Jumper Table Summary of AP43
5V CPU Type

Jumper Settings

Intel 486SX SL-enhanced

Intel 486DX/DX2 SL-enhanced

Intel P24D

Intel P24T

Intel/AMD 486SX

Intel/AMD
486DX/DX2

Cyrix 486DX/
DX2

JP6

Open

Open

Open

1-2

Open

Open

Open

JP7

2-3

2-3

1-2

1-2

2-3

2-3

2-3

JP8

Open

Open

1-2

Open

Open

Open

Open

JP9

Open

Open

1-2

Open

Open

Open

Open

JP10

1-2

1-2

1-2

1-2

Open

Open

1-2

JP13

Open

Open

Open

1-2

Open

Open

2-3

JP14

2-3

2-3

2-3

2-3

Open

Open

1-2

JP15

2-3

1-2, 3-4

1-2, 3-4

1-2, 3-4

2-3

1-2, 3-4

1-2, 3-4

JP16

Open

3-4

3-4

2-3

Open

3-4

3-4

JP17

3-4

3-4

1-2, 3-4

3-4

Open

Open

2-3

JP18

Open

Open

1-2

1-2

Open

Open

2-3

JP19

1-2

1-2

2-3

Open

Open

Open

Open

JP20

4-5

4-5

4-5

1-2

Open

Open

2-3

JP29

2-3

2-3

2-3

2-3

2-3

2-3

2-3
3.45V CPU Type

Intel 486DX4 (W/T)

Intel 486DX4 (W/B)

AMD 486DX2

AMD 486DX4
(V8T)

AMD 486DX4-S
(SV8T)

AMD 486DX4-S (SV8B)

TI 486DX2

Cyrix
486DX2/
486DX4
(M7 P/O)

Cyrix 486DX4 (iDX4 P/O)/ 5X86

TI DX4

AMD
Am5x86

JP6

Open

Open

Open

Open

Open

Open

Open

Open

Open

Open

Open

JP7

2-3

1-2

2-3

2-3

2-3

1-2

2-3

2-3

2-3

2-3

1-2

JP8

Open

1-2

Open

Open

Open

1-2

Open

Open

1-2

Open

1-2

JP9

Open

1-2

2-3

Open

Open

1-2

Open

Open

1-2

Open

1-2

JP10

1-2

1-2

Open

Open

1-2

1-2

1-2

1-2

1-2

1-2

1-2

JP12

Open

Open

Open

Open

Open

Open

Open

Open

Open

2-3

1-2

JP13

Open

Open

Open

Open

Open

Open

2-3

2-3

Open

2-3

Open

JP14

2-3

2-3

Open

Open

2-3

2-3

1-2

1-2

2-3

1-2

2-3

JP15

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

1-2, 3-4

JP16

3-4

3-4

3-4

3-4

3-4

3-4

3-4

3-4

3-4

3-4

3-4

JP17

3-4

1-2, 3-4

Open

Open

3-4

1-2, 3-4

2-3

2-3

1-2, 3-4

2-3

1-2, 3-4

JP18

Open

1-2

Open

Open

Open

1-2

2-3

2-3

1-2

2-3

1-2

JP19

1-2

2-3

Open

Open

1-2

2-3

Open

Open

2-3

Open

2-3

JP20

4-5

4-5

Open

Open

4-5

4-5

2-3

2-3

4-5

2-3

4-5

JP29

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2
Oscillator Frequency

25 MHz

33 MHz

40 MHz

JP25

2-3

1-2

1-2

JP26

2-3

1-2

2-3

JP27

1-2

1-2

1-2
Flash ROM Type

Type

JP24

12V Flash ROM

2-3

5V EEPROM or Flash ROM

1-2
ECP DMA Channel

DMA Channel

JP22

JP23

DMA 1

2-3

2-3

DMA 3

1-2

1-2
FDC and Super I/O Chip

Function

JP21

Enabled

1-2

Disabled

2-3
Cache Type and Size

Cache Size

JP1

JP2

JP3

JP4

JP5

32 KB x 4 = 128 KB

1-2, 3-4

1-2

2-3

1-2

1-2

32 KB x 8 = 256 KB

2-3, 4-5

2-3

2-3

1-2

2-3

64 KB x 4 = 256 KB

1-2, 3-4

1-2

1-2

1-2

2-3

64 KB x 8 = 512 KB

2-3, 4-5

2-3

2-3

2-3

2-3

128 KB x 4 = 512 KB

1-2, 3-4

1-2

2-3

2-3

2-3
CMOS

Function

JP28

Normal

1-2

Clear CMOS

2-3
Onboard Connectors

Connector

Function

JP11

Reserved

JP31

HDD LED connector

J7

Multifunction connector

J8

External battery connector

CN3

2-pin fan connector

CN4

4-pin fan connector

CN2

Power connector



Last Updated: 2000/09/15