Getting Started Chapter 1. Getting Started Getting Started Thank you for purchasing the MS-6785 v1.X Micro ATX mainboard. The MS-6785 is based on SiS®648FX & SiS®963 chipsets for optimal system efficiency. Designed to fit the advanced Intel® Pentium® 4 processors in the 478 pin package, the MS-6785 delivers a high performance and professional desktop platform solution. 1-1 MS-6785 M-ATX Mainboard Mainboard Specifications CPU Socket 478 for P4 processors with 400/533/800 MHz (100/133/200MHz QDIR). Core frequency up to 3.2GHz. Chipset SiS®648FX (839 pin BGA) - Supports Intel® Pentium® 4 processors with data transfer rate up to 800 MHz. - Supports 64-bit high performance DDR400/333/266 memory controller. - Supports AGP 8X/4X interface at 0.8v or 4x at 1.5v with fast write transaction. - Supports bi-directional 16-bit data bus with 1GHz bandwidth MuTIOL. SiS®963 (371 pin BGA) - Supports high throughput SiS MuTIOL 1GHz interconnecting to SiS®963 media I/O. - Supports Dual-IDE ATA 66/100/133. - Integrated Direct Sound AC97 audio. - Low pin count interface for SIO. - Advanced power management and PC2001 compliance. - High speed USB 2.0 controller, 480Mb/s. Main Memory Supports four memory banks using two 184-pin DDR DIMMs. Supports up to 2GB PC3200/2700/2100DDR SDRAMs. Supports 2.5v DDR SDRAM. Slots One AGP (Accelerated Graphics Port) slot - Supports AGP 3.0 4x/8x. Three 32-bit PCI bus slots. - Support 3.3v/5v PCI bus interface. - The second PCI slot in BLUE supports 2 master devices. On-BoardIDE Dual IDE controllers integrated in SiS 963. Supports P/O, Bus Master, Ultra DMA66/100/133 operation. Can connect up to four IDE devices. 1-2 Getting Started On-Board Peripherals On-Board Peripherals include: - One floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and 2.88Mbytes - One serial port (COM A) - One parallel port supports SPP/EPP/ECP mode (Optional) - One RJ-45 LAN port - Vertical audio ports - One RCA_SPDIF In & one RCA_SPDIF Out - Three 1394 ports [Rear x 2 (6 / 4 pins) + Front x 1 (6 pins)] - Six USB 2.0 ports (Rear * 2/ Front * 4) OnboardIEEE1394 Integrated in SiS®963. Agere FW803 PHY. Audio S/W C-Media 9739A 5.1 channel with SPDIF in/out. LAN VIA® VT6103 LAN 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. Dimension Micro ATX Form Factor: 24.0 cm x 24.5 cm. Mounting 6 mounting holes. 1-3 MS-6785 M-ATX Mainboard Mainboard Layout Top : mouse Bottom: keyboard JPW1 CPUFAN1 JLPT1 T: RJ45 LAN jack B: USB ports 1394 port Mini1394 port T:SPDIF in B:SPDIF out Line-Out Line-Out Line-Out T:Mic B:Line-In J9 CN8 Winbond 83697HF AG P Slot DDR 1 AGERE FW803 DDR 2 PCI Slot 1 VIA VT6103 JSPDIF1 PCI Slot 2 SiS 963 PCI Slot 3 F_P1 Codec JVEDIO1 JAUDIO1 JBAT1 BATT + MS-6785v1.X Micro ATX Mainboard 1-4 IDE 2 JUSB1 IDE 1 BIOS SiS 648FX ATX Power Supply FDD1 Hardware Setup Chapter 2. Hardware Setup Hardware Setup This chapter provides you with the information about hardware setup procedures. While doing the installation, be careful in holding the components and follow the installation procedures. For some components, if you install in the wrong orientation, the components will not work properly. Use a grounded wrist strap before handling computer components. Static electricity may damage the components. 2-1 MS-6785 M-ATX Mainboard Quick Components Guide JPW1, p.2-9 CPU, p.2-3 CPUFAN1, p.2-17 DIMM1/2, p.2-7 CONN1, p.2-9 Back Panel I/O, p.2-10 FDD1, p.2-15 IDE2, p.2-16 J7, p.2-23 J9, p.2-20 AGP Slot, p.2-25 IDE1, p.2-16 JUSB1, p.2-19 JSPDIF1, p.2-21 PCI Slots, p.2-25 JVIDEO1, p.2-18 JAUDIO1, p.2-22 JBAT1, p.2-24 F_P1, p.2-18 2-2 Hardware Setup Central Processing Unit: CPU The mainboard supports Intel® Pentium® 4 processors in the 478 pin package. The mainboard uses a CPU socket called PGA478 for easy CPU installation. 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 find the heat sink and cooling fan, contact your dealer to purchase and install them before turning on the computer. CPU Core Speed Derivation Procedure CPU Clock Core/Bus ratio then CPU core speed If = = = = = 100MHz 14 Host Clock x Core/Bus ratio 100MHz x 14 1.4 GHz MSI Reminds You... Overheating Overheating will seriously damage the CPU and system, always make sure the cooling fan can work properly to protect the CPU from overheating. Replacing the CPU While replacing the CPU, always turn off the ATX power supply or unplug the power supply's power cord from grounded outlet first to ensure the safety of CPU. Overclocking This motherboard 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 inadequate operation or beyond product specifications. 2-3 MS-6785 M-ATX Mainboard CPU Installation Procedures for Socket 478 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. The gold arrow should point towards the lever pivot. 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 Open Lever 90 degree Gold arrow Correct CPU placement Gold arrow O Gold arrow Incorrect CPU placement X Press down the CPU Close Lever 2-4 Hardware Setup Installing the CPU Fan As processor technology pushes to faster speeds and higher performance, thermal management becomes increasingly important. To dissipate heat, you need to attach the CPU cooling fan and heatsink on top of the CPU. Follow the instructions below to install the Heatsink/Fan: 1. Locate the CPU and its retention mechanism on the motherboard. retention mechanism 2. Position the heatsink onto the retention mechanism. 3. Mount the fan on top of the heatsink. Press down the fan until its four clips get wedged in the holes of the retention mechanism. 4. Press the two levers down to fasten the fan. Each lever can be pressed down in only ONE direction. levers 2-5 MS-6785 M-ATX Mainboard 5. Connect the fan power cable from the mounted fan to the 3-pin fan power connector on the board. fan power cable NOTES 2-6 Hardware Setup Memory The mainboard provides 2 slots for 184-pin DDR SDRAM DIMM (Double In-Line Memory Module) modules and supports the memory size up to 2GB. You can install PC2700/DDR333, PC2100/DDR266 or PC1600/ DDR200 modules on the DDR DIMM slots (DIMM 1~2). DDR DIMM Slots (DIMM 1~2) Introduction to DDR SDRAM DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but doubles the rate by transferring data twice per cycle. It uses 2.5 volts as opposed to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM modules rather than 168-pin DIMM modules used by SDR SDRAM. High memory bandwidth makes DDR an ideal solution for high performance PC, workstations and servers. 2-7 MS-6785 M-ATX Mainboard DIMM Module Combination Install at least one DIMM module on the slots. Memory modules can be installed on the slots in any order. You can install either single- or doublesided modules to meet your own needs. Memory modules can be installed in any combination as follows: Slot DIMM 1 (Bank 0 & 1) DIMM 2 (Bank 2 & 3) Memory Module S/D S/D Total Memory 64MB~1GB 64MB~1GB 64MB~2GB D: Double Side Maximum System Memory Supported S: Single 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. MSI Reminds You... You can barely see the golden finger if the module is properly inserted in the socket. 3. The plastic clip at each side of the DIMM slot will automatically close. Volt Notch 2-8 Hardware Setup 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 20-Pin Power Connector: CONN1 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. ATX 12V Power Connector: JPW1 This 12V power connector is used to provide power to the CPU. JPW1 3 1 4 2 11 1 20 10 CONN1 CONN1 Pin Definition PIN SIGNAL 3.3V 3.3V GND 5V GND 5V GND PW_OK 5V_SB 12V PIN 11 12 13 14 15 16 17 18 19 20 SIGNAL 3.3V -12V GND PS_ON GND GND GND -5V 5V 5V JPW1 Pin Definition PIN 1 2 3 4 SIGNAL GND GND 12V 12V 1 2 3 4 5 6 7 8 9 10 2-9 MS-6785 M-ATX Mainboard Back Panel The back panel provides the following connectors: 6 Channel L-Out Mouse LAN SPDIF-In IEEE1394 Ports MIC Keyboard COM A USB SPDIF-Out L-In Mouse/Keyboard Connector The mainboard provides a standard PS/2® mouse/keyboard mini DIN connector for attaching a PS/2® mouse/keyboard. You can plug a PS/2® mouse/ keyboard directly into this connector. The connector location and pin assignments are as follows: Pin Definition 6 4 5 3 PIN 1 2 3 4 5 6 SIGNAL Mouse/Keyboard Data NC GND VCC Mouse/Keyboard Clock NC DESCRIPTION Mouse/Keyboard data No connection Ground +5V Mouse/Keyboard clock No connection 2 1 PS/2 Mouse/Keyboard (6-pin Female) 2-10 Hardware Setup SPDIF Connectors The SPDIF connectors privided on the back pannel can be used to connect your digital audio equipment. SPDIF IN SPDIF OUT Serial Port Connector: COM A The mainboard offers one 9-pin male DIN connectors as serial port COM A. This port is a 16550A high speed communication port that sends/receives 16 bytes FIFOs. You can attach a serial mouse or other serial devices directly to this connector. Pin Definition 1 2 3 4 5 PIN 1 2 3 4 5 6 7 8 9 SIGNAL DCD SIN SOUT DTR GND DSR RTS CTS RI DESCRIPTION Data Carry Detect Serial In or Receive Data Serial Out or Transmit Data Data Terminal Ready) Ground Data Set Ready Request To Send Clear To Send Ring Indicate 6 7 8 9 9-Pin Male DIN Connector 2-11 MS-6785 M-ATX Mainboard Parallel Port Connector: LPT1 The mainboard provides a 25-pin female centronic connector as LPT. A parallel port is a standard printer port that supports Enhanced Parallel Port (EPP) and Extended Capabilities Parallel Port (ECP) mode. 13 1 25 14 Pin Definition PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 SIGNAL STROBE DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 ACK# BUSY PE SELECT AUTO FEED# ERR# INIT# SLIN# GND GND GND GND GND GND GND GND DESCRIPTION Strobe Data0 Data1 Data2 Data3 Data4 Data5 Data6 Data7 Acknowledge Busy Paper End Select Automatic Feed Error Initialize Printer Select In Ground Ground Ground Ground Ground Ground Ground Ground 2-12 Hardware Setup RJ-45 LAN Jack (Optional) The mainboard provides one standard RJ-45 jack for connection to Local Area Network (LAN). You can connect a network cable to the LAN jack. Pin Definition PIN 1 2 SIGNAL TDP TDN RDP NC NC RDN NC NC DESCRIPTION Transmit Differential Pair Transmit Differential Pair Receive Differential Pair Not Used Not Used Receive Differential Pair Not Used Not Used RJ-45 LAN Jack 3 4 5 6 7 8 USB Connectors The mainboard provides four UHCI (Universal Host Controller Interface) Universal Serial Bus roots for attaching USB devices such as keyboard, mouse or other USB-compatible devices. You can plug USB devices directly into the connectors. USB Port Description 1 2 3 4 PIN 1 2 3 4 5 6 7 8 SIGNAL VCC -Data 0 +Data0 GND VCC -Data 1 +Data 1 GND DESCRIPTION +5V Negative Data Channel 0 Positive Data Channel 0 Ground +5V Negative Data Channel 1 Positive Data Channel 1 Ground 5 6 7 8 USB Ports 2-13 MS-6785 M-ATX Mainboard IEEE1394 Ports The mainboard provides two IEEE 1394 ports. The mini IEEE1394 port is designed for you to connect the IEEE1394 device with external power. The standard IEEE1394 port connects to IEEE1394 devices without external power. The IEEE1394 h ...