MSI K8N SLI-FI User Manual
K8N SLI Series
MS-7185 (v1.X) ATX Mainboard
English/ German/ French Version
G52-M7185X3
i
Copyright Notice
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
Revision Revision History Date
V1.1 First release for European version July 2005
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://www.msi.com.tw/program/service/faq/
faq/esc_faq_list.php
Contact our technical staff at: support@msi.com.tw
ii
Safety Instructions
1. Always read the safety instructions carefully.
2. Keep this User’s Manual for future reference.
3. Keep this equipment away from humidity.
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-7185
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
v
vi
vii
CONTENTS
Copyright Notice...............................................................................................................ii
Trademarks.......................................................................................................................ii
Revision History...............................................................................................................ii
Technical Support............................................................................................................ii
Safety Instructions..........................................................................................................iii
FCC-B Radio Frequency Interference Statement........................................................iv
WEEE (Waste Electrical and Electronic Equipment) Statement....................................v
English........................................................................................................................E-1
Deutsch......................................................................................................................D-1
Français......................................................................................................................F-1
viii
Quick User’s Guide
K8N SLI Series
(MS-7185 v1.X)
ATX Mainboard
English
E-1
MS-7185 ATX Mainboard
E-2
Quick User’s Guide
MS-7185 (v1.X)
Quick User’s Guide
Thank you for purchasing the K8N SLI Series (MS-7185 v1.X), an
excellent ATX mainboard from MSI.
Based on the innovative nVIDIA® nForceTM4 SLI chipset for optimal
system efficiency, the K8N SLI Series mainboards accommodate the
advanced AMD K8 AthlonTM 64 X2 Dual-Core / AthlonTM 64 FX /
AthlonTM 64 processors in Socket 939 and support up to four 144-bit
DDR DIMMs (at 200, 266, 333, and 400 MHz) to provide the maximum
of 4GB memory capacity.
MSI Reminds You...
1. Please note that the companion MSI Driver/Utility CD supports
this mainboard with Windows 2000/XP system drivers ONLY.
2. To create a bootable RAID volume for a Windows 2000
environment, Microsoft’s Windows 2000 Service Pack 4
(SP4) is required. As the end user cannot boot without SP4,
a combination installation CD must be created before
attempting to install the operating system onto the bootable
RAID volume.
To create the combination installation CD, please refer to
the following website:
http://www.microsoft.com/windows2000/downloads/
servicepacks/sp4/HFdeploy.htm
E-3
MS-7185 ATX Mainboard
Mainboard Specifications
CPU
† Supports Socket 939 for AMD K8 AthlonTM 64 X2 Dual-Core / AthlonTM 64 FX /
AthlonTM 64 processors
† Supports up to Athlon64 4200+ or higher CPU
(For the latest information about CPU, please visit http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_cpu_support.php)
Chipset
† nVIDIA nForce4 SLI
- HyperTransport link to AMD K8 AthlonTM 64 X2 Dual-Core / AthlonTM 64 FX /
AthlonTM 64 CPU
- HyperTransport supporting speed up to 1GHz (2000MT/s)
- Supports 2 PCI Express x16/ x1 interface
- Two independent SATA controllers, for four drives
- Dual Ultra ATA 133/100/66 IDE controllers
- Supports high-speed USB2.0 ports
- IEEE802.3 nVIDIA MAC for 1000BASE-T
Main Memory
† Supports dual channel, eight memory banks DDR 266/333/400, using four 184-pin
DDR DIMMs
† Supports a maximum memory size up to 4GB
† Supports 2.5v DDR SDRAM DIMM
(For the updated supporting memory modules, please visit http://www.msi.com
tw/program/products/mainboard/mbd/pro_mbd_trp_list.php.)
.
Slots
† Three 32-bit/33MHz Master PCI Bus slots, including one orange slot which sup-
ports 2 master for MSI special PCI function card (ex. wireless LAN and bluetooth
combo card)
† Two PCI Express x1 slots (PCI Express Bus specification v1.0a compliant)
† Two PCI Express x16 slots support normal or SLI mode by auto detection or
software configuration (PCI Express Bus specification v1.0a compliant)
SLI mode - Primary PCI _ E slot is compatible with PCI Express x 8
Secondary PCI_E slot is compatible with PCI Express x 8
non-SLI mode - Primary PCI_E slot is compatible with PCI Express x 16
HDD Interface
† Dual IDE controllers on the nVIDIA® nForceTM4 SLI chipset
- Provides IDE HDD/CD-ROM with PIO, Bus Master and Ultra DMA 133/100/66
operation modes
- Can connect up to 4 IDE devices
† Two independent SATA controllers on the nVIDIA® nForceTM4 SLI chipset
- NV RAID supports 4 SATA II ports with up to 300MB/s transfer rate
Secondary PCI_E slot is compatible with PCI Express x 1
E-4
Quick User’s Guide
NV RAID (Software)
† Supports up to 4 SATA and 4 PATA133 Hard drives
-RAID 0 or 1, 0+1, JBOD supported
-RAID function available for PATA133+SATA H/D or 4 SATA H/D drives
Onboard Peripherals
† 1 floppy port supports 1 FDD with 360KB, 720KB, 1.2MB, 1.44MB, and 2.88MB
† 1 PS/2 keyboard port
† 1 PS/2 mouse port
† 1 serial port
† 1 parallel port supports SPP/EPP/ECP mode
† 1 RJ-45 LAN jack (with LEDs)
† 10 USB ports (6 on the front and 4 on the rear)
† 2 IEEE 1394 ports (1 on front and 1 on rear
† 1 Audio jack (5-in-1), coaxial/fiber SPDIF out
† 1 IrDA pinheader
† 1 D-Bracket2 pinheader
† 1 CD-In pinheader
Onboard LAN
† nVIDIA MAC for 1000BASE-T
† Marvell PHY 88E1111 10/100/1000 Fast Ethernet
Onboard Audio
† Realtek ALC850 8-channel codec
- 8-ch DA connector with 48 KHz rate
- Compliant with AC97 2.3 specifications
- Meets perfomace requirement for audio on PC 97/2001 system
- Meets Microsoft WHQL / WLP 2.0 audio requirement
Onboard IEEE 1394
† VIA VT6307 IEEE 1394 controller
BIOS
† The mainboard BIOS provides “Plug & Play” BIOS which detects the peripheral
devices and expansion cards of the board automatically
† The mainboard provides a Desktop Management Interface (DMI) function which
records your mainboard specifications
† Supports boot from LAN, USB Device 1.1 & 2.0, and SATA HDD
Dimension
† ATX Form Factor (30.5 cm X 24.5 cm)
Mounting
† 9 mounting holes
E-5
MS-7185 ATX Mainboard
Quick Components Guide
PCIE_PW1,
JPW1, p. E-12
CPUFAN1,
SFAN1, p. E-12
DDR DIMMs, p. E-10
JCI1, p. E-15
I/O Ports,
p. E-14
PCI Express
Slots, p. E-20
J1394_1,
p. E-18
PCI Slots,
p. E-20
JAUD1, p. E-17
JCD1, p. E-15
JDB1, p. E-18
SFAN2, p. E-16
JUSB1/2/3, p. E-19
JFP1, p. E-17
ATX1, p. E-12
JIR1, p. E-17
FDD1, p. E-15
IDE1/2,
p. E-16
NBFAN1,
p. E-16
SATA1/2/
3/4, p. E-15
SW1, p. E-19
JFP2, p. E-17
E-6
Central Processing Unit: CPU
Gold arrow
Gold Arrow
Gold Arrow
Correct CPU placement
O
Incorrect CPU placement
CPU Installation Procedures for Socket 939
1.Please turn off the power and
unplug the power cord before
installing the CPU.
Quick User’s Guide
Open Lever
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.
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.
Sliding
Plate
90 degree
Press down
the CPU
Close the lever
E-7
MS-7185 ATX Mainboard
Installing AMD Athlon64 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.
MSI Reminds You...
Mainboard photos shown in this section are for demonstration of the
cooler installation for Socket 939 CPUs only. The appearance of
your mainboard may vary depending on the model you purchase.
1.Detach the shield off the
backplate’s paster.
2.Turn over the mainboard, and install
the backplate to the proper position.
3.Turn over the mainboard again, and
place the mainboard on the flat
surface. Locate the two screw
holes of the mainboard.
E-8
4.Align the retention mechanism and
the backplate.
Fix the retention mechanism and
the backplate with two screws.
retention mechanism
Quick User’s Guide
5.Position the cooling set onto the
retention mechanism.
Hook one end of the clip to hook
first, and then press down the
other end of the clip to fasten the
cooling set on the top of the
retention mechanism.
6.Locate the Fix Lever, Safety Hook
and the Fixed Bolt.
Lift up the intensive fixed lever.
Safety Hook
7.Fasten down the lever.
8.Make sure the safety hook completely clasps the fixed bolt of the
retention mechanism.
9.Attach the CPU Fan cable to the CPU
fan connector on the mainboard.
Fixed Lever
MSI Reminds You...
While disconnecting the Safety Hook from the fixed bolt, it is necessary to keep an eye on your fingers, because once the Safety Hook
is disconnected from the fixed bolt, the fixed lever will spring back
instantly.
Fixed Bolt
E-9
MS-7185 ATX Mainboard
Memory
The mainboard provides 4 slots for 184-pin DDR DIMM (Double In-Line Memory Module)
modules and supports the memory size up to 4GB. You can install DDR 266/333/400
modules on the DDR DIMM slots (DIMM 1~4).
For the updated supporting memory modules, please visit http://www.msi.com.tw/
program/products/mainboard/mbd/pro_mbd_trp_list.php.
DIMM1~DIMM4
(from left to right)
DIMM Module Combination
Install at least one DIMM module on the slots. Each DIMM slot supports up to a maximum
size of 1GB. Users can install either single- or double-sided modules to meet their
own needs. Users may install memory modules of different type and density on
different-channel DDR DIMMs. However, memory modules of the same type and
density are required while using dual-channel DDR, or instability may happen.
DIMM1 (CH A) DIMM2 (CH B) DIMM3 (CH A)DIMM4 (CH B) Mode
128MB~1GB Single Channel
128MB~1GB Single Channel
128MB~1GB 128MB~1GB Single Channel
128MB~1GB 128MB~1GB Dual Channel
128MB~1GB 128MB~1GB Dual Channel
128MB~1GB 128MB~1GB 128MB~1GB 128MB~1GB Dual Channel
MSI Reminds You...
- The system operates ONLY when the DDR modules are installed in
accordance with the above-mentioned memory population rules.
- In dual-channel mode, make sure that you install memory modules
of the same type and density on DDR DIMMs.
- To enable successful system boot-up, always insert the memory
modules into the Channel A slots (DIMM1 or DIMM3) first.
- This mainboard DO NOT support the memory module installed
with more than 18 pieces of IC (integrated circuit).
- Do not support three memory modules.
E-10
Recommended Memory Combination List
DIMM Slots
Green Green
DIMM1
S
-
D
-
S
D
S
D D
Purple
DIMM2 DIMM3 DIMM4
- -
-
-
-
-
-
S
- - D
S
D
S
D
S
-
D
S
D
-
- -
S
D
Purple
-
-
-
-
-
-
-
D
S
D
Quick User’s Guide
Max Speed
DDR 400
DDR 400
DDR 400
DDR 400
DDR 400
DDR 333
DDR 400
DDR 400
DDR 400
DDR 400
DDR 333
S: Single Side D: Double Side
Installing DDR Modules
1. The DDR DIMM has only one notch on the center of module. The module will
only fit in the right orientation.
2. Insert the DIMM memory module vertically into the DIMM slot. Then push it in
until the golden finger on the memory module is deeply inserted in the socket.
3. The plastic clip at each side of the DIMM slot will automatically close.
Volt
Notch
E-11
MS-7185 ATX Mainboard
Power Supply
The mainboard supports ATX power supply for the power system. Before inserting
the power supply connector, always make sure that all components are installed
properly to ensure that no damage will be caused.
ATX 24-Pin System Power Connector: ATX1
This connector allows you to connect to an ATX power supply. To connect to the ATX
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.
12
24
ATX1
1
13
ATX 4-Pin CPU Power Connector: JPW1
This connector provides 12V power output to the CPUs.
ATX1 Pin Definition
PIN SIGNAL
1 +3.3V
2 +3.3V
3 GND
4 +5V
5 GND
6 +5V
7 GND
8 PWR OK
9 5VSB
10 +12V
11 +12V
12 +3.3V
PIN SIGNAL
13 +3.3V
14 -12V
15 GND
16 PS-ON#
17 GND
18 GND
19 GND
20 3VSB
21 +5V
22 +5V
23 +5V
24 GND
ATX 4-Pin VGA Power Connector: PCIE_PW1
This connector is designed to connect 12V power supply for add-on PCI Express
graphics card(s). If users fail to connect this connector with an adequate power
supply, the alert LED (LED1) will glow.
PCIE_PW1 Pin Definition
PIN SIGNAL
12
1 5V
2 GND
3 GND
4 +12V
3 4
1
JPW1
E-12
JPW1 Pin Definition
PIN SIGNAL
2
1 GND
2 GND
3 12V
4 12V
PCIE_PW1
34
LED1
MSI Reminds You...
1. Maker sure that all three connectors are connected to adequate
ATX power supplies to ensure stable operation of the mainboard.
2. Power supply of 450watts (and above) is highly recommended
for system stability.
3. ATX 12V power connection should be greater than 20A.
Quick User’s Guide
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 or unplug the power connectors (as shown below)
before the 1st installation or during system upgrade procedure.
Unplug the AC power cable Unplug the power connector
Unplug power connectors
MSI Reminds You...
Mainboard photos shown in this section are for demonstration only.
The appearance of your mainboard may vary depending on the model
you purchased.
E-13
MS-7185 ATX Mainboard
Mouse
Keyboard
Serial Port
Parallel
1394 Port
Back Panel
LAN
SPDIF
Out
(Coaxial)
USB Ports
L-In
L-Out
Mic
RS-Out
CS-Out
SPDIF Out
(Optical)
Mouse/Keyboard Connector
Pin5
Pin6 NC
Pin2 NC
Serial Port
1 2 3 4 5
6 7 8 9
Mouse/KBD Clock
Pin3 GNDPin4 VCC
Pin1
Mouse/KBD
DATA
PIN SIGNAL
1 DCD
2 SIN
3 SOUT
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
USB Ports
1 2 3 4
PIN SIGNAL
1 VCC
2 -Data
3 +Data
4 GND
RJ-45 LAN Jack
8 1
Gigabit LAN
PIN SIGNAL DESCRIPTION
1 D0P Differential Pair 0+
2 D0N Differential Pair 03 D1P Differential Pair 1+
4 D2P Differential Pair 2+
5 D2N Differential Pair 26 D1N Differential Pair 17 D3P Differential Pair 3+
8 D3N Differential Pair 3-
IEEE 1394 Port
PIN SIGNAL
246
1
35
1 PWR
2 GND
3 TPB4 TPB+
5 TPA6 TPA+
E-14
Quick User’s Guide
Connectors
Floppy Disk Drive Connector: FDD1
The mainboard provides a standard floppy disk drive connector that supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types.
CD-In Connector: JCD1
This connector is provided for CD-ROM audio.
Chassis Intrusion Switch Connector: JCI1
This connector is connected to a 2-pin chassis switch. If the
chassis is opened, the switch will be short. 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.
SATA RAID Connectors: SATA1/SATA2/SATA3/SATA4
The nVIDIA nForceTM4 SLI provides a hybrid solution that combines
four independent SATA ports for support of up to four Serial ATA
(Serial ATA RAID) drives and utilizes nVIDIA Serial ATA software
RAID to support RAID levels 0, 1, 0+1, and JBOD for easy
management of the storage subsystems. These connectors support
2nd generation serial ATA data rates of 300 MB/s and are fully
compliant with Serial ATA II specifications.
Serial ATA cable
Take out the dust cover and
connect to the hard disk
devices
JCD1
R
GND
CINTRU
RXN
RXP
GND
GND
JCI1
GND
L
2
1
TXN
TXP
GND
Connect to SATA1/2/3/4
MSI Reminds You...
Please do not fold the Serial ATA cable into 90-degree angle. Otherwise,
data loss may occur during transmission.
E-15
MS-7185 ATX Mainboard
Fan Power Connectors: CPUFAN1 / SFAN1 / SFAN2 / NBFAN1
The fan power connectors support system cooling fan with +12V. When connecting
the wire to the connectors, always take 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 onboard, you must
use a specially designed fan with speed sensor to take advantage of the CPU fan
control.
+1 2V
GND
SFAN2
NC
GND
+12V
SENSOR
NBFAN1
GND
+12V
SENSOR
CPUFAN1
SFAN1
GND
+12V
SENSOR
MSI Reminds You...
1.CPUFAN1 supports fan control. You can install Core Center utility
that will automatically control the CPU fan speed according to the
actual CPU temperature.
2. Please refer to the recommended CPU fans at AMD® official website.
ATA133 Hard Disk Connectors: IDE1 & IDE2
The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 66/100/133
controller that provides PIO mode 0~4, Bus Master, and Ultra DMA 66/100/
133 function. You can connect up to four hard disk drives, CD-ROM and
other IDE devices.
The Ultra ATA133 interface boosts data transfer rates between the
computer and the hard drive up to 133 megabytes (MB) per second. The
new interface is one-third faster than earlier record-breaking Ultra ATA/
100 technology and is backwards compatible with the existing Ultra ATA
interface.
IDE1 (Primary IDE Connector)
The first hard drive should always be connected to IDE1. IDE1 can connect a Master
and a Slave drive. You must configure second hard drive to Slave mode by setting the
jumper accordingly.
IDE2 (Secondary IDE Connector)
IDE2 can also connect a Master and a Slave drive.
MSI Reminds You...
If you install two hard disks on cable, you must configure the second
drive to Slave mode by setting its jumper. Refer to the hard disk documentation supplied by hard disk vendors for jumper setting instructions.
E-16
Quick User’s Guide
IrDA Infrared Module Header: JIR1
The connector allows you to connect to IrDA Infrared module. You must configure the
setting through the BIOS setup to use the IR function. JIR1 is compliant with Intel
Front Panel I/O Connectivity Design Guide.
JIR1
IRRX
GND
IRTX
NC
VCC5
Front Panel Connectors: JFP1, JFP2
The mainboard provides two front panel connectors for electrical connection to the
front panel switches and LEDs. The JFP1 is compliant with Intel® Front Panel I/O
Connectivity Design Guide.
PWR_SW_P
FP PWR/SLP
FP PWR/SLP
HDD_LED_P
HDD_LED_N
PWR_SW_N
Reserved
RST_SW_P
RST_SW_N
JFP1
SPK-
GND
BUZ+
SLED
BUZ-
PLED
SPK+
JFP2
®
Front Panel Audio Connector: JAUD1
The JAUD1 front panel audio connector allows you to connect to the front panel
audio and is compliant with Intel® Front Panel I/O Connectivity Design Guide.
JAUD1
AUD_VCC
AUD_GND
AUD_MIC
AUD_MIC_BIAS
MSI Reminds You...
If you don’t want to connect to the front audio header, pins
5 & 6, 9 & 10 have to be jumpered in order to have signal
output directed to the rear audio ports. Otherwise, the
Line-Out connector on the back panel will not function.
AUD_RET_R
2
1
AUD_FPOUT_R
10
AUD_RET_L
AUD_FPOUT_L
9
HP_ON
6
10
5
9
E-17
MS-7185 ATX Mainboard
D-Bracket™ 2 Connector: JDB1
The mainboard comes with a JDB1 connector for you to
connect to D-Bracket™ 2. D-Bracket™ 2 is an external
USB Bracket that supports both USB1.1 & 2.0 spec. It
integrates four LEDs and allows users to identify system problems through 16 various combinations of LED
signals.
Connect to JDB1
D-Bracket™ 2
(Optional)
Connected to JUSB1/2/3
DBR2
DBR1
DBG1
DBG2
JDB1
DBR3
2
1
1 2
3 4
DBG3
DBR4
10
NC
9
DBG4
LEDs
IEEE 1394 Connector: J1394_1
The mainboard provides one 1394 pinheader that allows you to connect IEEE 1394
ports via an external IEEE1394 bracket.
Connected to J1394_1 (the 1394
pinheader in GREEN color)
J1394_1
TPA-
TPA+
Cable Power
TPB-
GND
2 10
1
Cable Power
TPB+
GND
GND
E-18
IEEE1394 Bracket (Optional)
Foolproof
design
Front USB Connectors: JUSB1, JUSB2, JUSB3
The mainboard provides three standard USB 2.0
pin headers. USB 2.0 technology increases data
transfer rate up to a maximum throughput of
480Mbps, which is 40 times faster than USB 1.1,
and is ideal for connecting high-speed USB
interface peripherals such as USB HDD, digital
cameras, MP3 players , printers, modems
and the like.
Connect to JUSB1, JUSB2, or JUSB3
(the USB pinheader in YELLOW color)
USB 2.0 Bracket
(Optional)
MSI Reminds You...
Note that the pins of VCC and GND must be connected correctly to
avoid possible damage.
JUSB1/2/3
Quick User’s Guide
USB1+
USB1-
GND
2
1
VCC
VCC
USB0-
USBOC
10
GND
USB0+
Button
Clear CMOS Button: SW1
CMOS stands for Complementary Metal-Oxide Semiconductor and is more specifically referred to as CMOS RAM. It is a tiny 64-byte region of memory that,
owing to battery power, retains system configuration data when the PC is
shut off. With the CMOS RAM, the system can automatically boot OS every
time it is turned on. If you want to clear the system configuration, press the
SW1 button to have the data erased.
MSI Reminds You...
You can clear CMOS by pressing this button while the system is off.
Avoid clearing CMOS while the system is on; it will damage the
mainboard.
SW1
E-19
MS-7185 ATX Mainboard
Slots
The motherboard provides two PCI Express x1 slots, two PCI Express x16 slots, and
three 32-bit PCI slots.
PCI (Peripheral Component Interconnect) Express Slots
The PCI Express slots support high-bandwidth, low pin count, and serial interconnect
technology. You can insert the expansion cards to meet your needs. When adding or
removing expansion cards, make sure that you unplug the power supply first.
PCI Express architecture provides a high performance I/O infrastructure for Desktop
Platforms with transfer rates starting at 2.5 Giga transfers per second over a PCI
Express x1 lane for Gigabit Ethernet, TV Tuners, 1394 controllers, and general purpose I/O. Also, desktop platforms with PCI Express Architecture will be designed to
deliver highest performance in video, graphics, multimedia and other sophisticated
applications. Moreover, PCI Express architecture provides a high performance graphics
infrastructure for Desktop Platforms doubling the capability of existing AGP 8x designs with transfer rates of 4.0 GB/s over a PCI Express x16 lane for graphics
controllers, while PCI Express x1 supports transfer rate of 250 MB/s.
PCI Express x16 slot
PCI Express x1 slot
PCI (Peripheral Component Interconnect) Slots
The PCI slots allow you to insert the expansion cards to meet your needs. When
adding or removing expansion cards, make sure that you unplug the power supply
first. Meanwhile, read the documentation for the expansion card to make any necessary hardware or software settings for the expansion card, such as jumpers,
switches or BIOS configuration.
PCI Slots
E-20
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