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V50LAN

ACER

V50LAN

Device Type

Mainboard

Processor

CX 6X86/AM K5/Pentium

Processor Speed

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

Chip Set

Intel

Video Chip Set

ATI

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

2MB

Cache

256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options (backplane)

CD-ROM interface, Ethernet 10BaseT connector, floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, PS/2 keyboard interface, serial ports (2), VGA feature connector, VGA port, riser slot, IR connector, line in, wavetable connector, audio in - CD-ROM

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

C2

IDE interface 1

CN8

Serial port 1

C3

IDE interface 2

CN9

Serial port 2

C4

Floppy drive interface

CN10

Parallel port

C5

Power LED & keylock

CN17/pins 1-5

VGA port

C6

Speaker

CN17/pins 7-10

Audio connector

CN1

Green PC LED

CN17/pins 12 & 13

ATI media connector

CN2

Turbo switch

CN17/pins 15-17

Audio in - CD-ROM

CN3

Reset switch

CN17/pins 19 & 20

Wavetable connector

CN4

Hard disk LED connector

CN20

Line in - internal

CN5

Fan connector

CN21

Fax/voice modem line in

CN6

Riser slot

SL1

VGA/Ethernet feature connector

CN7

 

 

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

CN12

Reserved

SMM switch enabled

CN16

Pins 1 & 2 closed

 

Reset switch enabled

CN16

Pins 2 & 3 closed

Factory configured - do not alter

CN16/pins 3 & 4

Reserved

BIOS type select Acer

JP2

Pins 1 & 2 closed

 

BIOS type select OEM

JP2

Pins 2 & 3 closed

Password disabled

JP3

Pins 2 & 3 closed

 

Password enabled

JP3

Pins 1 & 2 closed

Flash ROM boot block disabled

JP4

Pins 2 & 3 closed

 

Flash ROM boot block enabled

JP4

Pins 1 & 2 closed

Factory configured - do not alter

JP13

Reserved

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

BIOS ROM TYPE SELECTION

Function

JP5

Flash ROM boot block disabled

Pins 3 & 4 closed

Flash ROM boot block enabled

Pins 2 & 3 closed

Reserved

Pins 1 & 2 closed

CACHE CONFIGURATION

Note: The cache configuration is unidentified.

CACHE JUMPER CONFIGURATION

Size

JP7

JP8

256KB asynchronous or pipeline burst SRAM

Pins 1 & 2 closed

Pins 1 & 2 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 (PENTIUM)

CPU speed

Clock speed

JP6

JP9

75MHz

50MHz

Pins 1 & 4 closed

Pins 1 & 2 closed

90MHz

60MHz

Pins 2 & 5 closed

Pins 1 & 2 closed

100MHz

50MHz

Pins 1 & 4 closed

Pins 2 & 3 closed

100MHz

66MHz

Pins 3 & 6 closed

Pins 1 & 2 closed

120MHz

60MHz

Pins 2 & 5 closed

Pins 2 & 3 closed

133MHz

66MHz

Pins 3 & 6 closed

Pins 2 & 3 closed

150MHz

60MHz

Pins 2 & 5 closed

Pins 1 & 2 closed

166MHz

66MHz

Pins 3 & 6 closed

Pins 1 & 2 closed

CPU MULTIPLIER SELECTION (INTEL)

Multiplier

JP10

JP11

1.5x

Pins 1 & 2 closed

Pins 1 & 2 closed

2x

Pins 1 & 2 closed

Pins 2 & 3 closed

2.5x

Pins 2 & 3 closed

Pins 1 & 2 closed

3x

Pins 2 & 3 closed

Pins 2 & 3 closed

CPU MULTIPLIER SELECTION (AM K5)

Multiplier

JP10

JP11

3x

Pins 1 & 2 closed

Pins 1 & 2 closed

2x

Pins 1 & 2 closed

Pins 2 & 3 closed

CPU MULTIPLIER SELECTION (CX 6X86)

Multiplier

JP10

JP11

3x

Pins 1 & 2 closed

Pins 1 & 2 closed

2x

Pins 1 & 2 closed

Pins 2 & 3 closed

CPU VOLTAGE SELECTION

Voltage

JP12

3.38v

Pins 1 & 2 closed

3.52v

Pins 2 & 3 closed