HwMuseum | Index

ACER, INC.

AP41

Processor

AM486SX/80486SX/SL80486SX/AM486DX/CX486DX/80486DX/SL80486DX/ AM486DX2/CX486DX2/TI486DX2/80486DX2/80486DX2/SL80486DX2/ AM486DX4/CX486DX4/80486DX4/P24D/P24T/CX5X86

Processor Speed

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

Chip Set

SIS

Max. Onboard DRAM

128MB

Cache

128/256/512KB

BIOS

AMI

Dimensions

254mm x 218mm

I/O Options

Parallel port, serial ports (2), 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

IDE interface 1

CN6

Serial port 2

CN2

Floppy drive interface

CN7

Parallel port

CN3

IDE interface LED

JP6

IDE interface 2

CN4

Green PC connector

JP9

Power LED & keylock

CN5 pins 1 - 5

External battery

JP35

Speaker

CN5 pins 7 - 10

Chassis fan power

JP43

Turbo LED

CN5 pins 12 - 13

Chassis fan power

JP46

Turbo switch

CN5 pins 15 - 17

32-bit PCI slots

PC1 - PC3

Reset switch

CN5 pins 19 - 20

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

 

On board I/O enabled

JP1

pins 1 & 2 closed

 

On board I/O disabled

JP1

pins 2 & 3 closed

 

BIOS type select 12v flash ROM

JP4

pins 1 & 2 closed

 

BIOS type select 5v EEPROM or flash ROM

JP4

pins 2 & 3 closed

 

CMOS memory normal operation

JP37

pins 1 & 2 closed

 

CMOS memory clear

JP37

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

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

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

7MB

(1) 256K x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

8MB

(1) 2M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 512K x 36

(1) 512K x 36

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

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) 512K 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) 1M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

10MB

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

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) 2M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K 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) 512K x 36

(1) 2M x 36

(1) 2M x 36

NONE

18MB

(1) 512K 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

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

22MB

(1) 4M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

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

25MB

(1) 256K x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

28MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

32MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

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

38MB

(1) 8M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

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) 4M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

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) 8M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M 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) 16M x 36

(1) 256K x 36

NONE

NONE

65MB

(1) 256K x 36

(1) 8M x 36

(1) 8M x 36

NONE

66MB

(1) 512K x 36

(1) 8M x 36

(1) 8M x 36

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

67MB

(1) 16M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

68MB

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

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

70MB

(1) 16M x 36

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

72MB

(1) 2M 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

76MB

(1) 16M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

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

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

88MB

(1) 16M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

96MB

(1) 8M 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

97MB

(1) 256K x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

98MB

(1) 512K x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

100MB

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

104MB

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

112MB

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

112MB

(1) 16M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 16K x 8 or (1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 16K x 8 or (1) 32K x 8

256KB

(4) 64K x 8

NONE

(1) 16K x 8 or (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

CACHE JUMPER CONFIGURATION

Size

JP24

JP25

JP26

JP27

JP29

128KB

1 & 2

1 & 2

2 & 3

1 & 2

1 & 2, 3 & 4

256KB

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3, 4 & 5

256KB

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2, 3 & 4

512KB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3, 4 & 5

512KB

2 & 3

2 & 3

2 & 3

1 & 2

1 & 2, 3 & 4

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (5 VOLT ONLY)

Type

JP11

JP12

JP13

JP14

JP15

AM486SX

2 & 3

Open

Open

Open

Open

80486SX

2 & 3

Open

Open

Open

Open

SL80486SX

2 & 3

1 & 2

Open

Open

Open

AM486DX

2 & 3

Open

Open

Open

Open

CX486DX

2 & 3

1 & 2

Open

Open

Open

80486DX

2 & 3

Open

Open

Open

Open

SL80486DX

2 & 3

1 & 2

Open

Open

Open

AM486DX2

2 & 3

Open

Open

Open

Open

CX486DX2

2 & 3

1 & 2

Open

Open

Open

80486DX2

2 & 3

Open

Open

Open

Open

SL80486DX2

2 & 3

1 & 2

Open

Open

Open

P24D

1 & 2

1 & 2

Open

1 & 2

1 & 2

P24T

1 & 2

1 & 2

1 & 2

Open

Open

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (5 VOLT ONLY, CON’T)

Type

JP16

JP17

JP18

JP19

JP20

AM486SX

Open

Open

2 & 3

Open

Open

80486SX

Open

Open

2 & 3

Open

Open

SL80486SX

Open

3 & 4

2 & 3

Open

Open

AM486DX

Open

Open

1 & 2, 3 & 4

Open

3 & 4

CX486DX

2 & 3

2 & 3

1 & 2, 3 & 4

2 & 3

3 & 4

80486DX

Open

Open

1 & 2, 3 & 4

Open

3 & 4

SL80486DX

Open

3 & 4

1 & 2, 3 & 4

Open

Open

AM486DX2

Open

Open

1 & 2, 3 & 4

Open

3 & 4

CX486DX2

2 & 3

2 & 3

1 & 2, 3 & 4

2 & 3

3 & 4

80486DX2

Open

Open

1 & 2, 3 & 4

Open

3 & 4

SL80486DX2

Open

3 & 4

1 & 2, 3 & 4

Open

Open

P24D

1 & 2

1 & 2, 3 & 4

1 & 2, 3 & 4

Open

3 & 4

P24T

1 & 2

3 & 4

1 & 2, 3 & 4

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (5 VOLT ONLY, CON’T)

Type

JP21

JP22

JP23

JP40

AM486SX

Open

Open

Open

pins 1 & 3, 2 & 4 closed

80486SX

Open

Open

Open

pins 1 & 3, 2 & 4 closed

SL80486SX

pins 4 & 5 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 3, 2 & 4 closed

AM486DX

Open

Open

Open

pins 1 & 3, 2 & 4 closed

CX486DX

pins 2 & 3 closed

Open

pins 1 & 2 closed

pins 1 & 3, 2 & 4 closed

80486DX

Open

Open

Open

pins 1 & 3, 2 & 4 closed

SL80486DX

pins 4 & 5 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 3, 2 & 4 closed

AM486DX2

Open

Open

Open

pins 1 & 3, 2 & 4 closed

CX486DX2

pins 2 & 3 closed

Open

pins 1 & 2 closed

pins 1 & 3, 2 & 4 closed

80486DX2

Open

Open

Open

pins 1 & 3, 2 & 4 closed

SL80486DX2

pins 4 & 5 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 3, 2 & 4 closed

P24D

pins 4 & 5 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 3, 2 & 4 closed

P24T

pins 1 & 2 closed

Open

pins 2 & 3 closed

pins 1 & 3, 2 & 4 closed

CPU TYPE CONFIGURATION (3.45 VOLT ONLY)

Type

JP11

JP12

JP13

JP14

JP15

AM486DX2

2 & 3

Open

Open

2 & 3

Open

CX486DX2

2 & 3

1 & 2

Open

Open

Open

TI486DX2

2 & 3

1 & 2

Open

Open

Open

AM486DX4

2 & 3

Open

Open

Open

Open

AM486DX4 (SV8B)

1 & 2

1 & 2

Open

1 & 2

1 & 2

AM486DX4 (SV8T)

2 & 3

1 & 2

Open

Open

Open

CX486DX4

2 & 3

1 & 2

Open

1 & 2

1 & 2

CX486DX4 (M7)

2 & 3

1 & 2

Open

Open

Open

80486dx4 (wb)

1 & 2

1 & 2

Open

1 & 2

1 & 2

80486dx4 (wT)

2 & 3

1 & 2

Open

Open

Open

CX5X86

2 & 3

1 & 2

Open

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (3.45 VOLT ONLY, CON’T)

Type

JP16

JP17

JP18

JP19

JP20

AM486DX2

Open

Open

1 & 2, 3 & 4

Open

3 & 4

CX486DX2

2 & 3

2 & 3

1 & 2, 3 & 4

2 & 3

3 & 4

TI486DX2

2 & 3

2 & 3

1 & 2, 3 & 4

2 & 3

3 & 4

AM486DX4

Open

Open

1 & 2, 3 & 4

Open

3 & 4

AM486DX4 (SV8B)

1 & 2

1 & 2, 3 & 4

1 & 2, 3 & 4

Open

3 & 4

AM486DX4 (SV8T)

Open

3 & 4

1 & 2, 3 & 4

Open

3 & 4

CX486DX4

1 & 2

1 & 2, 3 & 4

1 & 2, 3 & 4

Open

3 & 4

CX486DX4 (M7)

2 & 3

2 & 3

1 & 2, 3 & 4

2 & 3

3 & 4

80486dx4 (wb)

1 & 2

1 & 2, 3 & 4

1 & 2, 3 & 4

Open

3 & 4

80486dx4 (wT)

Open

3 & 4

1 & 2, 3 & 4

Open

3 & 4

CX5X86

1 & 2

1 & 2, 3 & 4

1 & 2, 3 & 4

Open

3 & 4

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (3.45 VOLT ONLY, CON’T)

Type

JP21

JP22

JP23

JP40

AM486DX2

Open

Open

Open

3 & 5, 4 & 6

CX486DX2

2 & 3

Open

1 & 2

3 & 5, 4 & 6

TI486DX2

2 & 3

Open

1 & 2

3 & 5, 4 & 6

AM486DX4

Open

Open

Open

3 & 5, 4 & 6

AM486DX4 (SV8B)

4 & 5

2 & 3

2 & 3

3 & 5, 4 & 6

AM486DX4 (SV8T)

4 & 5

1 & 2

2 & 3

3 & 5, 4 & 6

CX486DX4

4 & 5

2 & 3

2 & 3

3 & 5, 4 & 6

CX486DX4 (M7)

2 & 3

Open

1 & 2

3 & 5, 4 & 6

80486dx4 (wb)

4 & 5

2 & 3

2 & 3

3 & 5, 4 & 6

80486dx4 (wT)

4 & 5

1 & 2

2 & 3

3 & 5, 4 & 6

CX5X86

4 & 5

2 & 3

2 & 3

3 & 5, 4 & 6

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP30

JP31

JP32

25MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

33MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

40MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

50iMHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

66iMHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

75iMHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

100iMHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

DMA CONFIGURATION

DMA

JP2

JP3

DMA 1

pins 2 & 3 closed

pins 2 & 3 closed

DMA 3

pins 1 & 2 closed

pins 1 & 2 closed