MSI G31M3-L V2 User Guide - Page 13

Important: Please do not fold the Serial ATA cable into 90-degree angle. Otherwise, data loss may occur during transmission. 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. 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. Control Sensor +12V GND GND +12V Sensor Sensor GND +12V GND 2 CINTRU 1 S/PDIF-Out Connector: JSPD1 This connector is used to connect S/PDIF (Sony & Philips Digital Interconnect Format) interface for digital audio transmission. GND SPDIF VCC CD-In Connector: CD_IN1 This connector is provided for external audio input. 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. Front USB Connector: JUSB1, JUSB2 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. L GND R JFP2 87 Speaker Power LED 21 JFP1 12 + -- + -+ HDD LED Power LED Reset Switch Power Switch 9 10 USB1+ USB1- GND (2)VCC (1 )VC C N.C.(10) Key,no pin(9) USB0- GND USB0+ 7