Gigabyte GA-6CX7 User Manual

DECLARATION OF CONFORMITY

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

Address: 18305 Valley Blvd., Suite#A

LA Puent, CA 91744

hereby declares that the product

Model Number:

Class B Digital Device

and (2) this device must accept any inference received, including

FCC Compliance Statement:

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,
pursuant to Part 15 of the FCC rules. These
limits are designed to provide reasonable

Phone/Fax No: [phone]/ [phone]

Product Name:

Mother Board

Conforms to the following specifications:

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

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 harmful

that may cause undesired operation.

Representative Person's Name: ERIC LU

GA-6CX7

Signature:

Date: Feb. 29, 2000

Eric Lu

protection against harmful interference in
residential installations. This equipment
generates, uses, and can radiate radio
frequency energy, and if not installed and used
in accordance with the instructions, may cause
harmful interference to radio communications.
However, there is no guarantee that
interference 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 the equipment off and on, the
user is encouraged to try to 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 accept any interference received, including
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

EN 55011 Limits and methods of measurement EN 61000-3-2* Disturbances in supply systems caused

of radio disturbance characteristics of EN60555-2 by household appliances and similar

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

EN55013 Limits and methods of measurement EN61000-3-3* Disturbances in supply systems caused
of radio disturbance characteristics of EN60555-3 by household appliances and similar
broadcast receivers and associated electrical equipment “Voltage fluctuations”
equipment

EN 55014 Limits and methods of measurement EN 50081-1 Generic emission standard Part 1:
of radio disturbance characteristics of Residual, commercial and light industry
household electrical appliances,
portable tools and similar electrical EN 50082-1 Generic immunity standard Part 1:
apparatus Residual, commercial and light industry

EN 55015 Limits and methods of measurement EN 55081-2 Generic emission standard Part 2:
of radio disturbance characteristics of Industrial environment
fluorescent lamps and luminaries

EN 55020 Immunity from radio interference of EN 55082-2 Generic immunity standard Part 2:
broadcast receivers and associated Industrial environment
equipment

EN 55022 Limits and methods of measurement ENV 55104 Immunity requirements for household
of radio disturbance characteristics of appliances tools and similar apparatus
information technology equipment

DIN VDE 0855 Cabled distribution systems; Equipment EN 50091- 2 EMC requirements for uninterruptible

part 10 for receiving and/or distribution from power systems (UPS)

part 12 sound and television signals

declare that the product

Mother Board

GA-6CX7

is in conformity with

CE marking (EC conformity marking)

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

EN 60065 Safety requirements for mains operated EN 60950 Safety for information technology equipment

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

EN 60335 Safety of household and similar EN 50091-1 General and Safety requirements for
electrical appliances uninterruptible power systems (UPS)

Signature

Date: Feb. 29, 2000 Name : Rex Lin

(Stamp)

Manufacturer/Importer

:

Rex Lin

6CX7 Series

100/133 MHz Pentium II/!!!

Socket 370 Processor Motherboard

USER'S MANUAL

Socket 370 Processor Motherboard

REV. 1.1 Third Edition

R-11-03-000712

How This Manual Is Organized

This manual is divided into the following sections:

1) Revision History Manual revision information

2) Item Checklist Product item list

3) Features Product information & specification

4) Hardware Setup Instructions on setting up the motherboard

5) Performance & Block Diagram Product performance & block diagram

6) Suspend to RAM & Dual BIOS Instructions STR installation & Dual BIOS

7) Four Speaker & SPDIF Four Speaker & SPDIF introduction

8) BIOS Setup

9) Appendix

Instructions on setting up the BIOS
software

General reference

Table Of Contents

Revision History P.1
Item Checklist P.2
Summary of Features P.3
6CX7 Series Motherboard Layout P.5
Page Index for CPU Speed Setup/Connectors/Panel and Jumper Definition P.6
Performance List P.30
Block Diagram P.31
Suspend to RAM Installation P.32
Dual BIOS Introduction (Optional) P.38
Four Speaker & SPDIF Introduction (Optional) P.45
Memory Installation P.50
Page Index for BIOS Setup P.52
Appendix P.82

6CX7 Series Motherboard

Revision History

Revision Revision Note Date

1.0 Initial release of the 6CX7 Series motherboard user’s
manual.

1.1 Initial release of the 6CX7 Series motherboard user’s
manual.

1.1 Second release of the 6CX7 Series motherboard user’s
manual.

1.1 Third release of the 6CX7 Series motherboard user’s
manual.

The author assumes
document nor does the author make a commitment to update the information contained herein.
Third-

Feb.2000
Mar.2000
Mar.2000
Jul.2000

Jul. 12, 2000 Taipei, Taiwan, R.O.C

1

Item Checklist

þThe 6CX7 Series Motherboard
þCable for IDE / Floppy device
þCD (IUCD) for motherboard utilities
oInternal COM B Cable (Optional)
oInternal USB Cable (Optional)
oCable for SCSI device
þ6CX7 Series User’s Manual

þCRIMM Module

Item Checklist

2

6CX7 Series Motherboard

bit Master PCI Bus slots (Note: If both of Creative

Summary Of Features

Form factor Ÿ 30.5 cm x 20 cm ATX Size form factor, 4 layers PCB.
Motherboard Ÿ 6CX7 series includes 6CX7L, 6CX7, 6CX7-1
CPU Ÿ Socket 370 Processor

Ÿ 2nd cache in CPU (Depend on CPU)

Chipset Ÿ 82820 HOST / AGP / RDRAM Controller

Ÿ 82801AA(ICH) I/O Controller Hub

Clock Generator Ÿ Supports 100 / 133MHz

Ÿ 105/110/117/120/125/127/135/137/140/145/150 MHz

clocks (reserved)
Memory Ÿ 2 184-pin RIMM Sockets
I/O Control Ÿ Winbond W83627HF
Slots Ÿ 1 AMR (Audio Modem Riser) slot

Ÿ 1 Universal AGP slot

(1X / 2X / 4X 1.5V/3.3V device support)

Ÿ 5 32-

CT5800 and Intel 82559 chipsets are on board, you
have only 4 32-bit master PCI slots at PCI1~PCI4,
PCI5 will be slave PCI slot)

On-Board IDE

Ÿ An IDE controller on the Intel



82801AA (ICH) PCI
chipset provides IDE HDD/ CD-ROM with PIO, Bus
Master (Ultra DMA33/ATA66) operation modes

Ÿ Can connect up to four IDE devices

On-Board
Peripherals

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

1.44M and 2.88M bytes

Ÿ 1 Parallel ports supports EPP/ECP mode
Ÿ 2 Serial Ports (COM A & COM B)
Ÿ 2 USB ports (Front USB is optional for NEC)
Ÿ 1 IrDA connector for IR/CIR (Optional)

Hardware Monitor Ÿ CPU/Power Supply/System Fan Revolution detect

Ÿ CPU / Power / System Fan Control
Ÿ System Voltage Detect
Ÿ CPU Overheat Warning
Ÿ Chassis Intrusion Detect
Ÿ Display Actual Current Voltage

PS/2 Connector

Ÿ PS/2



Keyboard interface and PS/2 Mouse interface

To be continued…

3

6CX7 Series Motherboard Layout

BIOS
On-Board LAN

On-Board Sound Ÿ Creative CT5880 sound (Optional for 6CX7)

Additional Features Ÿ Internal/External Modem Wake up

Ÿ Licensed AMI BIOS, 4M bit FLASH ROM
Ÿ Support Dual BIOS (Optional)

Ÿ Intel
Ÿ Alert On LAN*2 ASIC (Optional)

Ÿ AC’97 CODEC
Ÿ Line In/Line Out/Mic In/AUX In/CD In/TEL/Game Port
Ÿ SPDIF/Four Speaker (Optional for 6CX7)

Ÿ STR (Suspend-To-RAM)
Ÿ Wake On LAN
Ÿ PS/2 Keyboard Password Wake up
Ÿ System after AC back
Ÿ Poly fuse for keyboard, USB, Game port over- current



GD 82559(Optional for 6CX7L)

protection

Ÿ PS/2 Mouse Power On
Ÿ USB KB/MS Wake Up from S3

4

6CX7 Series Motherboard

Game & Audio

COM B

COM A
LPT

IDE1

FLOPPY

IDE2

Backup

RIMM 1

LAN

RIMM 2

ATX Power

6CX7 Series Motherboard Layout

JP1

6CX7

MCH

82820

J1

PS/2

USB

J7

J8

JP3

J6

JP16

J15

JP11

AMR

JP29

PGA 370

CPU

LED1

JP18

JP2

JP15

J17

AC’97

Creative
CT5880

JP20

JP24

AOL*2

ASIC

Intel

82559

PCI1

PCI 2

PCI 3

PCI4

PCI 5

J2

J10

AGP

JP4

BIOS

Main
BIOS

BZ1

JP14

SW1

BAT1

J12

JP8

JP10

JP9

ICH

82801

JP6

CN9

JP28
JP27

J18

J14

JP5

J16

JP21

J11

5

6CX7 Series Motherboard Layout

$
Page Index for CPU Speed Setup/Connectors/Panel and Jumper Definition

Page

CPU Speed Setup P.8
Connectors P.9
Game & Audio Port P.9
COM A / COM B / LPT Port P.9
USB & LAN Connector (LAN is optional) P.10
PS/2 Keyboard & PS/2 Mouse Connector P.10
J1 (CPU Fan) P.11
J17 (Power Fan) P.11
J16 (System Fan) P.12
ATX Power P.12
IR/CIR (Optional) P.13
Floppy Port P.13
IDE 1(Primary)/ IDE 2(Secondary) Port P.14
J8 (AUX_IN) P.14
J6 (CD Audio Line In) P.15
J7 (TEL) P.15
J2 (Wake On LAN) P.16
J10 (Ring Power On) P.16
J15 (External SMBUS Device Connector) P.17
JP15 (STR LED Connector) & LED1 (RIMM LED) P.17
CN9 (FP USB)[For NEC] [Optional] P.18
J12 (Front Panel Jumper)[For NEC] P.18
J18 (AOL Connector) [For NEC] [Optional] P.19
Panel and Jumper Definition P.20
J11 (2x11 Pins Jumper) P.20
JP16 (PS/2 Keyboard Power On) P.21
JP3 (Back USB device Wake Up Selection)[Optional] P.21
JP4 (Clear CMOS Function) [Optional] P.22
JP5 (Safe mode / Recovery / Normal) P.22
JP6 (Timeout Reboot Function) [Optional] P.23
JP11 (AMR Select)[Optional] P.23
JP17 (Case Open) P.24
JP20 (Onboard Sound Function Selection) P.24
JP21 (Front USB device Wake Up Selection)[Optional] P.25
JP27/JP28 (USB Port Selection) P.25

6

6CX7 Series Motherboard

JP9 (Top Block Lock) [Optional] P.26
JP10 (FWH Write Protection) [Optional] P.26
JP14 (Internal Buzzer Connector) [Optional] P.27
JP18 (STR Enable) P.27
JP29 (Over Voltage CPU Speed Up)[Optional] P.28
JP1 (Cyrix CPU Turbo Function) [Optional] P.28
JP24 (Onboard LAN Function) [Optional] P.29
BAT1 (Battery) P.29

7

CPU Speed Setup

ON

ON

ON

CPU Speed Setup

The CPU bus frequency can be switched at 100MHz and 133MHz by adjusting JP8 & SW 1.
The CPU ratio selection is control by BIOS.

JP8 / SW1 Select the CPU Speed at 100MHz and 133MHz.

AGPCLK 66.6 73.3 80 66.6 70 75 66.6
CPUCLK 100 110 120 133 140 150 100/133/Auto

JP8 OFF OFF OFF OFF OFF OFF ON

1 O O O X X X X
2 O X X O X X O
3 X O X X O X X
4 O O X O X X O

(O: ON / X: OFF)

100MHz

133MHz

100/133/Auto

JP8

1

SW1

8

JP8

1

SW1

JP8

1

SW1

6CX7 Series Motherboard

Connectors

Game & Audio Port

Game

Port

Line Out 1

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). In general, Line Out 1 is normally Line Out,
when it output digital signal, it will be change to SPDIF
Out automatically (see page 47 for more information).
Line In: In general, Line In is normally Line In. When
you select “Four Speaker” in Creative application
(see page 45 for more information), Line In will be
change to Line Out 2, then you can plug 2 pairs stereo
speaker into Line Out 1 and Line In simultaneously.

COM A / COM B / LPT Port

MIC In

Line In

LPT Port

COM A

COM B

9

USB & LAN Connector (LAN is optional)

2

1

5
6

1 2

1 – Green LED
(LAN Link LED)
2 – Yellow LED
(LAN Active LED)

7

3

4

PS/2 Keyboard & PS/2 Mouse Connector

PS/2 Mouse

Pin No. Definition

1 USB V0

8

2 USB D0­3 USB D0+
4 GND
5 USB V1
6 USB D1­7 USB D1+
8 GND

Connectors

6

4

2

5

3

1

PS/2 Keyboard

PS/2 Mouse/ Keyboard

Pin No.

Definition
1 Data
2 NC
3 GND
4 VCC(+5V)
5 Clock
6 NC

10

6CX7 Series Motherboard

J1: CPU Fan

J17: Power Fan

1

Pin No. Definition

1 GND
2 +12V
3 SENSE

1

Pin No. Definition

1 GND
2 +12V
3 SENSE

11

J16: System Fan

ATX Power

1

Pin No. Definition

1 GND
2 +12V
3 SENSE

Pin No. Definition

20

10

1

3,5,7,13,

15-17
1,2,11 3.3V

4,6,19,20 VCC

10 +12V
12 -12V
18 -5V

11

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

14 PS-ON(Soft On/Off)

Connectors

GND

12

6CX7 Series Motherboard

IR/CIR (Optional)

Floppy Port

Pin No. Definition

1 VCC

6

10

2 NC
3 IRRX

1

5

4 GND
5 IRTX
6 NC
7 CIRRX
8 VCC
9 NC

10 NC

RED LINE

13

IDE1 (Primary), IDE2 (Secondary) Port

IDE 1

IDE 2

J8: AUX_IN

1

Pin No. Definition

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

Connectors

RED LINE

14

1

6CX7 Series Motherboard

J6: CD Audio Line In

1

Pin No. Definition

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

J7: TEL: The connector is for Modem with internal voice connector

Pin No. Definition

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

15

J2: Wake On LAN

J10: Ring Power On

Connectors

1

Pin No. Definition

1 +5V SB
2 GND
3 Signal

1

Pin No. Definition

1 Signal
2 GND

16

6CX7 Series Motherboard

J15: External SMBUS Device Connector

1

Pin No. Definition

1 SMB CLK
2 NC
3 GND
4 SMB DATA
5 +5V

JP15: STR LED Connector & LED1: RIMM LED

RIMM LED

+

1

STR LED Connector External

17

CN9: FP USB (For NEC)[Optional]

9 2 10

Pin No. Definition

1, 4,5,10 NC

3, 7, 9 GND

J12: Front Panel Jumper (For NEC)

1 17

Pin No. Definition

1 HD LED+
2 PWR LED+
3 HD LED­4 GN LED+

5,13, 8, 12

6 PW
7 RST

9, 16 VCC

10 GN
11 IRRX

14, 17, 18 NC

15 IRTX

Connectors

1

2 Power

6 USB D1+
8 USB D1-

2 18

GND

18

6CX7 Series Motherboard

J18: AOL Connector (For NEC)[Optional]

2

1 17

Pin No. Definition

1 SMB CLK
2 SMB DATA

3,8,13 NC

4 ICH-SCL
5 ICH-SDA

6,15,17 GND

7 PWRSTSW

9 THRMO­10 GPI10
11 Case open­12 3VSB
14 RSMRST­16 RESET
18 PWROK

18

19

Panel And Jumper Definition

J11: For 2x11 Pins Jumper

Panel and Jumper Definition

GN

1

1

HD

S P K

1

P−P−P+

GN (Green Switch) Open: Normal Operation

Close: Entering Green Mode

GD (Green LED) Pin 1: LED anode(+)

Pin 2: LED cathode(−)

HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)

Pin 2: LED cathode(−)

SPK (Speaker Connector) Pin 1: VCC(+)

Pin 2- Pin 3: NC
Pin 4: Data(−)

RE (Reset Switch) Open: Normal Operation

Close: Reset Hardware System

P+P−P−(Power LED)

Pin 1: LED anode(+)
Pin 2: LED cathode(−)
Pin 3: LED cathode(−)

PW (Soft Power Connector) Open: Normal Operation

Close: Power On/Off

1

PW

RE

1

GD

20

6CX7 Series Motherboard

JP16: PS/2 Keyboard Power On

1

Pin No. Definition

1-2 close PS/2 Keyboard Power on

Enabled

2-3 close PS/2 Keyboard Power on

Disabled (Default)

JP3: Back USB device Wake up Selection (Optional)
(USB Connector à CN1)

1

CN1

Pin No. Definition

1-2 close
2-3 close

(If you want to use “USB KB/MS Wakeup From S3” function, you
have to set the BIOS setting “USB KB/MS Wakeup From S3”
enabled, and the jumper “JP3&JP21” enabled).
*(Power on the computer and as soon as memory counting
starts, press <Del>. You will enter BIOS Setup. Select the
item “POWER MANAGEMENT SETUP”, then select “USB
KB/MS Wakeup From S3: Enabled”. Remember to save
the setting by pressing "ESC" and choose the “SAVE & EXIT
SETUP” option.)

Enabled Back USB Device
Wake up
Disabled Back USB Device
Wake up (Default)

21

JP4: Clear CMOS Function (Optional)

1

Pin No. Definition
1-2 close Clear CMOS
2-3 close Normal (Default)

JP5: Safe mode / Recovery / Normal

1

Panel and Jumper Definition

Pin No. Definition
1-2close Normal (Default)
2-3close Safe mode

1-2-3open

Recovery

22

6CX7 Series Motherboard

JP6: Timeout Reboot Function (Optional)

1

JP11: AMR Select (Optional)

Pin No. Definition

1-2close AMR Secondary
2-3close

Pin No.

Definition
Open Timeout Reboot
Close No Reboot on Timeout

1

AMR Primary
AC’97 Disabled (Default)
(Disabled Onboard CODEC)

23