Abit FU3T

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ABIT COMPUTER CORPORATION

FU3T

Processor

C&T386DX/AM386DX/80386DX

Processor Speed

33/40MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

32MB

Maximum Video Memory

None

Cache

32/64/256KB

BIOS

AMI/C & T

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387DX/3167

File:35093-1.png

CONNECTIONS
Purpose Location Purpose Location

Turbo LED

D4

Turbo switch

J50

Speaker

J18

Reset switch

J51

Power LED & keylock

J19

External battery

JP2

USER CONFIGURABLE SETTINGS
Function Label Position

�

Factory configured - do not alter

JP1

Unidentified

Jumper information unavailable

JP6

Unidentified

NPU clock mode select synchronous

JP10

Open

NPU clock mode select asynchronous

JP10

Closed

Factory configured - do not alter (33MHz CPU)

JP11

Closed

Factory configured - do not alter (40MHz CPU)

JP11

Open

�

Factory configured - do not alter

J21

Open

Monitor type select monochrome

J23

Open

Monitor type select CGA/EGA/VGA

J23

Closed

�

CMOS memory normal operation

J42

Pins 2 & 3 closed

CMOS memory clear

J42

Pins 1 & 2 closed

Turbo disabled

J50

Closed

Turbo enabled

J50

Open

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 0 & 1 TAG 2

32KB

(4) 8K x 8

None

None

(1) 8K x 8

64KB

(4) 8K x 8

(4) 8K x 8

(2) 16K x 4

None

256KB

(4) 32K x 8

(4) 32K x 8

(2) 64K x 4

None

CACHE JUMPER CONFIGURATION
Size J52 JPX1 JPX2

32KB

Pins 1 & 2 closed

Pins 1 - 8 installed

Pins 1 - 8 installed

64KB

Pins 1 & 2 closed

Pins 3 - 10 installed

Pins 3 - 10 installed

256KB

Pins 2 & 3 closed

Pins 7 - 14 installed

Pins 7 - 14 installed