
TANDY/RADIO SHACK

416 SX

Processor                  80386SX
Processor Speed            16MHz
Chip Set                   Unidentified
Video Chip Set             Unidentified
Maximum Onboard Memory     16MB (12MB on external memory card)
Maximum Video Memory       Unidentified
Cache                      None
BIOS                       Unidentified
Dimensions                 393mm x 381mm
I/O Options                Floppy drive interface, IDE interface, parallel
                           port, PS/2 mouse port, serial port, VGA port,
                           riser slot
NPU Options                80387SX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  PS/2 mouse port             CN1      IDE interface               CN6

  Serial port                 CN2      Speaker                     CN7

  Parallel port               CN3      Speaker                     CN8

  VGA port                    CN4      Riser slot                  SL1

  Floppy drive interface      CN5

                        USER CONFIGURABLE SETTINGS

                 Function                      Label         Position

     Factory configured - do not alter         J1            Closed

      Factory configured - do not alter         J2            Closed

     Monitor type select color                 J3           Pins 2 & 3
                                                              closed

      Monitor type select monochrome            J3           Pins 1 & 2
                                                              closed

     Serial port IRQ select IRQ4               J4           Pins 2 & 3
                                                              closed

      Serial port IRQ select IRQ3               J4           Pins 1 & 2
                                                              closed

     Parallel port IRQ select IRQ7             J5           Pins 2 & 3
                                                              closed

      Parallel port IRQ select IRQ5             J5           Pins 1 & 2
                                                              closed

     On board video enabled                    J6           Pins 2 & 3
                                                              closed

      On board video disabled                   J6           Pins 1 & 2
                                                              closed

     Video IRQ disabled                        J7           Pins 2 & 3
                                                              closed

      Video IRQ enabled                         J7           Pins 1 & 2
                                                              closed

     NPU not installed                         J8           Pins 2 & 3
                                                              closed

      NPU installed                             J8           Pins 1 & 2
                                                              closed

     Parallel port enabled                    S1/1             On

      Parallel port disabled                   S1/1             Off

     Parallel port address select 378 -       S1/2             On
      37F

      Parallel port address select 278 -       S1/2             Off
      37F

     Serial port enabled                      S1/3             On

      Serial port disabled                     S1/3             Off

     Serial port address select 3F8 -         S1/4             On
      3FF

      Serial port address select 2F8 -         S1/4             Off
      2FF

     Parallel port unidirectional             S1/5             On

      Parallel port bidirectional              S1/5             Off

     Floppy drive address select 3F0 -        S1/6             On
      3F7

      Floppy drive address select 370 -        S1/6             Off
      377

     Smart drive port select primary          S1/7             On

      Smart drive port select secondary        S1/7             Off

                   DRAM CONFIGURATION

       Size             Bank 0             Bank 1

       1MB           (2) 256K x 9       (2) 256K x 9

       2MB            (2) 1M x 9            None

       4MB            (2) 1M x 9         (2) 1M x 9

  Note: The location of banks 0 & 1 are unidentified.

                        VIDEO MEMORY CONFIGURATION

  Note: The size, location and chip sizes for the video memory is
  unidentified.

