Abit FA3

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ABIT COMPUTER CORPORATION

FA3 MAINBOARD

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

Unidentified

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI/Award

Dimensions

254mm x 218mm

I/O Options

None

NPU Options

80387DX/3167

File:35077-1.png

CONNECTIONS
Purpose Location Purpose Location

External battery

J4

Turbo switch

J7 pins 1 & 2

Reset switch

J5

Turbo LED

J7 pins 4 & 5

Speaker

J6

Power LED & keylock

J8

USER CONFIGURABLE SETTINGS
Function Jumper Position

�

Factory configured - do not alter

JP1

pins 1 & 2 closed

�

Factory configured - do not alter

JP1

pins 2 & 3 closed

�

Monitor type select monochrome

JP2

pins 2 & 3 closed

Monitor type select CGA/EGA/VGA

JP8

pins 2 & 3 closed

DRAM CONFIGURATION
Size Bank 0 Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

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 JP5 JP6

64KB

Open

pins 1 & 2 closed

128KB

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

256KB

pins 1 & 2, 3 & 4, 5 & 6 closed

pins 1 & 2 closed