
COMPUTREND SYSTEMS, INC.

CONTAQ-386

Processor              80386DX/80486DX (on MS-4901 daughter board)
Processor Speed        25/33/50MHz
Chip Set               CONTAQ
Max. Onboard DRAM      32MB
Cache                  64/128/256KB
BIOS                   AMI
Dimensions             330mm x 218mm
I/O Options            Auxiliary keyboard connector
NPU Options            80387/3167

[Image]

                                CONNECTIONS

  Purpose               Location      Purpose                 Location

  Power LED &        J5 pins 1 - 5    Reset switch           J5 19 & 20
  keylock

  Speaker            J5 pins 7 - 10   External battery          JP2

  Turbo LED           J5 pins 12 &    Auxiliary                 JP7
                           13         keyboard

  Turbo switch        J5 pins 15 -
                           17

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color               JP1             Closed

      Monitor type select monochrome          JP1              Open

     Battery type select internal            JP2           pins 2 & 3
                                                              closed

      Battery type select external            JP2             Closed

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

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

      16MB        (4) 4M x 9         NONE

      17MB        (4) 4M x 9     (4) 256K x 9

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

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

                           CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG         TAG (U1)

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8     (1) 16K x 4

     128KB      (4) 32K x 8        NONE       (1) 8K x 8     (1) 16K x 4

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8    (1) 16K x 4

       CACHE JUMPER CONFIGURATION

   Size      J4A       J4B       J4C

   64KB     Closed    Open      Open

  128KB      Open    Closed     Open

  256KB      Open     Open     Closed

                          CPU TYPE CONFIGURATION

   Type        J3A       J3B        JP5        J6A       J6B        JP8

  80386DX    Closed     Open      pins 2 &   Closed      Open      Open
                                 3 closed

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

                        CPU BUS CLOCK CONFIGURATION

     Type         Bus Clock         JP3           JP4            JP6

    80386DX         CLK2/4         Closed        Closed       pins 1 & 2
                                                                closed

    80386DX         CLK2/6          Open         Closed       pins 1 & 2
                                                                closed

    80386DX         CLK2/8         Closed         Open        pins 1 & 2
                                                                closed

    80386DX        CLK2/10          Open          Open        pins 1 & 2
                                                                closed

    80386DX         7.2MHz          N/A           N/A         pins 2 & 3
                                                                closed

    80486DX        Reserved         Open          Open        pins 1 & 2
                                                                closed

    80486DX         CLK/3           Open         Closed       pins 1 & 2
                                                                closed

    80486DX         CLK/4          Closed         Open        pins 1 & 2
                                                                closed

    80486DX         CLK/6          Closed        Closed       pins 1 & 2
                                                                closed

    80486DX         7.2MHz          N/A           N/A         pins 2 & 3
                                                                closed

