DS 486 EISA/DE 486 EISA (VER.1 TC32) Motherboard Settings and Configuration

Processor

80486SX/80486DX2

Processor Speed

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

Chip Set

Texas Instruments

Max. Onboard DRAM

132MB

Cache

None

BIOS

Phoenix

Dimensions

355mm x 304mm

I/O Options

parallel port, PS/2 mouse port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1 & 2

CN1

Primary IDE interface

J15

VGA port

CN2

Parallel port

J24

Internal video board connector

CN3

Secondary IDE interface

J26

UPS connector

CN4

Internal SCSI connector (channel A)

J204

Floppy drive interface

J2

Internal SCSI connector (channel B)

J205

Battery/loudspeaker/power-on LED

J6

External SCSI connector

J206

IDE interface LED/SCSI LED

J7

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured - do not alter

J208

N/A

»

Factory configured - do not alter

SW1/5

Off

»

Factory configured - do not alter

SW1/6

On

»

Factory configured - do not alter

SW1/7

On

»

Factory configured - do not alter

SW1/8

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

SW1/1

SW1/2

SW1/3

SW1/4

4MB

NONE

NONE

On

On

On

On

12MB

(2) 4M x 36

NONE

Off

On

On

On

20MB

(2) 4M x 36

(2) 4M x 36

On

Off

On

On

28MB

(2) 4M x 36

(2) 8M x 36

Off

Off

On

On

36MB

(2) 8M x 36

(2) 8M x 36

On

Off

Off

On

44MB

(2) 4M x 36

(2) 16M x 36

On

On

Off

On

68MB

(2) 16M x 36

(2) 16M x 36

Off

Off

Off

On

76MB

(2) 4M x 36

(2) 32M x 36

Off

On

Off

On

100MB

(2) 16M x 36

(2) 32M x 36

On

On

On

Off

132MB

(2) 32M x 36

(2) 32M x 36

Off

On

On

Off

Note:Mainboard comes with 4MB installed.