...because we can't all be on the bleeding edge...





GMB-486APS (VER. 1.00)

VEXTREC TECHNOLOGY, INC.

GMB-486APS (VER. 1.00)

Device Type

Mainboard

Processor

80486SX/DX/DX2/DX4/P24/AM486DX2/DX4/ AM 5X86/AM K5/AM K6/CX486DX/DX2/DX4/CX 5X86/CX 6X86/CX 6X86L/TI 486DX2/SGS ST486SX

Processor Speed

25/33/40/50/60/66/75/90/100/120/133

Chip Set

ALI

Maximum Onboard Memory

128MB (EDO & SDRAM supported)

Cache

128/256/512KB

BIOS

Award

Dimensions

220mm x 220mm

I/O Options

32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2), IR connector, Green PC connector

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface 1

CN1

Reset switch

J2

IDE interface 2

CN2

Turbo switch

J3

Parallel port

CN3

Turbo LED

J4

Floppy drive interface

CN4

Power LED & keylock

J5

IR connector

CN5

Speaker

J6

Serial port 1

CN6

IDE interface LED

J7

Serial port 2

CN7

Green PC connector

JP21

External battery

J1

32-bit PCI slots

PC1 - PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

Ľ

CMOS memory normal operation

J1

Pins 1 & 2 closed

 

CMOS memory clear

J1

Pins 2 & 3 closed

 

Flash BIOS voltage select 5V

JP9

Pins 1 & 2 closed

 

Flash BIOS voltage select 12V

JP9

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 256K x 36

None

4MB

(2) 256K x 36

(2) 256K x 36

4MB

(2) 512K x 36

None

8MB

(2) 512K x 36

(2) 512K x 36

8MB

(2) 1MB x 36

None

16MB

(2) 1MB x 36

(2) 1MB x 36

16MB

(2) 2MB x 36

None

24MB

(2) 2MB x 36

(2) 1MB x 36

32MB

(2) 2MB x 36

(2) 2MB x 36

32MB

(2) 4MB x 36

None

40MB

(2) 4MB x 36

(2) 1MB x 36

48MB

(2) 4MB x 36

(2) 2MB x 36

64MB

(2) 4MB x 36

(2) 4MB x 36

64MB

(2) 8MB x 36

None

72MB

(2) 8MB x 36

(2) 1MB x 36

80MB

(2) 8MB x 36

(2) 2MB x 36

96MB

(2) 8MB x 36

(2) 4MB x 36

128MB

(2) 8MB x 36

(2) 8MB x 36

CACHE MEMORY CONFIGURATION

Size

Bank 0

TAG

128KB

32K x 8

8K x 8

256KB

64K x 8

16K x 8

512KB

128K x 8

32K x 8

CACHE JUMPER CONFIGURATION

Size

JP15

JP30

128KB

Open

Pins 2 & 3 closed

256KB

Pins 2 & 3 closed

Pins 1 & 2 closed

512KB

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

CPU SPEED SELECTION

Speed

JP2

JP5

JP6

JP7

JP8

25MHz

1 & 2

Open

Open

1 & 2

Open

33MHz

1 & 2

Closed

Closed

1 & 2

Open

40MHz

2 & 3

Closed

Open

2 & 3

Closed

Note: Pins designated are in the closed position.

CPU TYPE SELECTION (INTEL)

CPU type

JP19

JP20

JP22

JP23

JP24

80486DX2/DX4 (P24C)

2 & 3

Open

Open

1 & 2

1 & 2

80486DX2 (P24D) (L1WB)

2 & 3

Open

5 & 6

2 & 3

1 & 2

80486DX/DX2

2 & 3

Open

Open

1 & 2

Open

80487SX

1 & 2

Open

Open

1 & 2

Open

80486SX/SX2

Open

Open

Open

1 & 2

1 & 2

80486SX

Open

Open

Open

1 & 2

Open

P24T

1 & 2

Open

Open

2 & 3

1 & 2

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (INTEL) (CONíT)

Type

JP25

JP26

JP27

JP28

JP29

80486DX2/DX4 (P24C)

Closed

3 & 4

1 & 2

2 & 3

Open

80486DX2 (P24D) (L1WB)

Closed

3 & 4

1 & 2

2 & 3

3 & 4

80486DX/DX2

Open

1 & 2

Open

2 & 3

Open

80487SX

Open

1 & 2

Open

2 & 3

Open

80486SX/SX2

Closed

3 & 4

1 & 2

1 & 2

Open

80486SX

Open

1 & 2

Open

1 & 2

Open

P24T

Closed

3 & 4

1 & 2

2 & 3

Open

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (CYRIX)

Type

JP19

JP20

JP22

JP23

JP24

486DX4-GP4

2 & 3

Open

Open

1 & 2

1 & 2

DX/DX2/DX2-V/DX4-GP

2 & 3

Open

1 & 2

1 & 2

3 & 4

CX 5X86

2 & 3

Open

5 & 6

1 & 2

1 & 2

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (CYRIX) (CONíT)

Type

JP25

JP26

JP27

JP28

JP29

486DX4-GP4

Closed

3 & 4

1 & 2

2 & 3

Open

DX/DX2/DX2-V/DX4-GP

Closed

5 & 6

3 & 4

2 & 3

1 & 2

CX 5X86

Closed

3 & 4

1 & 2

2 & 3

3 & 4

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (AMD)

Type

JP19

JP20

JP22

JP23

JP24

Am486DX2/DX4

2 & 3

Open

Open

1 & 2

1 & 2

Am486DX2/DX4 (SV8B)

2 & 3

Open

5 & 6

2 & 3

1 & 2

AMD-5X86 (AMD-5X)

2 & 3

Open

5 & 6

2 & 3

1 & 2

Am486DX/DX2

2 & 3

Open

Open

1 & 2

Open

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (AMD) (CONíT)

Type

JP25

JP26

JP27

JP28

JP29

Am486DX2/DX4

Closed

3 & 4

1 & 2

2 & 3

Open

Am486DX2/DX4 (SV8B)

Closed

3 & 4

1 & 2

2 & 3

3 & 4

AMD-5X86 (AMD-5X)

Closed

3 & 4

1 & 2

2 & 3

3 & 4

Am486DX/DX2

Open

1 & 2

Open

2 & 3

Open

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (SGS/THOMSON)

Type

JP19

JP20

JP22

JP23

JP24

ST486DX4V10HS

2 & 3

Open

Open

1 & 2

1 & 2

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (SGS/THOMSON) (CONíT)

Type

JP25

JP26

JP27

JP28

JP29

ST486DX4V10HS

Closed

3 & 4

1 & 2

2 & 3

Open

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (TEXAS INSTUMENTS)

Type

JP19

JP20

JP22

JP23

JP24

486DX2

2 & 3

Open

1 & 2

1 & 2

3 & 4

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (TEXAS INSTUMENTS) (CONíT)

Type

JP25

JP26

JP27

JP28

JP29

486DX2

Closed

5 & 6

3 & 4

2 & 3

1 & 2

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (IBM)

Type

JP19

JP20

JP22

JP23

JP24

486-4V3100GC

2 & 3

Open

1 & 2

1 & 2

3 & 4

486-4V3100GIC

2 & 3

Open

5 & 6

1 & 2

1 & 2

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (IBM) (CONíT)

Type

JP25

JP26

JP27

JP28

JP29

486-4V3100GC

Closed

5 & 6

3 & 4

2 & 3

1 & 2

486-4V3100GIC

Closed

3 & 4

1 & 2

2 & 3

3 & 4

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (UMC)

Type

JP19

JP20

JP22

JP23

JP24

U5S-Super

2 & 3

Open

Open

1 & 2

Open

Note: Designated pins are in the closed position.

CPU TYPE SELECTION (UMC) (CONíT)

Type

JP25

JP26

JP27

JP28

JP29

U5S-Super

Open

1 & 2

Open

2 & 3

Open

Note: Designated pins are in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP13/pins 1 & 2

JP13/pins 3 & 4

JP13/pins 5 & 6

JP13/pins 7 & 8

3.3v

Open

Closed

Open

Open

3.45v

Open

Open

Closed

Open

3.6v

Open

Open

Open

Closed

4v

Open

Open

Open

Open

5v

Closed

Open

Open

Open