The material in this document is the intellectual property of MICRO-STAR
INTERNATIONAL. We take every care in the preparation of this document, but no
guarantee is given as to the correctness of its contents. Our products are under
continual improvement and we reserve the right to make changes without notice.
Trademarks
All trademarks are the properties of their respective owners.
NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or trade-
marks of NVIDIA Corporation in the United States and/or other countries.
AMD, Athlon™ , Athlon™ XP, Thoroughbred™, and Duron™ are registered trademarks of AMD Corporation.
Intel® and Pentium® are registered trademarks of Intel Corporation.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Windows® 95/98/2000/NT/XP are registered trademarks of Microsoft Corporation.
Netware® is a registered trademark of Novell, Inc.
Award® is a registered trademark of Phoenix Technologies Ltd.
AMI® is a registered trademark of American Megatrends Inc.
Revision History
RevisionRevision HistoryDate
V1.0First release for PCB 1.XMarch 2008
Technical Support
If a problem arises with your system and no solution can be obtained from the user’ s
manual, please contact your place of purchase or local distributor. Alternatively,
please try the following help resources for further guidance.
Visit the MSI website for FAQ, technical guide, BIOS updates, driver updates,
and other information: http://global.msi.com.tw/index.php?
4.Lay this equipment on a reliable flat surface before setting it up.
5.The openings on the enclosure are for air convection hence protects the equipment from overheating. DO NOT COVER THE OPENINGS.
6.Make sure the voltage of the power source and adjust properly 110/220V before connecting the equipment to the power inlet.
7.Place the power cord such a way that people can not step on it. Do not place
anything over the power cord.
8.Always Unplug the Power Cord before inserting any add-on card or module.
9.All cautions and warnings on the equipment should be noted.
10. Never pour any liquid into the opening that could damage or cause electrical
shock.
11. If any of the following situations arises, get the equipment checked by a service
personnel:
† The power cord or plug is damaged.
† Liquid has penetrated into the equipment.
† The equipment has been exposed to moisture.
† The equipment has not work well or you can not get it work according to
User’s Manual.
† The equipment has dropped and damaged.
† The equipment has obvious sign of breakage.
12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT UNCONDITIONED, STORAGE TEMPERATURE ABOVE 600 C (1400F), IT MAY DAMAGE THE EQUIPMENT.
CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.
iii
FCC-B Radio Frequency Interference Statement
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 measures listed
below.
† Reorient or relocate the receiving antenna.
† Increase the separation between the equipment and 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/television 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.
Notice 2
Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.
VOIR LA NOTICE D’ INSTALLATION AVANT DE RACCORDER AU RESEAU.
Micro-Star International
MS-7375
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
iv
WEEE (Waste Electrical and Electronic Equipment) Statement
User Profile........................................................................................................D-11
ix
Getting Started
Chapter 1
Getting Started
Thank you for choosing the K9N2 Diamond Series (MS7375 v1.X) ATX mainboard. The K9N2 Diamond Series
mainboards are based onNVIDIA® nForce780a SLI
single chipset for optimal system efficiency. Designed
to fit the advanced AMD® Phenom/ Athlon/ Sempron
series in Socket AM2/ AM2+, the K9N2 Diamond Series
deliver a high performance and professional desktop
platform solution.
1-1
MS-7375 Mainboard
Mainboard Specifications
Processor Support
- AMD® Phenom/ Athlon/ Sempron series processors in AM2/ AM2+
package
- Supports 4 pin CPU Fan Pin-Header with Fan Speed Control
(For the latest information about CPU, please visit
http://global.msi.com.tw/index.php?func=cpuform)
Supported FSB
- AM2 CPU supports Hyper Transport 1.0/ 2.0
- AM2+ CPU supports Hyper Transport 3.0
Chipset
- NVIDIA® nForce 780a SLI single chipset
Memory Support
- DDR2 1066/ 800/ 667 DRAM (8GB Max)
- 4 DDR2 DIMMs (240pin / 1.8V)
(For more information on compatible components, please visit
a. support 3-Way SLI, these three PCIE x16 lanes will configure to
x16/ x8/ x8
b. if you intend to install two expansion cards, please install one
into the mazarine slot and one into the first bule slot, these
three PCIE x16 lanes will configure to x16/ x16/ x0 .
- 1 PCI Express x 1 slot
- 2 PCI slots
Form Factor
- ATX (30.5cm X 24.4 cm)
Mounting
- 9 mounting holes
1-3
MS-7375 Mainboard
PCI2
PCI1
PCI_E1
PCI_E3
PCI_E4
PCI_E2
FDD 1
JUSB1
JMB363
RTL8211BL
SYSFAN3IDE1ATX1
Mainboard Layout
Top : mouse
Bottom:
keyboard
Top: DVI-D port
Bottom:
1394 port
Top: LAN Jack
Bottom: USB ports
Top: LAN Jack
Bottom: USB ports
JPW1
e-SATA ports
SYSFAN1
CPUFAN
RTL8111C
nFroce
BATT
+
SYSFAN2
IDE 2
J1394_1
200
POWER CLR_CMOS
RESET
JFP1 JFP2
K9N2 Diamond Series (MS-7375 v1.X)
ATX Mainboard
VIA
VT6308P
DIMM1
nFroce
780a SLI
JCI1
I/O
Chip
DIMM3
DIMM2
DIMM4
SATA6
SATA3/4
SATA5
SATA1/2
JTPM1
JCOM1
JUS B2
JUSB3
SYSFAN4
1-4
Packing Checklist
Getting Started
MSI motherboard
Power Cable
Floppy Cable
MSI Driver/Utility CD
SATA Cable
X-Fi Xtreme Audio Card
(optional)
3-Way SLI bridge cables
(1 long, 2 short)
IDE Cable
1394+USB Bracket
(Optional)
DVI-D to HDMI
connector
* The pictures are for reference only and may vary from the packing contents of the
product you purchased.
Back IO Shield
User’ s Guide
1-5
Hardware Setup
Chapter 2
Hardware Setup
This chapter provides you with the information about
hardware setup procedures. While doing the installation,
be careful in holding the components and follow the
installation procedures. For some components, if you
install in the wrong orientation, the components will not
work properly.
Use a grounded wrist strap before handling computer
components. Static electricity may damage the
components.
2-1
MS-7375 Mainboard
Quick Components Guide
Back Panel
I/O, p.2-10
PCI Express
slots, p.2-18
PCI Slots,
p.2-24
SYSFAN2,
p.2-13
JPW1, p.2-8
CPU, p.2-3
CPUFAN, p.2-13
DDR2 DIMMs,
p.2-6
IDE1, p.2-11
ATX1, p.2-8
SYSFAN3,
p.2-13
SATA, p.2-12
JTPM1, p.2-15
JUSB1~3, p.2-14
JCOM1, p.2-13
JCI1, p.2-14
2-2
IDE2, p.2-11
SYSFAN1, p.2-13
JFP1, p.2-16
J1394_1, p.2-15
POWER/RESET/CLR_CMOS, p.2-17
JFP2, p.2-16
SYSFAN4, p.2-13
FDD1, p.2-12
Hardware Setup
CPU (Central Processing Unit)
The mainboard supports AMD® Phenom/ Athlon/ Sempron processors in Socket
AM2/ AM2+. The Socket AM2/ AM2+ offer a easy CPU installation. When you are
installing the CPU, make sure the CPU has a heat sink and a cooling fanattached on the top to prevent overheating. If you do not have the heat sink and
cooling fan, contact your dealer to purchase and install them before turning on the
computer.
For the latest information about CPU, please visit http://global.msi.com.tw/index.
php?func=cpuform
Important
Overheating
Overheating will seriously damage the CPU and system. Always make sure
the cooling fan can work properly to protect the CPU from overheating. Make
sure that you apply an even layer of thermal paste (or thermal tape) between
the CPU and the heatsink to enhance heat dissipation.
Replacing the CPU
While replacing the CPU, always turn off the ATX power supply or unplug the
power supply’s power cord from the grounded outlet first to ensure the safety
of CPU.
Overclocking
This mainboard is designed to support overclocking. However, please make
sure your components are able to tolerate such abnormal setting, while
doing overclocking. Any attempt to operate beyond product specifications is
not recommended. We do not guarantee the damages or risks caused
by inadequate operation or beyond product specifications.
2-3
MS-7375 Mainboard
Open the lever
Gold arrow
Gold arrow
Gold arrow
Correct CPU
O
Incorrect CPU
the lever
CPU Installation Procedures for Socket AM2/ AM2+
1.Please turn off the power and
unplug the power cord before
installing the CPU.
Sliding
2.Pull the lever sideways away
from the socket. Make sure to
raise the lever up to a 90-degree angle.
3.Look for the gold arrow on the
CPU. The gold arrow should point
as shown in the picture. The CPU
can only fit in the correct
orientation.Lower the CPU down
onto the socket.
the plate
90 degree
4.If the CPU is correctly installed,
the pins should be completely
embedded into the socket and
can not be seen. Please note
that any violation of the correct
installation procedures may
cause permanent damages to
your mainboard.
5. Press the CPU down firmly into
the socket and close the lever.
As the CPU is likely to move while
the lever is being closed, always close the lever with your
fingers pressing tightly on top of
the CPU to make sure the CPU is
properly and completely embedded into the socket.
2-4
Press down
the CPU
placement
placement
Close
Hardware Setup
Installing CPU Cooler Set
When you are installing the CPU, make sure the CPU has a heat sink and a
cooling fan attached on the top to prevent overheating. If you do not have the
heat sink and cooling fan, contact your dealer to purchase and install them before
turning on the computer.
Important
1. Read the CPU status in BIOS (Chapter 3).
2. Mainboard photos shown in this section are for demonstration of the CPU/
cooler installation only. The appearance of your mainboard may vary depending on the model you purchase.
1.Position the cooling set onto the retention mechanism.
Hook one end of the clip to hook
first.
3.Fasten down the lever.
2. Then press down the other end of
the clip to fasten the cooling set on
the top of the retention mechanism.
Locate the Fix Lever and lift up it .
Fixed Lever
4.Attach the CPU Fan cable to the CPU
fan connector on the mainboard.
2-5
MS-7375 Mainboard
1
2
Installed
Memory
These DIMM slots are used for installing memory modules.
For more information on compatible components, please visit http://global.msi.com.
tw/index.php?func=testreport
DDR2
240-pin, 1.8V
64x2=128 pin56x2=112 pin
Dual-Channel Memory Population Rules
In Dual-Channel mode, the memory modules can transmit and receive data with two
data bus lines simultaneously. Enabling Dual-Channel mode can enhance the system
performance. The following illustrations explain the population rules for Dual-Channel
mode.
DIMM1
DIMM2
DIMM3
DIMM4
DIMM1
DIMM2
DIMM3
DIMM4
Empty
Important
-DDR2 memory modules are not interchangeable with DDR and the DDR2
standard is not backwards compatible. You should always install DDR2
memory modules in the DDR2 DIMM slots.
-In Dual-Channel mode, make sure that you install memory modules of thesame type and density in different channel DIMM slots.
-To enable successful system boot-up, always insert the memory modules
into the DIMM1 first.
- Due to the chipset resource deployment, the system density will only be
detected up to 7+GB (not full 8GB) when each DIMM is installed with a 2GB
memory module.
2-6
Hardware Setup
Installing Memory Modules
1. The memory module has only one notch on the center and will only fit in the right
orientation.
2. Insert the memory module vertically into the DIMM slot. Then push it in until the
golden finger on the memory module is deeply inserted in the DIMM slot. The plastic
clip at each side of the DIMM slot will automatically close when the memory module
is properly seated.
Important
You can barely see the golden finger if the module is properly inserted in the
DIMM slot.
3. Manually check if the memory module has been locked in place by the DIMM slot
clips at the sides.
Volt
Notch
2-7
MS-7375 Mainboard
Power Supply
ATX 24-Pin Power Connector: ATX1
This connector allows you to connect an ATX 24-pin power supply.
To connect the ATX 24-pin power supply, make sure the plug of the
power supply is inserted in the proper orientation and the pins are
aligned. Then push down the power supply firmly into the connector.
You may use the 20-pin ATX power supply as you like. If you’d like
to use the 20-pin ATX power supply, please plug your power supply along with pin 1 & pin 13 (refer to the image at the right hand).
There is also a foolproof design on pin 11, 12, 23 & 24 to avoid
wrong installation.
This JPW1 power connector is used to provide power to the CPU.
Pin Definition
PIN SIGNAL
1 GND
2 GND
3 GND
4 GND
PIN SIGNAL
5 +12V
6 +12V
7 +12V
8 +12V
2-8
85
4
JPW1
1
Hardware Setup
Important
1. Make sure that all the connectors are connected to proper ATX power supplies to ensure stable operation of the mainboard.
2. Power supply of 450 watts (and above) is highly recommended for system
stability.
Important Notification about Power Issue
NForce chipset is very sensitive to ESD (Electrostatic Discharge), therefore this
issue mostly happens while the users intensively swap memory modules under S5
(power-off) states, and the power code is plugged while installing modules. Due to
several pins are very sensitive to ESD, so this kind of memory-replacement actions
might cause system chipset unable to boot. Please follow the following solution to
avoid this situation.
Unplug the AC power cable (shown in figure 1) or unplug all power connectors on
the mianboard (shown in figure 2) before the 1st installation or during system upgrade procedure.
Unplug the AC power cable
Figure 1:
Figure 2: Unplug all the power connectors
2-9
MS-7375 Mainboard
Back Panel
Mouse
Keyboard
DVI-D Port
1394 Port
LAN
USB Port
LAN
ESATA Port
USB Port
Mouse/Keyboard
The standard PS/2® mouse/keyboard DIN connector is for a PS/2® mouse/keyboard.
DVI-D Port
The DVI-D (Digital Visual Interface-Digital) connector allows you to connect a LCD
monitor. It provides a high-speed digital interconnection between the computer and
its display device. To connect an LCD monitor, simply plug your monitor cable into the
DVI connector, and make sure that the other end of the cable is properly connected
to your monitor (refer to your monitor manual for more information.)
1394 Port
The IEEE1394 port on the back panel provides connection to IEEE1394 devices.
LAN
The standard RJ-45 LAN jack is for connection to
Green/ OrangeYellow
the Local Area Network (LAN). You can connect a
network cable to it.
LED ColorLED State condition
OffLAN link is not established.
Left YellowOn (steady state)LAN link is established.
On (brighter & pulsing)The computer is communicating with another computer on the LAN.
GreenOff10 Mbit/sec data rate is selected.
RightOn100 Mbit/sec data rate is selected.
OrangeOn1000 Mbit/sec data rate is selected.
USB Port
The USB (Universal Serial Bus) port is for attaching USB devices such as keyboard,
mouse, or other USB-compatible devices.
ESATA Port
This ESATA (External-Serial ATA) port is used to connect the external SATA device.
You can also use the optional external SATA cable to connect SATA device and
ESATA port.
2-10
Hardware Setup
Connectors
IDE Connector: IDE1 / IDE2
This connector supports IDE hard disk drives, optical disk drives and other IDE devices.
IDE1
IDE2
IDE1 (Primary IDE Connector)
The first hard drive should always be connected to IDE1. IDE1 can connect a Master
and a Slave drive.
IDE2 (Secondary IDE Connector)
IDE2 can also connect a Master and a Slave drive.
Important
If you install two IDE devices on the same cable, you must configure the
drives separately to master / slave mode by setting jumpers. Refer to IDE
device’s documentation supplied by the vendors for jumper setting
instructions.
2-11
MS-7375 Mainboard
Floppy Disk Drive Connector: FDD1
This connector supports 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB floppy disk drive.
FDD1
Serial ATA Connector: SATA1~6
This connector is a high-speed Serial ATA interface port. Each connector can connect to one Serial ATA device.
SATA6
SATA5
SATA3/4
SATA1/2
Important
1. SATA5 & SATA6 support AHCI mode only.
2. Please do not fold the Serial ATA cable into 90-degree angle. Otherwise,
data loss may occur during transmission.
2-12
Hardware Setup
Fan Power Connectors: CPUFAN, SYSFAN1/ 2/ 3/ 4
The fan power connectors support system cooling fan with +12V. When connecting
the wire to the connectors, always note that the red wire is the positive and should
be connected to the +12V; the black wire is Ground and should be connected to GND.
If the mainboard has a System Hardware Monitor chipset on-board, you must use a
specially designed fan with speed sensor to take advantage of the CPU fan control.
GND
+12V
SENSOR
CONTROL
CPUFAN
+12V
Sensor
SYSFAN1/2
GND
GND
+12V
NC
SYSFAN3
+12V
NC
SYSFAN4
GND
Important
1.Please refer to the recommended CPU fans at processor’s official website
or consult the vendors for proper CPU cooling fan.
2.CPUFAN supports fan control. You can install Dual Core Center utility
that will automatically control the CPU fan speed according to the actual
CPU temperature.
3. Fan/heatsink with 3 or 4 pins are both available for CPUFAN.
Serial Port Connector: JCOM1
This connector is a 16550A high speed communication port that sends/receives 16
bytes FIFOs. You can attach a serial device.
Pin Definition
PINSIGNALDESCRIPTION
1DCDData Carry Detect
21
9
JCOM1
2SINSerial In or Receive Data
3SOUTSerial Out or Transmit Data
4DTRData Terminal Ready
5GNDGround
6DSRData Set Ready
7RTSRequest To Send
8CTSClear To Send
9RIRing Indicate
2-13
MS-7375 Mainboard
Front USB Connector: JUSB1/ JUSB2/ JUSB3
This connector, compliant with Intel® I/O Connectivity Design Guide, is ideal for connecting high-speed USB interface peripherals such as USB HDD, digital cameras,
MP3 players, printers, modems and the like.
910
12
JUSB1 / 2/ 3
PINSIGNALPINSIGNAL
1VCC2VCC
3USB0-4USB15USB0+6USB1+
7GND8GND
9Key (no pin)10NC
Pin Definition
USB 2.0 Bracket
Important
Note that the pins of VCC and GND must be connected correctly to avoid
possible damage.
Chassis Intrusion Connector: JCI1
This connector connects to the chassis intrusion switch cable. If the chassis is
opened, the chassis intrusion mechanism will be activated. The system will record
this status and show a warning message on the screen. To clear the warning, you
must enter the BIOS utility and clear the record.
1
CINTRU
2-14
GND
JCI1
Hardware Setup
IEEE1394 Connector: J1394_1
This connector allows you to connect the IEEE1394 device via an optional IEEE1394
bracket.
Pin Definition
PINSIGNALPINSIGNAL
2
1
J1394_1
109
1TPA+2TPA3Ground4Ground
5TPB+6TPB7Cable power8Cable power
9Key (no pin)10Ground
IEEE1394 Bracket
TPM Module Connector: JTPM1
This connector connects to a TPM (Trusted Platform Module) module (optional). Please
refer to the TPM security platform manual for more details and usages.
2
1
14
13
JTPM1
Pin SignalDescriptionPin SignalDescription
1LCLKLPC clock23V_STB3V standby power
3LRST#LPC reset4VCC33.3V power
5LAD0LPC address & data pin06SIRQSerial IRQ
7LAD1LPC address & data pin18VCC55V power
9LAD2LPC address & data pin210KEYNo pin
11LAD3LPC address & data pin312GNDGround
13LFRAME# LPC Frame14GNDGround
2-15
MS-7375 Mainboard
Front Panel Connectors: JFP1, JFP2
These connectors are for electrical connection to the front panel switches and LEDs.
The JFP1 is compliant with Intel® Front Panel I/O Connectivity Design Guide.
Power
Power
Switch
LED
+
-
-
+
-
Reset
Switch
10
9
2
JFP1
1
+
HDD
LED
JFP1 Pin Definition
PINSIGNALDESCRIPTION
1HD_LED +Hard disk LED pull-up
2FP PWR/SLPMSG LED pull-up
3HD_LED -Hard disk active LED
4FP PWR/SLPMSG LED pull-up
5RST_SW -Reset Switch low reference pull-down to GND
6PWR_SW +Power Switch high reference pull-up
7RST_SW +Reset Switch high reference pull-up
8PWR_SW -Power Switch low reference pull-down to GND
9RSVD_DNUReserved. Do not use.
2-16
Speaker
+
+
-
Power
LED
8
7
JFP2
2
1
JFP2 Pin Definition
PINSIGNALDESCRIPTION
1GNDGround
2SPK-Speaker3SLEDSuspend LED
4BUZ+Buzzer+
5PLEDPower LED
6BUZ-Buzzer7NCNo connection
8SPK+Speaker+
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