NORTHGATE COMPUTER SYSTEMS, INC.

ELEGANCE 486 25/33

Processor              80486DX
Processor Speed        25/33MHz
Chip Set               OPTI
Max. Onboard DRAM      8MB
Cache                  128KB
BIOS                   AMI
Dimensions             350mm x 304mm
I/O Options            Parallel port, serial ports (2), 32-bit external
                       memory card slot
NPU Options            4167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  Turbo LED                  J3        Serial port 1               J9

  Power LED & keylock        J4        Serial port 2              J10

  Speaker                    J5        32-bit external             S1
                                       memory card

  Reset switch               J6        Turbo switch                W6

  Parallel port              J8

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

  »   Parallel port enabled                 SW2/3               Off

      Parallel port disabled                SW2/3                On

  »   Parallel port select LPT1             SW2/4               Off

      Parallel port select LPT2             SW2/4                On

  »   Factory configured - do not            W1                 Open
      alter

  »   Factory configured - do not            W4              pins 2 & 3
      alter                                                    closed

  »   Altered cache miss wait                W5              pins 2 & 3
      state select 25MHz CPU                                   closed

      Altered cache miss wait                W5              pins 1 & 2
      state select 33MHz CPU                                   closed

  »   Monitor type select color              W7              pins 2 & 3
                                                               closed

      Monitor type select                    W7              pins 1 & 2
      monochrome                                               closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB       (4) 256K x 9       NONE           NONE           NONE

     2MB       (4) 256K x 9   (4) 256K x 9       NONE           NONE

     3MB       (4) 256K x 9   (4) 256K x 9   (4) 256K x 9       NONE

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

     4MB        (4) 1M x 9        NONE           NONE           NONE

     5MB        (4) 1M x 9        NONE       (4) 256K x 9       NONE

     6MB        (4) 1M x 9        NONE       (4) 256K x 9   (4) 256K x 9

     8MB        (4) 1M x 9     (4) 1M x 9        NONE           NONE

     9MB        (4) 1M x 9     (4) 1M x 9    (4) 256K x 9       NONE

     10MB       (4) 1M x 9     (4) 1M x 9    (4) 256K x 9   (4) 256K x 9

     12MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9        NONE

     16MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

  Note:Banks 2 & 3 are used when a 32-bit external memory card is
  installed at S1.

                  DRAM JUMPER/SWITCH CONFIGURATION

   Size     SW1/1    SW1/2     SW1/3     SW1/4      W8        W9

   1MB      Closed    Open     Closed    Closed   2 & 3     2 & 3

   2MB      Open      Open     Closed    Open     2 & 3     2 & 3

   3MB      Open      Open     Open      Closed   2 & 3     2 & 3

   4MB      Open      Open     Open      Closed   2 & 3     2 & 3

   4MB      Closed   Closed    Closed    Closed   1 & 2     1 & 2

   5MB      Closed   Closed    Closed    Open     1 & 2     1 & 2

   6MB      Closed   Closed    Closed    Open     1 & 2     1 & 2

   8MB      Open     Closed    Closed    Open     1 & 2     1 & 2

   9MB      Open     Closed    Open      Closed   1 & 2     1 & 2

   10MB     Open     Closed    Open      Closed   1 & 2     1 & 2

   12MB     Open     Closed    Open      Closed   1 & 2     1 & 2

   16MB     Open     Closed    Open      Open     1 & 2     1 & 2

  Note:Pins designated should be in the closed position.

            CACHE CONFIGURATION

     Size          Bank 0          TAG

     64KB        (8) 64K x 1   (2) 64K x 1

     128KB       (8) 64K x 4   (2) 64K x 4

                CACHE JUMPER CONFIGURATION

        Size                W2                  W3

        64KB          pin 1 & 2 closed   pin 1 & 2 closed

       128KB          pin 2 & 3 closed   pin 2 & 3 closed

  PARALLEL PORT IRQ CONFIGURATION

    IRQ        SW3/3       SW3/4

    IRQ7        Off         On

    IRQ5         On         Off

    SERIAL PORT 1 CONFIGURATION

  Setting      SW2/1      SW3/1

  Enabled       Off         On

  Disabled      On         Off

    SERIAL PORT 2 CONFIGURATION

  Setting      SW2/2      SW3/2

  Enabled       Off         On

  Disabled      On         Off