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G486-EVB (REV. A)

DIAMOND FLOWER, INC.

G486-EVB (REV. A)

Processor

CX486S/80486SX/SL80486SX/CX486S2/CX486DX/AM486DXL/80486DX/SL80486DX/CX486DX2/AM486DXT(NV8T)/80486DX2/SL80486DX2/SL80486DX4

Processor Speed

25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

64MB

Maximum Video Memory

None

Cache

128/256/512KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Green PC LED

D6

Green PC connector

JP44

External battery

JP14

Reset switch

JP45

Power LED & keylock

JP40

32-bit VESA local bus slots

SL1 – SL3

Speaker

JP41

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Battery type select external

JP3

Pins 1 & 2 closed

 

Battery type select internal

JP3

Pins 2 & 3 closed

»

BIOS type select 27512

JP10

Open

 

BIOS type select 28F010

JP10

Closed

»

Factory configured - do not alter

JP15

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

None

None

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

None

None

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

None

None

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M 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

512KB

(4) 128K x 8

None

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP19

JP20

JP21

JP26

JP27

JP28

128KB

Open

2 & 3

2 & 3

Closed

Closed

Open

256KB

Open

1 & 2

1 & 2

Closed

Closed

Closed

512KB

Closed

2 & 3

1 & 2

Closed

Closed

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION

Speed

JP36

JP37

S1

S2

S3

25MHz

1 & 2

1 & 2

Closed

Open

Open

33MHz

1 & 2

1 & 2

Closed

Closed

Closed

40MHz

1 & 2

1 & 2

Closed

Closed

Open

50iMHz

1 & 2

1 & 2

Closed

Open

Open

66iMHz

1 & 2

1 & 2

Closed

Closed

Closed

75iMHz

1 & 2

1 & 2

Closed

Open

Open

80iMHz

1 & 2

1 & 2

Closed

Closed

Open

100iMHz

1 & 2

1 & 2

Closed

Closed

Closed

120iMHz

1 & 2

1 & 2

Closed

Closed

Open

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP17

JP18

JP22

JP23

JP24

CX486S

Closed

Open

2 & 3

2 & 3

2 & 3

80486SX

Open

Open

N/A

N/A

N/A

SL80486SX

Open

Open

1 & 2

1 & 2

1 & 2

CX486S2

Closed

Open

2 & 3

2 & 3

2 & 3

CX486DX

Closed

Closed

2 & 3

2 & 3

2 & 3

AM486DXL

Open

Open

Open

Open

Open

80486DX

Open

Open

N/A

N/A

N/A

SL80486DX

Open

Open

1 & 2

1 & 2

1 & 2

CX486DX2

Closed

Closed

2 & 3

2 & 3

2 & 3

AM486DX2 (NV8T)

Open

Open

Open

Open

Open

80486DX2

Open

Open

N/A

N/A

N/A

SL80486DX2

Open

Open

1 & 2

1 & 2

1 & 2

SL80486DX4

Open

Open

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)

Type

JP25

JP29

JP30

JP31

JP49

CX486S

Open

2 & 3

Open

Open

Open

80486SX

N/A

2 & 3

Open

Open

N/A

SL80486SX

Open

2 & 3

Open

Open

Open

CX486S2

Open

2 & 3

Open

Open

Open

CX486DX

Open

1 & 2

2 & 3

Closed

Open

AM486DXL

Closed

1 & 2

2 & 3

Closed

Closed

80486DX

N/A

1 & 2

2 & 3

Closed

N/A

SL80486DX

Open

1 & 2

2 & 3

Closed

Open

CX486DX2

Open

1 & 2

2 & 3

Closed

Open

AM486DX2 (NV8T)

Open

1 & 2

2 & 3

Closed

Open

80486DX2

N/A

1 & 2

2 & 3

Closed

N/A

SL80486DX2

Open

1 & 2

2 & 3

Closed

Open

SL80486DX4

Open

1 & 2

2 & 3

Closed

Open

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP38

SL-enhanced

Open

Non SL-enhanced

Closed

CPU VOLTAGE SELECTION

Voltage

JP32

 

3.3v

Pins 5 & 6, 7 & 8 closed

»

5v

Pins 1 & 2, 3 & 4 closed

VL BUS WAIT STATE SELECTION

Setting

JP50

 

0

Open

»

1

Closed

VL BUS SPEED SELECTION

Speed

JP51

 

<= 33MHz

Open

»

>33 MHz

Closed