Gigabyte GA-6CXB7 User Manual

Phone/Fax No: (818) 854- 9338/ [phone]

hereby declare s that the product

Product Name:

Model Number:

Mother Board

Signature:

Date: Mar. 13,2000

GA- 6CXB7

FCC Compliance Statement:

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2. 1077(a)

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

Address: 18305 Valley Blvd., Suite#A

LA Puent, CA 91744

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 harmful
and (2) this device must accept any inference received, including
that may cause undesired operation.

Representative Person's Name: ERIC LU

Eric Lu

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

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
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

You are cautioned that any change or modifications to the equipment not
expressly approve by the party responsible fo r 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.

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

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-6CXB7

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 : Mar. 13, 2000 Name : Rex Lin

(Stamp)

Manufacturer/Importer

:

Rex Lin

6CXB7 Series

100 /133 MHz Pentium II/ !!!

Socket 370 Processor Motherboard

USER'S MANUAL

Socket 370 Processor Motherboard

REV. 1.1 Second Edition

R-11-02-000426

How This Manual Is Organized

This manual is divided into the following sections:

1) Revision List 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 Instructions on setting up the BIOS

software

9) Appendix

General reference

Table Of Content

Revision History P.1
Item Checklist P.2
Summary of Features P.3
6CXB7 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.53
Appendix P.82

6CXB7 Series Motherboard

Revision History

Revision Revision Note Date

1.1 Initial release of the 6CXB7 Series motherboard user’s
manual.

1.1 Second release of the 6CXB7 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. 26, 2000 Taipei, Taiwan, R.O.C

Apr.2000
Apr.2000

1

Item Checklist

þ The 6CXB7 Series Motherboard
þ Cable for IDE / Floppy device
þ CD (IUCD) for motherboard utilities
o Internal COM B Cable (Optional)
o Internal USB Cable (Optional)
o Cable for SCSI device
þ 6CXB7 Series User’s Manual

þ CRIMM Module

Item Checklist

2

6CXB7 Series Motherboard

82801AA PCI chipset

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

Summary Of Features

Form factor Ÿ 30.5 cm x 24.3 cm ATX size form factor, 4 layers PCB.
Motherboard
CPU Ÿ 100/133 MHz Pentium II/!!! Socket 370 Processor

Chipset Ÿ 82820 HOST / AGP / RDRAM Controller

Clock Generator Ÿ Supports 100 / 133MHz
Memory Ÿ 3 168-pin DIMM Sockets
I/O Control Ÿ ITE IT8712 LPC

Slots Ÿ 1 AMR (Audio Modem Riser) slot

On-Board IDE Ÿ An IDE controller on the Intel

On-Board
Peripherals

Hardware Monitor
(Optional)

PCI to ISA Bridge Ÿ ITE8888

Ÿ 6CXB7 series includes 6CXB7, 6CXB7-1

Intel Pentium

Ÿ 2nd cache in CPU (Depend on CPU)
Ÿ 82801AA(ICH) I/O Controller Hub

Ÿ 82805AA(MTH) Memory Translator Hub



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

122/142/150/159 MHz clocks (reserved)

Ÿ 2 184-pin RIMM Sockets

Ÿ 1 Universal AGP Pro slot 1X/2X/4X 1.5V/3.3V /12V

device support

Ÿ 5 32-bit Master PCI Bus slots
Ÿ 1 16-bit ISA Bus slot (Optional)



provides IDE HDD/ CD-ROM with PIO, Bus Master
(Ultra DMA33/ATA66) operation modes

Ÿ Can connect up to four IDE devices

Ÿ

1.44M and 2.88M bytes

Ÿ 1 Parallel ports supports EPP/ECP mode
Ÿ 2 Serial ports (COM A & COM B)
Ÿ 4 USB ports (Front USB port optional for 6CXB7)
Ÿ 1 IrDA connector for IR/CIR (Optional)
Ÿ CPU/Power Supply/System Fan Revolution detect
Ÿ CPU Fan Control
Ÿ System Voltage Detect
Ÿ CPU Overheat Warning
Ÿ Chassis Intrusion Detect
Ÿ Display Actual Current Voltage

To be continued…

3

Summary of Features

On-Board Sound

PS/2 Connector Ÿ PS/2 Keyboard interface and PS/2 Mouse interface
BIOS Ÿ Licensed AMI BIOS, 4M bit FWH

Additional Features Ÿ Internal/External Modem wake up

Ÿ Creative CT5880 sound (Optional)
Ÿ AC’97 CODEC
Ÿ Line In/Line Out/Mic In/AUX In/CD In/TEL/Game Port
Ÿ SPDIF and Four Speaker(Optional)

Ÿ Support Dual BIOS(Optional)
Ÿ STR (Suspend-To-RAM)

Ÿ Wake On LAN
Ÿ PS/2 Keyboard password power on
Ÿ PS/2 Mouse power on
Ÿ System after AC back
Ÿ Poly fuse for keyboard, USB, game port over-

current protection

Ÿ USB KB/MS wake up from S3

4

6CXB7 Series Motherboard

LED1

6CXB7 Series Motherboard Layout

PS/2

JP4

USB

JP2

COM A COM B

LPT

PGA 370

CPU

J3

JP7

JP3

J2

JP1

ATX POWER

FLOPPY

JP8

GAME & Audio

J7

J6

J5

AMR

AC97

PCI1

PCI2

PCI3

CT5880

PCI4

PCI5

ISA1

JP10

AGP PRO

J13

JP20

MCH

82820

6CXB7

J14

MTH

82805

IDE1

JP11

JP13

JP19

DIMM2

IR/CIR

FP USB

JP18

J15

J10

J11

JP14

BZ1

IDE2

DIMM3

J19

J17

J16

RIMM1

RIMM2

SW1

JP21

IT8888

JP9

JP16

BAT1

ICH

82801

JP17

Main

BIOS

Backup

BIOS

DIMM1

5

6CXB7 Series Motherboard Layout

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

CPU Speed Setup

Page

P.8
Connectors P.10
Game & Audio Port P.10
COM A / COM B / LPT Port P.10
CN2 (USB Connector)(Back) P.11
PS/2 Keyboard & PS/2 Mouse Connector P.11
J3 (CPU FAN) P.12
J2 (Power FAN)

P.12
J11 (System FAN) P.13
ATX Power P.13
Floppy Port P.14
IDE (Primary/ Secondary) Port P.14
J12 (IR/CIR) [Optional] P.15
CN9: FP USB Connector (Front)[Optional] P.15
JP3 (STR LED Connector)& LED1 (DIMM /RIMM LED) P.16
J5 (AUX_IN) P.16
J7 (CD Audio Line In) P.17
J6 (TEL) P.17
J13 (Wake On LAN) P.18
J14 (Ring Power On) P.18
J10 (External SMBUS Device Connector) [Optional] P.19
J16 (Smart Card Reader Port) [Optional] P.19
J17 (Front Panel Connector)[For NEC] P.20
J19 (Front USB Connector)p[Optional for NEC P.20
Panel and Jumper Definition P.21
J15 (2x11 pins jumper) P.21
JP4 (Back) (USB Device Wake up Selection) P.22
JP2 (PS/2 Keyboard Power On) P.22
JP1 (STR Selection) P.23
JP8 (Case Open) P.23
JP20 (Onboard Sound Function Selection) [Optional] P.24
JP17 (Top Block Lock) [Optional] P.24
JP11 (Clear CMOS Function) [Optional] P.25
JP18 (Safe mode/Recovery/Normal) P.25
JP13 (Timeout Reboot Function) [Optional] P.26

To be continued…

6

6CXB7 Series Motherboard

JP14 (Front) (USB Device Wake Up Selection) [Optional] P.26
JP7 (Over Voltage CPU Speed Up) [Optional] P.27
JP16 (FWH Write Protection) [Optional] P.27
JP19 (Internal Buzzer Connector) [Optional] P.28
JP10 (AMR Select) [Optional] P.28
JP9 (Over Clock Voltage Control) [Optional] P.29
BAT 1(Battery) P.29

7

CPU Speed Setup

CPU Speed Setup

The system bus frequency can be switched at 100MHz and 133MHz by adjusting SW 1/JP21.
The CPU Frequency is control by BIOS.

SW1/JP21 Select the System Speed at 100MHz and 133MHz.

CPU CLK

100/133

AUTO

100.3 100.3 66.87 2-3 X ○ ○ X ○ ○

100.9 100.9 67.27 2-3 X ○ ○ X X ○

116.1 116.1 77.40 2-3 X X ○ ○ ○ ○

133.3 133.3 66.65 2-3 X X ○ X ○ ○

133.0 99.75 66.50 2-3 X ○ ○ ○ ○ X

133.9 100.425 66.95 2-3 X ○ ○ ○ X X

138.0 103.5 69.00 2-3 X ○ ○ X ○ X

142.0 106.5 71.00 2-3 X ○ ○ X X X

146.0 109.5 73.00 2-3 X ○ X ○ ○ X

150.0 112.5 75.00

153.0 114.75 76.50

156.0 117 78.00

SDRAM

103 103 68.67 2-3 X ○ ○ ○ ○ ○
105 105 70.00 2-3 X ○ ○ ○ X ○

107 107 71.33 2-3 X ○ X ○ ○ ○
109 109 72.66 2-3 X ○ X ○ X ○
112 112 74.67 2-3 X ○ X X ○ ○
114 114 76.00 2-3 X ○ X X X ○

118 118 78.67 2-3 X X ○ ○ X ○

120 120 80.00 2-3 X X ○ X X ○
122 122 81.33 2-3 X X X ○ ○ ○
125 125 83.40 2-3 X X X ○ X ○
128 128 85.47 2-3 X X X X ○ ○
130 130 86.67 2-3 X X X X X ○

AGP CLK JP21

CLK

100 66.6 1-2

2-3
2-3
2-3

1 2 3 4 5 6

○

X

X ○ X ○ X X
X ○ X X ○ X
X ○ X X X X

SW1

○

X

○

○

8

6CXB7 Series Motherboard

CPU CLK

(O: ON / X: OFF)

F

For Auto Jumper Setting:

SDRAM

CLK

159.1 119.325 79.55

162.0 121.5 81.00

165.0 123.75 82.50

168.0 126 84.00

171.0 128.25 85.50

174.0 130.5 87.00

177.0 132.75 88.50

180.0 135 90.00

ON

SW1

AGP CLK JP21

1 2 3 4 5 6

2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-3

SW1

1 2 3 4 5 6
X X ○ ○ ○ X
X X ○ ○ X X
X X ○ X ○ X
X X ○ X X X
X X X ○ ○ X
X X X ○ X X
X X X X ○ X
X X X X X X

JP21

1

«

Note:

1. If you use 100/133 MHz CPU, We recommend you to setup your system speed to
“Auto” value.

2. We don’t recommend you to set up your system speed to 122 , 142 , 150 ,159 MHz
because these frequencies are not the standard specifications for CPU, Chipset and
most of the peripherals. Whether your system can run under 122 , 142 , 150 ,159 MHz
properly will depend on your hardware configurations: CPU, SDRAM, Cards, etc.

**If you want to set up your system speed to 122, 142, 150,159 MHz, you must change

the Jumper JP9 from 2-3 close to 1-2 close.

9

Connectors

Game & Audio Port

Connectors

Game

Port

COM A / COM B / LPT Port

Line Out 1

MIC In

Line In

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.

LPT Port

COM A

COM B

10

6CXB7 Series Motherboard

2

3

CN2: USB (Back) Connector

8 7 6 5

1

3 4

PS/2 Keyboard & PS/2 Mouse Connector

PS/2 Mouse

Pin No. Definition

1 USB V0
2 USB D0­3 USB D0+
4 GND
5 USB V1
6 USB D1­7 USB D1+
8 GND

6

4

5

1 2

PS/2 Keyboard

PS/2 Mouse/ Keyboard

Pin No.

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

11

J3: CPU FAN

J2: Power FAN

Connectors

1

Pin No. Definition

1 GND
2 +12V
3 SENSE

1

Pin No. Definition

1 Control
2 +12V
3 SENSE

12

6CXB7 Series Motherboard

10

11

J11: System FAN

ATX Power

1

Pin No. Definition

1 Control
2 +12V
3 SENSE

20

Pin No. Definition

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

1,2,11 3.3V

4,6,19,20 VCC

10 +12V
12 -12V

1

18 -5V

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

14 PS-ON(Soft On/Off)

13

Floppy Port

IDE 1

Connectors

Red Line

IDE1 (Primary), IDE2 (Secondary) Port

IDE 2

Red Line

14

6CXB7 Series Motherboard

J12:IR/CIR (Optional)

1

6

5

Pin No. Definition

1 VCC
2 NC
3 IRRX
4 GND
5 IRTX
6 NC
7 CIRRX
8 VCC
9 NC

10 NC

CN9: FP USB Connector (Front) (Optional)

Pin No. Definition

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

8

1

10

5
4

15

JP3: STR LED Connector & LED1: DIMM / RIMM LED

1

STR LED Connector External.

Connectors

J5: AUX IN

1

+

DIMM / RIMM LED

Pin No. Definition

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

16

6CXB7 Series Motherboard

1

J7: CD Audio Line In

1

Pin No. Definition

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

J6: TEL (The connector is for internal modem card with voice connector)

Pin No. Definition

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

17

J13: Wake on LAN

Connectors

1

Pin No. Definition

1 +5V SB
2 GND
3 Signal

J14: Ring Power On

1

Pin No. Definition

1 Signal
2 GND

18

6CXB7 Series Motherboard

J10: External SMBUS Device Connector (Optional)

1

Pin No. Definition

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

J16: Smart Card Reader Port (Optional)

Pin No. Definition

2 14

1

2,3,4,8,
9,13,14

13

1 VCC

NC

5 GPIO13
6 SCRRST

7 SCRCLK
10 GPIO12
11 GND
12 SCRPRES

19

J17: Front Panel Connector (For NEC)

2 18

1 17

Pin No. Definition

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

5,13, 8, 12 GND

6 PW
7 RST

9, 16 VCC

10 GN
11 IRRX

14, 17, 18 NC

15 IRTX

J19: Front USB Connector (Optional for NEC)

2 10

Connectors

1 9

Pin No. Definition

1 FNT_USB P1
2 VCC
3 GND
4 NC
5 FNT_USB P1#
6 FNT_USB P0
7 GND
8 FNT_USB P0#
9 GND

10 Key

20

6CXB7 Series Motherboard

HD

Panel And Jumper Definition

J15: For 2x11 Pins Jumper

GD

1

PW

RE

1

GN

1

S P K

P− P− P+

GN (Green Switch) Open: Normal Operation

Close: Entering Green Mode

GD (Green LED/STR LED) Pin 1: GN LED anode(+)/STR LED anode(+)

Pin 2: GN LED cathode(−)/STR 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

21

JP4: (Back) USB Device Wake up Selection
(USB Connector à CN2)

Pin No. Definition

1-2 close

(Back)USB Device
Wakeup Enabled

2-3 close (Back)USB Device

Wakeup Disabled
(Default)

(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”

CN2

enabled, and the jumper “JP4&JP14” 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.)

JP2: PS/2 Keyboard Power On

Panel and Jumper Definition

1

1

Pin No. Definition

1-2 close PS/2 Keyboard Power

on Enabled

2-3 close PS/2 Keyboard Power

on Disabled (Default)

22