UNIDENTIFIED

AC 486 MODEL PGA

Processor

80486SX/80486DX/80486DX2

Processor Speed

20/25/33/50(internal)/66(internal)MHz

Chip Set

ACC

Max. Onboard DRAM

32MB

Cache

None

BIOS

AMI

Dimensions

254mm x 236mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Reset switch

J4

Turbo LED

J2

Speaker

J5

Turbo switch

J3

Power LED & keylock

J6

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select monochrome

JP1

pins 1 & 2 closed

 

Monitor type select color

JP1

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

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CPU TYPE CONFIGURATION

Type

Location

JP3

JP4

JP5

80486SX

Primary

N/A

Open

pins 2 & 3 closed

80487SX

Upgrade

pins 1 & 2 closed

Closed

N/A

80486DX

Primary

N/A

Open

pins 1 & 2, 3 & 4 closed

80486DX

Upgrade

pins 2 & 3 closed

Closed

N/A

80486DX2

Primary

N/A

Open

pins 1 & 2, 3 & 4 closed

80486DX2

Upgrade

pins 2 & 3 closed

Closed

N/A