...because we can't all be on the bleeding edge...





SUPERBOARD 486/VLB (VERSION 2)

ORCHID TECHNOLOGY

SUPERBOARD 486/VLB (VERSION 2)

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

20/25/33/50(internal)/50/66(internal)MHz

Chip Set

OPTI

Max. onboard DRAM

32MB

Cache

128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA card slots (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

JP8

32-bit VESA cards

S1 & S2

Speaker

JP7

Reset switch

JP9

Turbo LED

JP3

Turbo switch

JP10

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP26

Closed

 

Monitor type select monochrome

JP26

Open

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

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP14

JP16

JP22

128KB

pins 2 & 3 closed

Open

pins 2 & 3 closed

256KB

pins 1 & 2 closed

Closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

CPU Type

Oscillator

JP12

JP13

JP18

JP19

80486SX - 20MHz

20MHz

pins 2 & 3

Open

Open

pins 2 & 3

80486SX - 20MHz

40MHz

pins 2 & 3

Open

Open

pins 1 & 2

80486SX - 25MHz

25MHz

pins 2 & 2

Open

Open

pins 2 & 3

80486SX - 25MHz

50MHz

pins 2 & 3

Open

Open

pins 1 & 2

80486DX - 25MHz

25MHz

pins 1 & 2

Closed

pins 2 & 3

pins 2 & 3

80486DX - 33MHz

66MHz

pins 1 & 2

Closed

pins 2 & 3

pins 1 & 2

80486DX - 50MHz

50MHz

pins 1 & 2

Closed

pins 2 & 3

pins 2 & 3

ODP486SX - 25MHz

25MHz

pins 2 & 3

Open

Open

pins 2 & 3

ODP486SX - 25MHz

50MHz

pins 2 & 3

Open

pins 2 & 3

Open

80486DX2 - 50MHz

25MHz

pins 1 & 2

Closed

pins 2 & 3

pins 2 & 3

80486DX2 - 50MHz

50MHz

pins 1 & 2

Closed

pins 2 & 3

pins 1 & 2

80486DX2 - 66MHz

66MHz

pins 1 & 2

Closed

pins 2 & 3

pins 1 & 2

VESA CPU TYPE (ID0 & ID1) CONFIGURATION

CPU Type

JP1 (ID0)

JP2 (ID1)

80386

pins 2 & 3 closed

pins 1 & 2 closed

80486

pins 1 & 2 closed

pins 2 & 3 closed

VESA WAIT STATE (ID2) CONFIGURATION

Wait states

CPU speed

JP4 (ID2)

0 wait states

£ 33MHz

pins 1 & 2 closed

1 wait state

> 33MHz

pins 2 & 3 closed

VESA BUS SPEED (ID3) CONFIGURATION

CPU speed

JP5 (ID3)

£ 33MHz

pins 1 & 2 closed

> 33MHz

pins 2 & 3 closed

VESA ID4 CONFIGURATION

Setting

JP6 (ID4)

Reserved for future use

pins 2 & 3 closed