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

[Image]

                                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.