GIGA-BYTE TECHNOLOGY CO., LTD.

GA-5AX (REV. 4.0)

Device Type

Mainboard

Processor

CX 6X86MX/IBM 6X86MX/IBM MII/CX MII/AM K6/

AM K6-2/Pentium/Pentium MMX/IDT C6

Processor Speed

133/166/200/233/266/300/333/350/400MHz

Chip Set

Unidentified

Maximum Onboard Memory

768MB

Cache

512KB

BIOS

Award

Dimensions

305mm x 244mm

I/O Options (backplane)

32-bit PCI slots (5), floppy drive interface, 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

CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

Green LED

J9/pins 1 & 12

ATX power connector

ATX

Reset switch

J9/pins 3 & 4

PS/2 mouse interface

J1

Speaker

J9/pins 5 - 8

USB connector 1

J2

IDE interface LED

J9/pins 9 & 20

USB connector 2

J2A

Green PC switch

J9/pins 11 & 22

Serial port 2

J3

Soft off power switch

J9/pins 15 & 16

Parallel port

J4

Power LED

J9/pins 17 - 19

Serial port 1

J5

CPU fan power

JP1

IDE interface 2

J6

Wake on LAN connector

JP5

IDE interface 1

J7

32-bit PCI slots

PC1 - PC5

Floppy drive interface

J8

 

 


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Keyboard power on disabled

JP3

Pins 2 & 3 closed

 

Keyboard power on enabled

JP3

Pins 1 & 2 closed


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

16MB

(1) 2M x 64

None

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

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

32MB

(1) 4M x 64

None

None

40MB

(1) 2M x 64

(1) 2M x 64

(1) 1M x 64

40MB

(1) 4M x 64

(1) 1M x 64

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M 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

56MB

(1) 4M x 64

(1) 2M x 64

(1) 1M x 64

64MB

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64


DIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

64MB

(1) 4M x 64

(1) 4M x 64

None

64MB

(1) 8M x 64

None

None

72MB

(1) 4M x 64

(1) 4M x 64

(1) 1M x 64

72MB

(1) 8M x 64

(1) 1M x 64

None

80MB

(1) 4M x 64

(1) 4M x 64

(1) 2M x 64

80MB

(1) 8M x 64

(1) 1M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

None

88MB

(1) 8M x 64

(1) 2M x 64

(1) 1M x 64

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

96MB

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

None

104MB

(1) 8M x 64

(1) 4M x 64

(1) 1M x 64

112MB

(1) 8M x 64

(1) 4M x 64

(1) 2M x 64

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

128MB

(1) 16M x 64

None

None

136MB

(1) 8M x 64

(1) 8M x 64

(1) 1M x 64

136MB

(1) 16M x 64

(1) 1M x 64

None

144MB

(1) 8M x 64

(1) 8M x 64

(1) 2M 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

152MB

(1) 16M x 64

(1) 2M x 64

(1) 1M x 64

160MB

(1) 8M x 64

(1) 8M x 64

(1) 4M x 64

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

160MB

(1) 16M x 64

(1) 4M x 64

None

168MB

(1) 16M x 64

(1) 4M x 64

(1) 1M x 64

176MB

(1) 16M x 64

(1) 4M x 64

(1) 2M x 64

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M 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

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) 16M x 64

(1) 8M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

None

256MB

(1) 32M x 64

None

None

264MB

(1) 16M x 64

(1) 16M x 64

(1) 1M x 64

264MB

(1) 32M x 64

(1) 1M x 64

None

272MB

(1) 16M x 64

(1) 16M x 64

(1) 2M x 64

272MB

(1) 32M x 64

(1) 1M x 64

(1) 1M x 64

272MB

(1) 32M x 64

(1) 2M x 64

None

280MB

(1) 32M x 64

(1) 2M x 64

(1) 1M x 64

288MB

(1) 16M x 64

(1) 16M x 64

(1) 4M x 64

288MB

(1) 32M x 64

(1) 2M x 64

(1) 2M x 64

288MB

(1) 32M x 64

(1) 4M x 64

None

320MB

(1) 16M x 64

(1) 16M x 64

(1) 8M x 64

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64


DIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

296MB

(1) 32M x 64

(1) 4M x 64

(1) 1M x 64

304MB

(1) 32M x 64

(1) 4M x 64

(1) 2M x 64

320MB

(1) 32M x 64

(1) 4M x 64

(1) 4M x 64

320MB

(1) 32M x 64

(1) 8M x 64

None

328MB

(1) 32M x 64

(1) 8M x 64

(1) 1M x 64

336MB

(1) 32M x 64

(1) 8M x 64

(1) 2M x 64

352MB

(1) 32M x 64

(1) 8M x 64

(1) 4M x 64

384MB

(1) 32M x 64

(1) 8M x 64

(1) 8M x 64

384MB

(1) 32M x 64

(1) 16M x 64

None

392MB

(1) 32M x 64

(1) 16M x 64

(1) 1M x 64

400MB

(1) 32M x 64

(1) 16M x 64

(1) 2M x 64

416MB

(1) 32M x 64

(1) 16M x 64

(1) 4M x 64

448MB

(1) 32M x 64

(1) 16M x 64

(1) 8M 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

520MB

(1) 32M x 64

(1) 32M x 64

(1) 1M x 64

528MB

(1) 32M x 64

(1) 32M x 64

(1) 2M x 64

544MB

(1) 32M x 64

(1) 32M x 64

(1) 4M x 64

576MB

(1) 32M x 64

(1) 32M x 64

(1) 8M x 64

640MB

(1) 32M x 64

(1) 32M x 64

(1) 16M x 64

768MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64


CACHE CONFIGURATION

Size

Bank 0

0KB

Uninstalled

512KB

(1) 64K x 64

Note: The location of Bank 0 is unidentified.


CPU SPEED SELECTION (PENTIUM)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

133MHz

66MHz

2x

On

Off

Off

166MHz

66MHz

2.5x

On

On

Off

200MHz

66MHz

3x

Off

On

Off


CPU SPEED SELECTION (PENTIUM CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

133MHz

66MHz

2x

2 & 3

2 & 3

2 & 3

1 & 2

166MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

200MHz

66MHz

3x

2 & 3

2 & 3

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU SPEED SELECTION (PENTIUM MMX)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

166MHz

66MHz

2.5x

On

On

Off

200MHz

66MHz

3x

Off

On

Off

233MHz

66MHz

3.5x

Off

Off

Off


CPU SPEED SELECTION (PENTIUM MMX CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

166MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

200MHz

66MHz

3x

2 & 3

2 & 3

2 & 3

1 & 2

233MHz

66MHz

3.5x

2 & 3

2 & 3

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

166MHz

66MHz

2.5x

On

On

Off

200MHz

66MHz

3x

Off

On

Off

233MHz

66MHz

3.5x

Off

Off

Off

266MHz

66MHz

4x

On

Off

On

300MHz

66MHz

4.5x

On

On

On

300MHz

100MHz

3x

Off

On

Off


CPU SPEED SELECTION (AM K6 CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

166MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

200MHz

66MHz

3x

2 & 3

2 & 3

2 & 3

1 & 2

233MHz

66MHz

3.5x

2 & 3

2 & 3

2 & 3

1 & 2

266MHz

66MHz

4x

2 & 3

2 & 3

2 & 3

1 & 2

300MHz

66MHz

4.5x

2 & 3

2 & 3

2 & 3

1 & 2

300MHz

100MHz

3x

1 & 2

1 & 2

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU SPEED SELECTION (AM K6 -2)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

266MHz

66MHz

4x

On

Off

On

300MHz

100MHz

4.5x

Off

On

Off

333MHz

95MHz

3.5x

Off

Off

Off

350MHz

100MHz

3.5x

Off

Off

Off

380MHz

95MHz

4x

On

Off

On

400MHz

100MHz

4x

On

Off

On


CPU SPEED SELECTION (AM K6 - 2 CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

266MHz

66MHz

4x

2 & 3

2 & 3

2 & 3

1 & 2

300MHz

100MHz

4.5x

1 & 2

1 & 2

2 & 3

1 & 2

333MHz

95MHz

3.5x

1 & 2

1 & 2

2 & 3

2 & 3

350MHz

100MHz

3.5x

1 & 2

1 & 2

2 & 3

1 & 2

380MHz

95MHz

4x

1 & 2

1 & 2

2 & 3

2 & 3

400MHz

100MHz

4x

1 & 2

1 & 2

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU SPEED SELECTION (CX 686MX/IBM 686MX)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

166MHz

66MHz

2x

On

Off

Off

200MHz

66MHz

2.5x

On

On

Off

200MHz

75MHz

2x

On

Off

Off

233MHz

66MHz

3x

Off

On

Off

233MHz

75MHz

2.5x

On

On

Off

233MHz

83MHz

2x

On

Off

Off

266MHz

66MHz

3.5x

Off

Off

Off

266MHz

75MHz

3x

Off

On

Off

266MHz

83MHz

2.5x

On

On

Off


CPU SPEED SELECTION (CX 686MX/IBM 686MX CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

166MHz

66MHz

2x

2 & 3

2 & 3

2 & 3

1 & 2

200MHz

66MHz

2.5x

2 & 3

2 & 3

2 & 3

1 & 2

200MHz

75MHz

2x

1 & 2

2 & 3

2 & 3

2 & 3

233MHz

66MHz

3x

2 & 3

2 & 3

2 & 3

1 & 2

233MHz

75MHz

2.5x

1 & 2

2 & 3

2 & 3

2 & 3

233MHz

83MHz

2x

1 & 2

2 & 3

2 & 3

1 & 2

266MHz

66MHz

3.5x

2 & 3

2 & 3

2 & 3

1 & 2

266MHz

75MHz

3x

1 & 2

2 & 3

2 & 3

2 & 3

266MHz

83MHz

2.5x

1 & 2

2 & 3

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU SPEED SELECTION (CX MII)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

300MHz

66MHz

3.5x

Off

Off

Off

333MHz

75MHz

3.5x

Off

Off

Off

333MHz

83MHz

3x

Off

On

Off


CPU SPEED SELECTION (CX MII CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

300MHz

66MHz

3.5x

2 & 3

2 & 3

2 & 3

1 & 2

333MHz

75MHz

3.5x

1 & 2

2 & 3

2 & 3

2 & 3

333MHz

83MHz

3x

1 & 2

2 & 3

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU SPEED SELECTION (IBM MII)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

300MHz

66MHz

3.5x

Off

Off

Off

333MHz

75MHz

3.5x

Off

Off

Off

333MHz

83MHz

3x

Off

On

Off


CPU SPEED SELECTION (IBM MII CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

300MHz

66MHz

3.5x

2 & 3

2 & 3

2 & 3

1 & 2

333MHz

75MHz

3.5x

1 & 2

2 & 3

2 & 3

2 & 3

333MHz

83MHz

3x

1 & 2

2 & 3

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU SPEED SELECTION (IDT C6)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

200MHz

66MHz

3x

Off

On

Off

225MHz

75MHz

3x

Off

On

Off

266MHz

66MHz

4x

On

Off

On


CPU SPEED SELECTION (IDT C6 CON'T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP9

JP10

200MHz

66MHz

3x

2 & 3

2 & 3

2 & 3

1 & 2

225MHz

75MHz

3x

1 & 2

2 & 3

2 & 3

1 & 2

266MHz

66MHz

4x

2 & 3

2 & 3

2 & 3

1 & 2

Note: Pins designated are in the closed position.


CPU VOLTAGE SELECTION (SINGLE)

Voltage

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

3.4v

Off

On

On

On

Off

3.5v

On

On

On

On

Off


CPU VOLTAGE SELECTION (DUAL)

Voltage

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

1.3v

Off

Off

Off

Off

On

1.4v

Off

On

Off

Off

On

1.5v

Off

Off

On

Off

On

1.6v

Off

On

On

Off

On

1.7v

Off

Off

Off

On

On

1.8v

Off

On

Off

On

On

1.9v

Off

Off

On

On

On

2.0v

Off

On

On

On

On

2.1v

On

Off

Off

Off

Off

2.2v

Off

On

Off

Off

Off

2.3v

On

On

Off

Off

Off

2.4v

Off

Off

On

Off

Off

2.5v

On

Off

On

Off

Off

2.6v

Off

On

On

Off

Off

2.7v

On

On

On

Off

Off

2.8v

Off

Off

Off

On

Off

2.9v

On

Off

Off

On

Off

3.0v

Off

On

Off

On

Off

3.1v

On

On

Off

On

Off

3.2v

Off

Off

On

On

Off

3.3v

On

Off

On

On

Off