GIGA-BYTE TECHNOLOGY CO., LTD.

GA-6BXA (VER. 1.0)

Device Type

Mainboard

Processor

Pentium II/Celeron

Processor Speed

266/300/333/350/366/400/433/450/466/500/550/600/650MHz

Chip Set

Intel 440BX

Maximum Onboard Memory

768MB (EDO & SDRAM supported)

Cache

0/128/256/512KB (located on the CPU)

BIOS

Award

Dimensions

305mm x 190mm

I/O Options

32-bit PCI slots (5), floppy drive interface, game/MIDI port, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector, AGP slot, line in, line out, microphone in, audio in - CD-ROMs (2), SB-link connector, wake on LAN connector

CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

CPU fan power

J2

ATX power connector

ATX

Chassis fan power

J9

Power fan power

C1

Green PC LED

JP5/pins 1 & 12

Game/MIDI port

CN1

Reset switch

JP5/pins 3 & 4

Microphone in

CN2

Speaker

JP5/pins 5 - 8

Line in

CN3

IDE interface LED

JP5/pins 9 & 20

Line out

CN4

Green PC connector

JP5/pins 11 & 22

Serial port 1

CN5

Soft off power supply

JP5/pins 15 & 16

Audio in - CD-ROM

CN6

Power LED

JP5/pins 17 - 19

Parallel port

CN7

Audio in - CD-ROM

JP7

USB connector 1

CN8

STR LED

JP9

USB connector 2

CN9

Wake on LAN connector

JP10

PS/2 mouse port

CN10

Case open connector

JP11

IDE interface 2

CN11

Wake on modem connector

JP12

IDE interface 1

CN12

Modem connector

JP20

Floppy drive interface

CN13

SB-link connector

JP21

Serial port 2

CN14

32-bit PCI slots

PC1 - PC5

IR connector

IR1

 

 

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

ATX power supply select soft off

J12

Open

 

ATX power supply select full on

J12

Closed

Keyboard power on disabled

JP1

Pins 2 & 3 closed

 

Keyboard power on enabled

JP1

Pins 1 & 2 closed

System acceleration select 100MHz

JP4

Pins 2 & 3 closed

 

System acceleration select turbo

JP4

Pins 1 & 2 closed

CMOS memory normal operation

JP13

Pins 2 & 3 closed

 

CMOS memory clear

JP13

Pins 1 & 2 closed

 

Suspend to RAM function enabled

JP14

Open

 

Suspend to RAM function disabled

JP14

Closed

 

PCI bus CLK select 33MHz

JP16

Open

 

PCI bus CLK select 44MHz

JP16

Closed

DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 2M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

24MB

(1) 2M x 64

(1) 1M x 64

None

32MB

(1) 2M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

DIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

40MB

(1) 4M x 64

(1) 1M x 64

None

40MB

(1) 2M x 64

(1) 2M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 1M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

56MB

(1) 4M x 64

(1) 2M x 64

(1) 1M x 64

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64

64MB

(1) 4M x 64

(1) 4M x 64

None

72MB

(1) 8M x 64

(1) 1M x 64

None

96MB

(1) 8M x 64

(1) 4M x 64

None

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

136MB

(1) 16M x 64

(1) 1M x 64

None

136MB

(1) 8M x 64

(1) 8M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

None

144MB

(1) 8M x 64

(1) 8M x 64

(1) 2M x 64

152MB

(1) 16M x 64

(1) 2M x 64

(1) 1M x 64

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

None

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

200MB

(1) 16M x 64

(1) 8M x 64

(1) 1M x 64

208MB

(1) 16M x 64

(1) 8M x 64

(1) 2M x 64

224MB

(1) 16M x 64

(1) 8M x 64

(1) 4M x 64

256MB

(1) 32M x 64

None

None

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

264MB

(1) 32M x 64

(1) 1M x 64

None

272MB

(1) 32M x 64

(1) 1M x 64

(1) 1M x 64

288MB

(1) 32M x 64

(1) 4M x 64

None

320MB

(1) 32M x 64

(1) 4M x 64

(1) 4M x 64

320MB

(1) 32M x 64

(1) 8M x 64

None

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 32M x 64

None

768MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64

Note: Board accepts EDO & SDRAM memory.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium II CPU. 128KB cache is located on the Celeron 300A & 333 CPU.

CPU SPEED SELECTION (CELERON)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

266MHz

66MHz

4x

On

Off

Off

On

300MHz

66MHz

4.5x

On

Off

Off

On

333MHz

66MHz

5x

On

Off

Off

On

366MHz

66MHz

5.5x

On

Off

Off

On

400MHz

66MHz

6x

On

Off

Off

On

433MHz

66MHz

6.5x

On

Off

Off

On

CPU SPEED SELECTION (CELERON, CON'T)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

266MHz

66MHz

4x

On

On

Off

On

300MHz

66MHz

4.5x

Off

On

Off

On

333MHz

66MHz

5x

On

Off

Off

On

366MHz

66MHz

5.5x

Off

Off

Off

On

400MHz

66MHz

6x

On

On

On

Off

433MHz

66MHz

6.5x

Off

On

On

Off

CPU SPEED SELECTION (PENTIUM II)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

266MHz

66MHz

4x

On

Off

Off

On

300MHz

66MHz

4.5x

On

Off

Off

On

333MHz

66MHz

5x

On

Off

Off

On

366MHz

66MHz

5.5x

On

Off

Off

On

400MHz

66MHz

6x

On

Off

Off

On

433MHz

66MHz

6.5x

On

Off

Off

On

350MHz

100MHz

3.5x

Off

Off

Off

Off

400MHz

100MHz

4x

Off

Off

Off

Off

450MHz

100MHz

4.5x

Off

Off

Off

Off

500MHz

100MHz

5x

Off

Off

Off

Off

550MHz

100MHz

5.5x

Off

Off

Off

Off

600MHz

100MHz

6x

Off

Off

Off

Off

650MHz

100MHz

6.5x

Off

Off

Off

Off

CPU SPEED SELECTION (PENTIUM II, CON'T)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

266MHz

66MHz

4x

On

On

Off

On

300MHz

66MHz

4.5x

Off

On

Off

On

333MHz

66MHz

5x

On

Off

Off

On

366MHz

66MHz

5.5x

Off

Off

Off

On

400MHz

66MHz

6x

On

On

On

Off

433MHz

66MHz

6.5x

Off

On

On

Off

350MHz

100MHz

3.5x

Off

Off

On

On

400MHz

100MHz

4x

On

On

Off

On

450MHz

100MHz

4.5x

Off

On

Off

On

500MHz

100MHz

5x

On

Off

Off

On

550MHz

100MHz

5.5x

Off

Off

Off

On

600MHz

100MHz

6x

On

On

On

Off

650MHz

100MHz

6.5x

Off

On

On

Off

ON BOARD SOUND SELECTION

Setting

JP17

JP18

JP19

Enabled

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

Open