MSI MS-6785 Bedienungsanleitung

1-1

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 ad-

vanced Intel®Pentium®4 processors in the 478 pin package, the

MS-6785 delivers a high performance and professional desktop

platform solution.

1-2

MS-6785 M-ATX Mainboard

Mainboard Specifications

CPU

hSocket478forP4processorswith400/533/800MHz(100/133/200MHzQDIR).

hCore frequency up to 3.2GHz.

Chipset

hSiS®648FX (839pinBGA)

- 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.

hSiS®963 (371pinBGA)

- Supports high throughput SiS MuTIOL 1GHz interconnecting to SiS®963

mediaI/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.

MainMemory

hSupports four memory banks using two 184-pin DDR DIMMs.

hSupports up to 2GB PC3200/2700/2100DDR SDRAMs.

hSupports 2.5v DDR SDRAM.

Slots

hOne AGP (Accelerated Graphics Port) slot

- Supports AGP 3.0 4x/8x.

hThree 32-bit PCI bus slots.

- Support 3.3v/5v PCI bus interface.

- The second PCI slot in BLUE supports 2 master devices.

On-BoardIDE

hDual IDE controllers integrated in SiS 963.

hSupports P/O, Bus Master, Ultra DMA66/100/133 operation.

hCan connect up to four IDE devices.

1-3

Getting Started

On-BoardPeripherals

hOn-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

hIntegrated in SiS®963.

hAgere FW803 PHY.

Audio

hS/W C-Media 9739A 5.1 channel with SPDIF in/out.

LAN

hVIA®VT6103LANcontroller.

BIOS

hThe mainboard BIOS provides “Plug & Play” BIOS which detects the pe-

ripheral devices and expansion cards of the board automatically.

hThe mainboard provides a Desktop Management Interface (DMI) function

which records your mainboard specifications.

Dimension

hMicro ATX Form Factor: 24.0 cm x 24.5 cm.

Mounting

h6 mounting holes.

1-4

MS-6785 M-ATX Mainboard

Mainboard Layout

MS-6785v1.X Micro ATX Mainboard

DDR1

DDR2

AGP Slot

SiS

648FX

Top : mouse

Bottom:keyboard

T: RJ45 LAN jack

B: USB ports

JSPDIF1

CN8

1394port

Mini1394 port

JVEDIO1

Codec

VIA

VT6103

AGERE

FW803

BATT

BIOS

Winbond

83697HF

SiS

963

IDE1

IDE2

FDD1

PCI Slot1

PCI Slot2

PCI Slot3

JAUDIO1

CPUFAN1

JPW1

JLPT1

ATX

PowerSupply

JUSB1

F_P1

JBAT1

Line-Out

T:Mic

B:Line-In

T:SPDIF in

B:SPDIF out

2-1

Hardware Setup

Chapter 2. Hardware

Setup

Hardware Setup

This chapter provides you with the information about hard-

ware 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.

2-2

MS-6785 M-ATX Mainboard

Quick Components Guide

CPU, p.2-3

JPW1,p.2-9

Back Panel

I/O, p.2-10

CPUFAN1, p.2-17

DIMM1/2,

p.2-7

FDD1,

p.2-15

IDE2,

p.2-16

JUSB1,

p.2-19

F_P1,p.2-18JAUDIO1,p.2-22

JVIDEO1,p.2-18

PCI Slots,

p.2-25

AGP Slot,p.2-25

JSPDIF1,p.2-21

JBAT1,p.2-24

J7,p.2-23

CONN1,

p.2-9

J9,p.2-20

IDE1,

p.2-16

2-3

Hardware Setup

Central Processing Unit: CPU

CPU Core Speed Derivation Procedure

If CPU Clock = 100MHz

Core/Bus ratio = 14

then CPU core speed = Host Clock x Core/Bus ratio

= 100MHz x 14

= 1.4 GHz

MSI Reminds You...

Overheating

Overheating will seriously damage the CPU and system, al-

ways 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 sup-

ply 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.

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.

2-4

MS-6785 M-ATX Mainboard

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-de-

gree angle.

3. Look for the gold arrow. The

gold arrow should point to-

wards the lever pivot. The

CPU can only fit in the cor-

rect 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 pro-

cedures 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 prop-

erly and completely embed-

ded into the socket.

CPU Installation Procedures for Socket 478

Open Lever

90 degree

Sliding

Plate

Lever

Press down

the CPU

Gold arrow

Correct CPU placement

Incorrect CPU placement

2-5

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:

2. Position the heatsink onto the reten-

tion mechanism.

1. Locate the CPU and its retention

mechanism on the motherboard.

3. Mount the fan on top of the heatsink.

Press down the fan until its four clips

get wedged in the holes of the reten-

tion mechanism.

4. Press the two levers down to fasten

the fan. Each lever can be pressed

down in only ONE direction.

retention mechanism

levers

2-6

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

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