ECS A780LM-M, A780LM-M2 User manual 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 2.0
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.
AMD, Phenom, Athlon, Sempron and Duron are registered trademarks of AMD
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
Describes features of the motherboard
Go to
H
page 1
Chapter 2
Installing the Motherboard
Chapter 3
Using BIOS
Chapter 4
Using the Motherboard Soft-
ware
Chapter 5
Setting Up AMD SB700 RAID
Configuration
Chapter 6
Setting Up eJIFFY
Chatper 7
Trouble Shooting
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 AMD SB710 RAID Configuration
Go to
Describes the eJIFFY setting up
Go to
Provides basic troubleshooting tips
Go to
H
H
H
H
H
H
page 7
page 25
page 41
page 45
page 53
page 63
Preface
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Preface i
Chapter 1 1
Introducing the Motherboard 1
Introduction............................................................................................1
Features...................................................................................................2
Specifications.........................................................................................4
Motherboard Components...................................................................5
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/SATA Hard Drive..........18
Connecting I/O Devices......................................................................20
Connecting Case Components...........................................................21
Fr ont Panel Header.................................................................23
Chapter 3
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..............................................................................28
Advanced Chipset Setup.................................................................30
25 25
25
25 25
77
7
77
iv
Integrated Peripherals..................................................................31
Power Management Setup.............................................................32
PCI/PnP Configurations...............................................................34
PC Health Status...........................................................................34
Frequency/Voltage Contr ol...........................................................36
Load Default Settings....................................................................37
Supervisor Password....................................................................37
User Password...............................................................................38
Save & Exit Setup .........................................................................38
Exit Without Saving.......................................................................38
Updating the BIOS.........................................................................39
Chapter 4
Using the Motherboard Software 41
About the Software DVD-ROM/CD-ROM.....................................41
Auto-installing under Windows Vista/7...........................................41
Running Setup...............................................................................42
Manual Installation..........................................................................44
Utility Software Reference................................................................44
Chapter 5
Setting Up AMD SB700 RAID Configuration 45
Setting Up a Bootable RAID Array ...................................................45
Chapter 6
Setting Up eJIFFY 53
Introduction........................................................................................53
Installation and BIOS Setup............................................................54
Entering eJIFFY.........................................................................................57
Features Icons...........................................................................................58
Usage FAQ.................................................................................................59
Chapter 7
T r ouble Shooting 63
Start up problems during assembly.......................................................63
Start up problems after prolong use.................................................64
Maintenance and care tips..................................................................64
Basic Troubleshooting Flowchart...................................................65
41 41
41
41 41
45 45
45
45 45
53 53
53
53 53
63 63
63
63 63
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the A780LM-M motherboard. This motherboard is a high
performance, enhanced function motherboard that supports socket AM3 for AMD
TM
Phenom
sonal desktop markets.
The motherboard incorporates the AMD 760G Northbridge (NB) and SB700
Southbridge (SB) chipsets. The Northbridge supports the HyperTransport
terface
Express x16 slot, intended for Graphics Interface, is fully compliant to the PCI
Express Base Specification Revision 1.1.
The SB700 Southbridge supports two PCI slots which are PCI 2.3 compliant. In
addition, one PCI Express x1 slot is supported, fully compliant to the PCI Express
Base Specification, Revision 1.1. It integrates USB 2.0 interface, supporting up to
eight functional 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 ATA
133/100/66/33 modes. The Southbridge integrates a Serial ATA host controller,
supporting four SATA ports with maximum transfer rate up to 3.0 Gb/s each. It
provides AMD SATA RAID configuration with RAID 0, 1 and 10 modes supported.
There is an advanced full set of I/O ports in the rear panel, including PS/2 mouse and
keyboard connectors, one VGA port, one optional DVI port, four USB ports, one
LAN port and audio jacks for microphone, line-in and line-out.
II processor/Athlon II/Sempron processors for high-end business or per-
TM
. It supports two DDR3 slots with maximum memory size of 8 GB. One PCI
3.0 in-
1
Introducing the Motherboard
2
Feature
Processor
This motherboard uses a Socket AM3 that carries the following features:
• Accommodates socket AM3 for AMD Phenom
Sempron processors
• Supports HyperTransportTM (HT) 3.0 interface speeds
HyperTransportTM Technology is a point-to-point link between two devices, it
enables integrated circuits to exchange information at much higher speeds than
currently available interconnect technologies.
This board supports CPU up to 95W TDP only; you can refer to AMD
website to check your CPU.
TM
II processor/Athlon II/
Chipset
The AMD 760G Northbridge (NB) and SB700 Southbridge (SB) chipsets are
based on an innovative and scalable architecture with proven reliability and
performance.
AMD 760G
(NB)
• One x4 A-Link Express II interface (PCI Express 1.1
compliant) for connection to an AMD Southbridge
• Supports one PCI Express x16 for Graphics Interface,
fully compliant to the PCI Express Base Specification
revision 1.1
• Fully supports ACPI states S0, S1,S2, S3, S4, and S5
• Single chip solution in 80nm, 1.2 V CMOS technology
SB700 (SB)
• Compliant with PCI 2.3 specification at 33 MHz
• Supports four Serial ATA devices which speeds up to
3.0 Gb/s
• Integrated USB 2.0 Host Controller supporting up to eight
USB 2.0 ports
• Integrated IDE controller supports Ultra A TA 133/100/66/
33 modes
• Supports integrated RAID0, RAID1, and RAID 10 (requires use of 4 or more SATA ports) functionalities
across all 4 ports
Memory
• Supports DDR3 1333/1066 DDR SDRAM with dual-channel architecture
• Accommodates two unbuffered DIMMs
• Up to 4 GB per DIMM with maximum memory size up to 8 GB
Audio
The onboard Audio provides the following features:
• 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
Introducing the Motherboard
Onboard LAN (Optional)
The onboard LAN provides the following features:
• Supports PCI ExpressTM 1.1
• Integrated 10/100/1000 transceiver
• Wake-on-LAN and remote wake-up support
• Supports PCI Express
• Integrated 10/100 transceiver
• Wake-on-LAN and remote wake-up support
TM
1.1
Expansion Options
The motherboard comes with the following expansion options:
• One PCI Express x16 for Graphics Interface
• One PCI Express x1 slot
• Two 32-bit PCI v2.3 compliant slots
• One IDE connector supporting up to two IDE devices
• Four 7-pin SATA connectors
This motherboard supports Ultra DMA bus mastering with transfer rates of
133/100/66/33 MB/s.
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
• One optional DVI port
• Four USB ports
• One LAN port
• 6 channel audio jacks for microphone, line-in and line-out
3
BIOS Firmware
The 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
4
Specifications
CPU
Chipset
Memory
Expansion
Slots
• Socket AM3 for AMD Phenom
processors
• Supports “Hyper-Threading” technology CPU
• AMD 760G & AMD SB700
• Dual-channel DDR3 1333 memory architecture
• 2 x 240-pin DDR3 DIMM sockets support up to 8 GB
• Supports DDR3 1333/1066 DDR3 SDRAM
• 1 x PCI Express x16 slot
• 1 x PCI Express x1 slot
• 2 x PCI slots
TM
II processor/Athlon II/Sempron
Storage
Audio
LAN
Rear Panel I/O
Internal I/O
Connectors &
Headers
• Supported by AMD SB700 Express Chipset
• 4 x Serial ATA 3.0 Gb/s Host Controllers
• Supports RAID 0, 1, and 10
• 2 x Ultra DMA133/100/66 devices
• VIA VT1705 6-ch High Definition audio CODEC
• Realtek 8103EL 10/100 Fast Ethernet Controller (Gigabit LAN
optional)
• 1 x PS/2 keyboard & PS/2 mouse connector
• 4 x USB ports
• 1 x DVI port (optional)
• 1 x VGA port
• 1 x RJ45 LAN connector
• 1 x Audio port (Line in, microphone in and line out)
• 24-pin ATX Power Supply connector,
• 4-pin 12V connector
• 1 x CPU_FAN
• 1 x SYS_FAN
• 4 x SATA 3Gb/s connectors
• 2 x USB 2.0 headers support additional 4 USB ports
• 1 x Front panel header
• 1 x Chassis Intrusion Detect header
• 1 x SPDIF out header
• 1 x Front panel audio header
• 1 x Speaker header
• 1 x parallel port header
• 1 x onboard serial header
System BIOS
Form Factor • Micro A TX Size, 244mm x 210mm
• AMI BIOS with 8Mb SPI ROM
• Supports Plug and Play 1.0A, APM 1.2, Multi Boot, DMI
• Supports ACPI revision 3.0 specification
Introducing the Motherboard
Motherboard Components
5
Introducing the Motherboard
6
Table of Motherboard Components
LABEL COMPONENTS
1. CPU Socket
2. CPU_FAN
3. DDR3_1~2
4. ATX_POWER
5. IDE
6. SATA1~4
7. SPK
8. F_PANEL
9. SYS_FAN
10. CLR_CMOS
11. LPT
12. F_USB1~2
13. USBPWR_R1
14. SPDIFO
15. F_AUDIO
16. PCI1~2
17. CASE
18. PCIEX1
19. PCIEX16
20. USBPWR_F1
21. COM
22. ATX12V
Socket AM3 for AMD Phenom
II/Sempron processors
CPU cooling fan connector
240-pin DDR3 SDRAM slots
Standard 24-pin ATX power connector
Primary IDE connector
Serial ATA connectors
Speaker header
Front panel switch/LED header
System cooling fan connector
Clear CMOS jumper
Parallel port header
Front Panel USB headers
Rear USB/PS2 power select jumper
SPDIF out header
Front panel audio header
32-bit add-on card slots
Chassis detect jumper
PCI Express x1 slot
PCI Express x16 slot for graphics interface
Front panel USB power select jumper
Onboard serial header
4-pin +12V power connector
TM
II/Athlon
This concludes Chapter 1. The next chapter explains how to install the motherboard.
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. Firstly, 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 244 X 210 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
9
Jumper Type Description
CLR_CMOS
USBPWR_F1
USBPWR_R1
1. To avoid the system unstability after clearing CMOS, we recommend
users to enter the main BIOS setting page to “Load Optimal Defaults”
and then “Save Changes and Exit”.
2. Make sure the power supply provides enough 5VSB voltage before
selecting the 5VSB function.
3. It is required that users place the USBPWR_F1 & 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.
3-pin
3-pin
3-pin
Clear CMOS
Front Panel
USB Power
Select Jumper
Rear USB PS/2
Power Select
Jumper
Installing the Motherboard
Setting (default)
1-2: NORMAL
2-3: CLEAR CMOS
Before clearing the
CMOS, make sure to
turn off the system.
1-2: VCC
2-3: 5VSB
1-2: VCC
2-3: 5VSB
1
CLR_CMOS
1
USBPWR_F1
1
USBPWR_R1
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 these settings by making
changes to jumpers on the motherboard, or changing 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 a Socket AM3 processor 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.
Installing the Motherboard
CPU Installation Procedure
The following illustration shows CPU installation components.
1 Install your CPU. Pull up the lever away from
the socket and lift up to 90-degree angle.
2 Locate the CPU cut edge (the corner with
the pin hold noticeably missing). Align and
insert the CPU correctly.
3 Press the lever down and apply thermal
grease on top of the CPU.
4 Put the CPU Fan down on the retention mod-
ule and snap the four retention legs of the
cooling fan into place.
5 Flip the levers over to lock the heat sink in
place and connect the CPU cooling Fan power
cable to the CPUFAN connector. This completes the installation.
To achieve better airflow rates and heat dissipation, we suggest that you
use a high quality fan with 4800 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.
11
Installing the Motherboard
12
Installing Memory Modules
This motherboard accommodates two memory modules. It can support two 240-pin
DDR3 1333/1066. The total memory capacity is 8 GB.
DDR3 SDRAM memory module table
Memory module Memory Bus
DDR3 1066 533 MHz
DDR3 1333 667 MHz
You must install at least one module in any of the two slots. Each module can be
installed with 4 GB of memory.
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 only.
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
PCIEX1 Slot
PCI1~2 Slots
The PCI Express x16 slot is used to install an external PCI Express
graphics card that is fully compliant to the PCI Express Base Specification revision 1.1.
The PCI Express x1 slot is fully compliant to the PCI Express Base
Specification revision 1.1 as well.
This motherboard is equipped with two standard PCI slots. 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 slots on this board are 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.
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.
Installing the Motherboard
Connecting Optional Devices
Refer to the following for information on connecting the motherboard’s optional
devices:
15
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
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.
Function
Installing the Motherboard
16
LPT : Onboard parallel port header
This is a header that can ba used to connect to the printer, scanner or other devices.
Pin Signal Name
1 STROBE
2 PD0
3 PD1
4 PD2
5 PD3
6 PD4
7 PD5
8 PD6
9 PD7
10 AC K
11 BUSK
12 PE
13 SLCT
Pin Signal Name
14 ALF
15 ERROR
16 INIT
17 SLCTIN
18 Ground
19 Ground
20 Ground
21 Ground
22 Ground
23 Ground
24 Ground
25 Ground
26 K ey
F_AUDIO: Front Panel Audio header
This header allows the user to install auxiliary front-oriented microphone and lineout ports for easier access.
Pin Signal Name
Pin Signal Name Function
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
Pin Signal Name
SA T A1~4: 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.
Pin Signal Name
Pin Signal Name
1 Ground 2 TX+
3 TX- 4 Ground
5 RX- 6 RX+
7 Ground - -
Installing the Motherboard
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 p in
4 GND Ground
CASE: Chassis intrusion detect header
This detects if the chassis cover has been removed. This function needs a chassis
equipped with instrusion detection switch and needs to be enabled in BIOS.
Pin 1-2 Function
Short Chassis cover is removed
Open Chassis cover is closed
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
17
Installing the Motherboard
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