Gigabyte GA-6CX Manual

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

Phone/Fax No: (818) 8549338/ [phone]

hereby declare s that the product

Product Name: Mother Board

Model Number: GA6CX

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
Signature:	E r i c L u
Date:	Aug. 27, 1999

FCC Compliance Statement:

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 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

declare that the product

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

Mother Board

GA-6CX

is in conformity with

(reference to the specification under which conformity is declared) in accordance with 89/336 EEC -EMC Directive

EN 55011	Limits and methods of measurement
	of radio disturbance characteristics of
	industrial, scientif ic and medical (ISM
	high frequency equipment
EN55013	Limits and methods of measurement
	of radio disturbance characteristics of
	broadcast receivers and associated
	equipment
EN 55014	Limits and methods of measurement
	of radio disturbance characteristics of
	household electrical appliances,
	portable tools and similar electrical
	apparatus
EN 55015	Limits and methods of measurement
	of radio disturbance characteristics of
	fluorescent lamps and luminaries
EN 55020	Immunity from radio interference of
	broadcast receivers and associated
	equipment
EN 55022	Limits and methods of measurement
	of radio disturbance characteristics of
	information technology equipment
DIN VDE 0855	Cabled distribution systems; Equipment
part 10	for receiving and/or distribution from
part 12	sound and television signals

CE marking

EN 61000-3-2*	Disturbances in supply systems caused
EN60555-2	by household appliances and similar
	electrical equipment “Harmonics”
EN61000-3-3*	Disturbances in supply systems caused
EN60555-3	by household appliances and similar
	electrical equipment “Voltage fluctuations”
EN 50081-1	Generic emission standard Part 1:
	Residual, commercial and light industry
EN 50082-1	Generic immunity standard Part 1:
	Residual, commercial and light industry
EN 55081-2	Generic emission standard Part 2:
	Industrial environment
EN 55082-2	Generic immunity standard Part 2:
	Industrial environment
ENV 55104	Immunity requirements for household
	appliances tools and similar apparatus
EN 50091- 2	EMC requirements for uninterruptible
	power systems (UPS)

(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
	electronic and related apparatus for
	household and similar general use
EN 60335	Safety of household and similar
	electrical appliances

(Stamp)

EN 60950	Safety for information technology equipment
	including electrical business equipment
EN 50091-1	General and Safety requirements for
	uninterruptible power systems (UPS)

Manufacturer/Importer			Rex Lin
	Signature	:
Date : Aug. 27, 1999	Name	:		Rex Lin

6CX

Pentiumâ II/III Processor

Motherboard

USER'S MANUAL

Pentiumâ II/III Processor MAINBOARD

REV. 1.00 Second Edition

R-100-02-091216

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) BIOS Setup	Instructions on setting up the BIOS software
8) Appendix	General reference

Table of Contents

Revision History	P.1
Item Checklist	P.2
Summary of Features	P.3
6CX Motherboard Layout	P.5
Page index for CPU Speed Setup / Connectors / Panel and Jumper Definition	P.6
Performance List	P.27
Block Diagram	P.28
Suspend to RAM Installation	P.39
Dual BIOS Introduction	P.35
Memory Installation	P.42
Page index for BIOS Setup	P.44
Appendix	P.77

6CX Motherboard

Revision History

Revision	Revision Note	Date
1.00	Initial release of the 6CX motherboard user’s manual.	Nov.1999
1.00	Second release of the 6CX 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.

Dec. 16, 1999 Taipei, Taiwan, R.O.C

1

Item Checklist

Item Checklist

þThe 6CX Motherboard

þCable for IDE / Floppy device

þCD (IUCD) for motherboard utilities

oInternal COMB Cable oInternal USB Cable

oCable for SCSI device

þ6CX User’s Manual

þCRIMM Module

2

6CX Motherboard

Summary of Features

Form factor	Ÿ	30.5 cm x 20.5 cm ATX SIZE form factor, 4 layers PCB.
CPU	Ÿ	Pentiumâ II/III Processor
	Ÿ	256/ 512 KB 2nd cache in CPU
Chipset	Ÿ	82820 HOST / AGP / RDRAM Controller
	Ÿ	82801AA(ICH) I/O Controller 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	2 184-pin RIMM Sockets
I/O Control	Ÿ	Winbond W83627
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	â	82801AA (ICH) PCI chipset
		provides IDE HDD/ CD-ROM with PIO, Bus Master and Ultra
		DMA/33/66 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 Fast IrDA (Optional)
	Ÿ	1 CIR connector (Optional)
Hardware Monitor	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
PS/2 Connector	Ÿ	PS/2â Keyboard interface and PS/2â Mouse interface
BIOS	Ÿ	Licensed AMI BIOS, 4M bit FLASH ROM
	Ÿ	Support Dual BIOS

3

Summary of Features

To be continued…

Additional Features	Ÿ	Internal/External Modem Wake up
	Ÿ STR (Suspend-To-RAM)
	Ÿ	Wake On LAN
	Ÿ Keyboard Password Wake up
	Ÿ System after AC back
	Ÿ	Poly fuse for keyboard, USB, Game port overcurrent protection

4

6CX Motherboard

6CX Motherboard Layout

PS/2

USB

COMA

LPT

COMB

AUDIO & GAME

	J2	JP2
	JP1
		J1
		BAT1
	JP32
	JP27 JP3

JP31		PONER ATX	FLOPPY

SPDIF				CPU

MCH 82820

1 RIMM

2 RIMM

IDE2			IDE1

AUX_IN

AUREAL

W83627

AMR

JP9

AGP

CDIN

PCI SLOT1

TEL

PCI SLOT2

PCI SLOT3

WAKE ON LAN

PCI SLOT4

JP16					JP28		RING POW ON

PCI SLOT5

ISA

USB

JP13

J9 CIR

JP24

SW1

BZ1	J13

ICH				Backup
82801	JP15			BIOS
6CX				Main
					JP33
				BIOS

JP18		JP34
	JP21	JP22

5

6CX Motherboard Layout

6

6CX Motherboard

$
Page index for CPU Speed Setup / Connectors / Panel and Jumper	Page
Definition
CPU Speed Setup	P.8
Connectors	P.9
GAME & Audio Port	P.9
COMA / COMB / LPT Port	P.9
CN3(Back) USB Connector	P.10
PS/2 Keyboard & PS/2 Mouse Connector	P.10
CPU / Power / System Cooling FAN Power Connector	P.11
ATX Power	P.11
J8 (IR/CIR)[Optional]	P.12
FLOPPY Port	P.12
IDE 1(Primary)/ IDE 2(Secondary)Port	P.13
SPDIF[Optional]	P.13
AUX_IN	P.14
CD IN	P.14
TEL	P.15
Wake On LAN	P.15
Ring Power On	P.16
CN9 (Front) USB Port [Optional]	P.16
JP31 (External SMBUS Device Connector)	P.17
JP2 (STR LED Connector)	P.17
Panel and Jumper Definition	P.18
J9 (2x11 pins jumper)	P.18
JP3 (Keyboard Power On)	P.19
J27 (Back USB device Wake Up Selection)[Optional]	P.29
JP18 (Clear CMOS Function)	P.20
JP21 (Safe mode/ Recovery / Normal)	P.20
JP22 (Timeout Reboot Function)	P.21
JP9 (AMR Select)[Optional]	P.21
JP16 (CASE OPEN)	P.22
JP28 (Onboard Sound Function Selection)	P.22
JP33 (Front USB device Wake Up Selection)[Optional]	P.23
JP15 (Top Block Lock)	P.23
JP24 (Internal Buzzer Connector) [Optional]	P.24
7

	6CX Motherboard Layout
JP1 (STR Enable)		P.24
JP32 (Over Voltage CPU Speed Up)		P.25
JP34 (Write Protect)		P.25
BAT1 (Battery)		P.26

8

CPU Speed Setup

CPU Speed Setup

The CPU bus frequency can be switched between 100MHz and 133MHz by adjusting JP13 & SW 1. The CPU ratio selection is control by BIOS.

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

AGPCLK

CPUCLK

JP13

1

2

3

4

70

105

X

○

○

○

○

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

66.6

100/133/Au

○

X

○

X

○

to

(O: ON / X : OFF)

100MHz

133MHz

100/133/Auto

JP13

JP13

JP13

1

1

1

ON	1 2 3 4	ON	1 2 3 4	ON	1 2 3 4
	SW1		SW1		SW1

8

6CX Motherboard

Connectors

GAME & Audio Port

GAME

Port

Line Out

MIC

Line

COM A / COMB / LPT Port

LPT PORT

COM A

COM B

9

Connectors

CN3 (Back) : USB Connector

																														5 6 7 8						Pin No.	Definition
																																				1	USB V0
																																				2	USB D0-
																																				3	USB D0+
																																				4	GND
																																				5	USB V1
																																				6	USB D1-
																														1 2 3 4						7	USB D1+
																																				8	GND

PS/2 Keyboard & PS/2 Mouse Connector

PS/2 Mouse

6

5

4 3

2 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

6CX Motherboard

CPU / Power / System Cooling FAN Power Connector

1

Pin No.

Definition

1

GND

2

+12V

3

SENSE

ATX Power

																																					Pin No.	Definition
																																					3,5,7,13,
																																		11	1			GND
																																					15-17
																																					1,2,11	3.3V
																																					4,6,19,20	VCC
																																					10	+12V
																																					12	-12V
																																					18	-5V
																																		20	10		8	Power Good
																																					9	5V SB stand by+5V
																																					14	PS-ON(Soft On/Off)

11

Connectors

J8 : IR/CIR (Optional)

			Pin No.	Definition
	1	6	1	VCC
			2	NC
	5	10	3	IRRX
			4	GND
			5	IRTX
			6	NC
			7	CIRRX
			8	VCC
			9	NC
			10	NC

FLOPPY Port

RED LINE

12

6CX Motherboard

IDE1(Primary) , IDE2 (Secondary) Port

RED LINE

IDE 2 IDE 1

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

1

PIN No.

Definition

1

VCC

2

SPDIF OUT

3

GND

13

Connectors

AUX_IN

1

																														Pin No.	Definition
																														1	AUX-L
																														2	GND
																														3	GND
																														4	AUX-R

CD IN

1

																																		Pin No.	Definition
																																		1	CD-L
																																		2	GND
																																		3	GND
																																		4	CD-R

14

6CX Motherboard

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

1

																														Pin No.	Definition
																														1	Signal-In
																														2	GND
																														3	GND
																														4	Signal-Out

Wake On LAN

1

Pin No.

Definition

1

+5V SB

2

GND

3

Signal

15

Connectors

Ring Power On

1

Pin No.

Definition

1

Signal

2

GND

CN9 (Front):USB Port (Optional)

																															8													5
																															1												4
																																Pin No.							Definition
																																1										VCC
																																2							USB D0-
																																3							USB D0+
																																4										GND
																																5										VCC
																																6							USB D1-
																																7							USB D1+
																																8										GND

16

6CX Motherboard

JP31: External SMBUS Device Connector

1

																																		Pin No.	Definition
																																		1	SMB CLK
																																		2	NC
																																		3	GND
																																		4	SMB DATA
																																		5	+5V

JP2: STR LED Connector

STR LED Connector

External.

JP2

1

+

RAM Indicator

LED1

17

Panel and Definition

Panel and Jumper Definition

J9: Panel Jumper

GD PW P+ P− P− HD GN

1

1

KP

S 1

1

RE 1

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	Pin 1: LED anode(+)
LED)	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 Connec tor)	Open: Normal Operation
	Close: Power On/Off

18