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416 SX

TANDY/RADIO SHACK

416 SX

Processor

80386SX

Processor Speed

16MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

16MB (12MB on external memory card)

Maximum Video Memory

Unidentified

Cache

None

BIOS

Unidentified

Dimensions

393mm x 381mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA port, riser slot

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

IDE interface

CN6

Serial port

CN2

Speaker

CN7

Parallel port

CN3

Speaker

CN8

VGA port

CN4

Riser slot

SL1

Floppy drive interface

CN5

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J1

Closed

 

Factory configured - do not alter

J2

Closed

Monitor type select color

J3

Pins 2 & 3 closed

 

Monitor type select monochrome

J3

Pins 1 & 2 closed

Serial port IRQ select IRQ4

J4

Pins 2 & 3 closed

 

Serial port IRQ select IRQ3

J4

Pins 1 & 2 closed

Parallel port IRQ select IRQ7

J5

Pins 2 & 3 closed

 

Parallel port IRQ select IRQ5

J5

Pins 1 & 2 closed

On board video enabled

J6

Pins 2 & 3 closed

 

On board video disabled

J6

Pins 1 & 2 closed

Video IRQ disabled

J7

Pins 2 & 3 closed

 

Video IRQ enabled

J7

Pins 1 & 2 closed

NPU not installed

J8

Pins 2 & 3 closed

 

NPU installed

J8

Pins 1 & 2 closed

Parallel port enabled

S1/1

On

 

Parallel port disabled

S1/1

Off

Parallel port address select 378 - 37F

S1/2

On

 

Parallel port address select 278 - 37F

S1/2

Off

Serial port enabled

S1/3

On

 

Serial port disabled

S1/3

Off

Serial port address select 3F8 - 3FF

S1/4

On

 

Serial port address select 2F8 - 2FF

S1/4

Off

Parallel port unidirectional

S1/5

On

 

Parallel port bidirectional

S1/5

Off

Floppy drive address select 3F0 - 3F7

S1/6

On

 

Floppy drive address select 370 - 377

S1/6

Off

Smart drive port select primary

S1/7

On

 

Smart drive port select secondary

S1/7

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

None

4MB

(2) 1M x 9

(2) 1M x 9

Note: The location of banks 0 & 1 are unidentified.

VIDEO MEMORY CONFIGURATION

Note: The size, location and chip sizes for the video memory is unidentified.