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GMB-P56SPC (VER. 1.11)

GEMLIGHT COMPUTER, LTD.

GMB-P56SPC (VER. 1.11)

Processor

CX M1/AM K5/Pentium

Processor Speed

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

Chip Set

SIS

Video Chip Set

None

Maximum Onboard Memory

512MB (EDO supported)

Maximum Video Memory

None

Cache

256KB

BIOS

AMI/Award

Dimensions

270mm x 220mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J1

IDE interface 1

J17

Green PC LED

J2

IDE interface 2

J18

Green PC connector

J3

Serial port 1

J19

Speaker

J4

Serial port 2

J20

IDE interface LED

J5

Audio expansion interface

J21

Power LED & keylock

J6

Game interface

J23

IR connector

J12

PS/2 mouse interface

J28

CD-ROM connector (Panasonic/Mitsumi)

J13

VGA feature connector

J29

CD-ROM connector (Sony)

J14

IR connector

J33

Floppy drive interface

J15

32-bit PCI slots

PC1 - PC4

Parallel port

J16

   

Note: J21 may be a 2 x 8 connector on some board revisions.

USER CONFIGURABLE SETTINGS

Function

Label

Position

Ľ

CMOS memory normal operation

JP0

Pins 1 & 2 closed

 

CMOS memory clear

JP0

Pins 2 & 3 closed

 

Flash BIOS voltage select 12v

JP5

Pins 1 & 2 closed

 

Flash BIOS voltage select 5v

JP5

Pins 2 & 3 closed

 

Linear burst mode enabled (CX M1 only)

JP7

Closed

 

Linear burst mode disabled (all other CPU types)

JP7

Open

 

On board sound chip enabled

JP13

Closed

 

On board sound chip disabled

JP13

Open

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) 4M x 36

(2) 1M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 2M x 36

(2) 4M 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

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

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

256MB

(2) 32M x 36

None

264MB

(2) 32M x 36

(2) 1M x 36

272MB

(2) 32M x 36

(2) 2M x 36

288MB

(2) 32M x 36

(2) 4M x 36

320MB

(2) 32M x 36

(2) 8M x 36

384MB

(2) 32M x 36

(2) 16M x 36

512MB

(2) 32M x 36

(2) 32M x 36

Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Banks are interchangeable.

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(2) 32K x 32

(1) 8K16K/32K x 8

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP2

JP3

S4

S5

S6

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 (AMD)

CPU speed

Clock speed

Multiplier

JP2

JP3

S4

S5

S6

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

2x

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

JP2

JP3

S4

S5

S6

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 VOLTAGE SELECTION

Voltage

V core

JP1

S1

S2

S3

3.4v (single)

N/A

Closed

Closed

Closed

Closed

3.4v (dual)

2.9v

Closed

Open

Open

Open

3.5v (single)

N/A

Open

Closed

Closed

Closed