ECS G41T-M7 User Manual
Preface
Copyright
This publication, including all photographs, illustrations and software, is protected
under international copyright laws, with all rights reserved. Neither this manual, nor
any of the material contained herein, may be reproduced without written consent of
the author.
Version 1.0B
Disclaimer
The information in this document is subject to change without notice. The manufacturer makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any
particular purpose. The manufacturer reserves the right to revise this publication and
to make changes from time to time in the content hereof without obligation of the
manufacturer to notify any person of such revision or changes.
Trademark Recognition
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp.
MMX, Pentium, Pentium-II, Pentium-III, Celeron are registered trademarks of Intel
Corporation.
Other product names used in this manual are the properties of their respective
owners and are acknowledged.
Federal Communications Commission (FCC)
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 in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, 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 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 onto 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
Shielded interconnect cables and a shielded AC power cable must be employed with
this equipment to ensure compliance with the pertinent RF emission limits governing this device. Changes or modifications not expressly approved by the system’s
manufacturer could void the user’s authority to operate the equipment.
Preface
ii
Declaration of Conformity
This device complies with part 15 of the FCC rules. Operation is subject to the
following conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received, including interference that may cause undesired operation
Canadian Department of Communications
This class B digital apparatus meets all requirements of the Canadian Interferencecausing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Réglement sur
le matériel brouilieur du Canada.
About the Manual
The manual consists of the following:
Chapter 1
Introducing the Motherboard
Chapter 2
Installing the Motherboard
Chapter 3
Using BIOS
Chapter 4
Using the Motherboard Software
Chatper 5
Setting Up eJIFFY
Chatper 6
Trouble Shooting
Describes features of the
motherboard.
Go to
Describes installation of motherboard
components.
Go to
Provides information on using the
BIOS Setup Utility.
Go to
Describes the motherboard software.
Go to
Describes the eJIFFY setting up
Go to
Provides basic trouble shooting tips
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Preface i
Chapter 1 1
Introducing the Motherboard 1
Introduction......................................................................................1
Feature...............................................................................................2
Specification......................................................................................5
Motherboard Components.............................................................6
iii
Chapter 2
Installing the Motherboard 7
Safety Precautions............................................................................7
Choosing a Computer Case.............................................................7
Installing the Motherboard in a Case............................................7
Checking Jumper Settings...............................................................8
Setting Jumpers...................................................................8
Checking Jumper Settings...................................................9
Jumper Settings...................................................................9
Installing Hardware........................................................................10
Installing the Processor.....................................................10
Installing Memory Modules...............................................12
Expansion Slots.................................................................13
Connecting Optional Devices............................................15
Installing a Hard Disk Drive/CD-ROM/SA T A Hard Drive..17
Connecting I/O Devices................................................................19
Connecting Case Components.....................................................20
Front Panel Header...........................................................23
7 7
7
7 7
Chapter 3 25
Using BIOS 25
About the Setup Utility ................................................................ 25
The Standard Configuration..............................................25
Entering the Setup Utility....................................................25
Resetting the Default CMOS V alues...................................26
Using BIOS......................................................................................27
Standard CMOS Setup.......................................................28
Advanced Setup..................................................................30
Advanced Chipset Setup.....................................................32
Integrated Peripherals........................................................33
Power Management Setup..................................................34
iv
PCI/PnP Setup...................................................................36
PC Health Status................................................................36
Frequency/Voltage Contr ol.................................................41
Load Default Settings.........................................................42
Supervisor Password.........................................................42
User Password...................................................................43
Save & Exit Setup................................................................43
Exit Without Saving.............................................................43
Updating the BIOS...............................................................44
Chapter 4
Using the Motherboard Software 45
About the Software DVD-ROM/CD-ROM..................................45
Auto-installing under Windows XP/V ista/7...............................45
Running Setup....................................................................46
Manual Installation........................................................................48
Utility Software Reference............................................................48
45 45
45
45 45
Chapter 5
49 49
49
49 49
Setting Up eJIFFY 49
Introduction..........................................................................................49
Installation and BIOS Setup.................................................................50
Entering eJIFFY.............................................................................................53
Features Icons...........................................................................................54
Usage FAQ.................................................................................................55
Chapter 6
59 59
59
59 59
T r ouble Shooting 59
Start up problems during assembly.......................................................59
Start up problems after prolong use.................................................60
Maintenance and care tips..................................................................60
Basic Troubleshooting Flowchart...................................................61
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the G41T-M7 motherboard. This motherboard is a high
performance, enhanced function motherboard designed to support the LGA775 socket
Intel Core 2 Quad/Intel® CoreTM 2 Duo/Pentium® Dual-Core/Celeron® Dual-Core/
Celeron® 400 series processors for high-end business or personal desktop markets.
The motherboard incorporates the Intel® G41 Northbridge (NB) and Intel® ICH7
Southbridge (SB) chipsets. The Northbridge supports a Front Side Bus (FSB) frequency of 1333/1066 MHz using a scalable FSB Vcc_CPU. The memory controller
supports DDR3 memory DIMM frequencies of 1066/800. It supports two DDR3
sockets with up to maximum memory of 8 GB. DDR3 Maximum memory bandwidth
of 12.8 GB/s in dual-channel symmetric mode assuming DDR3 1066/800 MHz. High
resolution graphics via one PCI Express slot, intended for Graphics Interface, is fully
compliant to the PCI Express Gen 1.
The ICH7 Southbridge supports one PCI slot which is PCI v2.3 compliant. In addition, one PCI Express x1 slot is supported, fully compliant to the PCI Express Base
Specification revision 1.0. It implements an EHCI compliant interface that provides
480 Mb/s bandwidth for eight USB 2.0 ports (four USB ports and two USB 2.0 headers
support additional four USB ports). One onboard IDE connector supports two IDE
devices in Ultra ATA100/66/33 mode. The Southbridge integrates a Serial ATA host
controller, supporting two SATA ports with maximum transfer rate up to 3.0 Gb/s
each.
1
The motherboard is equipped with advanced full set of I/O ports in the rear panel,
including PS/2 mouse and keyboard connectors, one VGA port, four USB ports, one
LAN port, and audio jacks for microphone, line-in and line-out.
Introducing the Motherboard
2
Feature
Processor
The motherboard uses an LGA775 type of Intel Core 2 Quad/Intel® CoreTM 2
Duo/Pentium® Dual-Core/Celeron® Dual-Core/Celeron® 400 series processors
that carries the following features:
• Intel Core 2 Quad/Intel® CoreTM 2 Duo/Pentium® Dual-Core/Celeron
Dual-Core/Celeron® 400 series processors
• Supports a system bus (FSB) of 1333/1066/800 MHz
• LGA775 socket for latest Intel® 45nm Multi-Core processors
®
Chipset
The Intel® G41 Northbridge (NB) and Intel® ICH7 Southbridge (SB) chipsets are
based on an innovative and scalable architecture with proven reliability and
performance.
G41 (NB)
• Supports 36-bit host bus addressing, allowing the CPU to
access the entire 64 GB of the memory address space
• 2 GB/s point-to-point Direct Media Interface (DMI) to
ICH7 (1 GB/s each direction)
• Supports 2-GB, 1-Gb, 512 Mb DDR3 DRAM technologies for x8 and x16 devices
• One, 16-lane (x16) PCI Express port intended for external device attach, fully compatible to the PCI Express
Gen 1
• An integrated graphics device (IGD) delivering cost competitive 3D, 2D and video capabilities
• Microsoft DX10 and 128MB share memory are supported
ICH7 (SB)
• Enhanced DMA Controller, interrupt controller, and timer
functions
• Compliant with PCI Express Base Specification, Revi-
sion 1.0a
• Compliant with PCI v2.3 specification
• Integrated SATA 3.0 Gb/s Host Controller
• Integrated USB 2.0 Host Controller supporting up to
eight USB 2.0 ports
• Integrated IDE controller supports Ultra ATA 100/66/
33
Memory
• Supports DDR3 1333/1066 DDR3 SDRAM* with Dual-channel architec-
ture.
• Accommodates two unbuffered DIMMs.
• 2 x 240-pin DDR3 DIMM sockets support up to 8 GB.
*Due to the chipset spec, G41T-M7 runs at DDR3 1066/800 MHz memory
speed
Introducing the Motherboard
Onboard LAN (optional)
• Supports PCI ExpressTM 1.1
• Integrated 10/100/1000 transceiver
• Wake-On-LAN (WOL) and remote wake-up support
• Supports PCI ExpressTM 1.1
• Integrated 10/100 transceiver
• Wake-On-LAN (WOL) and remote wake-up support
Audio (optional)
This motherboard may support either of the following Audio chipsets:
• 5.1 Channel High Definition Audio Codec
• Exceeds Microsoft Windows Logo Program (WLP) Requirements
• ADCs support 44.1K/48K/88.2K/96K/192KHz sample rate
• Power Support: Digital: 3.3V; Analog: 5.0V
Expansion Options
The motherboard comes with the following expansion options:
• One PCI Express x16 slots for Graphic Interface
• One PCI Express x1 slot
• One 32-bit PCI v2.3 compliant slot
• One IDE connector that supports two IDE devices
• Two 7-pin SATA connectors
3
Integrated I/O
The motherboard has a full set of I/O ports and connectors:
• Two PS/2 ports for mouse and keyboard
• One VGA port
• Four USB ports
• One LAN port
• Audio jacks for microphone, line-in and line-out
Introducing the Motherboard
4
BIOS Firmware
This motherboard uses AMI BIOS that enables users to configure many system
features including the following:
• Power management
• Wake-up alarms
• CPU parameters
• CPU and memory timing
The firmware can also be used to set parameters for different processor clock
speeds.
1.Some hardware specifications and software items are subject to change
without prior notice.
2.Due to chipset limitation, we recommend that motherboard be operated in the ambiance between 0 and 50°C.
Introducing the Motherboard
Specifications
5
CPU
Chipset
Memory
Expansion
Slots
Storage
Audio
Giga LAN
Rear Panel I/O
• LGA775 socket for Intel Core 2 Quad*/Intel® CoreTM 2 Duo/
Pentium® Dual-Core/Celeron® Dual-Core/Celeron® 400 series processors
• Intel G41 & ICH7 Express Chipset
North Bridge: Intel G41 South Bridge: ICH7
• Dual-channel DDR3 memory architecture
• 2 x 240-pin DDR3 DIMM sockets support up to 8 GB
• Supports DDR3 1066/800 DDR3 SDRAM
*(Due to the chipset spec, G41T-M7 runs at DDR3 1066/
800 MHz memory speed)
• 1 x PCI Express x16 slot
• 1 x PCI Express x1 slot
• 1 x PCI slot
• Supported by Intel ICH7 Express Chipset
• 2 x Serial ATA 3.0 Gb/s device
• 1 x Ultra DMA100/66 devices
• VIA VT1705 6-Ch High Definition audio CODEC
• RealTek 8103 10/100 Fast Ethernet NIC (Gigabit LAN optional)
• 1 x PS/2 keyboard & PS/2 mouse connector
• 1 x VGA port
• 4 x USB ports
• 1 x RJ45 LAN connector
• 1 x Audio port (Line in, microphone in, line out)
*
Internal I/O
Connectors &
Headers
System BIOS
Form Factor • Micro A TX Size, 225mm x 170mm
• 1 x 24-pin ATX Power Supply connector
• 1 x 4-pin CPU_FAN connector
• 1 x IDE connector
• 2 x USB 2.0 headers
• 1 x CLR_CMOS header
• 1 x Speaker header
• 1 x Front panel audio header
• 1 x Front panel switch/LED header
• 1 x Parallel port header(LPT)
• AMI BIOS with 8Mb SPI ROM
• Supports Plug and Play, STR(S3)/STD(S4), Hardware monitor, Multi Boot, DMI
• Supports ACPI revision 1.0 specification
•
2 x SATA 3Gb/s connectors
• 1 x SPDIF out header
• 1 x Serial port header (COM)
• 1 x Chassis intrusion header
Introducing the Motherboard
6
Q
/
Motherboard Components
Table of Motherboard Components
LABEL COMPONENTS
1. CPU Socket
2. CPU_FAN CPU cooling fan connector
3. DDR3_1~2 240-pin DDR3 SDRAM slots
4. ATX_POWER Standard 24-pin ATX power connector
5. IDE Primary IDE channel
6. SPK Speaker header
7. CLR_CMOS Clear CMOS jumper
8. SATA1~2 Serial ATA connectors
9. F_USB1~2 Front panel USB headers
10. USBPWR_F Front panel USB power select jumper
11. LPT Onboard parallel port header
12. SPDIFO SPDIF out header
13. F_PANEL Front panel switch/LED header
14. F_AUDIO Front panel audio header
15. PCI 32-bit add-on card slot
16. COM Onboard serial port header
17. PCIE PCI Express x 1 slot
18. PCIEX16 PCI Express x16 graphics card slot
19. USBPWR_R Rear Panel USB/PS2 Power Select jumper
20. ATX12V 4-pin +12V power connector
This concludes Chapter 1. The next chapter explains how to install the motherboard.
LGA775 socket for Intel Core 2
Pentium® Dual-Core/Celeron® Dual-Core/Celeron® 400 series
processors
uad/Intel® CoreTM 2 Duo
Introducing the Motherboard
Chapter 2
Installing the Motherboard
Safety Precautions
• Follow these safety precautions when installing the motherboard
• Wear a grounding strap attached to a grounded device to avoid damage from static electricity
• Discharge static electricity by touching the metal case of a safely
grounded object before working on the motherboard
• Leave components in the static-proof bags they came in
• Hold all circuit boards by the edges. Do not bend circuit boards
Choosing a Computer Case
There are many types of computer cases on the market. The motherboard complies
with the specifications for the Micro ATX system case. First, some features on the
motherboard are implemented by cabling connectors on the motherboard to indicators and switches on the system case. Make sure that your case supports all the
features required. Secondly, this motherboard supports two enhanced IDE drives.
Make sure that your case has sufficient power and space for all drives that you intend
to install.
Most cases have a choice of I/O templates in the rear panel. Make sure that the I/O
template in the case matches the I/O ports installed on the rear edge of the
motherboard.
This motherboard carries a Micro ATX form factor of 225 x 170 mm. Choose a case
that accommodates this form factor.
7
Installing the Motherboard in a Case
Refer to the following illustration and instructions for installing the motherboard in
a case.
Most system cases have mounting brackets installed in the case, which correspond
the holes in the motherboard. Place the motherboard over the mounting brackets
and secure the motherboard onto the mounting brackets with screws.
Ensure that your case has an I/O template that supports the I/O ports and expansion
slots on your motherboard.
Installing the Motherboard
8
Do not over-tighten the screws as this can stress the motherboard.
Checking Jumper Settings
This section explains how to set jumpers for correct configuration of the motherboard.
Setting Jumpers
Use the motherboard jumpers to set system configuration options. Jumpers with
more than one pin are numbered. When setting the jumpers, ensure that the jumper
caps are placed on the correct pins.
The illustrations show a 2-pin jumper.
When the jumper cap is placed on both
pins, the jumper is SHORT. If you remove the jumper cap, or place the jumper
cap on just one pin, the jumper is OPEN.
This illustration shows a 3-pin jumper.
Pins 1 and 2 are SHORT.
SHORT OPEN
Installing the Motherboard
Checking Jumper Settings
The following illustration shows the location of the motherboard jumpers. Pin 1 is
labeled.
Jumper Settings
Jumper Type Description Setting (default)
1-2: NORMAL
CLR_CMOS
3-pin
CLEAR CMOS
2-3: CLEAR
Before clearing the
CMOS, make sure to
turn the system off.
1
CLR_CMOS
9
USBPWR_R
1.
2.
3.
Rear USB/PS2
3-pin
Power Select
Jumper
Front Panel
3-pinUSBPWR_F
USB Power
Select Jumper
To avoid the system instability after clearing CMOS, we recommend
users to enter the main BIOS setting page to “Load Default Settings”
and then “Save & Exit Setup”.
Make sure the power supply provides enough 5VSB voltage before selecting the 5VSB function.
It is required that users place the USBPWR_F1~2 & USBPWR_R1 cap
onto 2-3 pin rather than 1-2 pin as default if you want to wake up the
computer by USB/PS2 KB/Mouse.
1-2: VCC
2-3: 5VSB
1-2: VCC
2-3: 5VSB
1
USBPWR_R
1
USBPWR_F
Installing the Motherboard
10
Installing Hardware
Installing the Processor
Caution: When installing a CPU heatsink and cooling fan make sure
that you DO NOT scratch the motherboard or any of the surfacemount resistors with the clip of the cooling fan. If the clip of the cooling
fan scrapes across the motherboard, you may cause serious damage
to the motherboard or its components.
On most motherboards, there are small surface-mount resistors near
the processor socket, which may be damaged if the cooling fan is
carelessly installed.
Avoid using cooling fans with sharp edges on the fan casing and the
clips. Also, install the cooling fan in a well-lit work area so that you
can clearly see the motherboard and processor socket.
Before installing the Processor
This motherboard automatically determines the CPU clock frequency and system bus
frequency for the processor. You may be able to change the settings in the system
Setup Utility. We strongly recommend that you do not over-clock processors or
other components to run faster than their rated speed.
Warning:
1. Over-clocking components can adversely affect the reliability of the
system and introduce errors into your system. Over-clocking can permanently damage the motherboard by generating excess heat in components that are run beyond the rated limits.
2. Always remove the AC power by unplugging the power cord from
the power outlet before installing or removing the motherboard or
other hardware components.
This motherboard has an LGA775 socket. When choosing a processor, consider the
performance requirements of the system. Performance is based on the processor
design, the clock speed and system bus frequency of the processor, and the quantity
of internal cache memory and external cache memory.
Fail-Safe Procedures for Over-clocking
When end-users encounter failure after attempting over-clocking, please take the
following steps to recover from it.
1. Shut down the computer.
2. Press and hold the “Page Up Key (PgUp)” of the keyboard, and then boot the PC
up.
3. Two seconds after the PC boots up, release the “Page Up Key (PgUp)”.
4. The BIOS returns to the default setting by itself.
Installing the Motherboard
CPU Installation Procedure
The following illustration shows CPU installation components.
A. Read and follow the instructions shown
on the sticker on the CPU cap.
B. Unload the cap
· Use thumb & forefinger to hold the
lifting tab of the cap.
· Lift the cap up and remove the cap
completely from the socket.
C. Open the load plate
· Use thumb & forefinger to hold the
hook of the lever, pushing down and
pulling aside unlock it.
· Lift up the lever.
· Use thumb to open the load plate. Be
careful not to touch the contacts.
D. Install the CPU on the socket
· Orientate CPU package to the socket.
Make sure you match triangle marker
to pin 1 location.
E. Close the load plate
· Slightly push down the load plate onto
the tongue side, and hook the lever.
· CPU is locked completely.
11
F. Apply thermal grease on top of the CPU.
G. Fasten the cooling fan supporting base
onto the CPU socket on the motherboard.
H. Make sure the CPU fan is plugged to the
CPU fan connector. Please refer to the
CPU cooling fan user’s manual for more
detail installation procedure.
1. To achieve better airflow rates and heat dissipation, we suggest
that you use a high quality fan with 3800 rpm at least. CPU fan and
heatsink installation procedures may vary with the type of CPU fan/
heatsink supplied. The form and size of fan/heatsink may also vary.
2. DO NOT remove the CPU cap from the socket before installing a
CPU.
3. Return Material Authorization (RMA) requests will be accepted
only if the motherboard comes with the cap on the LGA775 socket.
Installing the Motherboard
12
Installing Memory Modules
This motherboard accommodates two memory modules. It runs at dual-channel
DDR3 1066/800MHz memory speed. The total memory capacity is 8 GB.
DDR3 SDRAM memory module table
Memory module Memory Bus
DDR3 800 400 MHz
DDR3 1066 533 MHz
You must install at least one module in any of the two slots.
Do not remove any memory module from its antistatic packaging until
you are ready to install it on the motherboard. Handle the modules
only by their edges. Do not touch the components or metal parts.
Always wear a grounding strap when you handle the modules.
Installation Procedure
Refer to the following to install the memory modules.
1 This motherboard supports unbuffered DDR3 SDRAM .
2 Push the latches on each side of the DIMM slot down.
3 Align the memory module with the slot. The DIMM slots are keyed with
notches and the DIMMs are keyed with cutouts so that they can only be
installed correctly.
4 Check that the cutouts on the DIMM module edge connector match the
notches in the DIMM slot.
5 Install the DIMM module into the slot and press it firmly down until it
seats correctly. The slot latches are levered upwards and latch on to
the edges of the DIMM.
6 Install any remaining DIMM modules.
Installing the Motherboard
Expansion Slots
Installing Add-on Cards
The slots on this motherboard are designed to hold expansion cards and connect
them to the system bus. Expansion slots are a means of adding or enhancing the
motherboard’s features and capabilities. With these efficient facilities, you can increase the motherboard’s capabilities by adding hardware that performs tasks that are
not part of the basic system.
13
PCIEX16 Slot
PCIE Slot
PCI Slot
The PCI Express slot is used to install an external PCI Express
graphics card that is fully compliant to the PCI Express Gen 1.
The PCI Express x1 slot is fully compliant to the PCI Express Base
Specification revision 1.0.
This motherboard is equipped with one standard PCI slot. PCI stands
for Peripheral Component Interconnect and is a bus standard for
expansion cards, which for the most part, is a supplement of the
older ISA bus standard. The PCI slot on this board is PCI v2.3
compliant.
Before installing an add-on card, check the documentation for the card
carefully. If the card is not Plug and Play, you may have to manually
configure the card before installation.
Installing the Motherboard
14
Follow these instructions to install an add-on card:
1 Remove a blanking plate from the system case corresponding to the
slot you are going to use.
2 Install the edge connector of the add-on card into the expansion slot.
Ensure that the edge connector is correctly seated in the slot.
3 Secure the metal bracket of the card to the system case with a screw.
1. For some add-on cards, for example graphics adapters and network
adapters, you have to install drivers and software before you can begin using
the add-on card.
2. The onboard PCI interface does not support 64-bit SCSI cards.
Installing the Motherboard
Connecting Optional Devices
Refer to the following for information on connecting the motherboard’s optional
devices:
SA T A1~2: Serial A T A connectors
These connectors are used to support the new Serial ATA devices for the highest data
transfer rates (3.0 Gb/s), simpler disk drive cabling and easier PC assembly. It eliminates limitations of the current Parallel ATA interface. But maintains register compatibility and software compatibility with Parallel ATA.
15
Pin Signal NamePin Signal Name
1 Ground 2 TX+
3 TX- 4 Ground
5 RX- 6 RX+
7 Ground - -
F_AUDIO: Front Panel Audio header for Azalia
This header allows the user to install auxiliary front-oriented microphone and lineout ports for easier access.
Pin Signal Name Pin Signal Name
1 PORT 1L 2 AUD_GND
3 PORT 1R 4 PRESENCE#
5 PORT 2R 6 SENSE1_RETURN
7 SENSE_SEND 8 KEY
9 PORT 2L 10 SENSE2_RETURN
Installing the Motherboard
16
F_USB1~2: Front Panel USB headers
The motherboard has four USB ports installed on the rear edge I/O port array.
Additionally, some computer cases have USB ports at the front of the case. If you
have this kind of case, use auxiliary USB connector to connect the front-mounted
ports to the motherboard.
Pin Signal Name Function
1 USBPWR Front Panel USB Power
2 USBPWR Front Panel USB Power
3 USB_FP_P0- USB Port 0 Negative Signal
4 USB_FP_P1- USB Port 1 Negative Signal
5 USB_FP_P0+ USB Port 0 Positive Signal
6 USB_FP_P1+ USB Port 1 Positive Signal
7 GND Ground
8 GND Ground
9 Key No pin
10 USB_FP_OC0 Overcurrent signal
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or system
hang-up.
SPDIFO: SPDIF out header
This is an optional header that provides an S/PDIF (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
Pin Signal Name Function
1 SPDIF SPDIF digital output
2 +5VA 5V analog Power
3 Key No pin
4 GND Ground
COM: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to
your system.
Pin Signal Name Function
1 DCDB Data Carrier Detect
2 SINB Serial Input
3 SOUTB UART B Serial Output
4 DTRB UART B Data Terminal Ready
5 GND Ground
6 DSRB Data Set Ready
7 RTSB RART B Request to Send
8 CTSB Clear to Send
9 RI Ring Indicator
10 Key No pin
Installing the Motherboard
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