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GMB-486UNP

ROBOTECH, INC.

GMB-486UNP

Processor

CX486S/SL80486SX/80486SX/AM486DX-PLUS/AM486DXL/CX486DX/ SL80486DX/80486DX/AM486DX2-PLUS/AM486DXL2/CX486DX2/ SL80486DX2/80486DX2/80486DX4/P24D/ Pentium Overdrive

Processor Speed

20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz

Chip Set

Unidentified

Max. Onboard DRAM

128MB

Cache

128/256/512KB

BIOS

Award

Dimensions

260mm x 220mm

I/O Options

32-bit VESA local bus slots (3), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Reset switch

J6

Turbo switch

J3

Power LED & keylock

J7

Turbo LED

J4

Green PC connector

JP27

Speaker

J5

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

CMOS memory normal operation

JP16

pins 2 & 3 closed

 

CMOS memory clear

JP16

pins 1 & 2 closed

Ľ

Monitor type select monochrome/EGA/VGA

JP17

Open

 

Monitor type select EGA

JP17

Closed

Ľ

CPU clock delay select CLKIN delay for CPUCLK

JP20

pins 2 & 3 closed

 

CPU clock delay select CLKIN and CPUCLK same phase

JP20

pins 1 & 2 closed

Ľ

Green PC break switch enabled

JP26

Open

 

Green PC break switch disabled

JP26

Closed

Ľ

Factory configured - do not alter

JP32

pins 1 & 2 closed

Ľ

Factory configured - do not alter

JP35

pins 2 & 3 closed

Ľ

Keyboard controller clock select asynchronous

JPX1

Open

 

Keyboard controller clock select synchronous

JPX1

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 512K x 36

NONE

4MB

(1) 512K x 36

(1) 512K x 36

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 256K x 36

(1) 1M x 36

NONE

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

6MB

(1) 512K x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 256K x 36

(1) 256K x 36

(1) 512K x 36

(1) 1M x 36

8MB

(1) 512K x 36

(1) 512K x 36

(1) 1M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 512K x 36

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

12MB

(1) 1M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 4M x 36

NONE

NONE

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 2M x 36

NONE

17MB

(1) 256K x 36

(1) 4M x 36

NONE

NONE

18MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

NONE

18MB

(1) 512K x 36

(1) 4M x 36

NONE

NONE

20MB

(1) 512K x 36

(1) 512K x 36

(1) 4M x 36

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

20MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

NONE

24MB

(1) 512K x 36

(1) 512K x 36

(1) 1M x 36

(1) 4M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

24MB

(1) 2M x 36

(1) 4M x 36

NONE

NONE

28MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

36MB

(1) 512K x 36

(1) 512K x 36

(1) 4M x 36

(1) 4M x 36

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

36MB

(1) 1M x 36

(1) 8M x 36

NONE

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

40MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

NONE

40MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

48MB

(1) 4M x 36

(1) 8M x 36

NONE

NONE

48MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

48MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

NONE

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

NONE

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

65MB

(1) 256K x 36

(1) 16M x 36

NONE

NONE

68MB

(1) 1M x 36

(1) 16M x 36

NONE

NONE

68MB

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

NONE

72MB

(1) 1M x 36

(1) 1M x 36

(1) 16M x 36

NONE

72MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

80MB

(1) 4M x 36

(1) 16M x 36

NONE

NONE

80MB

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

NONE

80MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

96MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

NONE

96MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

NONE

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

256KB

(4) 64K x 8

NONE

(1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP1

JP2

JP3

JP4

JP33

128KB

1 & 2

1 & 2

1 & 2, 3 & 4

1 & 2

2 & 3

256KB

2 & 3

2 & 3

2 & 3, 4 & 5

1 & 2

2 & 3

256KB

1 & 2

2 & 3

1 & 2, 3 & 4

1 & 2

1 & 2

512KB

1 & 2

2 & 3

1 & 2, 3 & 4

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP8

JP10

JP11

JP12

JP13

CX486S

2 & 3

2 & 3

Open

2 & 3, 4 & 5

Open

SL80486SX

2 & 3

2 & 3

Open

3 & 4

1 & 2

80486SX

2 & 3

2 & 3

Open

Open

Open

AM486DX-PLUS

1 & 2, 3 & 4

2 & 3

3 & 4

3 & 4

4 & 5

AM486DXL

1 & 2, 3 & 4

2 & 3

1 & 2, 3 & 4

Open

Open

CX486DX

1 & 2, 3 & 4

2 & 3

3 & 4

2 & 3

Open

SL80486DX

1 & 2, 3 & 4

2 & 3

3 & 4

3 & 4

1 & 2

80486DX

1 & 2, 3 & 4

2 & 3

3 & 4

Open

Open

AM486DX2-PLUS

1 & 2, 3 & 4

2 & 3

3 & 4

3 & 4

4 & 5

AM486DXL2

1 & 2, 3 & 4

2 & 3

1 & 2, 3 & 4

Open

Open

CX486DX2

1 & 2, 3 & 4

2 & 3

3 & 4

2 & 3

Open

SL80486DX2

1 & 2, 3 & 4

2 & 3

3 & 4

3 & 4

1 & 2

80486DX2

1 & 2, 3 & 4

2 & 3

3 & 4

Open

Open

80486DX4

1 & 2, 3 & 4

2 & 3

3 & 4

3 & 4

1 & 2

P24D

1 & 2, 3 & 4

1 & 2

3 & 4

1 & 2, 3 & 4

2 & 3

Pentium Overdrive

1 & 2, 3 & 4

1 & 2

2 & 3

3 & 4

Open

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JP14

JP15

JP21

JP22

JP24

CX486S

1 & 2, 3 & 4

2 & 3

1 & 2

2 & 3

2 & 3

SL80486SX

2 & 3

4 & 5

2 & 3

1 & 2

Open

80486SX

Open

Open

2 & 3

1 & 2

Open

AM486DX-PLUS

2 & 3

4 & 5

1 & 2

1 & 2

Open

AM486DXL

Open

Open

1 & 2

2 & 3

3 & 4

CX486DX

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

SL80486DX

2 & 3

4 & 5

2 & 3

1 & 2

Open

80486DX

Open

Open

2 & 3

1 & 2

Open

AM486DX2-PLUS

2 & 3

4 & 5

1 & 2

1 & 2

Open

AM486DXL2

Open

Open

1 & 2

2 & 3

3 & 4

CX486DX2

1 & 2

2 & 3

1 & 2

2 & 3

2 & 3

SL80486DX2

2 & 3

4 & 5

2 & 3

1 & 2

Open

80486DX2

Open

Open

2 & 3

1 & 2

Open

80486DX4

2 & 3

4 & 5

2 & 3

1 & 2

Open

P24D

2 & 3

4 & 5

1 & 2

1 & 2

Open

Pentium Overdrive

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JP25

JP30

JP31

JP34

JP36

CX486S

2 & 3

Open

Open

1 & 2

Closed

SL80486SX

Open

Open

Open

1 & 2

Closed

80486SX

Open

Open

Open

Open

Closed

AM486DX-PLUS

1 & 2

Open

2 & 3

1 & 2

Closed

AM486DXL

Open

Open

Open

2 & 3

Closed

CX486DX

2 & 3

Open

Open

1 & 2

Closed

SL80486DX

Open

Open

Open

1 & 2

Closed

80486DX

Open

Open

Open

Open

Closed

AM486DX2-PLUS

1 & 2

Open

2 & 3

1 & 2

Closed

AM486DXL2

Open

Open

Open

2 & 3

Closed

CX486DX2

2 & 3

Open

Open

1 & 2

Closed

SL80486DX2

Open

Open

Open

1 & 2

Closed

80486DX2

Open

Open

Open

Open

Closed

80486DX4

3 & 4

Open

Open

1 & 2

Open

P24D

1 & 2

Closed

1 & 2

1 & 2

Closed

Pentium Overdrive

1 & 2

Open

Open

1 & 2

Closed

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION (AV9107)

Speed

JP5

JP6

JP7

20MHz

Closed

Open

Closed

25MHz

Closed

Closed

Open

33MHz

Open

Closed

Closed

40MHz

Closed

Open

Open

50iMHz

Closed

Closed

Open

50MHz

Open

Open

Closed

66iMHz

Open

Closed

Closed

75iMHz

Closed

Closed

Open

100iMHz

Open

Closed

Closed

CPU SPEED CONFIGURATION (MX-8315)

Speed

JP5

JP6

JP7

20MHz

Open

Open

Open

25MHz

Open

Closed

Open

33MHz

Closed

Closed

Closed

40MHz

Open

Closed

Closed

50iMHz

Open

Closed

Open

50MHz

Closed

Open

Open

66iMHz

Closed

Closed

Closed

75iMHz

Open

Closed

Open

100iMHz

Closed

Closed

Closed

VESA WAIT STATE CONFIGURATION

Wait states

JP28

0 wait states

pins 1 & 2 closed

1 wait state

pins 2 & 3 closed

BUS SPEED CONFIGURATION

CPU speed

JP29

<= 33MHz

pins 1 & 2 closed

> 33MHz

pins 2 & 3 closed