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486UL

ADVANCED INTEGRATION RESEARCH, INC.

486UL

Processor

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

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI/Phoenix

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card slot, 32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo switch

J6

Power LED & keylock

J3

Turbo LED

J7

Speaker

J4

32-bit VESA local bus slots

S1-S3

Reset switch

J5

32-bit external memory card

JME1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Keyboard BIOS speed select 8MHz

JO8

pins 1 & 2 closed

 

Keyboard BIOS speed select from CPU speed

JO8

pins 2 & 3 closed

CMOS memory normal operation

JP4

pins 1 & 2 closed

 

CMOS memory clear

JP4

pins 2 & 3 closed

Battery type select internal

JP8

Closed

 

Battery type select external

JP8

Open

Monitor type select color

JP10

Closed

 

Monitor type select monochrome

JP10

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

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

64KB

(4) 8K x 8

(4) 8K x 8

128KB

(4) 32K x 8

NONE

256KB

(4) 32K x 8

(4) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP13

JP14

JP16

JP17

JP18

JP19

64KB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

128KB

2 & 3

1 & 2

2 & 3

1 & 2

2 & 3

1 & 2

256KB

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP1

JP2

JP3

80486SX

Open

pins 2 & 3 closed

Open

ODP486SX

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

Open

80487SX

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

Open

80486DX

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

Open

80486DX2

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

Open

CPU SPEED CONFIGURATION

Speed

JO3

JO4

JO5

JO6

JP23

20MHz

Closed

Closed

Closed

Open

Open

25MHz

Closed

Closed

Open

Closed

Open

33MHz

Closed

Open

Closed

Closed

Open

40MHz

Open

Open

Closed

Open

Closed

50iMHz

Closed

Closed

Open

Closed

Open

50MHz

Open

Open

Open

Open

Open

66iMHz

Closed

Open

Closed

Closed

Open