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.