...because we can't all be on the bleeding edge...





AP53

ACER, INC.

AP53

Processor

Pentium

Processor Speed

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

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

512MB

Maximum Video Memory

None

Cache

256KB

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, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2

CN1

Speaker

CN8 pins 7 - 10

Serial port 1

CN2

Turbo/green PC LED

CN8 pins 12 & 13

Parallel port

CN3

Turbo switch/green PC connector

CN8 pins 15 - 17

Floppy drive interface

CN4

Reset switch

CN8 pins 19 & 20

IDE interface 2

CN5

Chassis fan power

CN9

IDE interface 1

CN6

IDE interface LED

CN12

PS/2 mouse interface

CN7

32-bit PCI slots

PC1 - PC4

Power LED & keylock

CN8 pins 1 - 5

   

Note: If connector for CN8 is 12-pin, connect red wire to pin 11.

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

»

Keyboard clock select ISA clock

JP1401

Pins 1 & 2 closed

 

Keyboard clock select 12MHz clock

JP1401

Pins 3 & 4 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

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

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

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

CPU SPEED SELECTION

Speed

JP1

JP10

75MHz

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2, 3 & 4 closed

90MHz

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

100MHz

Pins 3 & 4 closed

Pins 1 & 2, 3 & 4 closed

120MHz

Pins 1 & 2 closed

Pins 3 & 4, 5 & 6 closed

133MHz

Pins 3 & 4 closed

Pins 3 & 4, 5 & 6 closed

150MHz

Pins 1 & 2 closed

Pins 5 & 6, 7 & 8 closed

166MHz

Pins 3 & 4 closed

Pins 5 & 6, 7 & 8 closed

CPU VOLTAGE SELECTION

Voltage

JP11

3.45v

Pins 1 & 2 closed

3.52v

Pins 3 & 4 closed

DMA CHANNEL SELECTION

Channel

JP6

JP7

 

1

Pins 2 & 3 closed

Pins 2 & 3 closed

»

3

Pins 1 & 2 closed

Pins 1 & 2 closed

FLASH BIOS VOLTAGE SELECTION

Voltage

JP1301

JP1302

»

5v

Pins 1 & 2 closed

Pins 1 & 2 closed

 

12v

Pins 2 & 3 closed

Pins 1 & 2 closed