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Processor

CX486M6/80486SX/CX486M7/AM486DXL/UMC486/SL80486DX/80486DX/ 80486DX2/80486DX4/P24D/Pentium Overdrive

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

36MB

Cache

64/128/256KB

BIOS

AMI/Award

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

Turbo LED

D1

Speaker

JP28

External battery

JP1

Power LED & keylock

JP29

Green PC LED

JP24

Chassis fan power

JP33

Green PC connector

JP25

ECO-PAD/green VGA & IDE card connector

JP35

Reset switch

JP26

32-bit VESA local bus slots

SL1 - SL3

Turbo switch

JP27

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

�

BIOS voltage select 5v

JP2

pins 1 & 2 closed

BIOS voltage select 12v

JP2

pins 2 & 3 closed

�

Keyboard type select external

JP3

Open

Keyboard type select internal

JP3

Closed

�

CPU fan control select controlled by green mode

JP34

pins 1 & 2 closed

CPU fan control select always on

JP34

pins 2 & 3 closed

�

Power good signal detect from board

JP36

pins 1 & 2 closed

Power good signal detect from power supply

JP36

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(4) 256K x 9

NONE

NONE

1MB

NONE

(1) 256K x 36

NONE

1MB

NONE

NONE

(1) 256K x 36

2MB

NONE

(1) 512K x 36

NONE

2MB

NONE

NONE

(1) 512K x 36

2MB

(4) 256K x 9

(1) 256K x 36

NONE

2MB

NONE

(1) 256K x 36

(1) 256K x 36

3MB

(4) 256K x 9

(1) 512K x 36

NONE

3MB

NONE

(1) 256K x 36

(1) 512K x 36

3MB

NONE

(1) 512K x 36

(1) 256K x 36

4MB

(4) 1M x 9

NONE

NONE

4MB

NONE

(1) 1M x 36

NONE

4MB

NONE

NONE

(1) 1M x 36

4MB

NONE

(1) 512K x 36

(1) 512K x 36

4MB

(4) 256K x 9

(1) 512K x 36

(1) 256K x 36

5MB

(4) 256K x 9

(1) 1M x 36

NONE

5MB

(4) 1M x 9

(1) 256K x 36

NONE

5MB

NONE

(1) 256K x 36

(1) 1M x 36

5MB

NONE

(1) 1M x 36

(1) 256K x 36

6MB

(4) 1M x 9

(1) 512K x 36

NONE

6MB

NONE

(1) 512K x 36

(1) 1M x 36

6MB

NONE

(1) 1M x 36

(1) 512K x 36

8MB

NONE

(1) 2M x 36

NONE

8MB

NONE

NONE

(1) 2M x 36

8MB

(4) 1M x 9

(1) 1M x 36

NONE

8MB

NONE

(1) 1M x 36

(1) 1M x 36

8MB

(4) 1M x 9

(1) 512K x 36

(1) 512K x 36

9MB

(4) 256K x 9

(1) 2M x 36

NONE

9MB

NONE

(1) 256K x 36

(1) 2M x 36

10MB

NONE

(1) 512K x 36

(1) 2M x 36

11MB

(4) 256K x 9

(1) 512K x 36

(1) 2M x 36

12MB

(4) 1M x 9

(1) 2M x 36

NONE

12MB

NONE

(1) 1M x 36

(1) 2M x 36

DRAM CONFIGURATION (CON�T)

Size

Bank 0

Bank 1

Bank 2

16MB

(4) 4M x 9

NONE

NONE

16MB

NONE

(1) 4M x 36

NONE

16MB

NONE

NONE

(1) 4M x 36

17MB

(4) 256K x 9

(1) 4M x 36

NONE

17MB

(4) 4M x 9

(1) 256K x 36

NONE

17MB

NONE

(1) 256K x 36

(1) 4M x 36

17MB

NONE

(1) 4M x 36

(1) 256K x 36

18MB

(4) 4M x 9

(1) 512K x 36

NONE

18MB

NONE

(1) 512K x 36

(1) 4M x 36

18MB

NONE

(1) 4M x 36

(1) 512K x 36

19MB

(4) 256K x 9

(1) 512K x 36

(1) 4M x 36

20MB

(4) 1M x 9

(1) 4M x 36

NONE

20MB

(4) 4M x 9

(1) 1M x 36

NONE

20MB

NONE

(1) 1M x 36

(1) 4M x 36

20MB

NONE

(1) 4M x 36

(1) 1M x 36

22MB

(4) 4M x 9

(1) 512K x 36

(1) 1M x 36

24MB

(4) 4M x 9

(1) 2M x 36

NONE

24MB

NONE

(1) 4M x 36

(1) 2M x 36

32MB

NONE

(1) 8M x 36

NONE

32MB

NONE

NONE

(1) 8M x 36

32MB

(4) 4M x 9

(1) 4M x 36

NONE

36MB

(4) 1M x 9

(1) 4M x 36

(1) 4M x 36

36MB

(4) 4M x 9

(1) 1M x 36

(1) 4M x 36

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) 64K x 8

NONE

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP7

JP8

JP9

JP10

64KB

Open

Open

Open

2 & 3

128KB

Open

Closed

1 & 2

1 & 2

256KB

Closed

Closed

1 & 2, 3 & 4

1 & 2

256KB

Closed

Closed

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP11

JP12

JP13

CX486M6

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

2 & 3

80486SX

Open

2 & 3

2 & 3

cx486m7

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4

AM486DXL

2 & 3

2 & 3

1 & 2, 3 & 4

UMC486

2 & 3

2 & 3

2 & 3

80486DX

Open

2 & 3

1 & 2, 3 & 4

SL80486DX

1 & 2

1 & 2

1 & 2, 3 & 4

80486DX2

Open

2 & 3

1 & 2, 3 & 4

80486DX4

1 & 2

1 & 2

1 & 2, 3 & 4

P24D

1 & 2, 4 & 5

1 & 2, 4 & 5

1 & 2, 3 & 4

Pentium Overdrive

1 & 2

1 & 2

1 & 2, 3 & 4

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON�T)

Type

JP17

JP18

JP19

CX486M6

Open

2 & 3, 4 & 5

2 & 3, 4 & 5

80486SX

Open

Open

Open

cx486m7

1 & 2

2 & 3, 4 & 5

2 & 3

AM486DXL

1 & 2, 3 & 4

1 & 2

Open

UMC486

3 & 4

1 & 2

Open

80486DX

1 & 2

Open

Open

SL80486DX

1 & 2

5 & 6

1 & 2, 3 & 4

80486DX2

1 & 2

Open

Open

80486DX4

1 & 2

5 & 6

1 & 2, 3 & 4

P24D

1 & 2

3 & 4, 5 & 6

1 & 2, 3 & 4

Pentium Overdrive

2 & 3

5 & 6

1 & 2, 3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP4

JP5

JP6

25MHz

Open

Open

Closed

33MHz

Closed

Closed

Closed

40MHz

Open

Closed

Closed

50iMHz

Open

Open

Closed

50MHz

Closed

Open

Open

66iMHz

Closed

Closed

Closed

75iMHz

Open

Open

Closed

100iMHz

Closed

Closed

Closed

CPU SPEED CONFIGURATION (80486DX4 ONLY)

Speed

JP20

2x

Closed

3x

Open

VESA WAIT STATE CONFIGURATION

Wait states

JP22

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP21

<= 33MHz

Open

> 33MHz

Closed

DAUGHTER BOARD CONFIGURATION