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SY-4SAW/2/W5

SOYO COMPUTER CO., LTD.

SY-4SAW/2/W5

Processor

UMCU5S/80486SX/SL80486SX/80486SX2/SL80486SX2/CX486DX/ TI486DX/SGS486DX/80486DX/SL80486DX/CX486DX2/TI486DX2/ SGS486DX2/UMC486DX2/AM486DX2/80486DX2/SL80486DX2/ 80486DX4/TI486DX4/SGS486DX4/AM486DX4/80486DX4/P24D/P24T/ CX M1SC/AM X5

Processor Speed

25/33/40/50(internal)/50/63(internal)/66(internal)/75(internal)/ 80(internal)/83(internal)100(internal)/120(internal)/133(internal)/ 150(internal)/160(internal)MHz

Chip Set

SIS

Maximum Onboard Memory

256MB

Cache

256/512KB

BIOS

Award

Dimensions

250mm x 220mm

I/O Options

32-bit VESA local bus slot, 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)

NPU Options

None

CONNECTIONS

Function

Label

Function

Label

Serial port 2

CN1

Speaker

J18

Serial port 1

CN2

Reset switch

J19

Floppy drive interface

CN3

External battery

J20

Parallel port

CN4

Turbo switch

J21

IDE interface 1

CN5

Turbo LED

J22

IDE interface 2

CN6

IDE interface LED 2

JP17

PS/2 mouse interface

J1

IDE interface LED 1

JP18

Green PC connector

J7

32-bit PCI slots

PC1 - PC4

Power LED & keylock

J17

32-bit VESA local bus slot

SL1

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Factory configured - do not alter

JP1

Pins 1 & 2 closed

 

BIOS type select EPROM/flash

JP2

Pins 2 & 3 closed

 

BIOS type select flash

JP2

Pins 1 & 2 closed

Monitor type select color

JP3

Closed

 

Monitor type select monochrome

JP3

Open

PS/2 mouse disabled

JP4

Open

 

PS/2 mouse enabled

JP4

Closed

CMOS memory normal operation

JP5

Pins 1 & 2 closed

 

CMOS memory clear

JP5

Pins 2 & 3 closed

Factory configured - do not alter

JP12

Pins 1 & 2 closed

Factory configured - do not alter

JP19

Pins 2 & 3 closed

Factory configured - do not alter

JP27

Pins 2 & 3 closed

Factory configured - do not alter

JP28

Pins 2 & 3 closed

Factory configured - do not alter

JP48

N/A

Factory configured - do not alter

JP51

N/A

DRAM

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 512K x 36

None

None

None

2MB

(1) 256K x 36

(1) 256K x 36

None

None

3MB

(1) 512K x 36

(1) 256K x 36

None

None

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

None

3MB

(1) 256K x 36

(1) 512K x 36

None

None

4MB

(1) 1M x 36

None

None

None

4MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

None

4MB

(1) 512K x 36

(1) 512K x 36

None

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

DRAM (CONT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

5MB

(1) 1M x 36

(1) 256K x 36

None

None

5MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

5MB

(1) 256K x 36

(1) 512K x 36

(1) 512K x 36

None

5MB

(1) 256K x 36

(1) 1M x 36

None

None

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

None

6MB

(1) 1M x 36

(1) 512K x 36

None

None

6MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

None

6MB

(1) 512K x 36

(1) 1M x 36

None

None

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 2M x 36

None

None

None

8MB

(1) 1M x 36

(1) 512K x 36

(1) 512K x 36

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

9MB

(1) 2M x 36

(1) 256K x 36

None

None

9MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

None

9MB

(1) 256K x 36

(1) 2M x 36

None

None

10MB

(1) 2M x 36

(1) 256K x 36

(1) 256K x 36

None

10MB

(1) 2M x 36

(1) 512K x 36

None

None

10MB

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

None

10MB

(1) 512K x 36

(1) 2M x 36

None

None

11MB

(1) 2M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 2M x 36

(1) 512K x 36

(1) 512K x 36

None

12MB

(1) 2M x 36

(1) 1M x 36

None

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

12MB

(1) 1M x 36

(1) 2M x 36

None

None

13MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

14MB

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

None

None

None

16MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 2M x 36

(1) 2M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

17MB

(1) 4M x 36

(1) 256K x 36

None

None

17MB

(1) 256K x 36

(1) 2M x 36

(1) 2M x 36

None

17MB

(1) 256K x 36

(1) 4M x 36

None

None

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

None

18MB

(1) 4M x 36

(1) 512K x 36

None

None

18MB

(1) 512K x 36

(1) 2M x 36

(1) 2M x 36

None

18MB

(1) 512K x 36

(1) 4M x 36

None

None

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 512K x 36

(1) 512K x 36

None

20MB

(1) 4M x 36

(1) 1M x 36

None

None

20MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

None

20MB

(1) 1M x 36

(1) 4M x 36

None

None

DRAM (CONT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

None

24MB

(1) 4M x 36

(1) 2M x 36

None

None

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

None

24MB

(1) 2M x 36

(1) 4M x 36

None

None

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 8M x 36

None

None

None

32MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

33MB

(1) 8M x 36

(1) 256K x 36

None

None

33MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

None

33MB

(1) 256K x 36

(1) 8M x 36

None

None

34MB

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

None

34MB

(1) 8M x 36

(1) 512K x 36

None

None

34MB

(1) 512K x 36

(1) 4M x 36

(1) 4M x 36

None

34MB

(1) 512K x 36

(1) 8M x 36

None

None

35MB

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 8M x 36

(1) 512K x 36

(1) 512K x 36

None

36MB

(1) 8M x 36

(1) 1M x 36

None

None

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

None

36MB

(1) 1M x 36

(1) 8M x 36

None

None

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

None

40MB

(1) 8M x 36

(1) 2M x 36

None

None

40MB

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

None

40MB

(1) 2M x 36

(1) 8M x 36

None

None

44MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

None

48MB

(1) 8M x 36

(1) 4M x 36

None

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

48MB

(1) 4M x 36

(1) 8M x 36

None

None

49MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

50MB

(1) 512K x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

52MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

56MB

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

None

64MB

(1) 8M x 36

(1) 8M x 36

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

None

None

None

65MB

(1) 256K x 36

(1) 8M x 36

(1) 8M x 36

None

65MB

(1) 16M x 36

(1) 256K x 36

None

None

66MB

(1) 16M x 36

(1) 256K x 36

(1) 256K x 36

None

66MB

(1) 16M x 36

(1) 512K x 36

None

None

66MB

(1) 512K x 36

(1) 8M x 36

(1) 8M x 36

None

DRAM (CONT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

67MB

(1) 16M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

68MB

(1) 16M x 36

(1) 512K x 36

(1) 512K x 36

None

68MB

(1) 16M x 36

(1) 1M x 36

None

None

68MB

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

None

72MB

(1) 16M x 36

(1) 1M x 36

(1) 1M x 36

None

72MB

(1) 16M x 36

(1) 2M x 36

None

None

72MB

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

None

76MB

(1) 16M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

80MB

(1) 16M x 36

(1) 2M x 36

(1) 2M x 36

None

80MB

(1) 16M x 36

(1) 4M x 36

None

None

80MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

80MB

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

None

96MB

(1) 16M x 36

(1) 4M x 36

(1) 4M x 36

None

96MB

(1) 16M x 36

(1) 8M x 36

None

None

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

None

112MB

(1) 16M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 16M x 36

(1) 16M x 36

None

None

128MB

(1) 16M x 36

(1) 8M x 36

(1) 8M x 36

None

192MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

None

256MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

Note: Board also accepts x 32 SIMMs.

CACHE SIZE

Size

Bank 0

TAG

256KB

(4) 64K x 8

(1) 16K/32K x 8

512KB

(4) 128K x 8

(1) 32K x 8

CACHE JUMPER

Size

JP29

JP47

256KB (Aster TAG)

Open

Pins 2 & 3 closed

256KB (Winbond TAG)

Pins 1 & 2 closed

Open

512KB

Pins 2 & 3 closed

Pins 2 & 3 closed

CPU TYPE

Setting

JP30

JP31

JP32

JP33

UMC U5S

Open

1 & 2, 3 & 4

1 & 2, 3 & 4

3 & 4

80486SX

3 & 4

Open

2 & 3

Open

SL80486SX

3 & 4

Open

2 & 3

Open

80486SX2

3 & 4

Open

2 & 3

Open

SL80486SX2

3 & 4

Open

2 & 3

Open

CX486DX

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

TI486DX

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

SGS486DX

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

80486DX

3 & 4

3 & 4

1 & 2, 3 & 4

Open

SL80486DX

3 & 4

3 & 4

1 & 2, 3 & 4

Open

CX486DX2-50/66

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

CX486DX2-80

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

TI486DX2-50/66

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

TI486DX2-80

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

SGS486DX2-50/66

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

SGS486DX2-80

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

UMC486DX2

3 & 4

3 & 4

1 & 2, 3 & 4

Open

AM486DX2(NV8B)

1 & 2, 3 & 4

3 & 4

1 & 2, 3 & 4

Open

AM486DX2-66(NV8T)

3 & 4

1 & 2

1 & 2, 3 & 4

Open

AM486DX2-66

3 & 4

1 & 2

1 & 2, 3 & 4

Open

AM486DX2-80(NV8T)

3 & 4

1 & 2

1 & 2, 3 & 4

Open

AM486DX2-80

3 & 4

1 & 2

1 & 2, 3 & 4

Open

80486DX2

3 & 4

3 & 4

1 & 2, 3 & 4

Open

SL80486DX2

3 & 4

3 & 4

1 & 2, 3 & 4

Open

CX486DX4

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

TI486DX4

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

SGS486DX4

2 & 3

3 & 4

1 & 2, 3 & 4

2 & 3

AM486DX4(NV8T)

3 & 4

1 & 2

1 & 2, 3 & 4

Open

AM486DX4(NV8B)

1 & 2, 3 & 4

3 & 4

1 & 2, 3 & 4

Open

80486DX4 (5v)

3 & 4

3 & 4

1 & 2, 3 & 4

Open

80486DX4 (3.45v)

3 & 4

3 & 4

1 & 2, 3 & 4

Open

P24D

1 & 2, 3 & 4

3 & 4

1 & 2, 3 & 4

Open

P24T

3 & 4

2 & 3

1 & 2, 3 & 4

1 & 2

CX M1SC

1 & 2, 3 & 4

3 & 4

1 & 2, 3 & 4

Open

AM X5-150

1 & 2, 3 & 4

3 & 4

1 & 2, 3 & 4

Open

AM X5-133/160

1 & 2, 3 & 4

3 & 4

1 & 2, 3 & 4

Open

Note: Pins designated should be in the closed position.

CPU TYPE (CONT)

Setting

JP34

JP36

JP37

JP38

UMC U5S

Open

Open

Open

Open

80486SX

Open

Open

4 & 5

Open

SL80486SX

Open

Open

4 & 5

Open

80486SX2

Open

Open

4 & 5

Open

SL80486SX2

Open

Open

4 & 5

Open

CX486DX

Open

Open

2 & 3

2 & 3

TI486DX

Open

Open

2 & 3

2 & 3

SGS486DX

Open

Open

2 & 3

2 & 3

80486DX

Open

Open

4 & 5

Open

SL80486DX

Open

Open

4 & 5

Open

CX486DX2-50/66 (3.6v)

Open

Open

2 & 3

2 & 3

CX486DX2-50/66 (5v)

Open

Open

2 & 3

2 & 3

CX486DX2-80

Open

Open

2 & 3

2 & 3

TI486DX2-50/66 (3.6v)

Open

Open

2 & 3

2 & 3

TI486DX2-50/66 (5v)

Open

Open

2 & 3

2 & 3

TI486DX2-80

Open

Open

2 & 3

2 & 3

SGS486DX2-50/66 (3.6v)

Open

Open

2 & 3

2 & 3

SGS486DX2-50/66 (5v)

Open

Open

2 & 3

2 & 3

SGS486DX2-80

Open

Open

2 & 3

2 & 3

UMC486DX2

Open

Open

4 & 5

Open

AM486DX2(NV8B)

1 & 2

Open

4 & 5

1 & 2

AM486DX2-66(NV8T)

2 & 3

Open

4 & 5

Open

AM486DX2-66

2 & 3

Open

4 & 5

Open

AM486DX2-80(NV8T)

2 & 3

Open

4 & 5

Open

AM486DX2-80

2 & 3

Open

4 & 5

Open

80486DX2

Open

Open

4 & 5

Open

SL80486DX2

Open

Open

4 & 5

Open

CX486DX4

Open

Open

2 & 3

2 & 3

TI486DX4

Open

Open

2 & 3

2 & 3

SGS486DX4

Open

Open

2 & 3

2 & 3

AM486DX4(NV8T)

1 & 2

Open

4 & 5

Open

AM486DX4(NV8B)

1 & 2

Open

4 & 5

1 & 2

80486DX4 (5v)

Open

Open

4 & 5

Open

80486DX4 (3.45v)

Open

Open

4 & 5

Open

P24D

1 & 2

Open

4 & 5

1 & 2

P24T

Open

1 & 2

1 & 2

1 & 2

CX M1SC

1 & 2

Open

4 & 5

1 & 2

AM X5-150

1 & 2

Open

4 & 5

1 & 2

AM X5-133/160

1 & 2

Open

4 & 5

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE (CONT)

Setting

JP39

JP40

JP41

JP42

UMC U5S

3 & 4

1 & 3, 2 & 4

Open

2 & 3

80486SX

3 & 4

1 & 3, 2 & 4

Open

2 & 3

SL80486SX

3 & 4

1 & 3, 2 & 4

Open

2 & 3

80486SX2

3 & 4

1 & 3, 2 & 4

Open

2 & 3

SL80486SX2

3 & 4

1 & 3, 2 & 4

Open

2 & 3

CX486DX

Unidentified

1 & 3, 2 & 4

Open

2 & 3

TI486DX

Unidentified

1 & 3, 2 & 4

Open

2 & 3

SGS486DX

Unidentified

1 & 3, 2 & 4

Open

2 & 3

80486DX

3 & 4

1 & 3, 2 & 4

Open

2 & 3

SL80486DX

3 & 4

1 & 3, 2 & 4

Open

2 & 3

CX486DX2-50/66 (3.6v)

5 & 6

3 & 5, 4 & 6

Open

2 & 3

CX486DX2-50/66 (5v)

5 & 6

1 & 3, 2 & 4

Open

2 & 3

CX486DX2-80

1 & 2

3 & 5, 4 & 6

Open

2 & 3

TI486DX2-50/66 (3.6v)

5 & 6

3 & 5, 4 & 6

Open

2 & 3

TI486DX2-50/66 (5v)

5 & 6

1 & 3, 2 & 4

Open

2 & 3

TI486DX2-80

1 & 2

3 & 5, 4 & 6

Open

2 & 3

SGS486DX2-50/66 (3.6v)

5 & 6

3 & 5, 4 & 6

Open

2 & 3

SGS486DX2-50/66 (5v)

5 & 6

1 & 3, 2 & 4

Open

2 & 3

SGS486DX2-80

1 & 2

3 & 5, 4 & 6

Open

2 & 3

UMC486DX2

3 & 4

1 & 3, 2 & 4

Open

2 & 3

AM486DX2(NV8B)

3 & 4

3 & 5, 4 & 6

1 & 2

1 & 2

AM486DX2-66(NV8T)

3 & 4

3 & 5, 4 & 6

Open

2 & 3

AM486DX2-66

3 & 4

1 & 3, 2 & 4

Open

2 & 3

AM486DX2-80(NV8T)

3 & 4

3 & 5, 4 & 6

Open

2 & 3

AM486DX2-80

3 & 4

1 & 3, 2 & 4

Open

2 & 3

80486DX2

3 & 4

1 & 3, 2 & 4

Open

2 & 3

SL80486DX2

3 & 4

1 & 3, 2 & 4

Open

2 & 3

CX486DX4

3 & 4

3 & 5, 4 & 6

Open

2 & 3

TI486DX4

3 & 4

3 & 5, 4 & 6

Open

2 & 3

SGS486DX4

3 & 4

3 & 5, 4 & 6

Open

2 & 3

AM486DX4 (NV8T)

3 & 4

3 & 5, 4 & 6

Open

2 & 3

AM486DX4(NV8B)

3 & 4

3 & 5, 4 & 6

1 & 2

1 & 2

80486DX4 (5v)

3 & 4

1 & 3, 2 & 4

Open

2 & 3

80486DX4 (3.45v)

3 & 4

3 & 5, 4 & 6

Open

2 & 3

P24D

3 & 4

1 & 3, 2 & 4

1 & 2

1 & 2

P24T

3 & 4

1 & 3, 2 & 4

Open

1 & 2

CX M1SC

3 & 4

3 & 5, 4 & 6

1 & 2

2 & 3

AM X5-150

3 & 4

3 & 5, 4 & 6

1 & 2

1 & 2

AM X5-133/160

3 & 4

3 & 5, 4 & 6

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE (CONT)

Setting

JP43

JP44

JP45

JP46

UMC U5S

Open

1 & 2

2 & 3

4 & 5

80486SX

Open

1 & 2

1 & 2

2 & 3

SL80486SX

Open

1 & 2

1 & 2

2 & 3

80486SX2

Open

1 & 2

1 & 2

2 & 3

SL80486SX2

Open

1 & 2

1 & 2

2 & 3

CX486DX

Open

Open

1 & 2

1 & 2

TI486DX

Open

Open

1 & 2

1 & 2

SGS486DX

Open

Open

1 & 2

1 & 2

80486DX

Open

1 & 2

1 & 2

2 & 3

SL80486DX

Open

1 & 2

1 & 2

2 & 3

CX486DX2-50/66 (3.6v)

Open

Open

1 & 2

1 & 2

CX486DX2-50/66(5v)

Open

Open

1 & 2

1 & 2

CX486DX2-80

Open

Open

1 & 2

1 & 2

TI486DX2-50/66 (3.6v)

Open

Open

1 & 2

1 & 2

TI486DX2-50/66 (5v)

Open

Open

1 & 2

1 & 2

TI486DX2-80

Open

Open

1 & 2

1 & 2

SGS486DX2-50/66 (3.6v)

Open

Open

1 & 2

1 & 2

SGS486DX2-50/66 (5v)

Open

Open

1 & 2

1 & 2

SGS486DX2-80

Open

Open

1 & 2

1 & 2

UMC486DX2

Open

1 & 2

1 & 2

2 & 3

AM486DX2(NV8B)

1 & 2

2 & 3

1 & 2

2 & 3

AM486DX2-66(NV8T)

Open

1 & 2

1 & 2

2 & 3

AM486DX2-66

Open

1 & 2

1 & 2

2 & 3

AM486DX2-80(NV8T)

Open

1 & 2

1 & 2

2 & 3

AM486DX2-80

Open

1 & 2

1 & 2

2 & 3

80486DX2

Open

1 & 2

1 & 2

2 & 3

SL80486DX2

Open

1 & 2

1 & 2

2 & 3

CX486DX4

Open

Open

1 & 2

1 & 2

TI486DX4

Open

Open

1 & 2

1 & 2

SGS486DX4

Open

Open

1 & 2

1 & 2

AM486DX4 (NV8T)

Open

1 & 2

1 & 2

2 & 3

AM486DX4(NV8B)

Open

2 & 3

1 & 2

2 & 3

80486DX4 (5v)

Open

1 & 2

1 & 2

2 & 3

80486DX4 (3.45v)

Open

1 & 2

1 & 2

2 & 3

P24D

Open

2 & 3

1 & 2

2 & 3

P24T

Open

Open

1 & 2

2 & 3

CX M1SC

Open

2 & 3

1 & 2

2 & 3

AM X5-150

Open

2 & 3

1 & 2

2 & 3

AM X5-133/160

1 & 2

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED

Setting

JP14

JP15

JP21

JP22

25MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open

33MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Closed

40MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Open

50iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open

50MHz

Pins 2 & 3 closed

Pins 1 & 2 closed

Open

Closed

63iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open

66iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Closed

75iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open

80iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Open

83iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Closed

100iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Closed

120iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Open

133iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Closed

150iMHz

Pins 2 & 3 closed

Pins 1 & 2 closed

Open

Closed

160iMHz

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Open

DMA

Setting

JP49

JP50

None

Open

Open

DMA1

Pins 2 & 3 closed

Pins 2 & 3 closed

DMA3

Pins 1 & 2 closed

Pins 1 & 2 closed