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2500 RSX (2500-1620/1621)

TANDY/RADIO SHACK

2500 RSX (2500-1620/1621)

Processor

80386SX

Processor Speed

25MHz

Chip Set

Unidentified

Video Chip Set

Accumos

Maximum Onboard Memory

9MB

Maximum Video Memory

512KB

Cache

None

BIOS

Unidentified

Dimensions

220mm x 220mm

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

VGA port

CN1

Volume control

CN5

PS/2 mouse port

CN2

IDE interface

CN6

Parallel port

CN3

Floppy drive interface

CN7

Serial port

CN4

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

E1

Open

On board video enabled

J1

Pins 1 & 2 closed

 

On board video disabled

J1

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0/1

Bank 2

1MB

1MB

None

3MB

1MB

(2) 1M x 9

9MB

1MB

(2) 4M x 9

Note: Bank 0/1 is factory installed and is not configurable. The location is unidentified.

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

256KB

256KB

None

512KB

256KB

256KB

Note: The location of banks 0 & 1 are unidentified. The size of the video memory chips are unidentified.

HARD DRIVE SELECTION

Setting

C/D

C/D+DSP

1 drive installed

Closed

N/A

2 drives installed (primary)

N/A

Closed

2 drives installed (secondary)

N/A

Open