...because we can't all be on the bleeding edge...





T386-25

ADVANCED COMPUTER TECHNOLOGY, LTD.

T386-25

Processor

80386DX

Processor Speed

25MHz

Chip Set

ACT

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

JP3

External battery

JP13

Power LED & Keylock

JP7

Speaker

JP16

Reset switch

JP12

Turbo switch

JP17

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

BIOS type select 27512

JP6

pins 1 & 2 closed

 

BIOS type select 27256

JP6

pins 2 & 3 closed

Monitor type select color

JP8

pins 2 & 3 closed

 

Monitor type select monochrome

JP8

pins 1 & 2 closed

Battery select internal

JP14

pins 2 & 3 closed

 

Battery select external

JP14

pins 1 & 2 closed

Power good signal detect from power supply

JP15

pins 1 & 2 closed

 

Power good signal detect from board

JP15

pins 2 & 3 closed

Refresh timing select normal

JP18

pins 1 & 2 closed

 

Refresh timing select fast

JP18

pins 2 & 3 closed

Parity check enabled

JP19

pins 1 & 2 closed

 

Parity check disabled

JP19

pins 2 & 3 closed

Page mode select normal 1, 2 wait state

JP20

pins 1 & 2 closed

 

Page mode select page interleave

JP20

pins 2 & 3 closed

SIMM wait state select 2 wait states (non-page mode)

JP21

pins 2 & 3 closed

 

SIMM wait state select 1 wait state (non-page mode)

JP21

pins 1 & 2 closed

DIP RAM wait state select 2 wait states (non-page mode)

JP22

pins 2 & 3 closed

 

DIP RAM wait state select 1 wait state (non-page mode)

JP22

pins 1 & 2 closed

Interleave factor banks 0-3 four way interleave disabled

SW1/3

Off

 

Interleave factor banks 0-3 four way interleave enabled

SW1/3

On

Interleave factor banks 2 and 3 interleave disabled

SW1/4

Off

 

Interleave factor banks 2 and 3 two way interleave enabled

SW1/4

On

Interleave factor banks 0 and 1 interleave disabled

SW1/5

Off

 

Interleave factor banks 0 and 1 two way interleave enabled

SW1/5

On

Note:SW1/switch 5 should be open if 1MB is installed, if memory is greater it should be closed.

SW1/switch 4 should be closed if 10MB is installed.

SW1/switch 3 should be closed if 4MB is installed.

JP20 pins 1 & 2 must be closed if 4M x 9 SIMMs are used.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

P-0

P-1

1MB

(8) 44256

NONE

NONE

NONE

(4) 41256

NONE

2MB

(8) 44256

(8) 44256

NONE

NONE

(4) 41256

(4) 41256

3MB

(8) 44256

(8) 44256

(4) 256K x 9

NONE

(4) 41256

(4) 41256

4MB

(8) 44256

(8) 44256

(4) 256K x 9

(4) 256K x 9

(4) 41256

(4) 41256

6MB

(8) 44256

(8) 44256

(4) 1M x 9

NONE

(4) 41256

(4) 41256

10MB

(8) 44256

(8) 44256

(4) 1M x 9

(4) 1M x 9

(4) 41256

(4) 41256

16MB

NONE

NONE

(4) 4M x 9

(4) 4M x 9

NONE

NONE

DRAM JUMPER/SWITCH CONFIGURATION

Size

SW1/6

SW1/7

SW1/8

JP23

1MB

Off

Off

Off

pins 2 & 3 closed

2MB

Off

Off

On

pins 2 & 3 closed

3MB

Off

On

Off

pins 2 & 3 closed

4MB

Off

On

On

pins 2 & 3 closed

6MB

On

On

Off

pins 2 & 3 closed

10MB

On

On

On

pins 2 & 3 closed

16MB

Off

Off

Off

pins 1 & 2 closed

DRAM REFRESH RATE CONFIGURATION

Size

SW1/1

SW1/2

Refreshes per hold cycle select 1

Off

Off

Refreshes per hold cycle select 2

Off

On

Refreshes per hold cycle select 4

On

Off

Refreshes per hold cycle select 8

On

On

NPU TYPE CONFIGURATION

Type

JP2

JP4

80387

pins 1 & 2 closed

pins 2 & 3 closed

3167

pins 2 & 3 closed

pins 1 & 2 closed