GIGA-BYTE TECHNOLOGY CO., INC.

GA-586AT

Processor

Pentium

Processor Speed

75/90/100MHz

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 (CON’T)

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