MSI K9a2 Cff Manual
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2-8MS-7388 MainboardPower Supply PINSIGNAL 13+3.3V 14-12V 15GND 16PS-ON# 17GND 18GND 19GND 20Res 21+5V 22+5V 23+5V 24GNDPINSIGNAL 1+3.3V 2+3.3V 3GND 4+5V 5GND 6+5V 7GND 8PWR OK 95VSB 10+12V 11+12V 12+3.3V Pin Definitionpin 12pin 13 ATXPWR1 ATX 24-Pin Power Connector: ATXPWR1 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 sup- ply 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.PINSIGNAL 1GND 2GND 312V 412V Pin Definition JPW1 ATX 12V Power Connector: JPW1 This power connector JPW1 is used to provide power to the CPU.24 13 1 121 34 2Important 1. Maker sure that all the connectors are connected to proper ATX power sup- plies to ensure stable operation of the mainboard. 2. Power supply of 350 watts (and above) is highly recommended for system stability.
2-9Hardware SetupBack Panel Mouse/Keyboard The standard PS/2® mouse/keyboard DIN connector is for a PS/2® mouse/keyboard. IEEE 1394 Port (optional) The 1394 port on the back panel provides connection to 1394 devices. Serial Port The serial port is a 16550A high speed communications port that sends/ receives 16 bytes FIFOs. You can attach a serial mouse or other serial devices directly to the connector. USB Port The USB (Universal Serial Bus) port is for attaching USB devices such as keyboard, mouse, or other USB-compatible devices. LAN The standard RJ-45 LAN jack is for con- nection to the Local Area Network (LAN). You can connect a network cable to it.KeyboardUSB PortsLine-In MouseLAN RS-Out CS-Out SS-Out Line-Out Mic 1394 (optional)Serial Port USB Ports eSATA Port (optional)Link Indicator Activity IndicatorLEDColorLED StateCondition OffLAN link is not established. LeftOrangeOn (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.
2-10MS-7388 Mainboard eSATA Port (optional)
The eSATA port is for attaching the eSATA external hard drive. Audio Ports
These audio connectors are used for audio devices. You can differentiate the color
of the audio jacks for different audio sound effects. Line-In (Blue) - Line In, is used for external CD player, tapeplayer or other
audio devices. Line-Out (Green) - Line Out, is a connector for speakers or headphones. Mic (Pink) - Mic, 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.
2-11Hardware SetupConnectors 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 documentation supplied by the vendors for jumper setting instructions.IDE1FDD1
2-12MS-7388 Mainboard Serial ATA Connector: SATA1/ SATA2/ SATA3/ SATA4 This connector is a high-speed Serial ATA interface port. Each connector can con- nect to one Serial ATA device.Important Please do not fold the Serial ATA cable into 90-degree angle. Otherwise, data loss may occur during transmission.SATA1 SATA2 SATA4 SATA3
2-13Hardware Setup Fan Power Connectors: CPUFAN1, SYSFAN1, SYSFAN2 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.Important 1.Please refer to the recommended CPU fans at processor’s official website or consult the vendors for proper CPU cooling fan. 2.CPUFAN1 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 CPUFAN1.CPUFAN1 SENSOR +12V GNDCONTROL SYSFAN2 SENSOR +12VGNDCD-In Connector: JCD1 This connector is provided for external audio input..JCD1GNDLRSYSFAN1 SENSOR +12VGND
2-14MS-7388 Mainboard Front Panel Audio Connector: JAUD1 This connector allows you to connect the front panel audio and is compliant with Intel® Front Panel I/O Connectivity Design Guide. PINSIGNALDESCRIPTION 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 DefinitionJAUD11 2 9 10TPM 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.PinSignalDescriptionPinSignalDescription 1LCLKLPC clock23V dual/3V_STB3V dual or 3V 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 Frame14GNDGround2 114 13
2-15Hardware Setup
Front USB Connector: JUSB1 / JUSB2 / JUSB3
This connector, compliant with Intel®
I/O Connectivity Design Guide, is ideal for con-
necting high-speed USB interface peripherals such as USB HDD, digital cameras,
MP3 players, printers, modems and the like.
PINSIGNALPINSIGNAL
1VCC2VCC
3USB0-4USB1-
5USB0+6USB1+
7GND8GND
9Key (no pin)10USBOCPin DefinitionImportant
Note that the pins of VCC and GND must be connected correctly to avoid
possible damage.USB 2.0 Bracket
(Optional) 1
9
2
10
JUSB1/2/3
2-16MS-7388 Mainboard 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. JFP1 Pin DefinitionFront 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. PINSIGNALDESCRIPTION 1GNDGround 2SPK-Speaker- 3SLEDSuspend LED 4BUZ+Buzzer+ 5PLEDPower LED 6BUZ-Buzzer- 7NCNo connection 8SPK+Speaker+ JFP2 Pin Definition2 1 109 JFP1HDD LED Reset Switch Power LED Power Switch+ + +- - -Power LED Speaker1 2 7 8JFP2 - - + + 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. JCI11 2 CINTRU GND
2-17Hardware Setup
IEEE1394 Connector: J1394_1 (Optional)
This connector allows you to connect the IEEE1394 device via an optional IEEE1394
bracket.
Pin Definition
PINSIGNALPINSIGNAL
1TPA+2TPA-
3Ground4Ground
5TPB+6TPB-
7Cable power8Cable power
9Key (no pin)10GroundJ1394_1 1
9
2 10IEEE1394 Bracket (Optional)S/PDIF-Out Connector: JSPD1 (Optional, for HDMI graphics card
only)
This connector is used to connect S/PDIF (Sony & Philips Digital Interconnect Format)
interface for digital audio transmission to the HDMI graphics card.
JSPD1 SPDIFOGND