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





UM4980

ELITEGROUP COMPUTER SYSTEMS, INC.

UM4980

Processor

CX486S/SL80486SX/80486SX/SL80486SX2/80486SX2/AM486DXL/AM486DX/CX486DX/UMCU5S/AM486DXL/SL80486DX/80486DX/AM486DX2/CX486DX2/ SL80486DX2/80486DX2/80486DX4

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), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Reset switch

J30

Green PC connector

J27

Turbo switch

J31

Turbo LED

J28

Power LED & keylock

J32

Speaker

J29

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

BIOS type select EPROM

JP1

Open

 

BIOS type select 5v flash

JP1

pins 1 & 2 closed

 

BIOS type select 12v flash

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

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

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

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 8K 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

pins 2 & 3, 4 & 5 closed

2 & 3

Open

SL80486SX

pins 1 & 2, 3 & 4 closed

2 & 3

Open

80486SX

Open

pins 2 & 3 closed

Open

SL80486SX2

pins 1 & 2, 3 & 4 closed

2 & 3

Open

80486SX2

Open

pins 2 & 3 closed

Open

AM486DXL

Open

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

AM486DX

Open

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

CX486DX

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

UMC U5S

Open

pins 2 & 3 closed

pins 3 & 4 closed

AM486DXL2

Open

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

SL80486DX

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

80486DX

Open

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

AM486DX2

Open

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

CX486DX2

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

SL80486DX2

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

80486DX2

Open

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

80486DX2 (WB)

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

80486DX4

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

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

AM486DXL

1 & 2

2 & 3

2 & 3

AM486DX

Open

2 & 3

Open

CX486DX

2 & 3, 4 & 5

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4

UMC U5S

1 & 2

2 & 3

2 & 3

AM486DXL2

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

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 VOLTAGE CONFIGURATION

Voltage

JP20

JP21

JP22

3.3v

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

3.45v

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

5v

pins 1 & 2 closed

pins 1 & 2 closed

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