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UM4980

RELIALOGIC CORPORATION PRIVATE, LTD.

UM4980

Processor

CX486S/SL80486SX/80486SX/SL80486SX2/80486SX2/CX486DX/AM486DX/ U5S/SL80486DX/80486DX/AM486DX2/CX486DX2/SL80486DX2/80486DX2/ AM486DX4/80486DX4

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

128/256/512/1024KB

BIOS

Phoenix

Dimensions

254mm x 218mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Power LED & keylock

J90 pins 11 - 15

Turbo LED

J90 pins 2 - 3

Speaker

J90 pins 17 - 20

Green PC connector

J90 pins 4 - 5

Daughter board connector

JP90

Turbo switch

J90 pins 6 - 7

32-bit VESA local bus slots

SL1 - SL3

Reset switch

J90 pins 9 - 10

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

Flash BIOS voltage select 5v

JP1

pins 1 & 2 closed

 

Flash BIOS voltage select 12v

JP1

pins 2 & 3 closed

Ľ

Keyboard type select external

JP3

Open

 

Keyboard type select internal

JP3

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

2MB

NONE

NONE

NONE

(1) 512K x 36

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

NONE

NONE

(1) 512K x 36

(1) 512K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

NONE

NONE

NONE

(1) 2M x 36

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

NONE

NONE

(1) 2M x 36

(1) 2M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

25MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

37MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

49MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

Note: If 8042 keyboard controller is not installed, maximum memory is 32MB.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 32K x 8

256KB

(4) 64K x 8

NONE

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 64K x 8

(4) 64K x 8

(1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

1MB

(4) 128K x 8

(4) 128K x 8

(1) 64K x 8

CACHE JUMPER CONFIGURATION

Size

JP4

JP5

JP6

JP10

JP11

JP12

JP13

128KB

1 & 2

1 & 2

Open

Open

Open

Open

Open

256KB

1 & 2

1 & 2

1 & 2

Open

Open

Open

Closed

256KB

2 & 3

2 & 3

Open

Open

Open

Open

Closed

512KB

2 & 3

2 & 3

2 & 3

Open

Closed

Open

Closed

512KB

1 & 2

2 & 3

2 & 3

1 & 2

Closed

Open

Closed

1MB

2 & 3

2 & 3

2 & 3

2 & 3

Closed

Closed

Closed

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP14

JP15

JP16

CX486S

2 & 3, 4 & 5

2 & 3

Open

SL80486SX

1 & 2, 3 & 4

2 & 3

Open

80486SX

Open

2 & 3

Open

SL80486SX2

1 & 2, 3 & 4

2 & 3

Open

80486SX2

Open

2 & 3

Open

CX486DX

2 & 3

1 & 2, 3 & 4

1 & 2

AM486DX

Open

1 & 2, 3 & 4

1 & 2

U5S

Open

2 & 3

3 & 4

SL80486DX

1 & 2, 3 & 4

1 & 2, 3 & 4

1 & 2

80486DX

Open

1 & 2, 3 & 4

1 & 2

AM486DX2

Open

1 & 2, 3 & 4

1 & 2

CX486DX2

2 & 3

1 & 2, 3 & 4

1 & 2

SL80486DX2

1 & 2, 3 & 4

1 & 2, 3 & 4

1 & 2

80486DX2

Open

1 & 2, 3 & 4

1 & 2

80486DX2 (WB)

1 & 2, 3 & 4

1 & 2, 3 & 4

1 & 2

AM486DX4

Open

1 & 2, 3 & 4

1 & 2

80486DX4

1 & 2, 3 & 4

1 & 2, 3 & 4

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JP17

JP18

JP19

CX486S

2 & 3, 4 & 5

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

SL80486SX

5 & 6

1 & 2

1 & 2

80486SX

Open

2 & 3

Open

SL80486SX2

5 & 6

1 & 2

1 & 2

80486SX2

Open

2 & 3

Open

CX486DX

2 & 3, 4 & 5

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4

AM486DX

Open

2 & 3

Open

U5S

1 & 2

2 & 3

2 & 3

SL80486DX

5 & 6

1 & 2

1 & 2

80486DX

Open

2 & 3

Open

AM486DX2

Open

2 & 3

Open

CX486DX2

2 & 3, 4 & 5

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4

SL80486DX2

5 & 6

1 & 2

1 & 2

80486DX2

Open

2 & 3

Open

80486DX2 (WB)

3 & 4, 5 & 6

1 & 2, 4 & 5

1 & 2, 4 & 5

AM486DX4

Open

2 & 3

Open

80486DX4

5 & 6

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP7

JP8

JP9

25MHz

Closed

Open

Open

33MHz

Closed

Closed

Closed

40MHz

Closed

Closed

Open

50iMHz

Closed

Open

Open

50MHz

Open

Open

Closed

66iMHz

Closed

Closed

Closed

75iMHz

Closed

Open

Open

100iMHz

Closed

Closed

Closed

CPU SPEED CONFIGURATION (80486DX4 ONLY)

Speed

JP24

2x

pins 2 & 3 closed

3x

Open

CPU SPEED CONFIGURATION (AM486DX4 ONLY)

Speed

JP400

2x

Closed

3x

Open

VESA WAIT STATE CONFIGURATION

Wait states

JP26

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP25

<= 33MHz

Open

> 33MHz

Closed