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





ISA486GSi

FRONTIER INDUSTRIAL, INC.

ISA486GSi

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

25/33/40/50(internal)/66(internal)MHz

Chip Set

ALI M1219

Max. Onboard DRAM

32MB

Cache

None

BIOS

ACER

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J3 pins 1 & 4

Turbo LED

J4 pins 12 & 13

Power LED & keylock

J4 pins 1 - 5

Turbo switch

J4 pins 15,16,& 17

Speaker

J4 pins 7 - 10

Reset switch

J4 pins 19 & 20

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation

J1

Open

 

CMOS memory clear

J1

Closed

Battery type select internal

J3

pins 2 & 3 closed

 

Battery type select external

J3

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

32MB

(4) 4M x 9

(4) 4M x 9

CPU TYPE CONFIGURATION

Type

J6

J7

80486SX

Open

pins 1 & 2 closed

ODP486SX

pins 1 & 2 closed

pins 2 & 3 closed

80487SX

pins 1 & 2 closed

pins 2 & 3 closed

80486DX

pins 2 & 3 closed

pins 2 & 3 closed

80486DX2

pins 2 & 3 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

OSC1

JP8

JP9

JP10

JP11

20MHz

40MHz

2 & 3

1 & 2

1 & 2

2 & 3

25MHz

50MHz

1 & 2

2 & 3

1 & 2

2 & 3

33MHz

66MHz

1 & 2

1 & 2

1 & 2

2 & 3

50MHz

50MHz

1 & 2

2 & 3

1 & 2

2 & 3

66iMHz

66MHz

1 & 2

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.