Gigabyte GA-6VM7A User Manual

FCC Compliance Statement:


DECLARATION OF CONFORMITY		This equipment has been tested and found to
Per FCC Part 2 Section 2. 1077(a)		comply with limits for a Class B digital device ,

Responsible Party Name: G.B.T. INC.		pursuant to Part 15 of the FCC rules. These
		limits are	designed	to	provide		reasonable
Address: 18305 Valley Blvd., Suite#A
	LA Puent, CA 91744	protection	against	harmful		interference			in
Phone/Fax No: (818) 854-9338/ (818) 854-9339
hereby declares that the product		residential	installations.		This		equipment
Product Name: Mother Board
		generates,	uses, and		can	radiate		radio
Model Number: GA-6VM7A+
Conforms to the following specifications:		frequency energy, and if not installed and used

FCC Part 15, Subpart B, Section 15.107(a) and Section 15.109(a),		in accordance with the instructions, may cause
Class B Digital Device
Supplementary Information:
		harmful interference		to radio		communications.
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		However, there is no guarantee that interference
that may cause undesired operation.
Representative Person's Name:	ERIC LU
		will not occur in a particular installation. If this
Signature:	Eric Lu
Date:	Feb. 11, 2000	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-6VM7A+

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, scientific 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	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 electrical appliances

(Stamp)

EN 50091-1	General and Safety requirements for
	uninterruptible power systems (UPS)
Manufacturer/Importer
	Signature	:	Rex Lin
Date : Feb. 11, 2000	Name	:	Rex Lin

6VM7A+

Socket 370 Processor Motherboard

USER'S MANUAL

Socket 370 Processor Motherboard

REV. 1.0 First Edition

R-10-01-000131

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)	BIOS Setup	Instructions on setting up the BIOS
		software

7) Appendix		General reference

Table Of Content

Revision History		P.1

Item Checklist		P.2

Summary of Features		P.3

6VM7A+ Motherboard Layout		P.5

Page Index for CPU Speed Setup / Connectors / Panel and Jumper		P.6
Definition

Performance List		P.25

Block Diagram		P.26

Memory Installation		P.27

Page Index for BIOS Setup		P.28
Page Index for BIOS Setup		P.28

Appendix		P.55

6VM7A+ Motherboard

Revision History

Revision	Revision Note	Date
1.0	Initial release of the 6VM7A+ motherboard user’s	Jan.2000
	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.

Jan. 31, 2000 Taipei, Taiwan, R.O.C

Item Checklist

The 6VM7A+ motherboardCable for IDE / floppy device

Diskettes or CD (TUCD) for motherboard driver & utilityInternal COM B Cable (Optional)

Internal USB Cable (Optional)Cable for SCSI device6VM7A+ user’s manual

6VM7A+ Motherboard

Summary Of Features

Form Factor

CPU

Chipset

Clock Generator

Memory

I/O Control

Slots

On-Board IDE

On-Board

Peripherals

Hardware Monitor

PS/2 Connector

24.3 cm x 21.0 cm micro ATX size form factor, 4 layers PCB.

Socket 370 processor

2nd cache in CPU(Depend on CPU)

VT82C693A

VT82C686A

ICS 9248DF-39

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

75/83/112/124/140/150 MHz system bus speeds (PCI 44MHz) (reserved)

2 168-pin DIMM sockets.

Supports PC-100 / PC-133 SDRAM and VCM SDRAM

Supports up to 1.0GB DRAM (Max)

Supports only 3.3V SDRAM DIMM

Supports 72bit ECC type DRAM integrity mode.

VT82C686A

1 AGP slot supports 2X mode

3 PCI slot supports 33MHz & PCI 2.2 compliant

1 AMR(Audio Modem Riser)slot

2 IDE bus master (DMA 33/ ATA 66) IDE ports for up to 4 ATAPI devices

Supports PIO mode 3, 4 (UDMA33/ATA66) IDE & ATAPI CD-ROM

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

1.44M and 2.88M bytes

1 parallel ports supports SPP/EPP/ECP mode

2 serial ports (COM A & COM B)

2 USB ports

CPU/System fan revolution detect

CPU /System temperature detect

System voltage detect (Vcore,Vcc3,Vcc,+12V)

CPU overheat shutdown detect

PS/2 Keyboard interface and PS/2 Mouse interface

To be continued…

		Summary of Features

BIOS		Licensed Award BIOS, 2M bit flash ROM
On-Board Sound		Creative CT5880
		Line In / Line Out / Mic In / AUX In / CD In / TEL /
		SPDIF / Game port
Additional Features		Includes 3 fan power connectors.
Additional Features		Includes 3 fan power connectors.
		Poly fuse for keyboard over-current protection

6VM7A+ Motherboard

6VM7A+ Motherboard Layout

PS/2
USB		JP19			POWER
USB	JP16				POWER
	JP16
			PGA 370		ATX
			CPU		ATX
			CPU
COMA							JP15
COMA
LPT
COMB			VT82C		IDE1	IDE2	FLOPPY
COMB	SW2		693A		IDE1	IDE2	FLOPPY
	SW2		693A
AUDIO	J5	J8		DIMM1	SW1
GAME&	J5	J7	6VMA7+	DIMM1	DIMM2
			6VMA7+
						BAT1	JP1
			AGP 1				JP23
							JP23
		PCI1				JP2
					JP3		BIOS
							BIOS

PCI2

CT5880	VT82C
	686A
PCI3	BZ1
J4
AMR	J2
AMR

6VM7A+ Motherboard Layout


Page Index for CPU Speed Setup / Connectors / Panel and Jumper		Page
Definition
	CPU Speed Setup		P.7
	Connectors		P.14
	Game & Audio Port		P.14
COM A / COM B / LPT Port		P.14
USB Connector			P.15
PS/2 Keyboard & PS/2 Mouse Connector		P.15
JP16 (CPU Cooling Fan Power Connector)			P.16
JP15 (Power Cooling Fan Power Connector)			P.16
JP2 (System Cooling Fan Power Connector)			P.17
ATX Power			P.17
Floppy Port		P.18
IDE 1(Primary)/ IDE 2(Secondary) Port		P.18
J7 (TEL)		P.19
J5 (AUX_IN)			P.19
J8 (CD Audio Line In)			P.20
J4 (SPDIF)			P.20
	Panel and Jumper Definition		P.21
	J2 (2x11 Pins Jumper)		P.21
JP1 (Clear CMOS Function)		P.22
JP3 (Onboard Sound Function Selection)		P.22
JP23 (Case Open)		P.23
JP19 (Support Cyrix CPU Selection)[Optional]		P.23
BAT1(Battery)		P.24

6VM7A+ Motherboard

CPU Speed Setup

The system bus speed is selectable at 66,100,133MHz and Auto. The user can select the system bus speed (SW1) and change the DIP switch (SW2) selection to set up the CPU speed for 300 - 733MHz processor.

Set System Bus Speed

SW1:

O : ON, X : OFF

CPU (MHz)

PCI(MHz)

Auto

33.3

37.5

41.6

100

33.3

112

37.3

124

133

33.3

140

150

37.5

The CPU speed must match with the frequency ratio. It will cause system hanging up if the frequency ratio is higher than that of CPU.

SW2:

				DIP SWITCH
FREQ. RATIO				DIP SWITCH
FREQ. RATIO	1		2		3	4
	1		2		3	4
X 3	O		X		O	O
X 3.5	X		X		O	O
X 4	O		O		X	O
X 4.5	X		O		X	O
X 5	O		X		X	O
X 5.5	X		X		X	O
X 6	O		O		O	X
X 6.5	X		O		O	X
X 7	O		X		O	X
X 7.5	X		X		O	X
X 8	O		O		X	X
X 8.5	X		O		X	X
X 9	O		X		X	X
X 9.5	X		X		X	X

		7

CPU Speed Setup

For Auto Jumper Setting:

1 2 3 4 5 6

SW1

Note:

1.If you use 66/100/1333 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 75 , 83 , 112 , 124 , 140 ,150 MHz because these frequencies are not the standard specifications for CPU, Chipset

and most of the peripherals. Whether your system can run under 75 ,83 ,112 ,124 ,140 ,150 MHz properly will depend on your hardware configurations: CPU, SDRAM, Cards, etc.

1. CeleronTM 300A/ 66 MHz FSB

ON 12