Gigabyte GA-6RX-1 User Manual

FCC Compliance Statement:

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2. 1077(a)

This equipment has been tested and found to comply with limits for a Class B digital device,

Responsible Party Name: G.B.T. INC.

Phone/Fax No: (818) 854-9338/ (818) 854-9339

hereby declares that the product

Product Name:

Model Number:

Conforms to the following specifications:

FCC Part 15, Subpart B, Section 15.107(a) and Section 15.109(a), Class B Digital Device

Supplementary Information:

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmfu l and (2) this device must accept any inference received, including that may cause undesired operation.

Representative Person's Name: ERIC LU

Signature:

Address: 18305 Valley Blvd., Suite#A

Mother Board

Date: Jan.10, 2001

LA Puent, CA 91744

GA-6RX

Er ic Lu

pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in residential installations. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accord ance with the instr uctions, may cause harmful interference to radio communications. However, there is no guara nte e tha t i nterfer ence will not occur in a particular installation. If this equipment does cause interference to radio or

television equipment reception, which can be determined by turning th e equi pment off and on, the user i s encour aged to try t o correct the interference by one or more of the following measures:

-Reorient or relocate the receiving antenna

-Move the equipment away from the receiver

-Plug the equipment into an outlet on a circuit different from that to which the receiver is connected

-Consult the dealer or an experienced radio/television technician for additional suggestions

You are cautioned that any change or modifications to the equipment not expressly approve by the party responsible for compliance could void Your authority to operate such equipment.

This device complies with Part 15 of the FCC Rules. Operation is subjected to the following two conditions 1) this device may not cause harmful interference and 2) this device must a ccept any interference received , in cl uding interference that may cause undesired operation.

Declaration of Conformity

We, Manufacturer/Importer

(full address)

G.B.T. Technology Träding GMbH

Ausschlager Weg 41, 1F, 20537 Hamburg, Germany

( description of the apparatus, system, installation to which it refers)

(reference to the specification under which conformity is declared)

in accordance with 89/336 EEC-EMC Directive

Limits and methods of measurement

EN 55011

of radio disturbance char ac teristics of

industrial, scient ific and medical (ISM electrical equipment “ Harmonics” high frequency equipment

Limits and methods of measurement

EN55013

of radio disturbance char ac teristics of broadcast receivers and associated electrical equi pment “Voltage fluctuations” equipment

Limits and methods of measurement

EN 55014

of radio disturbance char ac teristics of portable tools and similar electric al

apparatus Residual, commer c ial and light indust r y

EN 55015

of radio disturbance char ac teristics of Industrial env ironment fluorescent lam ps and luminaries

EN 55020

broadcast receivers and associated Industrial environment equipment

EN 55022

of radio disturbance char ac teristics of appliances tools and similar apparatus information technology equipment

DIN VDE 0855 part 10 part 12

household electrical appliances,

Limits and methods of measurement

Immunity fr om radio interference of

Limits and methods of measurement

Cabled distribution systems; Equipment for receiving and/or sound and television signals

distribution

declare that the product

from power systems (UPS)

Mother Board

GA-6RX

is in conformity with

EN 61000-3-2*

EN60555-2

EN61000-3-3* EN60555-3

EN 50081-1

EN 50082-1

EN 55081-2

EN 55082-2

ENV 55104

EN 50091- 2

Disturbances in supply systems caused

by household appliances and similar

Disturbances in supply systems caused

by household appliances and similar

Generic emission standar d P ar t 1:

Residual, commer c ial and light indust r y

Generic immunity standard Part 1:

Generic emission standard Par t 2:

Generic immunity standard Part 2:

Immunity requirem ents for household

EMC requirements for uninterruptible

CE marking

EN 60065

electronic and related apparatus for including electr ical business equipment household and similar general use

EN 60335

electrical appl iances uninterruptible power system s (UPS )

Signature

The manufacturer also declares the conformity of above mentioned product with the actual required safety standard s in accordance with LVD 73/23 EEC

Safety requirements for mains operated

Safety of household and similar

Date : Jan. 10, 2001 Name : Rex Li n

(Stamp)

Manufacturer/Importer

(EC conformity m ar k ing)

Safety f or information technology equipment

EN 60950

General and Safety r equirements for

EN 50091-1

Rex Lin

6RX Series

Socket 370 Processor Motherboard

USER'S MANUAL

Socket 370 Processor Motherboard

REV 1.0 Third Edition

R-10-03-010420

How This Manual Is Organized

This manual is divided into the following sections:

1) Revision List

2) Item Checklist

3) Features

4) Installation Guide

Manual revision information

Product item list

Product information & specification

Instructions on CPU & Memory Installation

5) Performance & Block Diagram

6) Suspend to RAM & Dual BIOS

7) Four Speaker & SPDIF

8) @BIOS™ & EasyTune

Four Speaker & SPDIF introduction

™

III

9) Raid

10) BIOS Setup

Instructions on setting up the BIOS

11) Technical Support/RMA Sheet

Product performance & block diagram

Instructions on STR & Dual BIOS installation

@BIOS

& EasyTune

™

introduction

™

III

Instructions on Raid

software Document equipment used for after sales

service

12) Appendix

General reference

Table Of Content

Revision History P.1 Item Checklist P.2 Features Summary P.3 6RX Series Motherboard Layout P.5 Installation Guide P. 6 Page Index for Connectors / Panel and Jumper Definition P.15 Performance List P.39 Block Diagram P.40 Suspend to RAM Installation P.41 Dual BIOS Introduction (Optional) P.47 Four Speaker & SPDIF Introduction (Optional) P.54 @BIOSTM Introduction P.60 EasyTune

Introduction P.61

III

Raid Introduction P.63 Page Index for BIOS Setup P.86 Technical Support / RMA Sheet P.115 Appendix P.116

6RX Series Motherboard

Revision History

Revision Revision Note Date

1.0 Initial release of the 6RX Series motherboard user’s manual.

1.0 Second release of the 6RX Series motherboard user’s manual.

1.0 Third release of the 6RX Series motherboard user’s manual.

The author assumes no responsibility for any errors or omissions that may appear in this document nor does the author make a commitment to update the information contained herein. Third-party brands and names are the property of their respective owners.

Apr. 20, 2001 Taipei, Taiwan, R.O.C

Jan. 2001

Feb. 2001 Apr. 2001

Item Checklist

The 6RX Series Motherboard

;

Cable for IDE / Floppy device

;

CD (TUCD) for motherboard utilities

;

6RX Series User’s Manual

;

Front USB Cable

;

6RX Series Motherboard

Features Summary

Form factor Motherboard

CPU

Chipset Clock Generator

Memory

I/O Control Slots

On-Board IDE

30.5 cm x 24.5 cm ATX size form factor, 4 layers PCB.

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6RX series includes 6RX, 6RX-1, 6RX-L

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Socket 370 processor

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Intel Pentium Intel Celeron VIA Cyrix

(Please make sure y our CPU is mass producti on version)

L2 cache depend on CPU

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VT8633 (Apollo Pro266)

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VT8233

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ICW W250-03

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66/100/133 MHz system bus speeds (PCI 33MHz)

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115/124/140/145/150 MHz system bus speeds

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

!!! 100/133MHz FSB, FC-PGA

66/100MHz FSB, FC-PGA



III 100/133MHz FSB, CPGA

(reserved)

4 184-pin DDR DIMM sockets

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Supports PC1600 DDR or PC2100 DDR SDRAM

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Supports up to 4GB DRAM (Max)

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Supports only 2.5V DDR SDRAM

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ITE IT8705 F

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1 Universal AGP Pro slot 4X/2X (1.5V/3.3V) device

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support

5 PCI slots support 33MHz & PCI 2.2 compliant

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1 AMR (Audio Modem Riser) slot

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IDE 1and IDE 2 Supports PIO mode 3, 4 UDMA 33 /

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ATA 66 / ATA100 IDE & ATAPI CD-ROM

IDE 3 and IDE 4 Compatible with Raid, Ultra ATA100,

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Ultra ATA66, Ultra ATA33, EIDE

4 IDE bus master IDE ports for up to 8 ATAPI devices

y

To be continued…

On-Board Peripherals

Hardware Monitor

On-Board Sound

On-Board LAN PS/2 Connector

BIOS Additional Features

Features Summary

1 Floppy port supports 2 FDD with 360K, 720K, 1.2M,

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1.44M and 2.88M bytes 1 Parallel port supports Normal/EPP/ECP mode

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2 Serial ports ( COM A & COM B)

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6 USB ports (Back USB*2, Front USB*2, USB AGP*1,

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USB AMR*1)

1 IrDA connector for IR/CIR

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CPU/Power Fan Revolution detect

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CPU Fan Control

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CPU temperature detect

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with Thermal Diode)

System Voltage Detect

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Chassis Intrusion Detect

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Display Actual Current Voltage

y

Creative CT5880 sound (Optional)

y

AC’97 CODEC

y

Line In/Line Out/Mic In/AUX In (Optional)/CD In/

y

TEL (Optional)/Game Port

SPDIF and Four Speaker (Optional)

y

MAC Build in VT8233

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LSI 80223 PHY (Optional)

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PS/2 Keyboard interface and PS/2 Mouse interface

y

Licensed AMI BIOS, 2M bit Flash ROM

y

Support Dual BIOS (Optional)

y

Internal/External Modem wake up

y

STR (Suspend-To-RAM)

y

Wake On LAN

y

PS/2 Keyboard any key power on

y

PS/2 Mouse power on

y

System after AC back

y

Poly fuse for keyboard, USB, game port over- current

y

protection

USB KB/MS wake up from S3

y

Support @BIOS™ and EasyTune

y

(This function is available on CPU

™

III

6RX Series Motherboard

6RX Series Motherboard Layout

SW4

PS/2

JP17

JP9

LAN

USB

J10

JP13

JP4

JP3

COM A COM B

AC97

JP30

Creative

CT5880

JP12

DIMM3

VT8233

JP14

BACK Up

DIMM4

BIOS

JP11

JP19

J13

JP22

J12

BAT1

IDE1

LED1

JP7

JP8

IDE4

IDE3

CN9

FLOPPY

IDE2

J11

JP1

ATX POWER

AMR

AGP2

JP21

Socket 370

CPU

JP5

VT8633

DIMM2

DIMM1

CN11

6RX

SW1

JP15

MAIN BIOS

JP6

BZ1

JP16

J14

LPT

JP2

GAME & Audio

PCI1

PCI2

PCI3

PCI4

PCI5

Installation Guide

Getting Started

WARNING!

Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. To protect them against damage from static electricity, you should follow some precautions whenever you work on your computer.

1. Unplug your computer when working on the inside.

2. Use a grounded wrist strap before handling computer components. If you do not have one, touch both of your hands to a safely grounded object or to a metal object, such as the power supply case.

3. Hold components by the edges and try not touch the IC chips, leads or connectors, or other components.

4. Place components on a grounded antistatic pad or on the bag that came with the components whenever the components are separated from the system.

5. Ensure that the ATX power supply is switched off before you plug in or remove the ATX power connector on the motherboard.

Installing the motherboard to the chassis…

If the motherboard has mounting holes, but they don’t line up with the holes on the base and there are no slo ts to attach the spacers, do not become alarmed you can still attach the spacers to the mounting holes. Just cut the bottom portion of the spacers (the spacer may be a little hard to cut off, so be careful of your hands). In this way you can still attach the motherboard to the base without worrying about short circuits. Sometimes you may need to use the plastic springs to isolate the screw from the motherboard PCB surface, because the circuit wire may be near by the hole. Be careful, don’t let the screw contact any printed circuit write or parts on the PCB that are near the fixing hole, otherwise it may damage the board or cause board malfunctioning.

6RX Series Motherboard

To set up your computer, you must complete the following steps:

Step 1 - Set system jumpers Step 2- Install the Central Processing Unit (CPU) Step 3-Install memory modules Step 4-Install expansion cards Step 5-Connect ribbon cables, cabinet wires, and power supply Step 6-Set up BIOS software Step 7-Install supporting software tools

Step 2

Step 3

Step 5

Step 4

Step 5

Step 1

Installation Guide

CPU Speed Setup

The system bus frequency can be switched at 66MHz - 166MHz and Auto by adjusting SW 1. (The frequency ratio depend on CPU).

SW1 Select the System Speed at 66MHz - 166MHz and Auto. O: ON, X: OFF

CPU AGP 1 2 3 4 5 6 7 8

Auto 66.67 X X X X X X X X

66.8 66.8 O O O X X O O O 75 75 O O O X O X X O 78 78 O O O X O O X X 90 60 O O X X O O O X

100.2 66.8 O O X X X O O X 105 70 O O X X O O O O 110 73.3 O O X X X X X O 115 76.67 O O X X X O X O 124 62 O X X O O O X X 130 65 O X X O O O X O

133.4 66.7 O X X X X O X X 136 68 O X X O O O O X 140 70 O X X O O O O O 145 72.5 O X X O X X X X 150 75 O X X O X X X O 160 80 O X X O X X O X 166 83 O X X O X X O O

We recommend you to setup your system speed to Auto.

¼¼¼¼

CPU Vcore Voltage Setup

SW4 Select the CPU Voltage at 1.30V – 2.05V and Auto. O: ON, X: OFF

Vcore 1 2 3 4 5 6

1.3 X X X X O O

1.35 O X X X O O

1.4 X O X X O O

1.45 O O X X O O

6RX Series Motherboard

Vcore 1 2 3 4 5 6

1.5 X X O X O O

1.55 O X O X O O

1.6 X O O X O O

1.65 O O O X O O

1.7 X X X O O O

1.75 O X X O O O

1.8 X O X O O O

1.85 O O X O O O

1.9 X X O O O O

1.95 O X O O O O 2 X O O O O O

2.05 O O O O O O

Auto X X X X X X

We recommend you to setup your vcore to Auto.

¼¼¼¼

CPU Installation

Please make sure the CPU type and speed is supported by your motherboard.

Installation Guide

CPU Top View

CPU Bottom View

Socket Actuation Lever

1.Pull the lever out and lift it up.

CPU Heat Sink Installation:

Beware: Please check that the heat sink is in good contact with the CPU before you turn on your

Poor contact will cause over heat with might cause damage to your

system.

processor!

2.The notched corner should point toward the end of the lever. The CPU will only fit in the orientation as shown.

6RX Series Motherboard

3.Align CPU and insert it (Please refer to your heatsink installation

manual for application of thermal grease to provide better heat conduction between your CPU and heatsink.)

5.Hook one end of the cooler bracket to the CPU socket.

6. Hook the other end of the cooler bracket to the CPU socket. (Please refer to the cooler’s installation manual for detailed installation steps)

4.Use compliant fan approved by Intel.

Installation Guide

Memory Installation

The motherboard has 4 dual inline memory module (DIMM) sockets. The BIOS will automatically detects memory type and size. To install the memory module, just push it vertically into the DIMM Slot .The DIMM module can only fit in one direction due to the notch. Memory size can vary between sockets.

Total Memory Sizes With Registered DDR DIMM

Devices used on DIMM 64 Mbit

(4Mx4x4 banks) 64 Mbit

(2Mx8x4 banks) 64 Mbit

(1Mx16x4 banks) 128 Mbit

(8Mx4x4 banks) 128 Mbit

(4Mx8x4 banks) 128 Mbit

(2Mx16x4 banks) 256 Mbit

(16Mx4x4 banks) 256 Mbit

(8Mx8x4 banks) 256 Mbit

(4Mx16x4 banks) 512 Mbit

(16Mx8x4 banks) 512 Mbit

(8Mx16x4 banks)

1 DIMM x64/x72

256 MBytes 512 MBytes 768 MBytes 1 GBytes

128 MBytes 256 MBytes 384 MBytes 512 MBytes

64 MBytes 128 MBytes 192 MBytes 256 MBytes

512 MBytes 1 GBytes 1.5 GBytes 2 GBytes

256 MBytes 512 MBytes 768 MBytes 1 GBytes

128 MBytes 256 MBytes 384 MBytes 512 MBytes

1 GBytes 2 GBytes 3 GBytes 4 GBytes

512 MBytes 1 GBytes 1.5 GBytes 2 GBytes

256 MBytes 512 MBytes 768 MBytes 1 GBytes

1 GBytes 2 GBytes 3 GBytes 4 GBytes

512 MBytes 1 GBytes 1.5 GBytes 2 GBytes

2 DIMMs

x64/x72

3 DIMMs

x64/x72

4 DIMMs

x64/x72

6RX Series Motherboard

Total Memory Sizes With Unbuffered DDR DIMM

Devices used on DIMM 64 Mbit

(2Mx8x4 banks) 64 Mbit

(1Mx16x4 banks) 128 Mbit

(4Mx8x4 banks) 128 Mbit

(2Mx16x4 banks) 256 Mbit

(8Mx8x4 banks) 256 Mbit

(4Mx16x4 banks) 512 Mbit

(16Mx8x4 banks) 512 Mbit

(8Mx16x4 banks)

1 DIMM x64/x72

128 MBytes 256 MBytes 384 MBytes 512 MBytes

64 MBytes 128 MBytes 192 MBytes 256 MBytes

256 MBytes 512 MBytes 768 MBytes 1 GBytes

128 MBytes 256 MBytes 384 MBytes 512 MBytes

512 MBytes 1 GBytes 1.5 GBytes 2 GBytes

256 MBytes 512 MBytes 768 MBytes 1 GBytes

1 GBytes 2 GBytes 3 GBytes 4 GBytes

512 MBytes 1 GBytes 1.5 GBytes 2 GBytes

2 DIMMs

x64/x72

3 DIMMs

x64/x72

4 DIMMs

x64/x72

Installation Guide

DDR

1. The DIMM slot has a notch, so the DIMM memory module can only fit in one direction.

2. Insert the DIMM memory module vertically into the DIMM slot. Then push it down.

3. Close the plastic clip at both edges of the DIMM slots to lock the DIMM module.

Reverse the installation steps when you

wish to remove the DIMM module.

DDR Introduction

Established on the existing SDRAM industry infrastructure, DDR (Double Data Rate) memory is a high performance and cost-effective solution that allows easy adoption for memory vendors, OEMs and system integrators.

DDR memory is a sensible evolutionary solution for the PC indust ry that builds on the existing SDRAM infrastructure, yet makes awesome advances in solving the system performance bottleneck by doubling the memory bandwidth. DDR SDRAM will offer a superior solution and migration path from existing SDRAM designs due to its availability, pricing and overall market support. PC2100 DDR memory (DDR266) doubles the data rate through reading and writing at both the rising and falling edge of the clock, achieving data bandwidth 2X greater than PC133 when running with the same DRAM clock frequency. With peak bandwidth of 2.1GB per second, DDR memory enables system OEMs to build high performance and low latency DRAM subsystems that are suitable for servers, workstations, high-end PC’s and value desktop SMA systems. With a core voltage of only 2.5 Volts compared to conventional SDRAM's 3.3 volts, DDR memory is a compelling solution for small form factor desktops and notebook applications.

6RX Series Motherboard

Page Index for Connectors/Panel and Jumper Definition Page Connectors P.17 ATX Power P.17 COM A / COM B / LPT Port P.17 CN7 (PS/2 Keyboard & PS/2 Mouse Connector) P.18 CN9 (Front USB Connector) [Optional] P.19 CN10 (USB & LAN Connector) [LAN Connector is optional] P.18 CN11 (ATX +12V Power Connector) [Optional] P.25 Floppy Port P.19 Game & Audio Port P.20 IDE1 (Primary) / IDE2 (Secondary) Port P.20 IDE3 / IDE4 (Raid / ATA100) Port [Optional] P.21 J1 (CPU FAN) P.25 J3 (AUX_IN) [Optional] P.22 J4 (CD Audio Line In) P.21 J5 (TEL) [Optional] P.22 J8 (Ring Power On) P.23 J9 (Wake On LAN) P.26 J10 (Power FAN)

P.24 J11 (System FAN) P.24 J12 (SCR) [Optional] P.28 J13 (External SMBUS Device Connector) [Optional] P.23 J14 (IR/CIR) [Optional] P.27 JP2 (Front Audio) [Optional] P.27 JP7 / LED1 (STR LED Connector & DIMM LED) P.26 Panel and Jumper Definition P.29 BAT 1(Battery) P.38 J7 (2x11 pins jumper) P.29 JP1 (Clear CMOS Function) P.30 JP3 (SPDIF Auto Detection) [Optional] P.32 JP4 (Front MIC Selection) [Optional] P.33 JP5&JP30 (AMR and onboard CODEC Select) [Optional] P.33 JP6 (Internal Buzzer Connector) [Optional] P.30 JP8 (Case Open) P.36 JP9 (PS/2 Keyboard Power On) P.35 JP11 (Front USB Device Wake Up Selection) P.37 JP12 (PCI Sound Function Selection) [Optional] P.36 JP13 (STR Selection) P.38

Installation Guide

JP14 (BIOS Write Protection) [Optional] P.35 JP15 (IDE Raid Selection) [Optional] P.34 JP16 (Raid/ATA100 Selection) [Optional] P.34 JP17 (Rear USB Device Wake up Selection) P.37 JP19 (DIMM Over Voltage Selection) P.31 JP21 (LAN Wake Up Selection) [Optional] P.32 JP22 (Chipset Over Voltage Selection) P.31

6RX Series Motherboard

Connectors

ATX Power

Pin No. Definition

3,5,7,13,15-17 GND

1,2,11 3.3V

4,6,19,20 VCC

10 +12V 12 -12V

18 -5V

8 Power Good 9 5V SB (stand by+5V)

14 PS-ON(Soft On/Off)

Please note:

AC power cord should only be inserted to your power supply unit after ATX power cable and other related devices are firmly connected to the mainboard.

COM A / COM B / LPT Port

Please note:

This mainboard supports 2 standard COM ports and 1 LPT port. Device like printer can be connected to LPT port ; mouse and modem etc can be connected to COM ports.

LPT Port

COM A

COM B

Connectors

CN7: PS/2 Keyboard & PS/2 Mouse Connector

PS/2 Mouse

PS/2 Mouse/ Keyboard Pin No. Definition

1 Data 2 NC 3 GND 4 POWER

1 2

PS/2 Keyboard

Please note:

This mainboard supports standard PS/2 keyboard and PS/2 mouse interface connector.

5 Clock 6 NC

CN10: USB & LAN Connector (LAN Connector is optional)

5 6

1 2 3 4

1 – Green LED (100Mbit/s LED) 2 – Yellow LED (LAN Active LED)

Pin No. Definition

1 USB Power 2 USB D0-

3 USB D0+ 4 GND 5 USB Power 6 USB D17 USB D1+ 8 GND

Please note:

Before you connect your device(s) into USB connector(s), please make sure your device(s) has a standard USB interface like, USB keyboard, mouse, scanner, zip, speaker… Also make sure your OS supports USB controller (Win 95 w/ USB supperment, Win98, Windows 2000, Windows ME, Win NT w/ SP 6). If your OS does not support USB controller, please contact OS vander for passible patch or driver upgrade. For more information please contact your OS or device(s) vanders.

6RX Series Motherboard

CN9: Front USB Connector (Optional)

Please note:

Be careful with the polarity of the front panel USB connector. Check the pin assignment while you connect the front panel USB cable. Please contact your nearest dealer for optional front panel USB cable.

Floppy Port

Pin No. Definition

1 POWER 2 GND 3 USB D24 NC 5 USB D2+ 6 USB D3+ 7 NC 8 USB D39 GND

10 POWER

RED LINE

Please note:

Remove the smart card reader cable before you plug Floppy B, you cannot use Floppy B and smart card reader simultaneously.

Connectors

Game & Audio Port

Line Out 1

Please note:

Line Out 1: Line Out or SPDIF (The SPDIF output is capable of providing digital audio to external speakers or compressed AC3 data to an external Dolby digital decoder). To enable SPDIF, simply insert SPDIF connector into Line Out1. Line Out1 will become SPDIF Out automatically. (see page 57 for more information). To enable Four Speaker (for Creative 5880 audio only), simply follow instructions on page 54 and Line In will become Line Out2 to support second pair of stereo speakers.

IDE1 (Primary), IDE2 (Secondary) Port

Game

Port

MIC In

Line In/Line Out 2

RED LINE

IDE 1

IDE 2

6RX Series Motherboard

IDE3/IDE4 (Raid/ATA100) Port (Optional)

RED LINE

J4: CD Audio Line In

Pin No. Definition

1 CD-L 2 GND 3 GND 4 CD-R

IDE 4

IDE 3

Connectors

J3: AUX_IN (Optional)

Pin No. Definition

1 AUX-L 2 GND 3 GND 4 AUX-R

J5: TEL (The connector is for internal modem card with voi ce connector )

(Optional)

Pin No. Definition

1 Signal-In 2 GND 3 GND 4 Signal-Out

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