HwMuseum | Index

GEMLIGHT COMPUTER, LTD.

GMB-P56IPS (VER. 5.02)

Device Type

Mainboard

Processor

CX 6X86/CX 6X86L/AM K5/AM K6/Pentium/Pentium MMX

Processor Speed

75/90/100/110/120/133/150/166/200/233MHz

Chip Set

Intel 430TX

Maximum Onboard Memory

128MB (EDO & SDRAM supported)

Cache

256/512KB

BIOS

Award/AMI

Dimensions

220mm x 250mm

I/O Options

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

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J1

Floppy drive interface

J12

Green PC connector

J2

Parallel port

J13

Green PC LED

J3

Serial port 1

J14

Speaker

J4

Serial port 2

J15

IDE interface LED

J5

USB connector 1

J16

Power LED & keylock

J6

USB connector 2

J17

IR connector

J9

PS/2 mouse interface

J18

IDE interface 1

J10

PS/2 mouse port

J20

IDE interface 2

J11

32-bit PCI slots

PC1 - PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

JP2

Open

 

CMOS memory clear

JP2

Closed

 

Flash BIOS voltage select 5v

JP4

Pins 2 & 3 closed

 

Flash BIOS voltage select 12v

JP4

Pins 1 & 2 closed

SIMM MEMORY CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1MB x 32

None

16MB

(2) 1MB x 32

(2) 1MB x 32

16MB

(2) 2MB x 32

None

32MB

(2) 2MB x 32

(2) 2MB x 32

32MB

(2) 4MB x 32

None

48MB

(2) 4MB x 32

(2) 2MB x 32

64MB

(2) 4MB x 32

(2) 4MB x 32

64MB

(2) 8MB x 32

None

80MB

(2) 8MB x 32

(2) 2MB x 32

96MB

(2) 8MB x 32

(2) 4MB x 32

128MB

(2) 8MB x 32

(2) 8MB x 32

DIMM MEMORY CONFIGURATION

Size

Bank 2

Bank 3

8MB

(1) 1MB x 64

None

16MB

(1) 1MB x 64

(1) 1MB x 64

16MB

(1) 2MB x 64

None

32MB

(1) 2MB x 64

(1) 2MB x 64

32MB

(1) 4MB x 64

None

48MB

(1) 4MB x 64

(1) 2MB x 64

64MB

(1) 4MB x 64

(1) 4MB x 64

64MB

(1) 8MB x 64

None

80MB

(1) 8MB x 64

(1) 2MB x 64

96MB

(1) 8MB x 64

(1) 4MB x 64

128MB

(1) 8MB x 64

(1) 8MB x 64

DRAM VOLTAGE SELECTION

Voltage

S4

S5

5V SIMM

Pins 1 & 2 closed

Pins 1 & 2 closed

3.3V SIMM

Pins 2 & 3 closed

Pins 2 & 3 closed

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(2) 32K x 32

16/32K x 8

512KB

(2) 64K x 32

16/32K x 8

CPU SPEED SELECTION (INTEL)

Speed

Clock speed

Multiplier

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

75MHz

50MHz

1.5x

Off

Off

On

On

On

90MHz

60MHz

1.5x

Off

Off

Off

On

On

100MHz

66MHz

1.5x

Off

Off

On

Off

On

120MHz

60MHz

2x

On

Off

Off

On

On

133MHz

66MHz

2x

On

Off

On

Off

On

150MHz

60MHz

2.5x

On

On

Off

On

On

166MHz

66MHz

2.5x

On

On

On

Off

On

200MHz

66MHz

3x

Off

On

On

Off

On

CPU SPEED SELECTION (INTEL MMX)

Speed

Clock speed

Multiplier

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

166MHz

66MHz

2.5x

On

On

On

Off

On

200MHz

66MHz

3x

Off

On

On

Off

On

233MHz

66MHz

3.5x

Off

Off

On

Off

On

CPU SPEED SELECTION (CX 6X86)

Speed

Clock speed

Multiplier

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

120MHz

60MHz

2x

On

Off

On

On

Off

133MHz

66MHz

2x

On

Off

On

On

Off

150MHz

60MHz

2.5x

On

Off

Off

On

On

CPU SPEED SELECTION (CX 6X86L)

Speed

Clock speed

Multiplier

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

120MHz

60MHz

2x

On

Off

On

On

Off

133MHz

66MHz

2x

On

Off

On

On

Off

150MHz

60MHz

2.5x

On

Off

Off

On

On

166MHz

66MHz

2.5x

On

Off

On

Off

On

200MHz

75MHz

2x

On

Off

Off

On

Off

CPU SPEED SELECTION (AM K5)

Speed

Clock speed

Multiplier

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

75MHz

50MHz

1.5x

Off

Off

On

On

On

90MHz

60MHz

1.5x

Off

Off

Off

On

On

100MHz

66MHz

1.5x

Off

Off

On

Off

On

120MHz

60MHz

2x

Off

Off

Off

On

On

133MHz

66MHz

2x

On

Off

On

Off

On

150MHz

60MHz

2.5x

Off

Off

On

Off

On

166MHz

66MHz

2.5x

On

On

On

Off

On

CPU SPEED SELECTION (AM K6)

Speed

Clock speed

Multiplier

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

166MHz

66MHz

2.5x

On

On

On

Off

On

200MHz

66MHz

3x

Off

On

On

Off

On

233MHz

66MHz

3.5x

Off

Off

On

Off

On

CPU VOLTAGE SELECTION (SINGLE)

Voltage

S1

S2

S3

SW1/1

SW1/2

SW1/3

3.3V

Closed

Closed

Closed

Off

Off

On

3.5V

Closed

Closed

Closed

Off

Off

Off

CPU VOLTAGE SELECTION (DUAL)

V I/O

V core

S1

S2

S3

SW1/1

SW1/2

SW1/3

3.3V

2.8V

Open

Open

Open

On

Off

On

3.3V

2.9V

Open

Open

Open

Off

On

On

3.3V

3.2V

Open

Open

Open

Off

Off

On