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DC/DT 486SX (TC35)

TULIP COMPUTERS

DC/DT 486SX (TC35)

Processor

80486SX/80487SX/80486DX/ODP486SX

Processor Speed

20/40(internal)MHz

Chip Set

Texas Instruments

Max. Onboard DRAM

20MB

Cache

256K

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel port, serial ports(2), VGA feature connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

LED, Speaker, Batteries

J2

Serial port 2

CN2

IDE interface

J3

Parallel port

CN3

VESA feature connector

J9

Serial port 1

CN4

Floppy drive interface

J10

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Parallel port unidirectional (printer)

J20

Pins 1 & 2 closed

 

Paralled port bidirectional

J20

Pins 2 & 3 closed

Battery - Rechargeable

J21

Pins 1 & 2 closed

 

Battery - Non-rechargeable

J21

N/A

Factory configured - do not alter

J22

N/A

CPU UPGRADE TYPE CONFIGURATION

UPGRADE

J14

J18

80487SX

N/A

Pins 2 & 3 closed

80486DX

Pins 1 & 2 closed

Pins 2 & 3 closed

80486DX2

Pins 1 & 2 closed

Pins 2 & 3 closed

ODP486SX

N/A

Pins 2 & 3 closed

CACHE CONFIGURATION

Size

Bank 0

TAG

J11

64KB

(9) 8K x 8

(1) 64K x 1

N/A

256KB

(9) 32K x 8

(1) 64K x 1

Pins 1 &2, 3 & 4 closed

DRAM CONFIGURATION

Expansion from:

Expansion to:

Bank 0

4MB

8MB

(4) 1MB x 9

4MB

20MB

(4) 4MB x 9

Note: 4MB is internal memory and is not configurable.

VRAM CONFIGURATION

VRAM

J23

512KB

Pins 1 & 2 closed

1024KB

Pins 2 & 3 closed

VRAM CONFIGURATION

Expansion from:

Expansion to:

VRAM

512KB

1MB

(4) 256K x 4

Note: 512KB is internal memory and is not configurable.