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TOWER486

TANDON CORPORATION

TOWER486

Processor

80486SX

Processor Speed

25/33MHz

Chip Set

Unidentified

Max. Onboard DRAM

64MB (4MB or 8MB installed on board)

Cache

None

BIOS

Unidentified

Dimensions

355mm x 305mm

I/O Options

External memory card, floppy drive interface, IDE interface

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface

CN1

External battery

J8

Floppy drive interface

CN2

External memory card

SL1

USER CONFIGURABLE SETTINGS

Function

Switch

Position

256KB - 512KB memory override disabled

SW1/1

Off

 

256KB - 512KB memory override enabled

SW1/1

On

512KB - 640KB memory override disabled

SW1/2

Off

 

512KB - 640KB memory override enabled

SW1/2

On

Security enabled

SW1/3

Off

 

Security disabled

SW1/3

On

Factory configured - do not alter

SW1/4

Off

DRAM CONFIGURATION (EXTERNAL CARD)

Size

Bank 0

Bank 1

2MB

(8) 256K x 9

NONE

4MB

(8) 256K x 9

(8) 256K x 9

8MB

(8) 1M x 9

NONE

10MB

(8) 1M x 9

(8) 256K x 9

16MB

(8) 1M x 9

(8) 1M x 9

32MB

(8) 4M x 9

NONE

34MB

(8) 4M x 9

(8) 256K x 9

40MB

(8) 4M x 9

(8) 1M x 9

64MB

(8) 4M x 9

(8) 4M x 9

Note: Board is factory installed with either 4MB or 8MB. The location of the memory is unidentified. If memory card is installed, the on board memory is disabled.