Gigabyte GA-6CXC User Manual

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

hereby declare s that the product

Product Name:

Model Number:

Mother Board

Signature:

Date: Dec.03,1999

GA- 6CXC

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.

Address: 18305 Valley Blvd., Suite#A

LA Puent, CA 91744

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

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

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

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.

-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-6CXC

is in conformity with

CE marking (EC conformity marking)

The manufacturer also declares the conformity of above mentioned product

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

with the actual required safety standards in accordance with LVD 73/23 EEC

Date : Dec. 03, 1999 Name : Rex Lin

(Stamp)

Manufacturer/Importer

Rex Lin

:

6CXC/6CXC-1

Pentium II / III Processor

Motherboard

USER'S MANUAL

Pentium II / III Processor MAINBOARD

REV. 2.3 First Edition

R-23-01-091223

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) BIOS Setup Instructions on setting up the BIOS software

8) Appendix General reference

Table Of Content

Revision History P.1

Item Checklist P.2

Summary of Features P.3

6CXC/6CXC-1 Motherboard Layout P.5

Page Index for CPU Speed Setup / Connectors / Panel and Jumper Definition P.8

Performance List P.28

Block Diagram P.29

Suspend to RAM Installation P.30

Dual BIOS Introduction P.36

Memory Installation P.43

Page Index for BIOS Setup P.44

Appendix P.77

6CXC/6CXC -1 Motherboard

Revision History

Revision Revision Note Date

2.3 Initial release of the 6CXC/6CXC-1 motherboard user’s manual. Dec.1999

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.
Sound Blaster is a registered trademark of Creative Technology Ltd in the United States and
certain other countries. Sound Blaster-LINK and SB-LINK are trademarks of Creative
Technology Ltd.

Dec. 23 , 1999 Taipei, Taiwan, R.O.C

1

Item Checklist

þThe 6CXC/6CXC-1 Motherboard
þCable for IDE / Floppy device
þCD (IUCD) for motherboard utilities
oInternal COMB Cable (Optional)
oInternal USB Cable (Optional)
oCable for SCSI device
þ6CXC/6CXC-1 User’s Manual

Item Checklist

2

6CXC/6CXC -1 Motherboard

82801AA PCI chipset

Summary of Features

Form factor Ÿ 30.5 cm x 22 cm ATX SIZE form factor, 4 layers PCB.
CPU Ÿ Pentium

Ÿ 256/ 512 KB 2nd cache in CPU



II/III Processor

Chipset Ÿ 82820 HOST / AGP / RDRAM Controller

Ÿ 82801AA(ICH) I/O Controller Hub
Ÿ 82805AA(MTH) Memory Translator Hub

Clock Generator Ÿ Supports 100 / 133MHz

Ÿ 105/110/115/117/120/125/127/135/137/140/

145/150 MHz clocks (reserved)
Memory Ÿ 4 168-pin DIMM Sockets Support 4 banks.
I/O Control Ÿ Winbond W83627HF LPC
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-bit Master PCI Bus slots
Ÿ 1 16-bit ISA Bus slot (Optional)

On-Board IDE Ÿ An IDE controller on the Intel



provides IDE HDD/ CD -ROM with PIO, Bus Master and 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 SPP/EPP/ECP mode
Ÿ 2 Serial Ports (COMA & COMB)
Ÿ 4 USB ports (Front USB Port Optional)
Ÿ 1 IrDA connector for IR/CIR

Hardware Monitor
(Optional)

On-Board Sound
(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
Ÿ Aureal AU8810(Optional)
Ÿ Line In / Line Out / Mic In / AUX In / CD In / TEL / SPDIF

/ Game Port

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

To be continued…

3

BIOS Ÿ Licensed AMI BIOS, 4M bit FWH

Ÿ Support Dual BIOS (Optional)

Additional Features Ÿ Internal/External Modem Wake up

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

Summary of Features

4

6CXC/6CXC -1 Motherboard

6CXC/6CXC-1 Motherboard Layout

PS/2

USB

COM A COM B

JP3 JP27

LPT

SPDIF

JP31

CPU

MCH

82820

ATX POWER

MTH

82805

J1

J2

J21
JP2

JP1

FLOPPY

J19

AUREAL

W83627

GAME & Audio

AC97

J16

JP16

ISA1

AMR

JP9

J10

PCISLOT1

PCISLOT2

PCISLOT3

PCISLOT4

PCISLOT5

J14

JP28

AGP

6CXC

J15

ICH 82801

W83628F

DIMM1

JP13

SW1

JP15

JP33

JP18

DIMM2

BAT1

DIMM4

DIMM3

IDE1

IDE2

IR/CIR

Main

BIOS

BIOS

W836290

FP USB

JP24

J13

J9

JP32

BZ1

Backup

JP22

JP21

5

6CXC/6CXC -1 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
COMA / COMB / LPT Port P.9
USB Connector P.10
PS/2 Keyboard & PS/2 Mouse Connector P.10
J2 (CPU Cooling FAN Power Connector) P.11
J1 (Power Cooling FAN Power Connector)

P.11
J13 (System Cooling FAN Power Connector) P.12
ATX Power P.12
Floppy Port P.13
IDE (Primary/ Secondary) Port P.13
IR/CIR P.14
Front USB Port[Optional] P.14
JP2 (STR LED Connector& DIMM LED) P.15
J20 (SPDIF) [Optional] P.15
J19 (AUX_IN) P.16
J10 (CD Audio Line In) P.16
J16 (TEL) P.17
J14 (Wake On LAN) P.17
J15 (Ring Power On) P.18
J21 (External SMBUS Device Connector) P.18
Panel and Jumper Definition P.19
J9 (2x11 pins jumper) P.19
JP27 (Back USB Device Wake up Selection)[Optional] P.20
JP3 (PS/2 Keyboard Power On) P.20
JP1 (STR Selection) P.21
JP16 (Case Open) P.21
JP28 (Onboard Sound Function Selection) [Optional] P.22
JP15 (Top Block Lock) P.22
JP18 (Clear CMOS Function) P.23
JP21 (Safe mode/Recovery/Normal) P.23
JP22 (Timeout Reboot Function) P.24

6

6CXC/6CXC -1 Motherboard

JP31 (Over Voltage CPU Speed Up) [Optional] P.24
JP32 (Front USB Device Wake Up Selection) [Optional] P.25

7

6CXC/6CXC -1 Motherboard Layout

JP33 (FWH Write Protection) P.25
JP24 (Internal Buzzer Connector) [Optional] P.26
JP9 (AMR Select) [Optional] P.26
BAT 1(Battery) P.27

8

CPU Speed Setup

66.6

100.3

X ○ ○

X ○

73.3

110

X ○

X ○ ○

76.6

115

X ○

X ○ X 78

117

X ○ X X ○

80

120

X ○ X X X 83.3

125 X X ○ ○ ○

84.6

127 X X ○ ○ X 66.6

133.3 X X ○

X ○

67.5

135 X X ○ X X

68.5

137 X X

X ○ ○

70

140 X X

X ○ X 72.5

145 X X X X ○

75

150 X x X X

X

100/133

CPU Speed Setup

The system bus frequency can be switched at 100MHz and 133MHz by adjusting JP13 & SW 1. The
CPU Frequency is control by BIOS.

JP13 / SW1 Select the System Speed at 100MHz and 133MHz.

AGPCLK CPUCLK JP13 1 2 3 4

70 105 X

○ ○ ○ ○

66.6

(O: ON / X : OFF)

100/133/

Auto

○

X

○

100MHz

JP13

1

ON

SW1

9

X

1 2 3 4

○

133MHz

JP13

1

1 2 3 4

ON

SW1

Auto MHz

JP13

1

1 2 3 4

ON

SW1

6CXC/6CXC -1 Motherboard

Connectors

GAME & Audio Port

GAME

Port

COM A / COM B / LPT Port

Line Out

COM A

MIC In

Line In

LPT PORT

COM B

10

6CXC/6CXC -1 Motherboard

11

CN3 : USB Connector (Back)

1

2

3

8 7 6 5

3

4

PS/2 Keyboard & PS/2 Mouse Connector

Pin No. Definition

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

Connectors

PS/2 Mouse

PS/2 Mouse/ Keyboard

Pin No. Definition

6

4

5

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

1 2

PS/2 Keyboard

5 Clock
6 NC

12

6CXC/6CXC -1 Motherboard

13

J2:CPU Cooling FAN Power Connector

Pin No. Definition

1 Control
2 +12V
3 SENSE

J1:Power Cooling FAN Power Connector

Connectors

1

1

Pin No. Definition

1 Control
2 +12V
3 SENSE

14

6CXC/6CXC -1 Motherboard

J13: System Cooling FAN Power Connector

1

Pin No. Definition

1 Control
2 +12V
3 SENSE

ATX Power

101120

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

1

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

14 PS-ON(Soft On/Off)

15

Floppy Port

IDE 1

RED LINE

IDE1(Primary) , IDE2 (Secondary) Port

Connectors

RED LINE

IDE 2

16

6CXC/6CXC -1 Motherboard

5

IR/CIR

6
1

Pin No. Definition

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

10 NC

CN9 : USB Port Connector (Front) (Optional)

8
1

Pin No. Definition

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

10

5
4

17

Connectors

JP2 : STR LED Connector & DIMM LED

STR LED Connector External.

+

1

DIMM LED

J20 : SPDIF (The SPDIF output is capable of providing digital audio to
external speakers or compressed AC3 data to an external Dolby digital
decoder.) (Optional)

1

Pin No. Definition

1 VCC
2 SPDIF OUT
3 GND

18

6CXC/6CXC -1 Motherboard

1

J19 : AUX IN

J10 : CD Audio Line In

1

Pin No. Definition

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

Pin No. Definition

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

19

Connectors

J16 : TEL(The connector is for internal modem card with voice
connector)

1

Pin No. Definition

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

J14: Wake on LAN

1

Pin No. Definition

1 +5V SB
2 GND
3 Signal

20

6CXC/6CXC -1 Motherboard

J15: Ring Power On

Pin No. Definition

J21 : External SMBUS Device Connector

1

1 Signal
2 GND

1

Pin No. Definition

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

21

6CXC/6CXC -1 Motherboard

RE

1
1

Panel and Jumper Definition

J9 : For 2X11 Pins Jumper

GN

1

HD

S P K

1

PW P+ P − P−

1

GD

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(−)

SPKR (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

19

Panel and Jumper Definition

JP27 : Back USB Device Wake up Selection(Optional)
(USB Connector à CN3)

1

CN3

Pin No. Definition

1-2 close

USB Device
Wake up

2-3 close Normal (Default)

(If you want to use "USB KB/Mouse Wake from S3"
function, you have to set the BIOS setting "USB
KB/Mouse Wake from S3" enabled, and the jumper
"JP27" 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/Mouse Wake from S3: Enabled".
Remember to save the setting by pressing "ESC" and
choose the "SAVE & EXIT SETUP" option.)

JP3 : 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)

20