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





486 SX/DX MODEL 270

JC INFORMATION SYSTEMS CORPORATION

486 SX/DX MODEL 270

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

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

Chip Set

C & T

Max. Onboard DRAM

32MB

Cache

64/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit memory expansion slot

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J11

32 bit memory expansion slot

SL1

Power LED & keylock

J20

Reset switch

SW1

Speaker

J21

Turbo switch

SW2

Turbo LED

JP11

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Enable onboard battery

JP1

pins 2 & 3 closed

 

Enable external battery

JP1

Open

Monitor type select color

JP2

Closed

 

Monitor type select monochrome

JP2

Open

Factory configured do not alter

JP3

N/A

Factory configured do not alter

JP4

N/A

Factory configured do not alter

JP5

N/A

Factory configured do not alter

JP7

N/A

Factory configured do not alter

JP9

N/A

Factory configured do not alter

JP10

N/A

Turbo switch not available

JP11

Closed

Factory configured do not alter

JP12

N/A

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) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8