VEXTREC TECHNOLOGY, INC.

GMB-P56VPS (VER. 1.10)

Processor

CX 6X86/AM K5/Pentium/Pentium MMX

Processor Speed

75/90/100/120/133/150/166/180/200MHz

Chip Set

VIA

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

AMI/Award

Dimensions

270mm x 220mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connectors (2), USB connectors (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

IR connector

J14

Reset switch

J1

IR connector (fast)

J15

Turbo switch

J2

Parallel port

J16

Turbo LED

J3

Serial port 2

J17

IDE interface LED

J4

Serial port 1

J18

Speaker

J5

PS/2 mouse interface

J19

Power LED & keylock

J6

USB connector 2

J21

Floppy drive interface

J10

USB connector 1

J22

IDE interface 2

J11

32-bit PCI slots

PC1 - PC4

IDE interface 1

J12

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Flash BIOS voltage select 12v

JP2

Pins 2 & 3 closed

 

Flash BIOS voltage select 5v

JP2

Pins 1 & 2 closed

»

CMOS memory normal operation

JP6

Pins 1 & 2 closed

 

CMOS memory clear

JP6

Pins 2 & 3 closed

»

Boost mode disabled

S5

Open

 

Boost mode disabled

S5

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 16M x 36

None

128MB

(2) 8M x 36

(2) 8M x 36

136MB

(2) 16M x 36

(2) 1M x 36

144MB

(2) 16M x 36

(2) 2M x 36

160MB

(2) 16M x 36

(2) 4M x 36

192MB

(2) 16M x 36

(2) 8M x 36

256MB

(2) 16M x 36

(2) 16M x 36

Note: Board accepts EDO memory. Banks are interchangeable.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

256KB

(2) 32K x 32

None

(1) 8K/16K/32K x 8

512KB

(2) 32K x 32

(2) 32K x 32

(1) 16K/32K x 8

Note: The location of banks 0 & 1 are unidentified.

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP7

JP8

S3

S4

S5

120MHz

50MHz

2x

1 & 2

2 & 3

Closed

Closed

Open

133MHz

55MHz

2x

1 & 2

2 & 3

Open

Open

Open

150MHz

60MHz

2x

1 & 2

2 & 3

Closed

Open

Open

166MHz

66MHz

3x

1 & 2

2 & 3

Open

Closed

Open

200MHz

66MHz

3x

1 & 2

2 & 3

Open

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP7

JP8

S3

S4

S5

75MHz

50MHz

1.5x

1 & 2

1 & 2

Closed

Closed

Open

90MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

Open

100MHz

66MHz

1.5x

1 & 2

1 & 2

Open

Closed

Open

120MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

Open

133MHz

66MHz

2x

1 & 2

1 & 2

Open

Closed

Open

150MHz

66MHz

1.5x

1 & 2

2 & 3

Closed

Open

Open

166MHz

66MHz

2x

1 & 2

2 & 3

Open

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP7

JP8

S3

S4

S5

75MHz

50MHz

1.5x

1 & 2

1 & 2

Closed

Closed

Open

90MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

Open

100MHz

66MHz

1.5x

1 & 2

1 & 2

Open

Closed

Open

120MHz

60MHz

2x

1 & 2

2 & 3

Closed

Open

Open

133MHz

66MHz

2x

1 & 2

2 & 3

Open

Closed

Open

150MHz

60MHz

2.5x

2 & 3

2 & 3

Closed

Open

Open

166MHz

66MHz

2.5x

2 & 3

2 & 3

Open

Closed

Open

180MHz

60MHz

3x

2 & 3

1 & 2

Closed

Open

Open

200MHz

66MHz

3x

2 & 3

1 & 2

Open

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

JP7

JP8

S3

S4

S5

166MHz

66MHz

2.5x

2 & 3

2 & 3

Open

Closed

Open

200MHz

66MHz

3x

2 & 3

1 & 2

Open

Closed

Open

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)

Voltage

JP1

S0

S1

S2

3.4v

Closed

Closed

Closed

Closed

3.5v

Open

Closed

Closed

Closed

CPU VOLTAGE SELECTION (DUAL)

V I/O

V core

JP1

S0

S1

S2

3.4v

2.9v

Closed

Open

Open

Open