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GA-486VP

GIGA-BYTE TECHNOLOGY CO., LTD.

GA-486VP

Processor

80486SX/80487SX/CX486S/CX486S2/80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

230mm x 218mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Power LED & keylock

J9

Turbo LED

J5

32-bit VESA Local bus slot

S1

Reset switch

J6

32-bit VESA Local bus slot

S2

Turbo switch

J7

32-bit VESA Local bus slot

S3

Speaker

J8

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation

J3

pins 1 & 2 closed

 

CMOS memory clear

J3

pins 2 & 3 closed

Monitor type select CGA

J11

Closed

 

Monitor type select all others

J11

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 1M x 36

NONE

NONE

NONE

2MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

3MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

4MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

4MB

(1) 4M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

8MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

9MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

12MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

16MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

16MB

(1) 16M x 36

NONE

NONE

NONE

20MB

(1) 4M x 36

(1) 16M x 36

NONE

NONE

24MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

NONE

32MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

36MB

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

NONE

40MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

48MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

NONE

64MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

W0

W1

W2

W3

W4

64KB

pins 1 & 2

Open

Open

pins 1 & 2

pins 1 & 2

128KB

pins 1 & 2

Closed

Open

pins 2 & 3

pins 2 & 3

256KB

pins 2 & 3

Closed

Closed

pins 1 & 2

pins 2 & 3

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP3

W6

80486SX

Open

pins 2 & 3 closed

CX486S

Open

pins 2 & 3 closed

CX486S2

Closed

pins 2 & 3 closed

80487SX

Open

pins 1 & 2 closed

80486DX

Open

pins 1 & 2 closed

80486DX2

Open

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP2

JP6

W7

W8

W9

25MHz

pins 1 & 2

Open

pins 1 & 2

pins 2 & 3

pins 2 & 3

33MHz

pins 1 & 2

Open

pins 1 & 2

pins 1 & 2

pins 1 & 2

40MHz

pins 2 & 3

Closed

pins 1 & 2

pins 1 & 2

pins 2 & 3

50iMHz

pins 1 & 2

Open

pins 1 & 2

pins 2 & 3

pins 2 & 3

50MHz

pins 2 & 3

Closed

pins 2 & 3

pins 2 & 3

pins 1 & 2

66iMHz

pins 1 & 2

Open

pins 1 & 2

pins 1 & 2

pins 1 & 2

Note:Pins designated should be in the closed position.