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Acer Altos System 400 1120SX

From Higher Intellect Vintage Wiki

Jumper Settings[edit]

Processor

80386SX

Processor Speed

20MHz

Chip Set

Unidentified

Max. Onboard DRAM

8MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

Parallel port, serial ports (2), PS/2 mouse interface, VGA port, riser slot

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Keyboard interface

J2

Serial port 2

CN2

PS/2 mouse interface

J3

Parallel port

CN3

Turbo LED

J4

Video board port

CN4

Riser slot

SL1

Reset switch

J5

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Key lock enabled

J1

Open

 

Key lock disabled

J1

Closed

»

On board VGA enabled

J5

Closed

 

On board VGA disabled

J5

Open

»

Password enabled

J6

pins 1 & 2 closed

 

Password disabled

J6

pins 2 & 3 closed

»

All disabled

J7

Open

 

0 wait state enabled

J7

pins 1 & 2 closed

 

IRQ9 enabled

J7

pins 2 & 3 closed

»

All disabled

J8

Open

 

IOCS16 enabled

J8

pins 1 & 2 closed

 

Refresh enabled

J8

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

2MB

NONE

NONE

NONE

4MB

2MB

(2) 1M x 9

NONE

NONE

8MB

2MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

Note: Bank 0 is factory installed and is not configurable.

See Also[edit]