MSI K8n Neo4 Manual

							2-17 Hardware SetupHard Disk Connectors: IDE1 / IDE2
The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 33/66/100/133 controller
that provides PIO mode 0~4, Bus Master, and Ultra DMA 33/66/100/133 function. You
can connect up to four hard disk drives, CD-ROM, or other devices.
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.IDE1 IDE2MSI 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.Chassis Intrusion Switch Connector: JCI1
This connector is connected to a 2-pin chassis switch. If the chas-
sis 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.JCI12
1 GND
CINTRU 
						

							2-18 MS-7125 ATX Mainboard
CD-In Connector: JCD1
The connector is for CD-ROM audio connector.
JCD1Serial ATA/Serial ATA RAID Connectors controlled by
nForce4 Ultra: SATA1 / SATA2 / SATA3 / SATA4
The Southbridge of this mainboard is nForce4 Ultra which supports four serial
ATA connectors SATA1~SATA4.
SATA1~SATA4 support 1st
 generation serial ATA data rates of 150MB/s.  Each
Serial ATA connector can connect to 1 serial ATA device.  Please refer to the nVidia
RAID Introduction for detailed software installation procedure.
GND R
LMSI Reminds You...
Please do not fold the serial ATA cable in a 90-degree angle, which will
cause the loss of data during the transmission.Take out the dust cover
and connect to the hard
disk devices PINSIGNALPINSIGNAL
1GND2TXP
3TXN4GND
5RXN6RXP
7GNDSATA1~  SATA4 Pin DefinitionSATA4SATA2
SATA11
7SATA31
7Serial ATA cable
(Optional)
Connect to serial ATA ports 
						

							2-19 Hardware SetupFront Panel Connectors: JFP1 / JFP2
The mainboard provides two front panel connectors for electrical connection
to the front panel switches and LEDs. JFP1 is compliant with Intel®
 Front Panel I/O
Connectivity Design Guide.Front USB Connectors: JUSB1 / JUSB2 / JUSB3
The mainboard provides three standard USB 2.0 pin headers JUSB1 & JUSB2
& JUSB3. 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.MSI Reminds You...
Note that the pins of VCC and GND must be connected correctly, or it
may cause some damage.7 8Power
LED Speaker
1 2JFP2JFP1
19 102Power
 LED Power
Switch
 Reset
Switch HDD
LEDPINSIGNALDESCRIPTION
1HD_LED_PHard disk LED pull-up
2FP PWR/SLPMSG LED pull-up
3HD_LED_NHard disk active LED
4FP PWR/SLPMSG LED pull-up
5RST_SW_NReset Switch low reference pull-down to GND
6PWR_SW_PPower Switch high reference pull-up
7RST_SW_PReset Switch high reference pull-up
8PWR_SW_NPower Switch low reference pull-down to GND
9RSVD_DNUReserved. Do not use.  JFP1 Pin DefinitionPINSIGNALPINSIGNAL
1GND2SPK-
3SLED4BUZ+
5PLED6BUZ-
7NC8SPK+JFP2 Pin DefinitionPINSIGNALPINSIGNAL
1VCC2VCC
3USB0-4USB1-
5USB0+6USB1+
7GND8GND
9Key (no pin)10USBOCJUSB1 & JUSB2 & JUSB3 Pin Definition
JUSB1, JUSB2, JUSB3
(USB 2.0)      1     2  10
   9Connected  to JUSB1, JUSB2, or
JUSB3 (the USB pinheader in
YELLOW color)USB 2.0 Bracket
(Optional) 
						

							2-20 MS-7125 ATX MainboardFront 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
12
9 10PINSIGNALDESCRIPTION
1AUD_MICFront panel microphone input signal
2AUD_GNDGround used by analog audio circuits
3AUD_MIC_BIASMicrophone power
4AUD_VCCFiltered +5V used by analog audio circuits
5AUD_FPOUT_RRight channel audio signal to front panel
6AUD_RET_RRight channel audio signal return from front panel
7HP_ONReserved for future use to control headphone amplifier
8KEYNo pin
9AUD_FPOUT_LLeft channel audio signal to front panel
10AUD_RET_LLeft channel audio signal return from front panel Pin DefinitionMSI 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.5 6
10
     9IrDA Infrared Module Header: JIR1
The connector allows you to connect to IrDA Infrared module. You must config-
ure the setting through the BIOS setup to use the IR function. JIR1 is compliant with
Intel®
 Front Panel I/O Connectivity Design Guide.
JIR1JIR1 Pin Definition
65
21PinSignalPinSignal
1NC2NC
3VCC54GND
5IRTX6IRRX 
						

							2-21 Hardware SetupFoolproof
design Connected to J1394 (the 1394
pinheader in GREEN color)IEEE1394 Bracket (Optional) IEEE 1394 Connectors: J1394_1  (Optional)
The mainboard provides another 1394 pin header that allows you to connect
IEEE 1394 ports via an external IEEE1394 bracket (optional).
Pin Definition
PINSIGNALPINSIGNAL
1TPA+2TPA-
3Ground4Ground
5TPB+6TPB-
7Cable power8Cable power
9Key (no pin)10GroundJ1394_1      1     2   9   10 
						

							2-22 MS-7125 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 a USB Bracket that supports both USB1.1 & 2.0 spec. It integrates four
LEDs and allows users to identify system problem through 16 various combinations
of LED signals.PinSignal
1         DBG1 (high for green color)
2         DBR1 (high for red color)
3         DBG2 (high for green color)
4         DBR2 (high for red color)
5         DBG3 (high for green color)
6         DBR3 (high for red color)
7         DBG4 (high for green color)
8         DBR4 (high for red color)
9         Key
10       NCPin Definition
JDB1     1   9     2  10D-Bracket™ 2
(Optional)
Connected to JUSB1, JUSB2 or JUSB3
(the USB pinheader in YELLOW color) Connected to JDB1LEDs 
						

							2-23 Hardware SetupRedGreenDescription
System Power ON
The D-LED will hang here if the processor is damaged or
not installed properly.
Early Chipset Initialization
Memory Detection Test
Testing onboard memory size. The D-LED will hang if the
memory module is damaged or not installed properly.
Decompressing BIOS image to RAM for fast booting. 1                   2
3                   4
Initializing Keyboard Controller.
Testing VGA BIOS
This will start writing VGA sign-on message to the screen.D-Bracket™ 2 D-Bracket™ 2 is an external USB bracket integrating four Diagnostic LEDs, which
use graphic signal display to help users understand their system. The LEDs provide
up to 16 combinations of signals to debug the system. The 4 LEDs can debug all
problems that fail the system, such as VGA, RAM or other failures. This special
feature is very useful for the overclocking users. These users can use the feature to
detect if there are any problems or failures.
D-Bracket™ 2 supports both USB 1.1 & 2.0 specification.D-Bracket™ 21        2
3        4 
						

							2-24 MS-7125 ATX MainboardD-Bracket™ 2Description
Processor Initialization
This will show information regarding the processor (like
brand name, system bus, etc...)
Testing RTC (Real Time Clock)
Initializing Video Interface
This will start detecting CPU clock, checking type of video
onboard. Then, detect and initialize the video adapter.
BIOS Sign On
This will start showing information about logo, proces-
sor brand name, etc...
Testing Base and Extended Memory
Testing base memory from 240K to 640K and extended
memory above 1MB using various patterns.
Assign Resources to all ISA.
Initializing Hard Drive Controller
This will initialize IDE drive and controller.
Initializing Floppy Drive Controller
This will initialize Floppy Drive and controller.
Boot Attempt
This will set low stack and boot via INT 19h.
Operating System Booting 1                   2
3                   4 
						

							2-25 Hardware SetupThe motherboard provides the following button for you to set the computer’s
function. This section will explain how to change your motherboard’s function through
the use of button.Button
Clear CMOS Button: SW1
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 auto-
matically boot OS every time it is turned on.  If you want to clear the system
configuration, use the SW1 (Clear CMOS Button ) to clear data.  Press the button in
the middle of the connector top side to clear the data.
SW1 
						

							2-26 MS-7125 ATX MainboardSlots
PCI Express Slots
The PCI Express slots,  as a high-bandwidth, low pin count, serial, intercon-
nect 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 AGP8x de-
signs 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.The mainboard provides one PCI Express x16 slot, one PCI Express x1 slots,
one PCI Express x4 slots and four 32-bit PCI bus slots.PCI Express x1 slotPCI Express x16 slotPCI (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.
The orange PCI slot (PCI4) also works as a communcation slot, which allows
you to insert the communcation card.
PCI SlotsPCI Express x4 slot
(supports PCI-E x2 device only)