Gigabyte GA-785GMT-USB3 User manual

GA-785GMT-USB3
AM3 socket motherboard for
AMD Phenom™II processor/ AMD Athlon™II processor
User's Manual
Rev. 1001
12ME-785TB3-1001R

Motherboard
GA-785GMT-USB3
Jan. 16, 2010
Jan 16, 2010
Motherboard
GA-785GMT-USB3

Copyright
©2010 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specications and features in this manual may be made by GIGABYTE with-
out prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or
published in any form or by any means without GIGABYTE's prior written permission.
Documentation Classications
In order to assist in the use of this product, GIGABYTE provides the following types of documentations:
For quick set-up of the product, read the Quick Installation Guide included with the product.
For detailed product information, carefully read the User's Manual.
For instructions on how to use GIGABYTE's unique features, read or download the information
on/from the Support&Downloads\Motherboard\Technology Guide page on our website.
For product-related information, check on our website at:
http://www.gigabyte.com.tw
Identifying Your Motherboard Revision
The revision number on your motherboard looks like this: "REV: X.X." For example, "REV: 1.0"
means the revision of the motherboard is 1.0. Check your motherboard revision before updating
motherboard BIOS, drivers, or when looking for technical information.
Example:

- 4 -
Table of Contents
Box Contents...................................................................................................................6
Optional Items .................................................................................................................6
GA-785GMT-USB3 Motherboard Layout.........................................................................7
GA-785GMT-USB3 Motherboard Block Diagram............................................................8
Chapter 1 Hardware Installation .....................................................................................9
1-1 Installation Precautions.................................................................................... 9
1-2 Product Specications.................................................................................... 10
1-3 Installing the CPU and CPU Cooler ............................................................... 13
1-3-1 Installing the CPU...................................................................................................13
1-3-2 Installing the CPU Cooler .......................................................................................15
1-4 Installing the Memory..................................................................................... 16
1-4-1 Dual Channel Memory Conguration .....................................................................16
1-4-2 Installing a Memory ...............................................................................................17
1-5 Installing an Expansion Card ......................................................................... 18
1-6 Setup of the ATI Hybrid CrossFireX™ Conguration....................................... 19
1-7 Back Panel Connectors.................................................................................. 20
1-8 Internal Connectors........................................................................................ 23
Chapter 2 BIOS Setup ..................................................................................................33
2-1 Startup Screen ............................................................................................... 34
2-2 The Main Menu .............................................................................................. 35
2-3 MB Intelligent Tweaker(M.I.T.)........................................................................ 37
2-4 Standard CMOS Features.............................................................................. 44
2-5 Advanced BIOS Features .............................................................................. 46
2-6 Integrated Peripherals.................................................................................... 49
2-7 Power Management Setup............................................................................. 52
2-8 PnP/PCI Congurations ................................................................................. 54
2-9 PC Health Status............................................................................................ 55
2-10 Load Fail-Safe Defaults.................................................................................. 57
2-11 Load Optimized Defaults................................................................................ 57
2-12 Set Supervisor/User Password ...................................................................... 58
2-13 Save & Exit Setup .......................................................................................... 59
2-14 Exit Without Saving........................................................................................ 59

- 5 -
Chapter 3 Drivers Installation........................................................................................61
3-1 Installing Chipset Drivers ............................................................................... 61
3-2 Application Software ...................................................................................... 62
3-3 Technical Manuals.......................................................................................... 62
3-4 Contact........................................................................................................... 63
3-5 System ........................................................................................................... 63
3-6 Download Center ........................................................................................... 64
3-7 New Utilities ................................................................................................... 64
Chapter 4 Unique Features...........................................................................................65
4-1 Xpress Recovery2.......................................................................................... 65
4-2 BIOS Update Utilities ..................................................................................... 68
4-2-1 Updating the BIOS with the Q-Flash Utility.............................................................68
4-2-2 Updating the BIOS with the @BIOS Utility .............................................................71
4-3 EasyTune 6 .................................................................................................... 72
4-4 Easy Energy Saver ........................................................................................ 73
4-5 Q-Share.......................................................................................................... 75
4-6 SMART Recovery........................................................................................... 76
4-7 Auto Green..................................................................................................... 77
Chapter 5 Appendix ......................................................................................................79
5-1 Conguring SATA Hard Drive(s)..................................................................... 79
5-1-1 Conguring the Onboard SATA Controller ............................................................79
5-1-2 Making a SATA RAID/AHCI Driver Diskette............................................................85
5-1-3 Installing the SATA RAID/AHCI Driver and Operating System ...............................87
5-2 Conguring Audio Input and Output............................................................... 91
5-2-1 Conguring 2/4/5.1/7.1-Channel Audio...................................................................91
5-2-2 Conguring S/PDIF In/Out......................................................................................93
5-2-3 Enabling the Dolby Home Theater Function...........................................................95
5-2-4 Conguring Microphone Recording........................................................................96
5-2-5 Using the Sound Recorder .....................................................................................98
5-3 Troubleshooting.............................................................................................. 99
5-3-1 Frequently Asked Questions ..................................................................................99
5-3-2 Troubleshooting Procedure ..................................................................................100
5-4 Regulatory Statements................................................................................. 102

- 6 -
Box Contents
GA-785GMT-USB3 motherboard
Motherboard driver disk
User's Manual
Quick Installation Guide
One IDE cable
Two SATA 3Gb/s cables
I/O Shield
Optional Items
Floppy disk drive cable (Part No. 12CF1-1FD001-7*R)
2-port USB 2.0 bracket (Part No. 12CR1-1UB030-5*R)
2-port IEEE 1394a bracket (Part No. 12CF1-1IE008-0*R)
2-port SATA power cable (Part No. 12CF1-2SERPW-0*R)
S/PDIF In and Out cable (Part No. 12CR1-1SPINO-1*R)
COM port cable (Part No. 12CF1-1CM001-3*R)
•The box contents above are for reference only and the actual items shall depend on the product package you obtain.
The box contents are subject to change without notice.
•The motherboard image is for reference only.

- 7 -
GA-785GMT-USB3 Motherboard Layout
(Note) Use this port to connect a PS/2 keyboard or PS/2 mouse.
KB(Note)_USB CPU_FAN
ATX
GA-785GMT-USB3
CD_IN
F_AUDIO
AUDIO
SPDIF_IO
PCIEX1
IDE
DDR3_1
DDR3_2
ATX_12V_2X4
AMD 785G
AMD SB710
SATA2_3
SATA2_0
SATA2_4
SATA2_2
SATA2_1
PCI1
DVI VGA
CODEC
USB30 LAN
PCI2 CLR_CMOS
BATTERY
M_BIOS
FDD
F_PANEL
COM
RTL8111D
B_BIOS
IT8720
TSB43AB23
SYS_FAN
PCIEX16
ESATA 1394 USB
F_1394_1
F_USB1 F_USB2
F_USB3
DDR3_3
DDR3_4
Socket AM3
HDMI SPDIF
NEC
D720200F1

- 8 -
GA-785GMT-USB3 Motherboard Block Diagram
AM3 CPU
Hyper Transport 3.0
AMD 785G
PCIe CLK
(100 MHz)
PCI Express Bus
CPU CLK+/- (200 MHz)
1 PCI Express x1
RTL8111D
DDR3 1800 (O.C.)/1333/1066 MHz
PCIe CLK
(100 MHz)
1 PCI Express x16
LAN
RJ45
x1
GFX CLK (100 MHz)
D-Sub
DVI-D or HDMI (Note 1)
PCI Express x16
(Note 1) Simultaneous output for DVI-D and HDMI is not supported.
(Note 2) Two share the same port with USB 3.0.
Dual Channel Memory
PS/2 KB or Mouse
AMD SB710
IT8720
Floppy
ATA-133/100/66/33 IDE Channel
COM Port
12 USB Ports (Note 2)
LPC
Bus
6 SATA 3Gb/s
Center/Subwoofer Speaker Out
Line Out
MIC
Line In
S/PDIF In
S/PDIF Out
Side Speaker Out
Surround Speaker Out
CODEC
2 PCI
PCI Bus
PCI CLK
(33 MHz)
TSB43AB23
2 IEEE 1394a
Dual BIOS
2 USB 3.0
NEC
D720200F1

- 9 - Hardware Installation
1-1 Installation Precautions
The motherboard contains numerous delicate electronic circuits and components which can
become damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read
the user's manual and follow these procedures:
• Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or
warranty sticker provided by your dealer. These stickers are required for warranty validation.
• Always remove the AC power by unplugging the power cord from the power outlet before
installing or removing the motherboard or other hardware components.
• When connecting hardware components to the internal connectors on the motherboard,
make sure they are connected tightly and securely.
• When handling the motherboard, avoid touching any metal leads or connectors.
• It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic com-
ponents such as a motherboard, CPU or memory. If you do not have an ESD wrist strap,
keep your hands dry and rst touch a metal object to eliminate static electricity.
• Prior to installing the motherboard, please have it on top of an antistatic pad or within an
electrostatic shielding container.
• Before unplugging the power supply cable from the motherboard, make sure the power sup-
ply has been turned off.
• Before turning on the power, make sure the power supply voltage has been set according to
the local voltage standard.
• Before using the product, please verify that all cables and power connectors of your hard-
ware components are connected.
• To prevent damage to the motherboard, do not allow screws to come in contact with the
motherboard circuit or its components.
• Make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
• Do not place the computer system on an uneven surface .
• Do not place the computer system in a high-temperature environment.
• Turning on the computer power during the installation process can lead to damage to sys-
tem components as well as physical harm to the user.
• If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certied computer technician.
Chapter 1 Hardware Installation

Hardware Installation - 10 -
1-2 Product Specications
CPU Support for AM3 processors:
AMD Phenom™II processor/ AMD Athlon™II processor
(Go to GIGABYTE's website for the latest CPU support list.)
Hyper Transport Bus
5200 MT/s
Chipset 
North Bridge: AMD 785G
 South Bridge: AMD SB710
Memory 4 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory (Note 1)
Dual channel memory architecture
Support for DDR3 1800(O.C.)/1333/1066 MHz memory modules
(Go to GIGABYTE's website for the latest memory support list.)
Onboard Graphics Integrated in the North Bridge:
- 1 x D-Sub port
- 1 x DVI-D port (Note 2) (Note 3)
- 1 x HDMI port (Note 3)
Audio    Realtek ALC889 codec
 High Denition Audio
 2/4/5.1/7.1-channel
Support for Dolby® Home Theater
Support for S/PDIF In/Out
 Support for CD In
LAN Realtek RTL8111D chip (10/100/1000 Mbit)
Expansion Slots 1 x PCI Express x16 slot, running at x16
(The PCI Express x16 slot conforms to PCI Express 2.0 standard.)
1 x PCI Express x1 slot
2 x PCI slots
Storage Interface South Bridge:
- 1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices
- 5 x SATA 3Gb/s connectors (SATA2_0, SATA2_1, SATA2_2, SATA2_3,
SATA2_4) supporting up to 5 SATA 3Gb/s devices
- 1 x eSATA 3Gb/s port on the back panel supporting up to 1 SATA 3Gb/s
device
- Support for SATA RAID 0, RAID 1, RAID 10, and JBOD
iTE IT8720 chip:
- 1 x oppy disk drive connector supporting up to 1 oppy disk drive

- 11 - Hardware Installation
USB South Bridge
- Up to 12 USB 2.0/1.1 ports (Note 4) (6 on the back panel, 6 via the USB
brackets connected to the internal USB headers)
NEC D720200F1 chip:
- Up to 2 USB 3.0 ports on the back panel
IEEE 1394 T.I. TSB43AB23 chip
- Up to 2 IEEE 1394a ports (1 on the back panel, 1 via the IEEE 1394a
bracket connected to the internal IEEE 1394a header)
Internal 1 x 24-pin ATX main power connector
Connectors 1 x 8-pin ATX 12V power connector
 1 x oppy disk drive connector
1 x IDE connector
5 x SATA 3Gb/s connectors
1 x CPU fan header
1 x system fan header
1 x front panel header
1 x front panel audio header
1 x CD In connector
1 x S/PDIF In/Out header
3 x USB 2.0/1.1 headers
1 x IEEE 1394a header
1 x serial port header
1 x clearing CMOS jumper
Back Panel 1 x PS/2 keyboard port or PS/2 mouse port
Connectors 1 x D-Sub port
1 x DVI-D port (Note 2) (Note 3)
1 x HDMI port (Note 3)
1 x optical S/PDIF Out connector
1 x eSATA 3Gb/s port
1 x IEEE 1394a port
4 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports
1 x RJ-45 port
6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/
Side Speaker Out/Line In/Line Out/Microphone)
I/O Controller iTE IT8720 chip
Hardware Monitor System voltage detection
CPU/System temperature detection
CPU/System fan speed detection
CPU overheating warning
CPU/System/Power fan fail warning
CPU/System fan speed control (Note 5)

Hardware Installation - 12 -
(Note 1) Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is
installed, the actual memory size displayed will be less than 4 GB.
(Note 2) The DVI-D port does not support D-Sub connection by adapter.
(Note 3) Simultaneous output for DVI-D and HDMI is not supported.
(Note 4) Two share the same port with USB 3.0.
(Note 5) Whether the CPU/system fan speed control function is supported will depend on the CPU/system
cooler you install.
(Note 6) Available functions in EasyTune may differ by motherboard model.
BIOS  2 x 8 Mbit ash
Use of licensed AWARD BIOS
Support for DualBIOS™
PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b
Unique Features Support for @BIOS
Support for Q-Flash
Support for Xpress BIOS Rescue
Support for Download Center
Support for Xpress Install
Support for Xpress Recovery2
Support for EasyTune (Note 5)
Support for Easy Energy Saver
Support for SMART Recovery
Support for Auto Green
Support for Q-Share
Bundled Software Norton Internet Security (OEM version)
Operating System Support for Microsoft®Windows®7/Vista/XP
Form Factor Micro ATX Form Factor; 24.3cm x 24.3cm

- 13 - Hardware Installation
1-3 Installing the CPU and CPU Cooler
1-3-1 Installing the CPU
A. Locate the pin one (denoted by a small triangle) of the CPU socket and the CPU.
Read the following guidelines before you begin to install the CPU:
• Make sure that the motherboard supports the CPU.
(Go to GIGABYTE's website for the latest CPU support list.)
• Always turn off the computer and unplug the power cord from the power outlet before installing
the CPU to prevent hardware damage.
• Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly. (Or you may
locate the notches on both sides of the CPU and alignment keys on the CPU socket.)
• Apply an even and thin layer of thermal grease on the surface of the CPU.
• Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and dam-
age of the CPU may occur.
• Set the CPU host frequency in accordance with the CPU specications. It is not recommended
that the system bus frequency be set beyond hardware specications since it does not meet the
standard requirements for the peripherals. If you wish to set the frequency beyond the standard
specications, please do so according to your hardware specications including the CPU, graph-
ics card, memory, hard drive, etc.
AM3 CPU
AM3 Socket
A Small Triangle Marking
Denotes CPU Pin One
A Small Triangle Mark
Denotes Pin One of the
Socket

Hardware Installation - 14 -
B. Follow the steps below to correctly install the CPU into the motherboard CPU socket.
• Before installing the CPU, make sure to turn off the computer and unplug the power cord from the
power outlet to prevent damage to the CPU.
• Do not force the CPU into the CPU socket. The CPU cannot t in if oriented incorrectly. Adjust the
CPU orientation if this occurs.
Step 1:
Completely lift up the CPU socket locking lever.
Step 2:
Align the CPU pin one (small triangle marking) with the triangle mark
on the CPU socket and gently insert the CPU into the socket. Make
sure that the CPU pins t perfectly into their holes. Once the CPU is
positioned into its socket, place one nger down on the middle of the
CPU, lowering the locking lever and latching it into the fully locked
position.
CPU Socket
Locking Lever

- 15 - Hardware Installation
1-3-2 Installing the CPU Cooler
Follow the steps below to correctly install the CPU cooler on the CPU. (The following procedure uses the
GIGABYTE cooler as the example.)
Step 1:
Apply an even and thin layer of thermal grease
on the surface of the installed CPU.
Step 2:
Place the CPU cooler on the CPU.
Step 3:
Hook the CPU cooler clip to the mounting lug
on one side of the retention frame. On the other
side,push straight down on the the CPU cooler
clip to hook it to the mounting lug on the reten-
tion frame.
Step 4:
Turn the cam handle from the left side to the
right side (as the picture above shows) to lock
into place. (Refer to your CPU cooler installation
manual for instructions on installing the cooler.)
Step 5:
Finally, attach the power connector of the CPU cooler to the CPU
fan header (CPU_FAN) on the motherboard.
Use extreme care when removing the CPU cooler because the thermal grease/tape between the
CPU cooler and CPU may adhere to the CPU. Inadequately removing the CPU cooler may damage
the CPU.

Hardware Installation - 16 -
1-4 Installing the Memory
DDR3_1 DDR3_2 DDR3_3
DDR3_4
Read the following guidelines before you begin to install the memory:
•Make sure that the motherboard supports the memory. It is recommended that memory of the
same capacity, brand, speed, and chips be used.
(Go to GIGABYTE's website for the latest memory support list.)
•Always turn off the computer and unplug the power cord from the power outlet before installing
the memory to prevent hardware damage.
•Memory modules have a foolproof design. A memory module can be installed in only one direc-
tion. If you are unable to insert the memory, switch the direction.
If two memory modules are to be installed, it is rec-
ommended that you install them in the DDR3_1 and
DDR3_2 sockets.
Dual Channel Memory Congurations Table
(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)
DDR3_1 DDR3_2 DDR3_3 DDR3_4
DS/SS DS/SS - - - -
- - - - DS/SS DS/SS
DS/SS DS/SS DS/SS DS/SS
Two Modules
Four Modules
1-4-1 Dual Channel Memory Conguration
This motherboard provides four DDR3 memory sockets and supports Dual Channel Technology. After the
memory is installed, the BIOS will automatically detect the specications and capacity of the memory. En-
abling Dual Channel memory mode will double the original memory bandwidth.
The four DDR3 memory sockets are divided into two channels and each channel has two memory sockets as
following:
Channel 0: DDR3_1, DDR3_3
Channel 1: DDR3_2, DDR3_4
Due to CPU limitations, read the following guidelines before installing the memory in Dual Channel mode.
1. Dual Channel mode cannot be enabled if only one DDR3 memory module is installed.
2. When enabling Dual Channel mode with two or four memory modules, it is recommended that
memory of the same capacity, brand, speed, and chips be used and installed in the same colored
DDR3 sockets for optimum performance.

- 17 - Hardware Installation
1-4-2 Installing a Memory
Notch
Before installing a memory module, make sure to turn off the computer and unplug the power
cord from the power outlet to prevent damage to the memory module.
DDR3 and DDR2 DIMMs are not compatible to each other or DDR DIMMs. Be sure to install
DDR3 DIMMs on this motherboard.
DDR3 DIMM
A DDR3 memory module has a notch, so it can only t in one direction. Follow the steps below to correctly
install your memory modules in the memory sockets.
Step 1:
Note the orientation of the memory module. Spread the retaining
clips at both ends of the memory socket. Place the memory module
on the socket. As indicated in the picture on the left, place your n-
gers on the top edge of the memory, push down on the memory and
insert it vertically into the memory socket.
Step 2:
The clips at both ends of the socket will snap into place when the
memory module is securely inserted.

Hardware Installation - 18 -
1-5 Installing an Expansion Card
Read the following guidelines before you begin to install an expansion card:
•Make sure the motherboard supports the expansion card. Carefully read the manual that came
with your expansion card.
•Always turn off the computer and unplug the power cord from the power outlet before installing
an expansion card to prevent hardware damage.
Follow the steps below to correctly install your expansion card in the expansion slot.
1. Locate an expansion slot that supports your card. Remove the metal slot cover from the chassis back panel.
2. Align the card with the slot, and press down on the card until it is fully seated in the slot.
3. Make sure the metal contacts on the card are completely inserted into the slot.
4. Secure the card’s metal bracket to the chassis back panel with a screw.
5. After installing all expansion cards, replace the chassis cover(s).
6. Turn on your computer. If necessary, go to BIOS Setup to make any required BIOS changes for your
expansion card(s).
7. Install the driver provided with the expansion card in your operating system.
Example: Installing and Removing a PCI Express Graphics Card:
•Installing a Graphics Card:
Gently push down on the top edge of the card until
it is fully inserted into the PCI Express slot. Make
sure the card is securely seated in the slot and
does not rock.
PCI Slot
PCI Express x1 Slot
PCI Express x16 Slot
•Removing the Card from the PCIEX16_1 slot:
Gently push back on the lever on the slot and then lift the card straight out from
the slot.

- 19 - Hardware Installation
1-6 Setup of the ATI Hybrid CrossFireX™ Conguration
Combining the onboard GPU with a discrete graphics card, ATI Hybrid CrossFireX can provide signicantly
advanced display performance for AMD platform. This section give instructions on conguring an ATI Hybrid
CrossFireX system.
A. System Requirements
- Windows 7/Vista or Windows XP (Note 1) operating system
- An ATI Hybrid CrossFireX-supported motherboard and correct driver
- An ATI Hybrid CrossFireX-supported graphics card (Note 2)
B. Connecting the Graphics Cards
Step 1:
Observe the steps in "1-5 Installing an Expansion Card" and install an ATI Hybrid CrossFireX-supported
graphics card on the PCI Express slot.
Step 2:
Plug the display cable into the onboard graphics port on the back panel.
C. BIOS Setup
Enter BIOS Setup to set the following items under the Advanced BIOS Features menu:
- Set Internal Graphics Mode to UMA.(Note 3)
- Set UMA Frame Buffer Size to 256MB or 512MB.(Note 3)
- Set Surround View to Disabled.
- Set Init Display First to OnChipVGA.
D. Conguring the Graphics Driver
After installing the motherboard driver in the operating system, go
to the ATI Catalyst™Control Center. Select CrossFire™on the
Graphics menu on the upper left corner and ensure the Enable
CrossFire™check box is selected.
(Note 1) For Windows XP, you must install AMD chipset driver version 8.51 or later.
(Note 2) You do not have to install the graphics card driver if the motherboard chipset driver has been in-
stalled.
(Note 3) To change the Internal Graphics Mode or UMA Frame Buffer Size setting in BIOS Setup, be sure
to disable the CrossFire function in the operating system rst.

Hardware Installation - 20 -
1-7 Back Panel Connectors
USB 2.0/1.1 Port
The USB port supports the USB 2.0/1.1 specication. Use this port for USB devices such as a USB key-
board/mouse, USB printer, USB ash drive and etc.
PS/2 Keyboard or PS/2 Mouse Port
Use this port to connect a PS/2 keyboard or PS/2 mouse.
D-Sub Port
The D-Sub port supports a 15-pin D-Sub connector. Connect a monitor that supports D-Sub connection
to this port.
DVI-D Port (Note 1)(Note 2)
The DVI-D port supports DVI-D specictation. Connect a monitor that supports DVI-D connection to this
port.
HDMI Port (Note 2)
The HDMI (High-Denition Multimedia Interface) provides an all-digital audio/video interface to transmit
the uncompressed audio/video signals and is HDCP compliant. Connect the HDMI audio/video device to
this port. The HDMI Technology can support a maximum resolution of 1920x1080p but the actual resolu-
tions supported depend on the monitor being used.
In Windows Vista, select Start>Control Panel>Sound, select Realtek
HDMI Output and then click Set Default.
(Note 1) The DVI-D port does not support D-Sub connection by adapter.
(Note 2) Simultaneous output for DVI-D and HDMI is not supported.
•After installing the HDMI device, make sure the default device for sound playback is the HDMI
device. (The item name may differ by operating system. The following screen is from Win-
dows Vista.)
•Please note the HDMI audio output only supports AC3, DTS and 2-channel-LPCM formats.
(AC3 and DTS require the use of an external decoder for decoding.)
(Note 1)(Note 2)
(Note 2)