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 accor-
dance 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-7550
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
- Supports LAN 10/100/1000 Fast Ethermet by RTL8111C
IEEE 1394
- Chip integrated by Jmicron JMB381
- Transfer rate is up to 400Mb/s
- Supports 1 port
En-2
Audio
- HD Audio ALC888
- Up to 8-channel audio with jack sensing
IDE
- 1 IDE port by SB750
- Supports Ultra DMA 66/100/133 mode
- Supports PIO, Bus Master operation mode
SATA
- SATA II ports by SB750
- Supports 5 SATA II devices
- Supports storage and data transfers at up to 3.0 Gb/s
eSATA
- Supports 1 e-SATA port by SB750
- Supports storage and data transfers at up to 3.0 Gb/s
RAID
- SATA1~5 supports RAID 0/ 1/ 0+1/ 5 or JBOD mode by SB750
Floppy
- 1 floppy port
- Supports 1 FDD with 360KB, 720KB, 1.2MB, 1.44MB and 2.88MB
Connectors
Back panel
- 1 PS/2 mouse or keyboard port
- 1 IEEE 1394 port
- 6 USB 2.0 Ports
- 1 LAN jack
- 6 flexible audio jacks
- 1 Optical SPDIF out jack
- 1 e-SATA port
- 1 DVI-D port
- 1 VGA port
- 1 HDMI port
On-Board Pinheaders/ Connectors
- 3 USB 2.0 pinheaders
- 1 COM port pinheader
- 1 CD-in pinheader
- 1 TPM Module pinheader
- 1 Chassis Intrusion
- 1 Front Panel Audio pinheader
- 1 Wake on LAN connector
Slots
- 2 PCI Express x16 slots
(support into two x 8 ports when Gross-Fire Enabled)
- 2 PCI Express x1 slots
- 2 PCI slots
Form Factor
- ATX (30.4cm X 24.5 cm)
Engli sh
Mounting
- 9 mounting holes
En-3
MS-7550 Mainboard
Mouse/
Keyboard,
p.En-17
USB ports,
p.En-18
DVI-D Port,
p.En-17
JPWR2,
p.En-15
VGA Port,
p.En-17
CPU,
p.En-5
SPDIF out,
p.En-17
HDMI Port,
p.En-18
JCI1,
p.En-11
1394 port,
p.En-18
eSATA port,
p.En-18
WOL1,
p.En-12
LAN,
p.En-19
RS-Out
L-In
L-Out
CS-Out
Mic
SS-Out
Audio Port,
p.En-19
DDR2,
p.En-7
JPWR1,
p.En-15
SYS_FAN1,
p.En-9
PCI_E,
p.En-16
U117,
p.En-13PCI,
p.En-16
JUSB1~3,
p.En-11
POWER1,
p.En-13RESET1,
p.En-13
CLR_CMOS1,
p.En-14
JCD1,
p.En-10JAUD1,
p.En-12
SYS_FAN2,
p.En-9
FDD1,
p.En-9
Quick Components Guide of DKA790GX Platinum Series
En-4
(MS-7550 v1.X) Mainboard
CPU_FAN1,
p.En-9
IDE1,
p.En-9
JTPM,
p.En-12
SATA1~5,
p.En-10
JCOM1,
p.En-11JFP2,
p.En-10
JFP1,
p.En-10
Central Processing Unit: CPU
Correct CPU
The mainboard supports AMD® processor. The mainboard uses a CPU socket called
Socket AM2/AM2+ for easy CPU installation. If you do not have the CPU cooler, consult
your dealer 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.
Replaceing 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 inad-
equate operation or beyond product specifications.
CPU Installation Procedures for Socket AM2/ AM2+
1.Please turn off the power and unplug the power cord before installing the CPU.
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 of the CPU. The gold arrow should
Gold arrow
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.
placement
Engli sh
En-5
MS-7550 Mainboard
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 CPU cooler,
consult your dealer before turning on the computer.
Important
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.
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 .
3.Fasten down the lever.
4.Attach the CPU Fan cable to the CPU fan connector on the mainboard.
Fixed Lever
En-6
Memory
1
2
3
Installed
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. Please refer to the following illustrations for population rules
under Dual-Channel mode.
DIMM1
DIMM2
DIMM3
DIMM4
DIMM1
DIMM2
DIMM3
DIMM4
Engli sh
DIMM1
DIMM2
DIMM3
DIMM4
Empty
En-7
MS-7550 Mainboard
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 memory 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
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 the
same type and density in different channel DIMM slots.
-To enable successful system boot-up, always insert the memory modules
into the DIMM1 first.
En-8
Connectors, Switchs, Buttons, Slots
Fan Power Connectors: CPU_FAN1, SYS_FAN1/2
The fan power connectors support system cooling fan with +12V. The CPU FAN supports
Smart FAN function. When connect 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 on-board, you must use a specially designed fan with speed sensor to take
advantage of the fan control.
Engli sh
Control
SENSOR
+12V
GND
CPU_FAN1
SENSOR or NC
+12V
GND
SYS_FAN1/2
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 cooler set with 3 or 4 pins power connector are both available for CPUFAN.
Floppy Disk Drive Connector: FDD1
This connector supports 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB floppy disk drive.
IDE connector: IDE1
This connector supports IDE hard disk drives, optical disk drives and other IDE devices.
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 docu-
mentation supplied by the vendors for jumper setting instructions.
En-9
MS-7550 Mainboard
Serial ATA Connector: SATA1~5
This connector is a high-speed Serial ATA interface port. Each connector can connect to
one Serial ATA device.
SATA5
SATA1-2
SATA3-4
Important
Please do not fold the Serial ATA cable into 90-degree angle. Otherwise, data
loss may occur during transmission.
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
LED
Switch
-
+
JFP1
2
1
+
HDD
LED
- -
+
Reset
Switch
10
9
JFP2
CD-In Connector: JCD1
This connector is provided for external audio input.
GND R
L
En-10
2
1
Speaker
+
Power
LED
+
-
8
7
Front USB Connector (Yellow): JUSB1~3
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.
USB 2.0 Bracket
(Optional)
2
1
VCC
VCC
USBOC
USB1-
USB1+
GND
10
9
GND
USB0-
USB0+
Key (no pin)
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.
English
GN D
C INT RU
2
1
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.
SIN
CTS
DSR
2
1
DCD
10
9
RI
RTS
SOUTDTR
Ground
En-11
MS-7550 Mainboard
TPM module Connector: JTPM(optional)
This connector connects to a TPM (Trusted Platform Module) module (optional). Please
refer to the TPM security platform manual for more details and usages.
3V dua l / 3V _ST B
VC C3
SIR Q
VC C5
Ke y(n o pin )
GN D
GN D
2
1
14
13
LCLK
LAD0
LAD1
LAD2
LAD3
LR ST#
LF RA ME #
Front Panel Audio Connector (Azalia Spec): JAUD1
This connector allows you to connect the front panel audio and is compliant with Intel
Front Panel I/O Connectivity Design Guide.
M IC_ J D
NC (N o pi n)
Gr oun d
Pr esen ce#
2
1
MI C _ L
LI NE ou t_ JD
10
9
M IC _R
Fr on t_J D
LIN E ou t_L
LI NE ou t_ R
Wake-Up on LAN Connector: WOL1
This connector is for use with LAN add-on cards that supports Wake Up on LAN function.
To use this function, you need to set the “Wake-Up on LAN” to enable at the BIOS.
Note: LAN wake-up signal is
active “high”.
GND
5VSB
MP_WAKEUP
Important
®
To be able to use this function, you need a power supply that provide enough
power for this feature. (Power supply with 750ma 5V Stand-by)
En-12
Overclock FSB Switch: U117 (optional)
1
2
O
N
You can overclock the FSB to increase the processor frequency by changing the switch.
Follow the instructions below to set the FSB.
DOC1DOC2CPU Frequency
1:ON2:ONDefault
1:ON2:OFFIncrease 10% speed of FSB
1:OFF2:ONIncrease 15% speed of FSB
1:OFF2:OFFIncrease 20% speed of FSB
Important
1.Make sure that you power off the system before setting the switch.
2.When hardware overclocking cause system instability or crash during
boot, the following warning message will display during POST. And then,
please set the switch to default setting.
Warning!!! OC switch overclocking had failed,
Please shutdown and adjust oc switch to lower frequency.
Try again!
English
Power Button: POWER1
This power button is used to turn-on or turn-off the system. Press the button to turn-on or
turn-off the system.
Reset Button: RESET1
This reset button is used to reset the system. Press the button to reset the system.
En-13
MS-7550 Mainboard
Clear CMOS Button: CLR_CMOS1
There is a CMOS RAM on board that has a power supply from external battery to keep
the system configuration data. With the CMOS RAM, the system can automatically boot
OS every time it is turned on. If you want to clear the system configuration, use the
button to clear data. Press the button to clear the data.
Important
Make sure that you power off the system before clearing CMOS data.
En-14
Power Supply Attachment
Before inserting the power supply connector, always make sure that all components are
installed properly to ensure that no damage will be caused. All power connectors on
the mainbnoard have to connect to the ATX power supply and have to work together to
ensure stable operation of the mainboard.
ATX 24-Pin Power Connector: JPWR1
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.
This 12V power connector is used to provide power to the CPU.
English
GND
GND
1 3
2
12V
12V
4
En-15
MS-7550 Mainboard
PCI Express Slot (x16/ x1)
The PCI Express slot supports the PCI Express interface expansion card.
PCI Express x16 Slot
PCI Express x 1 Slot
PCI (Peripheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that
comply with PCI specifications.
Important
When adding or removing expansion cards, make sure that you unplug the power
supply first. Meanwhile, read the documentation for the expansion card to configure
any necessary hardware or software settings for the expansion card, such as
jumpers, switches or BIOS configuration.
En-16
Back Panel
Mouse/Keyboard
The standard PS/2® mouse/keyboard DIN connector is for a PS/2® mouse/keyboard.
VGA Port
The DB15-pin female connector is provided for monitor.
15
(15-Pin Female DIN Connector)
1115
DVI-D Port
The DVI-D (Digital Visual Interface) connector allows you to connect an 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.)
8
1
English
17
24
Important
Please note that the DVI-D connector does not support connecting the D-Sub to
DVI-D converter.
Optical S/PDIF-out
This S/PDIF (Sony & Philips Digital Interconnect Format) connector is provided for
digital audio transmission to external speakers through an optical fiber cable.
En-17
MS-7550 Mainboard
HDMI Port
The High-Definition Multimedia Interface (HDMI) is an all-digital audio/video interface
capable of transmitting uncompressed streams. HDMI supports all TV format, including
standard, enhanced, or high-definition video, plus multi-channel digital audio on a
single cable.
1394 Port
The IEEE1394 port on the back panel provides connection to IEEE1394 devices.
USB Port
The USB (Universal Serial Bus) port is for attaching USB devices such as keyboard,
mouse, or other USB-compatible devices.
External SATA 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.
En-18
LAN
The standard RJ-45 LAN jack is for connection to the Local Area Network (LAN). You can
connect a network cable to it.
LED ColorLED StateCondition
OffLAN link is not established.
Left OrangeOn (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.
Audio Port Connectors
These audio connectors are used for audio devices. You can differentiate the color of
the audio jacks for different audio sound effects.
English
Line-In (Blue) - Line In, is used for external CD player, tape player or other audio
devices.
Line-Out (Green) - Line Out, is a connector for speakers or headphones.
MIC (Pink) - Mic In, is a connector for microphones.
RS-Out (Black) - Rear-Surround Out in 4/ 5.1/ 7.1 channel mode.
CS-Out (Orange) - Center/ Subwoofer Out in 5.1/ 7.1 channel mode.
SS-Out (Gray) - Side-Surround Out 7.1 channel mode.
En-19
MS-7550 Mainboard
BIOS Setup
This chapter provides basic information on the BIOS Setup program and allows you to
configure the system for optimum use. You may need to run the Setup program when:
* An error message appears on the screen during the system booting up, and requests
you to run BIOS SETUP.
* You want to change the default settings for customized features.
Important
1.The items under each BIOS category described in this chapter are under continuous update for better system performance. Therefore, the description may
be slightly different from the latest BIOS and should be held for reference only.
2.Upon boot-up, the 1st line appearing after the memory count is the BIOS
version. It is usually in the format:
A7550AMS V1.0 010108 where:
1st digit refers to BIOS maker as A = AMI, W = AWARD, and P = PHOENIX.
2nd - 5th digit refers to the model number.
6th refers to the Chipset vender as A = AMD, I = Intel, V = VIA, N = Nvidia,
7th - 8th digit refers to the customer as MS = all standard customers.
V1.0 refers to the BIOS version.
010108 refers to the date this BIOS was released.
En-20
Entering Setup
Power on the computer and the system will start POST (Power On Self Test) process.
When the message below appears on the screen, press <DEL> key to enter Setup.
Press DEL to enter SETUP
If the message disappears before you respond and you still wish to enter Setup, restart
the system by turning it OFF and On or pressing the RESET button. You may also restart
the system by simultaneously pressing <Ctrl>, <Alt>, and <Delete> keys.
Getting Help
After entering the Setup menu, the first menu you will see is theMain Menu.
Main Menu
The main menu lists the setup functions you can make changes to. You can use the
arrow keys (↑↓ ) to select the item. The on-line description of the highlighted setup
function is displayed at the bottom of the screen.
Sub-Menu
If you find a right pointer symbol (as shown in the right view)
appears to the left of certain fields that means a sub-menu
containing additional options can be launched from this
field. You can use control keys (↑↓ ) to highlight the field
and press <Enter> to call up the sub-menu. Then you can
use the control keys to enter values and move from field to field within a sub-menu. If
you want to return to the main menu, just press <Esc >.
General Help <F1>
The BIOS setup program provides a General Help screen. You can call up this screen
from any menu by simply pressing <F1>. The Help screen lists the appropriate keys to
use and the possible selections for the highlighted item. Press <Esc> to exit the Help
screen.
English
En-21
MS-7550 Mainboard
The Main Menu
Once you enter AMI® or AWARD® BIOS CMOS Setup Utility, the Main Menu will appear
on the screen. The Main Menu allows you to select from ten setup functions and two exit
choices. Use arrow keys to select among the items and press <Enter> to accept or enter
the sub-menu.
Standard CMOS Features
Use this menu for basic system configurations, such as time, date etc.
Advanced BIOS Features
Use this menu to setup the items of special enhanced features.
Integrated Peripherals
Use this menu to specify your settings for integrated peripherals.
Power Management Setup
Use this menu to specify your settings for power management.
H/W Monitor
This entry shows your PC health status.
BIOS Setting Password
Use this menu to set the password for BIOS.
Cell Menu
Use this menu to specify your settings for fequency/voltage control and overclocking.
User Settings
Use this menu to save/ load your settings to/ from CMOS for BIOS.
Load Fail-Safe Defaults
Use this menu to load the default values set by the BIOS vendor for stable system
performance.
Load Optimized Defaults
Use this menu to load the default values set by the mainboard manufacturer specifically
for optimal performance of themainboard.
Save & Exit Setup
Save changes to CMOS and exit setup.
Exit Without Saving
Abandon all changes and exit setup.
En-22
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