB968
Type 6
C-D PCI Express Lanes 16 - 31 0 / 16 4
PCI Express Graphics (PEG) 0 / 1 1
Muxed SDVO Channels 1 - 2 NA NA
PCI Express Lanes 6 - 15 0 / 2 0
PCI Bus - 32 Bit NA NA
PATA Port NA NA
LAN Ports 1 - 2 NA NA
DDIs 1 - 3 0 / 3 1 + 1 (optional)
USB 3.0 Ports 0 / 4 2
C-D
C-D VCC_12V Contacts 12 / 12 12
Power
C-D6
C-D6
System I/O

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Chapter 3
Chapter 3 - Hardware Installation
Board Layout
Top View
Bottom View
Block Diagram
COM Express connector
C1
D1
C110
D110
COM Express connector
A1
B1
A110
B110
TPM
(optional)
ITE
IT8518E
PCIe GEN2 (GFX 1 x4)
CMOS Backup
EEPROM
USB 2.0 8x
SATA 3.0 2x
USB_SS 0,1USB 3.0
SMBus (Optional)
HD Audio
LPC Bus
A / B
HD
Audio
LPC
Bus
LPC
Bus
USB
2
.
0
8x
SATA
30
2x
SATA
3
.
0
2x
Embedded
Controller
IT8518E
8-bit DIO
WDT
I2C Bus/SMBus
AMD Embedded
G-Series SoC
UNBUFFERED
DDR3 SODIMM
PCIe
GEN2
(GFX
1
x4)
TDP1
TDP1
DDI Port 1
USB
_
SS
0,1
USB
3.0
LPC
TPM 1.2
SLB9635
(Optional)
Serial Port1,
2 Tx/Rx
Sys Fan
PWM/TACH
8bit
DIO
I
2
2
C Bus/SMBus
s
E
E
WDT
I
C
Bus/SMBus
s
SSD Chip
(Optional) SATA 1
GPP 0,1,2,3
GPP
0,1,
2,3
G
LAN GPP 3
PCIe GEN2
(1 x4 or 4 x1
LAN
SPI I/F
SPI ROM
SPI Bus
SD Card I/F (Optional)
SD
Card
I/F
(Optional)
C / D
VGA
LVDS Port
(Single Channel) LTDP0
SMBus
(Optional)
1066~1600MT/s
SSD
(optional)
SPI Flash
BIOS
1
CPU
Fan
DDR3 SODIMM
AMD
G-Series SoC
1
Power-on
Select (JP1)
Intel
WGI210AT Standby
Power LED