TULIP COMPUTERS

TULIP 486 DC/DT (TC38)

Processor         80486SX/80487SX/80486DX/80486DX2
Processor Speed   25/33/50(internal)/66(internal)
Chip Set          Texas Instruments
Max. Onboard DRAM 20MB
Cache             None
BIOS              Phoenix
Dimensions        330mm x 218mm
I/O Options       Floppy drive interface, IDE interface, parallel port,
                  serial ports(2), VGA port
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  VGA port                    CN1      IDE interface               J3

  Parallel port               CN2      DC Power                    J7

  Serial port 2               CN3      Video Feature               J9
                                       Connector

  Serial port 1               CN4      Floppy drive interface      J10

  LED, Speaker,               J2       Chassis fan power           J13
  Batteries

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

  »   Battery - Rechargeable                   J14           Pins 1 & 2
                                                              closed

      Battery - Non-rechargeable               J14              N/A

  »   Parallel port (unidirectional)           J15           Pins 1 & 2
                                                              closed

      Parallel port (bidirectional)            J15           Pins 2 & 3
                                                              closed

                          CPU TYPE CONFIGURATION

       PQFP               PGA                J17               J18

     80486SX              None            Pins 2 & 3           N/A
                                           closed

     80486SX            80487SX           Pins 2 & 3           N/A
                                           closed

     80486SX           Overdrive          Pins 2 & 3           N/A
                                           closed

     80486SX          Overdrive R         Pins 2 & 3        Pins 1 & 2
                                           closed             closed

     80486DX              None            Pins 2 & 3           N/A
                                           closed

     80486DX           Overdrive          Pins 2 & 3           N/A
                                           closed

     80486DX          Overdrive R         Pins 2 & 3        Pins 1 & 2
                                           closed             closed

       None             80486DX           Pins 2 & 3           None
                                           closed

       None             80486DX2          Pins 2 & 3           None
                                           closed

       None            Overdrive          Pins 2 & 3           None
                                           closed

       None           Overdrive R         Pins 2 & 3           None
                                           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

  Expansion from:       Expansion to            Vram

       512KB                1MB             (1) 256K x 16

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