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GMB-P55IPS (VER. 1.50B)

GEMLIGHT COMPUTER, LTD.

GMB-P55IPS (VER. 1.50B)

Processor

CX 6X86/AM K5/Pentium

Processor Speed

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

Chip Set

Intel 440HX

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

265mm 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 connector, USB connectors (2)

CONNECTIONS

Purpose

Location

Purpose

Location

IR connector

J1

Parallel port

J11

Power LED & keylock

J2

Serial port 2

J12

Speaker

J4

Serial port 1

J13

IDE interface LED

J5

PS/2 mouse interface

J16

IDE interface 1

J6

PS/2 mouse port

J18

IDE interface 2

J7

Turbo LED

J19

Floppy drive interface

J8

Green PC connector

JP8

USB connector 1

J9

Reset switch

JP11

USB connector 2

J10

32-bit PCI slots

PC1 - PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

Ľ

Factory configured - do not alter

J3

Unidentified

Ľ

CMOS memory normal operation

JP13

Open

 

CMOS memory clear

JP13

Closed

 

Flash BIOS voltage select 12v

JP20

Pins 1 & 2 closed

 

Flash BIOS voltage select 5v

JP20

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(2) 512K x 36

None

4MB

(2) 256K x 36

(2) 256K x 36

6MB

(2) 512K x 36

(2) 256K x 36

8MB

(2) 1M x 36

None

8MB

(2) 512K x 36

(2) 512K x 36

10MB

(2) 1M x 36

(2) 256K x 36

12MB

(2) 1M x 36

(2) 512K x 36

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

18MB

(2) 2M x 36

(2) 256K x 36

20MB

(2) 2M x 36

(2) 512K 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

34MB

(2) 4M x 36

(2) 256K x 36

36MB

(2) 4M x 36

(2) 512K 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

66MB

(2) 8M x 36

(2) 256K x 36

68MB

(2) 512K x 36

(2) 8M x 36

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

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

130MB

(2) 16M x 36

(2) 256K x 36

132MB

(2) 16M x 36

(2) 512K 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 x 8

512KB

(2) 32K x 32

(2) 32K x 32

(1) 16K/32K x 8

512KB

(2) 64K x 32

None

(1) 16K/32K x 8

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

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP18

120MHz

50MHz

2x

Closed

Open

1 & 2, 3 & 4

133MHz

55MHz

2x

Closed

Open

Open

150MHz

60MHz

2x

Closed

Open

3 & 4

166MHz

66MHz

2x

Closed

Open

1 & 2

200MHz

66MHz

3x

Closed

Open

5 & 6

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP18

75MHz

50MHz

1.5x

Open

Open

1 & 2, 3 & 4

90MHz

60MHz

1.5x

Open

Open

3 & 4

100MHz

66MHz

1.5x

Open

Open

1 & 2

120MHz

60MHz

1.5x

Open

Open

3 & 4

133MHz

66MHz

1.5x

Open

Open

1 & 2

150MHz

66MHz

1.5x

Open

Open

1 & 2

166MHz

66MHz

2.5x

Closed

Closed

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP18

75MHz

50MHz

1.5x

Open

Open

1 & 2, 3 & 4

90MHz

60MHz

1.5x

Open

Open

3 & 4

100MHz

66MHz

1.5x

Open

Open

1 & 2

120MHz

60MHz

2x

Closed

Open

3 & 4

133MHz

66MHz

2x

Closed

Open

1 & 2

150MHz

60MHz

2.5x

Closed

Closed

3 & 4

166MHz

66MHz

2.5x

Closed

Closed

1 & 2

200MHz

66MHz

3x

Open

Closed

1 & 2

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)

Voltage

JP9

JP10

JP14

3.4v

Open

Closed

1 & 2, 3 & 4, 5 & 6, 7 & 8

3.5v

Closed

Open

1 & 2, 3 & 4, 5 & 6, 7 & 8

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (DUAL)

V I/O

V core

JP9

JP10

JP14

3.4v

2.8v

Open

Closed

Open