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





V55LA-2

ACER, INC.

V55LA-2

Device Type

Mainboard

Processor

CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium/Pentium MMX

Processor Speed

75/90/100/120/133/150/166/180/200/233MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

2MB

Cache

256/512/1024KB

BIOS

Acer

Dimensions

254mm x 218mm

I/O Options

Floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot, USB connector, line in, wavetable connector, audio in CD-ROM

CONNECTIONS

Purpose

Location

Purpose

Location

Ethernet/multimedia connector

CN1

CPU fan power

CN18

Audio in CD-ROM

CN2

Front panel connector

CN19

USB connector

CN5

VGA port

CN21

Wavetable connector

CN6

Modem connector

CN22

PS/2 mouse port

CN8

ATI media connector

CN23

Audio connector

CN9

Line in

CN31

Floppy drive interface

CN10

Green PC connector

JP15

IDE interface 2

CN11

External battery

JP30

IDE interface 1

CN12

IDE interface LED

JP48/pins 1/3/5

Serial port 1

CN13

Power LED

JP48/pins 2/4/6

Serial port 2

CN14

Power on connector

JP50

Parallel port

CN17

Riser slot

SL1

Note: The location of CN1 is unidentified.

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

CN30

Unidentified

 

BIOS type select Acer

JP1

Pins 1 & 2 closed

 

BIOS type select OEM

JP1

Pins 2 & 3 closed

 

LED select IDE LED only

JP2

Pins 2 & 3 closed

 

LED select IDE & floppy

JP2

Pins 1 & 2 closed

 

CN19/pins 19 & 20 supports green PC

JP11

Pins 1 & 2 closed

 

UPS enabled

JP16

Pins 1 & 2 closed

 

UPS disabled

JP16

Pins 2 & 3 closed

Factory configured - do not alter

JP42

Unidentified

 

On board sound enabled

SW2/5

Off

 

On board sound disabled

SW2/5

On

 

Password disabled

SW2/6

On

 

Password enabled

SW2/6

Off

SIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(2) 32K x 32

Unidentified

512KB

(2) 64K x 32

Unidentified

1MB

(2) 128K x 32

Unidentified

CACHE JUMPER CONFIGURATION

Size

JP3

JP4

256KB

Pins 1 & 2 closed

Pins 1 & 2 closed

512KB

Pins 1 & 2 closed

Pins 2 & 3 closed

1MB

Pins 2 & 3 closed

Pins 2 & 3 closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

1MB

(2) 256K x 16

None

2MB

(2) 256K x 16

(2) 256K x 16

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

120MHz

50MHz

2x

On

On

On

Off

150MHz

60MHz

2x

On

Off

On

Off

166MHz

66MHz

2x

Off

On

On

Off

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

120MHz

50MHz

2x

On

On

On

Off

150MHz

60MHz

2x

On

Off

On

Off

166MHz

66MHz

2x

Off

On

On

Off

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

166MHz

66MHz

2.5x

Off

On

On

On

180MHz

60MHz

3x

On

Off

Off

On

200MHz

66MHz

3x

Off

On

Off

On

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

75MHz

50MHz

1.5x

On

On

Off

Off

90MHz

60MHz

1.5x

On

Off

Off

Off

100MHz

66MHz

1.5x

Off

On

Off

Off

120MHz

60MHz

2x

On

Off

On

Off

133MHz

66MHz

2x

Off

On

On

Off

166MHz

66MHz

2.5x

Off

On

On

On

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

166MHz

66MHz

2.5x

Off

On

On

On

200MHz

66MHz

3x

Off

On

Off

On

233MHz

66MHz

3.5x

Off

On

Off

Off

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

75MHz

50MHz

1.5x

On

On

Off

Off

90MHz

60MHz

1.5x

On

Off

Off

Off

100MHz

66MHz

1.5x

Off

On

Off

Off

120MHz

60MHz

2x

On

Off

On

Off

133MHz

66MHz

2x

Off

On

On

Off

150MHz

60MHz

2.5x

On

Off

On

On

166MHz

66MHz

2.5x

Off

On

On

On

200MHz

66MHz

3x

Off

On

Off

On

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

SW2/1

SW2/2

SW2/3

SW2/4

150MHz

60MHz

2.5x

On

Off

On

On

166MHz

66MHz

2.5x

Off

On

On

On

200MHz

66MHz

3x

Off

On

Off

On

CPU TYPE SELECTION

Type

JP7

Single voltage

Closed

Dual voltage

Open

CPU VOLTAGE SELECTION

Voltage

V core

JP43

JP44

3.3v

2.8v

Pins 2 & 3 closed

Pins 2 & 3 closed

3.3v

3.2v

Pins 2 & 3 closed

Pins 1 & 2 closed

3.5v

2.8v

Pins 1 & 2 closed

Pins 2 & 3 closed

3.5v

3.2v

Pins 1 & 2 closed

Pins 1 & 2 closed