
INTERLOGIC INDUSTRIES

SC486DX

Processor               80486DX
Processor Speed         33MHz
Chip Set                OPTI
Max. Onboard DRAM       32MB
Cache                   64/256KB
BIOS                    Award
Dimensions              350mm x 125mm
I/O Options             Bus mouse port, floppy drive interface, IDE
                        interface, parallel port, serial ports (2)
NPU Options             None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Auxiliary keyboard         CN1       IDE interface              CN9

  Power LED & keylock        CN2       Parallel port              CN10

  Speaker                    CN3       External battery           CN11

  Reset switch               CN4       Serial port 1              CN12

  IDE interface LED          CN5       Bus mouse port             CN13

  Turbo switch               CN6       Serial port 2              CN14

  Turbo LED                  CN7       Floppy drive               LED
                                       interface LED

  Floppy drive               CN8
  interface

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Bus speed select ATCLK/4 (5.5            JP1            Closed
      MHz)

      Bus speed select ATCLK/6 (8.5            JP1             Open
      MHz)

     Factory configured - do not alter        JP5           pins 2 & 3
      (selects iOSC/2)                                        closed

     Watchdog Timer mode select system        JP9           pins 1 & 2
      reset after time-out                                    closed

      Watchdog Timer mode select low           JP9           pins 2 & 3
      IOCHK# NMI after time-out                               closed

      Watchdog Timer mode select               JP9             Open
      disabled

     Floppy drive interface enabled          JP10           pins 1 & 2
                                                              closed

      Floppy drive interface disabled         JP10           pins 2 & 3
                                                              closed

     Hard drive controller enabled or        JP11           pins 2 & 3
      installed                                               closed

      Hard drive access disabled              JP11           pins 1 & 2
                                                              closed

     IDE interface enabled                   JP12           pins 1 & 2
                                                              closed

      IDE interface disabled                  JP12           pins 2 & 3
                                                              closed

     Bus mouse interrupt select IRQ5         JP13           pins 1 & 2
                                                              closed

      Bus mouse interrupt select IRQ4         JP13           pins 3 & 4
                                                              closed

      Bus mouse interrupt select IRQ3         JP13           pins 5 & 6
                                                              closed

      Bus mouse interrupt select IRQ9         JP13           pins 7 & 8
                                                              closed

      Bus mouse interrupt select none         JP13             Open
      (disabled)

     CMOS memory normal operation            JP14           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP14           pins 2 & 3
                                                              closed

     Serial port 1 select COM1 (I/O          JP15           pins 1 & 2
      address 3F8-3FFh)                                       closed

      Serial port 1 select COM3 (I/O          JP15           pins 2 & 3
      address 3E8-3EFh)                                       closed

     Serial port 1 enabled                   JP16           pins 1 & 2
                                                              closed

      Serial port 1 disabled                  JP16           pins 2 & 3
                                                              closed

     Parallel port enabled                   JP17           pins 1 & 2
                                                              closed

      Parallel port disabled                  JP17           pins 2 & 3
                                                              closed

     Serial port 2 enabled                   JP18           pins 1 & 2
                                                              closed

      Serial port 2 disabled                  JP18           pins 2 & 3
                                                              closed

     Serial port 2 select COM2 (I/O          JP19           pins 1 & 2
      address 2F8-2FFh)                                       closed

      Serial port 2 select COM4 (I/O          JP19           pins 2 & 3
      address 2E8-2EFh)                                       closed

     Bus mouse port enabled                  JP20           pins 1 & 2
                                                              closed

      Bus mouse port disabled                 JP20           pins 2 & 3
                                                              closed

     Serial port 2 interrupt select          JP21           pins 1 & 2
      IRQ3                                                    closed

      Serial port 2 interrupt select          JP21           pins 2 & 3
      IRQ4                                                    closed

     Serial port 1 interrupt select          JP22           pins 1 & 2
      IRQ4                                                    closed

      Serial port 1 interrupt select          JP22           pins 2 & 3
      IRQ3                                                    closed

     Parallel port interrupt select          JP23           pins 1 & 2
      IRQ7 (LPT1)                                             closed

      Parallel port interrupt select          JP23           pins 2 & 3
      IRQ5 (LPT2)                                             closed

     Parallel port select LPT1 (I/O          JP24           pins 1 & 2
      address 378-37Fh)                                       closed

      Parallel port select LPT2 (I/O          JP24           pins 2 & 3
      address 278-27Fh)                                       closed

     Watchdog Timer interval select          JP25            Closed
      500ms

      Watchdog Timer interval select 1        JP25             Open
      second

     Monitor type select color               JP26            Closed

      Monitor type select monochrome          JP26             Open

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 4M x 9      (4) 1M x 9

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                            CACHE CONFIGURATION

          Size                   Bank 0                  TAG (U31)

          64KB                 (8) 8K x 8               (1) 8K x 8

          256KB                (8) 32K x 8              (1) 32K x 8

  Note:The location of the TAG is unidentified and may not be present on
  some revisions.

       CACHE JUMPER CONFIGURATION

   Size      JP2       JP3       JP4

   64KB      Open     Open      Open

  256KB     Closed   Closed    Closed

                          CPU TYPE CONFIGURATION

       Type               JP6               JP7                JP8

      80486SX            Open               N/A             pins 2 & 3
                                                             closed

      80487SX           Closed           pins 2 & 3         pins 1 & 2
                                          closed             closed

      80486DX           Closed           pins 1 & 2         pins 1 & 2
                                          closed             closed

