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GA-586AT VER. 2x/3x

GIGA-BYTE TECHNOLOGY CO., INC.

GA-586AT VER. 2x/3x

Processor

Pentium

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

128MB

Cache

256/512KB

BIOS

Award

Dimensions

280mm x 220mm

I/O Options

32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Green PC LED

J5

Serial port 2

CN2

Reset switch

J6

Floppy drive interface

CN3

Turbo switch

J7

Parallel port

CN4

Turbo LED

J8

Chassis fan power

J1

Speaker

J9

IDE interface (primary)

J2

Power LED & keylock

J10

IDE interface (secondary)

J3

32-bit PCI slots

PC1 - PC3

Green PC connector

J4

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CPU type select VR or standard CPU

JP2

Open

 

CPU type select VRE CPU

JP2

Closed

Factory configured - do not alter

JP12

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

2MB

(2) 256K x 36

NONE

NONE

4MB

(2) 256K x 36

(2) 256K x 36

NONE

4MB

(2) 512K x 36

NONE

NONE

6MB

(2) 256K x 36

(2) 256K x 36

(2) 256K x 36

6MB

(2) 512K x 36

(2) 256K x 36

NONE

8MB

(2) 512K x 36

(2) 256K x 36

(2) 256K x 36

8MB

(2) 1M x 36

NONE

NONE

10MB

(2) 256K x 36

(2) 1M x 36

NONE

10MB

(2) 1M x 36

(2) 256K x 36

NONE

12MB

(2) 512K x 36

(2) 1M x 36

NONE

12MB

(2) 1M x 36

(2) 256K x 36

(2) 256K x 36

16MB

(2) 1M x 36

(2) 1M x 36

NONE

16MB

(2) 2M x 36

NONE

NONE

18MB

(2) 256K x 36

(2) 1M x 36

(2) 1M x 36

18MB

(2) 2M x 36

(2) 256K x 36

NONE

20MB

(2) 512K x 36

(2) 1M x 36

(2) 1M x 36

20MB

(2) 2M x 36

(2) 256K x 36

(2) 256K x 36

24MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

NONE

32MB

(2) 2M x 36

(2) 1M x 36

(2) 1M x 36

32MB

(2) 4M x 36

NONE

NONE

34MB

(2) 256K x 36

(2) 4M x 36

NONE

34MB

(2) 4M x 36

(2) 256K x 36

NONE

36MB

(2) 512K x 36

(2) 4M x 36

NONE

36MB

(2) 4M x 36

(2) 256K x 36

(2) 256K x 36

40MB

(2) 1M x 36

(2) 4M x 36

NONE

40MB

(2) 4M x 36

(2) 1M x 36

NONE

48MB

(2) 2M x 36

(2) 4M x 36

NONE

48MB

(2) 4M x 36

(2) 1M x 36

(2) 1M x 36

64MB

(2) 4M x 36

(2) 4M x 36

NONE

64MB

(2) 8M x 36

NONE

NONE

66MB

(2) 256K x 36

(2) 4M x 36

(2) 4M x 36

66MB

(2) 8M x 36

(2) 256K x 36

NONE

68MB

(2) 512K x 36

(2) 4M x 36

(2) 4M x 36

68MB

(2) 8M x 36

(2) 256K x 36

(2) 256K x 36

72MB

(2) 1M x 36

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

NONE

80MB

(2) 2M x 36

(2) 4M x 36

(2) 4M x 36

DRAM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

Bank 2

80MB

(2) 8M x 36

(2) 1M x 36

(2) 1M x 36

96MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

96MB

(2) 8M x 36

(2) 4M x 36

NONE

112MB

(2) 8M x 36

(2) 4M x 36

(2) 4M x 36

128MB

(2) 8M x 36

NONE

(2) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(8) 32K x 8

(1) 8K x 8 or (1) 32K x 8

512KB

(8) 64K x 8

(1) 16K x 8 or (1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP3

256KB

pins 1 & 2 closed

512KB

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

JP4

JP5

75MHz

pins 2 & 3 closed

pins 2 & 3 closed

90MHz

pins 1 & 2 closed

pins 1 & 2 closed

100MHz

pins 1 & 2 closed

pins 2 & 3 closed

120MHz

pins 1 & 2 closed

pins 1 & 2 closed

133MHz

pins 1 & 2 closed

pins 2 & 3 closed

150MHz

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION (VERSION 2X ONLY)

Speed

JP6

75MHz

Open

90MHz

Open

100MHz

Open

120MHz

Closed

133MHz

Closed

CPU SPEED CONFIGURATION (VERSION 3X ONLY)

Speed

JP6

75MHz

Open

90MHz

Open

100MHz

Open

120MHz

pins 1 & 2 closed

133MHz

pins 1 & 2 closed

150MHz

pins 1 & 2, 3 & 4 closed

166MHz

pins 1 & 2, 3 & 4 closed

Note: On version 3x, JP6 is a 4-pin jumper.