...because we can't all be on the bleeding edge...





4100 MT

TANDY/RADIO SHACK

4100 MT

Processor

80486SX/ODP486SX/80487SX/80486DX/80486DX2/ODP486DX2

Processor Speed

25/33/50(internal)/66(internal)MHz

Chip Set

Unidentified

Video Chip Set

ATI

Maximum Onboard Memory

64MB

Maximum Video Memory

2MB

Cache

64/256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, VGA feature connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface

J22

Floppy drive interface

J24

VGA feature connector

J23

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

On board video enabled

SW1/1

Off

 

On board video disabled

SW1/1

On

»

Factory configured - do not alter

SW1/2

Off

»

Factory configured - do not alter

SW1/3

Off

 

Password enabled

SW1/4

Off

 

Password disabled

SW1/4

On

 

Monitor type select color

SW1/5

On

 

Monitor type select monochrome

SW1/5

Off

»

Factory configured - do not alter

SW1/6

Off

»

Factory configured - do not alter

SW1/7

Off

 

Setup access enabled

SW1/8

Off

 

Setup access disabled

SW1/8

On

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

None

None

None

2MB

(1) 256K x 36

(1) 256K x 36

None

None

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

None

None

None

5MB

(1) 1M x 36

(1) 256K x 36

None

None

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

None

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

None

None

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

None

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

None

None

None

17MB

(1) 4M x 36

(1) 256K x 36

None

None

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

None

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

None

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

None

25MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

None

None

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

None

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

None

37MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

49MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CACHE CONFIGURATION

Size

Bank 0

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

E7

E8

64KB

Open

Open

256KB

Closed

Closed

VIDEO MEMORY CONFIGURATION

Note: Board accepts 512KB/2MB of video memory. The size of the chips are unidentified. The number of banks is unidentified.

CPU TYPE SELECTION

Type

E9

E10

E11

E12

E13

80486SX

Open

2 & 3

1 & 2

Open

2 & 3

ODP486SX

1 & 2

1 & 2

2 & 3

Closed

2 & 3

80487SX

1 & 2

1 & 2

2 & 3

Closed

2 & 3

80486DX

2 & 3

1 & 2

1 & 2

Closed

2 & 3

80486DX2

2 & 3

1 & 2

1 & 2

Closed

2 & 3

ODP486DX2

1 & 2

1 & 2

2 & 3

Closed

1 & 2

Note: Pins designated should be in the closed position.