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SUPERBOARD 486(DX2)

ORCHID TECHNOLOGY

SUPERBOARD 486(DX2)

Processor

80486SX/80486DX/ODP486SX/80486DX2

Processor Speed

20/25/40/50(internal)/66(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

64/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit proprietary video card slot

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J10

32-bit proprietary video card

S1

Power LED & keylock

J23

Reset switch

SW1

Speaker

J24

Turbo switch

SW2

Turbo LED

JP12

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP1

Open

 

Monitor type select monochrome

JP1

Closed

CMOS memory normal operation

JP2

pins 2 & 3 closed

 

CMOS memory clear

JP2

pins 1 & 2 closed

Factory configured - do not alter

JPX

N/A

Factory configured - do not alter

JPY

N/A

Factory configured - do not alter

JP13

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

TAG (U34)

TAG (U33)

64KB

(8) 8K x 8

(1) 8K x 8

(1) 64K x 1

256KB

(8) 32K x 8

(1) 32K x 8

(1) 64K x 1

CACHE JUMPER CONFIGURATION

Size

JP8

JP9

JP10

JP11

64KB

Open

Open

Open

Open

256KB

Closed

Closed

Open

Closed

CPU TYPE CONFIGURATION

Type

OSC

JP4

JP5

JP6

JP7

80486SX-20

20MHz

1 & 2

Open

2 & 3

Open

80486SX-20

40MHz

2 & 3

Open

2 & 3

Open

ODP486SX-50

25MHz

1 & 2

Open

2 & 3

Open

ODP486SX-50

50MHz

2 & 3

Open

2 & 3

Open

80486DX-25

25MHz

1 & 2

2 & 3

1 & 2

Closed

80486DX2-50

50iMHz

2 & 3

2 & 3

1 & 2

Closed

80486DX-33

66MHz

2 & 3

2 & 3

1 & 2

Closed

80486DX2-50

50iMHz

2 & 3

2 & 3

1 & 2

Closed

80486DX2-66

66MHz

2 & 3

2 & 3

1 & 2

Closed

Note: Pins designated should be in the closed position.