DFI SB331-D User manual

SB331-D
System Board
User’s Manual
A19500137

Copyright
This publication contains information that is protected by copyright. No part of it
may be reproduced in any form or by any means or used to make any transfor-
mation/adaptation without the prior written permission from the copyright hold-
ers.
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 specifically 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 document. 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.
© 2011. All Rights Reserved.
Trademarks
All trademarks and registered trademarks of products appearing in this manual
are the properties of their respective holders.

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 reasonable 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 televi-
sion reception, which can be determined by turning the equipment off and on,
the user is encouraged 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 compliance 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.

1
4
Introduction
Table of Contents
Copyright...........................................................................................2
Trademarks........................................................................................2
FCC and DOC Statement on Class B..............................................3
About this Manual .............................................................................6
Warranty ..........................................................................................6
Static Electricity Precautions.............................................................7
Safety Measures.................................................................................7
About the Package ............................................................................8
Before Using the System Board........................................................8
Chapter 1 - Introduction ..................................................................9
Specifications..................................................................................9
Features ...................................................................................... 11
Chapter 2 - Hardware Installation.................................................. 14
System Board Layout .................................................................... 14
System Memory ........................................................................... 15
Installing the DIM Module ......................................................... 17
CPU ............................................................................................ 19
Installing the CPU .................................................................... 20
Jumper Settings............................................................................. 24
Clear CMOS Data ..................................................................... 24
PS/2 Power Select.................................................................... 25
USB Power Select..................................................................... 26
Power-on Select....................................................................... 27
COM1/COM2 RS232/RS422/RS485 Select.................................... 28
COM1/COM2 RS232/Power Select............................................... 29
Rear Panel I/O Ports..................................................................... 30
COM (Serial) Ports ................................................................... 31
HDMI Port............................................................................... 32
DVI-I Port ............................................................................... 33
RJ45 LAN Ports........................................................................ 34
USB Ports................................................................................ 35
Audio...................................................................................... 37

1
5
Introduction
I/O Connectors............................................................................ 38
S/PDIF Connector..................................................................... 38
SATA (Serial ATA) Connectors.................................................... 39
Cooling Fan Connectors............................................................. 40
Power Connectors .................................................................... 41
Standby Power LED.................................................................. 42
Front Panel Connectors............................................................. 43
Expansion Slots ....................................................................... 44
Battery ................................................................................... 45
SPI JTAG Connector.................................................................. 46
Digital I/O Connector................................................................ 47
Chassis Intrusion Connector ...................................................... 49
PS/2 Keyboard/ Mouse Connector .............................................. 50
Chapter 3 - BIOS Setup.................................................................. 52
Overview ..............................................................................................................52
AMI BIOS Setup Utility ................................................................. 54
Main....................................................................................... 54
Advanced................................................................................ 55
Chipset ................................................................................... 69
Boot....................................................................................... 75
Security.................................................................................. 76
Save & Exit............................................................................. 77
Updating the BIOS........................................................................ 78
Chapter 4 - Supported Software ................................................... 79
Appendix A - Watchdog Sample Code ......................................... 102
Appendix B - System Error Message ............................................ 103
Appendix C - Troubleshooting...................................................... 105

1
6
Introduction
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 installation, modification, accidents or unauthorized repair of the
product.
3. Unless otherwise instructed in this user’s manual, the user may not, under
any circumstances, 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.

1
7
Introduction
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 dis-
charge can damage computer components without causing any signs of physical
damage. You must take extra care in handling them to ensure against electro-
static 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 compo-
nents, contacts or connections.
5. Avoid touching the pins or contacts on all modules and connectors. Hold
modules or connectors by their ends.
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 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.
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 instal-
lation or servicing. After installation or servicing, cover the system chassis
before plugging the power cord.
Battery:
• Danger of explosion if battery incorrectly replaced.
• Replace only with the same or equivalent type recommend by the manufac-
turer.
• Dispose of used batteries according to local ordinance.

1
8
Introduction
About the Package
The system board package contains the following items. If any of these items are
missing or damaged, please contact your dealer or sales representative for as-
sistance.
One system board
Two Serial ATA data cables
Two Serial ATA power cables
Two USB cables
One PS2 cable
One bracket mounted with a COM port cable
One I/O shield
One DVD
One QR (Quick Reference)
The system 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, CD-ROM, etc.
You will also need external system peripherals you intend to use which will nor-
mally include at least a keyboard, a mouse and a video display monitor.

1
9
Introduction
Processor
Chipset
System Memory
Expansion Slots
Graphics
Audio
LAN
Serial ATA
Chapter 1 - Introduction
• LGA 1155 socket for:
- Intel®CoreTM i7-2600 (3.4GHz, 95W)
- Intel®CoreTM i5-2400 (3.1GHz, 95W)
- Intel®CoreTM i3-2120 (3.3GHz, 65W)
- Intel®Pentium®G850
• New microarchitecture on 32nm process technology
• Intel®Advanced Vector Extensions (Intel®AVX) Instructions
• Intel®Turbo Boost Technology
• Intel®H61 Express Chipset
• Two 240-pin DDR3 DIMM sockets
• Supports DDR3 1066/1333MHz
• Supports dual channel memory interface
• Supports up to 16GB system memory
• DRAM device technologies: 1Gb, 2GB and 4Gb DDR3 DRAM
technologies are supported for x8 and x16 devices, unbuf-
fered, non-ECC
• 2 PCI Express Gen 2 x16 slots (PCIe 2.0)
- 1 x16 signal and 1 x2 signal
• 2 PCI Express x1 slots (PCIe 2.0)
• Intel®HD Graphics
• Display ports:
- DVI-I (RGB and TMDS signals) - ASMedia1442
- HDMI (TMDS signal) - ASMedia1442
• DVI and HDMI display resolution up to 1920x1200
• Supports 6 Graphics Execution Units (EUs)
• Intel®Clear Video Technology
• DirectX Video Acceleration (DXVA) support for accelerating
video processing
• Realtek ALC262 2-channel High Definition Audio
• DACs with 100dB SNR; two stereo DACs support 24-bit
PCM format for stereo audio playback
• ADCs with 90dB SNR; three stereo ADCs support 20-bit
PCM format for multiple input streaming
• S/PDIF audio interface
• 1 Intel W82579LM with iAMT7.0 Gigabit Ethernet Phy
• 1 Intel W82574 PCI Express Gigabit Ethernet controller
• Integrated 10/100/1000 transceiver
• Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supports wire management
• 4 SATA 2.0 ports with data transfer rate up to 3Gb/s
Specifications

1
10
Introduction
TPM (optional)
Rear Panel I/O
Ports
I/O Connectors
BIOS
Energy Efficient
Design
Damage Free
Intelligence
• Infineon SLB9635
• Provides a Trusted PC for secure transactions
• Provides software license protection, enforcement and pass-
word protection
• 2 DB-9 serial ports
- Supports RS232/422/485
- Pins 1 and 9 of RS232 functions as RS232 signal or power
(selectable via jumper)
• 1 DVI-I port
• 1 HDMI port
• 2 RJ45 LAN ports
• 6 USB 2.0/1.1 ports
• 2 connectors for 4 external USB 2.0/1.1 ports
• 1 PS/2 KB/Mouse connector
• 1 36-bit Digital I/O connector
• 1 front audio connector for line-out and mic-in jacks
• 1 S/PDIF connector
• 4 Serial ATA ports
• 1 24-pin ATX power connector
• 1 8-pin 12V power connector
• 1 chassis intrusion connector
• 1 front panel connector
• 2 fan connectors
• AMI BIOS
• 64Mbit SPI BIOS
• Supports ErP Lot6 power saving (optional)
• Supports ACPI
• System Power Management
• Wake-On-Events include:
- Wake-On-PS/2 KB/Mouse
- Wake-On-USB KB/Mouse
- Wake-On-LAN
- RTC timer to power-on the system
• CPU stopped clock control
• AC power failure recovery
• Monitors CPU/system temperature and overheat alarm
• Monitors VCORE/5V/3.3V/V_DIMM/12V/5VSB voltages and
failure alarm
• Monitors CPU/system fan speed and failure alarm
• Read back capability that displays temperature, voltage and
fan speed
• Watchdog timer function
Temperature
Humidity
PCB
• 0oC to 60oC
• 10% to 90%
• microATX form factor
• 244mm (9.6”) x 244mm (9.6”)

1
11
Introduction
Features
Watchdog Timer
The Watchdog Timer function allows your application to regularly “clear” the sys-
tem 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. It offers
peak data transfer rate of up to 21 Gb/s bandwidth. The advantages of DDR3
are its higher bandwidth and its increase in performance at a lower power than
DDR2.
Graphics
The integrated Intel HD graphics for graphics intensive applications delivers ex-
ceptional 3D, 2D and video capabilities. It supports VGA and DVI interfaces.
DVI
DVI (Digital Visual Interface) is a form of video interface technology made to
maximize the quality of flat panel LCD monitors and modern video graphics
cards. Data is transmitted using the TMDS (Transition Minimized Differential Sig-
naling) protocol, providing a digital signal from the PC’s graphics subsystem to
the display.
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 trans-
fer rate of 1 Gigabyte per second. The PCI Express architecture also provides a
high performance graphics infrastructure by enhancing the capability of a x16 PCI
Express lane to provide 8 Gigabytes per second transfer rate.
Audio
The Realtek ALC262 audio codec provides 2-channel High Definition audio output.

1
12
Introduction
Serial ATA
Serial ATA is a storage interface that is compliant with SATA 1.0a specifica-
tion. SATA 3.0 supports speed up to 6Gb/s while SATA 2.0 supports speed up to
3Gb/s. This improves hard drive performance faster than the standard parallel
ATA whose data transfer rate is 100MB/s.
Gigabit LAN
The Intel W82579LM PHY and Intel W82574L PCI Express Gigabit controllers sup-
port up to 1Gbps data transmission.
USB
The system board supports USB 2.0 and USB 1.1 ports. USB 1.1 supports 12Mb/
second bandwidth while USB 2.0 supports 480Mb/second bandwidth providing a
marked improvement in device transfer speeds between your computer and a
wide range of simultaneously accessible external Plug and Play peripherals.
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 Management Event) signal. However, if your system is in the
Suspend mode, you can power-on the system only through an IRQ or DMA inter-
rupt.
Important:
The 5V_standby power source of your power supply must support
≥720mA.
Wake-On-PS/2
This function allows you to use the PS/2 keyboard or PS/2 mouse to power-on
the system.
Important:
The 5V_standby power source of your power supply must support
≥720mA.
Wake-On-USB
This function allows you to use a USB keyboard or USB mouse to wake up a sys-
tem from the S3 (STR - Suspend To RAM) state.
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.

1
13
Introduction
RTC Timer
The RTC installed on the system board allows your system to automatically pow-
er-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 Management and Plug-and-Play with operating systems that
support OS Direct Power Management. ACPI when enabled in the Power Manage-
ment 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 session will
resume exactly where you left off the next time you power-on the system.
Important:
The 5V_standby power source of your power supply must support
720mA.
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.

14
2Hardware Installation
System Board Layout
Chapter 2 - Hardware Installation
12 1
24
ATX po we r 13
DDR3_2
DDR3_1
1
Front panel
1
CPU fan
Intel
W82574L
LGA 1155
PCIe x1
PCIe x1
PCIe x16
7
8
SPI
2
1
USB 2-3
1
SATA 5
1
SATA 4
1
1
System
fan
1
Battery
Intel
H61
SATA 0
1
SATA 1
1
Realtek
ALC262
S/PDIF
1
29
10
1
Front audio USB 4-5
PS/2 power
select (J )P7
USB 4-5/2-3
power select
(JP9)
SATA 2.0
Clear CMOS
(J )P10
Power-on
select ( )JP11
PS/2 KB/Mouse
Connector
DIO
PCIe x16 (x2 signal)
1
2
19
1
LAN 3
USB 8-9
USB 10-11
LAN 1
USB 0-1
DVI-I
HDMI
COM 1
COM 2
JP2
JP1
1
26
5
1
26
5
1515
JP6 91
ASMedia
1442
Fintek
F71879F
1
4
5
8
+12V power
1
Intel
W82579LM
1
COM1 RS232/422/485
select ( )JP5
COM2 RS232/422/485
select ( )JP6
COM1 RS232/Power
select ( )JP1
COM2 RS232/Power
select ( )JP2
USB 0-1/10-11
power select
(JP3)
USB 8-9
power select
(JP4)
Chassis
intrusion
ASMedia
1442
26
JP5
2610
21
11
-
Standby
Power LED
SPI Flash
BIOS
1
12
11
SATA 2.0

15
2
Hardware Installation
1
2
19
System Memory
Important:
Electrostatic discharge (ESD) can damage your system board, processor,
disk drives, add-in boards, 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 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 pro-
tection.
DDR3-1
DDR3-2
Important:
1. 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.
2. When buying the DDR3, please consider the thickness of the memory
to avoid problems with the ATX power connector at the moment of their
installation.
Features
• DRAM device technologies: 1Gb, 2Gb and 4Gb DDR3 DRAM technologies are
supported for x8 and x16 devices, unbuffered, non-ECC
• Dual channel memory interface
• Maximum of 16GB system memory

16
2Hardware Installation
DIMMs are on the same channel.
DIMMs in a channel can be identical or com-
pletely different. However, we highly recommend
using identical DIMMs.
Not all slots need to be populated.
DIMMs of the same memory configuration are
on different channels.
Single Channel
Dual Channel
The system board supports the following memory interface.
Single Channel (SC)
Data will be accessed in chunks of 64 bits (8B) 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.
Important:
1. You can populate either Channel A or Channel B first.
2. When installing a DIMM in Channel A or Channel B, always populate
the socket that is farthest the CPU. In this case, it will mean popu-
lating DDR3-2 and/or DDR3-4 first.
3. If you intend to use dual channel, the same rule applies - always
the socket farthest the CPU. Populate DDR3-2 and/or DDR3-4 first;
not DDR3-2 and DDR3-3 and not DDR3-1 and DDR3-4.

17
2
Hardware Installation
Note:
The system board used in the following illustrations may not resemble
the actual board. These illustrations are for reference only.
Installing the DIM Module
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. Push the “ejector tabs” which are at the ends of the socket to the side.
Ejector tab
Ejector tab
5. Note how the module is keyed to the socket.
Key
Notch

18
2Hardware Installation
7. Seat the module vertically, pressing it down firmly until it is completely seat-
ed in the socket.
6. Grasping the module by its edges, position the module above the socket with
the “notch” in the module aligned with the “key” on the socket. The keying
mechanism ensures the module can be plugged into the socket in only one
way.
8. The ejector tabs at the ends of the socket will automatically snap into the
locked position to hold the module in place.

19
2
Hardware Installation
CPU
The system board is equipped with a surface mount LGA 1155 socket. This sock-
et is exclusively designed for installing a LGA 1155 packaged Intel CPU.
Important:
1. Before you proceed, make sure (1) the LGA 1155 socket comes with
a protective cap, (2) the cap is not damaged and (3) the socket’s
contact pins are not bent. If the cap is missing or the cap and/or
contact pins are damaged, contact your dealer immediately.
2. Make sure to keep the protective cap. RMA requests will be accepted
and processed only if the LGA 1155 socket comes with the protective
cap.
Protective
cap
Note:
The system board used in the following illustrations may not resemble
the actual board. These illustrations are for reference only.

20
2Hardware Installation
Installing the CPU
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 LGA 1155 CPU
socket on the system
board.
Important:
The CPU socket must not
come in contact with any-
thing other than the CPU.
Avoid unnecessary expo-
sure. Remove the protec-
tive cap only when you are
about to install the CPU.
4. Unlock the socket by push-
ing the load lever down,
moving it sideways until it
is released from the reten-
tion tab; then lift the load
lever up.
Retention tab
Load lever
1
2
19