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AP53 (Rev. 3.0)

ACER, INC.

AP53 (Rev. 3.0)

Processor

Pentium/Pentium MMX/AMK5/AMK6/CX 6x86

Processor Speed

75/90/100/120/133/150/166/200/233MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

512MB

Maximum Video Memory

None

Cache

256/512KB

BIOS

AMI

Dimensions

250mm x 220mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

CN4

IR connector

CN14

USB connector

CN5

CPU fan connector

CN15

Serial port 2

CN6

Keylock

CN16 Pins 1&2

Serial port 1

CN7

Power LED

CN16 Pins 3-5

Floppy drive interface

CN8

Speaker

CN16 Pins 7-10

Parallel port

CN9

Green PC LED

CN16 Pins 12&13

IDE interface 1

CN10

Suspend switch

CN16 Pins 15-17

IDE interface 2

CN11

Reset switch

CN16 Pins 19&20

IDE LED connector

CN12

32-bit PCI slots

PCI1-4

USER CONFIGURABLE SETTINGS

Function

Label

Position

PS/2 mouse IRQ12 enabled

JP4

Closed

 

PS/2 mouse IRQ12 disabled

JP4

Open

CMOS memory normal operation

JP5

Pins 1 & 2 closed

 

CMOS memory clear

JP5

Pins 2 & 3 closed

On board I/O controller enabled

JP8

Pins 1 & 2 closed

 

On board I/O controller disabled

JP8

Pins 2 & 3 closed

I/O voltage set at 3.43V

JP12

Pins 1 & 2 closed

 

I/O Voltage set at 3.52V

JP12

Pins 3 & 4 closed

 

Factory configured - do not alter

JP1301

Pins 2 & 3 closed

 

Factory configured - do not alter

JP1302

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(2) 512K x 36

None

8MB

(2) 1M x 36

None

8MB

(2) 512K x 36

(2) 512K x 36

12MB

(2) 512K x 36

(2) 1M x 36

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

20MB

(2) 512K x 36

(2) 2M x 36

24MB

(2) 1M x 36

(2) 2M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

36MB

(2) 512K x 36

(2) 4M x 36

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

68MB

(2) 512K x 36

(2) 8M x 36

72MB

(2) 1M x 36

(2) 8M x 36

DRAM CONFIGURATION (CONT.)

Size

Bank 0

Bank 1

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 4M x 36

(2) 8M x 36

128MB

(2) 8M x 36

(2) 8M x 36

128MB

(2) 16M x 36

None

136MB

(2) 1M x 36

(2) 16M x 36

144MB

(2) 2M x 36

(2) 16M x 36

160MB

(2) 4M x 36

(2) 16M x 36

256MB

(2) 16M x 36

(2) 16M x 36

256MB

(2) 32M x 36

None

264MB

(2) 1M x 36

(2) 32M x 36

272MB

(2) 2M x 36

(2) 32M x 36

288MB

(2) 4M x 36

(2) 32M x 36

320MB

(2) 8M x 36

(2) 32M x 36

384MB

(2) 16M x 36

(2) 32M x 36

512MB

(2) 32M x 36

(2) 32M x 36

CACHE CONFIGURATION

Size

Bank 0

256KB

(2) 32K x 32

512KB

(2) 64K x 32

CPU SPEED SELECTION (INTEL)

Speed

Clock Speed

Multiplier

JP10

JP1

75MHz

50MHz

1.5x

1 & 2, 3 & 4

1 & 2, 3 & 4

90MHz

60MHz

1.5x

1 & 2, 3 & 4

1 & 2

100MHz

66MHz

1.5x

1 & 2

3 & 4

120MHz

60MHz

2x

3 & 4, 5 & 6

1 & 2

133MHz

66MHz

2x

3 & 4, 5 & 6

3 & 4

150MHz

60 MHz

2.5x

5 & 6, 7 & 8

1 & 2

166MHz

66MHz

2.5x

5 & 6, 7 & 8

3 & 4

200MHz

66MHz

3x

1 & 2, 7 & 8

3 & 4

Note : Pins designated should be in the closed position

CPU SPEED SELECTION (INTEL MMX)

Speed

Clock Speed

Multiplier

JP10

JP1

150MHz

60MHz

2.5x

5 & 6, 7 & 8

1 & 2

166MHz

66MHz

2.5x

5 & 6, 7 & 8

3 & 4

200MHz

66MHz

3x

1 & 2, 7 & 8

3 & 4

233MHz

66MHz

3.5x

1 & 2, 3 & 4

3 & 4

Note : Pins designated should be in the closed position

CPU SPEED SELECTION (CX 6X86)

Speed

Clock Speed

Multiplier

JP10

JP1

120MHz

50MHz

2x

3 & 4, 5 & 6

1 & 2, 3 & 4

133MHz

55MHz

2x

3 & 4, 5 & 6

All open

150MHz

60MHz

2x

3 & 4, 5 & 6

1 & 2

166MHz

66MHz

2x

3 & 4, 5 & 6

3 & 4

Note : Pins designated should be in the closed position

CPU SPEED SELECTION (AMK5)

Speed

Clock Speed

Multiplier

JP10

JP1

75MHz

50MHz

1.5x

1 & 2, 3 & 4

1 & 2, 3 & 4

90MHz

60MHz

1.5x

1 & 2, 3 & 4

1 & 2

100MHz

66MHz

1.5x

1 & 2, 3 & 4

3 & 4

120MHz

60MHz

1.5x

1 & 2, 3 & 4

1 & 2

133MHz

66MHz

1.5x

1 & 2, 3 & 4

3 & 4

166MHz

66MHz

1.75x

5 & 6, 7 & 8

3 & 4

Note : Pins designated should be in the closed position

CPU SPEED SELECTION (AMK6)

Speed

Clock Speed

Multiplier

JP10

JP1

166MHz

66MHz

2.5x

5 & 5, 7 & 8

3 & 4

200MHz

66MHz

3x

1 & 2, 7 & 8

3 & 4

233MHz

66MHz

3.5x

1 & 2, 3 & 4

3 & 4

Note : Pins designated should be in the closed position

CPU VOLTAGE SELECTION (SINGLE)

Voltage

JP11

2.5V

Pins 5 & 6 closed

2.8V

Pins 9 & 10 closed

2.9V

Pins 11 & 12 closed

3.2V

Pins 7 & 8 closed

3.45V

Pins 1 & 2 closed

3.52V

Pins 3 & 4 closed

CPU VOLTAGE SELECTION (DUAL)

Voltage

JP11

JP12

JP3

JP13

2.8V

9 & 10

1 & 2

All open

1 & 2, 3 & 4

2.9V

11 & 12

1 & 2

All open

1 & 2, 3 & 4

3.2V

7 & 8

1 & 2

All open

1 & 2, 3 & 4

3.43V

1 & 2

1 & 2

1 & 2, 3 & 4

All open

3.52V

3 & 4

1 & 2

1 & 2, 3 & 4

All open

Note : Pins designated should be in the closed position