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486UL (VER. 1)

UNIDENTIFIED

486UL (VER. 1)

Processor

80486SX/80487SX/ODP486/80486DX/80486DX2

Processor Speed

25/33/40/50(internal)/50/66(internal)MHz

Chip Set

UMC

Video Chip Set

None

Maximum Onboard Memory

64MB

Maximum Video Memory

None

Cache

64/128/256KB

BIOS

AMI/Award

Dimensions

250mm x 220mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Power LED & keylock

J5

Turbo LED

J2

Reset switch

J6

Turbo switch

J3

32-bit VESA local bus slots

SL1 - SL3

Speaker

J4

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Turbo switch enabled/controlled by KBD CTRL, ALT - (low), CTRL, ALT + (high)

J3

Open

 

Turbo switch disabled

J3

Closed

Any VESA card installed

JP9

1 & 2

 

Weitek Power 9000 VESA card installed

JP9

2 & 3

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

None

None

None

1MB

None

None

None

(1) 256K x 36

2MB

(4) 256K x 9

(4) 256K x 9

None

None

2MB

None

None

(1) 256K x 36

(1) 256K x 36

2MB

None

None

None

(1) 512K x 36

3MB

(4) 256K x 9

(4) 256K x 9

(1) 256K x 36

None

3MB

None

None

(1) 256K x 36

(1) 512K x 36

3MB

None

(4) 256K x 9

(1) 256K x 36

(1) 256K x 36

4MB

(4) 256K x 9

(4) 256K x 9

(1) 512K x 36

None

4MB

(4) 1M x 9

None

None

None

4MB

None

None

(1) 512K x 36

(1) 512K x 36

4MB

None

None

None

(1) 1M x 36

5MB

(4) 256K x 9

(4) 1M x 9

None

None

5MB

(4) 256K x 9

None

None

(1) 1M x 36

5MB

None

None

(1) 256K x 36

(1) 1M x 36

5MB

(4) 1M x 9

None

(1) 256K x 36

None

6MB

(4) 1M x 9

None

(1) 512K x 36

None

6MB

None

(4) 256K x 9

(1) 1M x 36

(1) 256K x 36

7MB

None

(4) 256K x 9

(1) 512K x 36

(1) 1M x 36

7MB

None

(4) 1M x 9

(1) 512K x 36

(1) 256K x 36

8MB

(4) 1M x 9

(4) 1M x 9

None

None

8MB

(4) 1M x 9

None

(1) 1M x 36

None

8MB

None

None

(1) 1M x 36

(1) 1M x 36

8MB

None

None

None

(1) 2M x 36

9MB

(4) 256K x 9

None

(1) 2M x 36

None

9MB

(4) 1M x 9

(4) 1M x 9

(1) 256K x 36

None

10MB

(4) 1M x 9

(4) 1M x 9

(1) 512K x 36

None

10MB

(4) 256K x 9

(4) 256K x 9

(1) 2M x 36

None

10MB

None

None

(1) 512K x 36

(1) 2M x 36

12MB

(4) 1M x 9

(4) 1M x 9

(1) 1M x 36

None

12MB

(4) 1M x 9

None

(1) 2M x 36

None

12MB

None

None

(1) 1M x 36

(1) 2M x 36

13MB

None

(4) 1M x 9

(1) 256K x 36

(1) 2M x 36

16MB

(4) 1M x 9

(4) 1M x 9

(1) 2M x 36

None

16MB

None

(4) 1M x 9

(1) 1M x 36

(1) 2M x 36

DRAM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

16MB

(4) 4M x 9

None

None

None

16MB

None

None

(1) 2M x 36

(1) 2M x 36

17MB

(4) 256K x 9

(4) 4M x 9

None

None

18MB

(4) 4M x 9

None

(1) 512K x 36

None

19MB

None

(4) 4M x 9

(1) 512K x 36

(1) 256K x 36

20MB

(4) 1M x 9

(4) 4M x 9

None

None

20MB

(4) 4M x 9

None

(1) 1M x 36

None

21MB

None

(4) 4M x 9

(1) 256K x 36

(1) 1M x 36

22MB

(4) 1M x 9

(4) 4M x 9

(1) 512K x 36

None

24MB

(4) 4M x 9

None

(1) 2M x 36

None

25MB

None

(4) 4M x 9

(1) 256K x 36

(1) 2M x 36

28MB

(4) 1M x 9

(4) 4M x 9

(1) 2M x 36

None

32MB

(4) 4M x 9

(4) 4M x 9

None

None

33MB

(4) 4M x 9

(4) 4M x 9

(1) 256K x 36

None

34MB

(4) 4M x 9

(4) 4M x 9

(1) 512K x 36

None

36MB

(4) 4M x 9

(4) 4M x 9

(1) 1M x 36

None

40MB

(4) 4M x 9

(4) 4M x 9

(1) 2M x 36

None

64MB

(4) 16M x 9

None

None

None

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

None

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE RESISTOR CONFIGURATION

Size

RN6

RN7

RN8

64KB

Installed

Not installed

Not installed

128KB

Not installed

Installed

Not installed

256KB

Not installed

Not installed

Installed

CPU SPEED SELECTION

Speed

J22

JP3

JP4

JP5

25MHz

Pins 1 & 2 closed

Closed

Open

Open

33MHz

Pins 1 & 2 closed

Closed

Closed

Closed

40MHz

Pins 1 & 2 closed

Closed

Closed

Open

50iMHz

Pins 1 & 2 closed

Closed

Open

Open

50MHz

Pins 2 & 3 closed

Open

Open

Closed

66iMHz

Pins 1 & 2 closed

Closed

Closed

Closed

CPU TYPE SELECTION

Type

JP1

JP2

80486SX

Pins 2 & 3 closed

Open

80487SX

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

ODP486

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

80486DX

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

80486DX2

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

VL BUS WAIT STATE SELECTION

Setting

JP13

 

0

Open

1

Closed

VL-BUS SPEED SELECTION

CPU speed

JP12

<= 33MHz

Open

>33 MHz

Closed