
CHAINTECH COMPUTER COMPANY, LTD.

486ICP

Processor        80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed  25/33/50(internal)/66(internal)MHz
Chip Set         Intel
Max. Onboard DRAM128MB
Cache            128/256/512KB
BIOS             Award/Phoenix
Dimensions       330mm x 218mm
I/O Options      32-bit PCI local bus slots (3), special slot (1)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                 Location      Purpose                Location

  Reset switch               CN1        32-bit PCI bus        PCI1 - PCI3
                                        slots

  Speaker                    CN2        Special slot             SL1

  Power LED & keylock        CN3

  Note: The purpose of SL1 is unspecified by the manufacturer.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not              J7              Open
      alter

     Factory configured - do not             J20              Open
      alter

     Factory configured - do not             J22              Open
      alter

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

       4MB        (2) 256K x 36    (2) 256K x 36

       4MB        (2) 512K x 36         NONE

       6MB        (2) 256K x 36    (2) 512K x 36

       6MB        (2) 512K x 36    (2) 256K x 36

       8MB        (2) 512K x 36    (2) 512K x 36

       8MB         (2) 1M x 36          NONE

      10MB        (2) 256K x 36     (2) 1M x 36

      10MB         (2) 1M x 36     (2) 256K x 36

      12MB        (2) 512K x 36     (2) 1M x 36

      12MB         (2) 1M x 36     (2) 512K x 36

      16MB         (2) 1M x 36      (2) 1M x 36

      16MB         (2) 2M x 36          NONE

      18MB        (2) 256K x 36     (2) 2M x 36

      18MB         (2) 2M x 36     (2) 256K x 36

      20MB        (2) 512K x 36     (2) 2M x 36

      20MB         (2) 2M x 36     (2) 512K x 36

      24MB         (2) 1M x 36      (2) 2M x 36

      24MB         (2) 2M x 36      (2) 1M x 36

      32MB         (2) 2M x 36      (2) 2M x 36

      32MB         (2) 4M x 36          NONE

      34MB        (2) 256K x 36     (2) 4M x 36

      34MB         (2) 4M x 36     (2) 256K x 36

      36MB        (2) 512K x 36     (2) 4M x 36

      36MB         (2) 4M x 36     (2) 512K x 36

      40MB         (2) 1M x 36      (2) 4M x 36

      40MB         (2) 4M x 36      (2) 1M x 36

      48MB         (2) 2M x 36      (2) 4M x 36

      48MB         (2) 4M x 36      (2) 2M x 36

      64MB         (2) 4M x 36      (2) 4M x 36

      64MB         (2) 8M x 36          NONE

      66MB        (2) 256K x 36     (2) 8M x 36

      66MB         (2) 8M x 36     (2) 256K x 36

      68MB        (2) 512K x 36     (2) 8M x 36

      68MB         (2) 8M x 36     (2) 512K x 36

      72MB         (2) 1M x 36      (2) 8M x 36

      72MB         (2) 8M x 36      (2) 1M x 36

      80MB         (2) 2M x 36      (2) 8M x 36

         DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1

     80MB        (2) 8M x 36   (2) 2M x 36

     96MB        (2) 4M x 36   (2) 8M x 36

     96MB        (2) 8M x 36   (2) 4M x 36

     128MB       (2) 8M x 36   (2) 8M x 36

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     128KB        (4) 32K x 8        NONE         (1) 8K x 8

     256KB        (4) 32K x 8     (4) 32K x 8    (1) 32K x 8

     512KB       (4) 128K x 8        NONE        (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

    Size          J14            J15            J17             J18

   128KB         Open           Open         pins 2 & 3      pins 1 & 2
                                               closed          closed

   256KB        Closed          Open         pins 1 & 2      pins 2 & 3
                                               closed          closed

   512KB        Closed         Closed        pins 2 & 3      pins 2 & 3
                                               closed          closed

                       CPU TYPE CONFIGURATION

    Type        J1          J2         J3          J4         J5

  80486SX      Open        Open       Open       Closed      Open

  ODP486SX     Open       Closed     Closed       Open      Closed

  80487SX      Open       Closed     Closed       Open      Closed

  80486DX     Closed       Open      Closed       Open      Closed

  80486DX2    Closed       Open      Closed       Open      Closed

                          CPU SPEED CONFIGURATION

     Speed           J21            JP29          JP30          JP31

     25MHz        pins 1 & 2        Open          Open         Closed
                    closed

     33MHz        pins 2 & 3       Closed         Open          Open
                    closed

    50iMHz        pins 1 & 2        Open          Open         Closed
                    closed

    66iMHz        pins 2 & 3       Closed         Open          Open
                    closed

        PCI IRQ CONFIGURATION (INT A)

          IRQ                   J33

         IRQ5           pins 11 & 12 closed

         IRQ9            pins 9 & 10 closed

         IRQ10           pins 7 & 8 closed

         IRQ11           pins 5 & 6 closed

         IRQ14           pins 3 & 4 closed

         IRQ15           pins 1 & 2 closed

        PCI IRQ CONFIGURATION (INT B)

          IRQ                   J36

         IRQ5           pins 11 & 12 closed

         IRQ9            pins 9 & 10 closed

         IRQ10           pins 7 & 8 closed

         IRQ11           pins 5 & 6 closed

         IRQ14           pins 3 & 4 closed

         IRQ15           pins 1 & 2 closed

        PCI IRQ CONFIGURATION (INT C)

          IRQ                   J35

         IRQ5           pins 11 & 12 closed

         IRQ9            pins 9 & 10 closed

         IRQ10           pins 7 & 8 closed

         IRQ11           pins 5 & 6 closed

         IRQ14           pins 3 & 4 closed

         IRQ15           pins 1 & 2 closed

        PCI IRQ CONFIGURATION (INT D)

          IRQ                   J34

         IRQ5           pins 11 & 12 closed

         IRQ9            pins 9 & 10 closed

         IRQ10           pins 7 & 8 closed

         IRQ11           pins 5 & 6 closed

         IRQ14           pins 3 & 4 closed

         IRQ15           pins 1 & 2 closed

