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2500 SX/33

TANDY/RADIO SHACK

2500 SX/33

Processor

80386SX

Processor Speed

33MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

10MB

Maximum Video Memory

1MB

Cache

None

BIOS

Unidentified

Dimensions

391mm x 384mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA port, riser slot, headphone connector, volume control

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

Headphone connector

CN6

PS/2 mouse port

CN2

IDE interface

CN7

Parallel port

CN3

Floppy drive interface

CN8

Serial port

CN4

Riser slot

SL1

Volume control

CN5

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

On board video enabled

J1

Pins 1 & 2 closed

 

On board video disabled

J1

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

2MB

None

4MB

2MB

(2) 1M x 9

10MB

2MB

(2) 4M x 9

Note: Bank 0 is factory installed and is not configurable. The location is unidentified.

VIDEO MEMORY CONFIGURATION

Note: Board accepts 512KB/1MB of video memory. The size of the chips are unidentified. The number of banks is unidentified.