NORTHGATE COMPUTER SYSTEMS, INC.

SLIMLINE 320

Processor               80386DX
Processor Speed         20MHz
Chip Set                C & T
Max. Onboard DRAM       8MB
Cache                   None
BIOS                    AMI
Dimensions              330mm x 218mm
I/O Options             Floppy drive interface, IDE interface, parallel
                        port, serial ports (2), VGA port
NPU Options             80387

[Image]

                                CONNECTIONS

  Purpose                  Location   Purpose                    Location

  Reset switch               J2       Floppy drive interface       J16

  Turbo LED                  J6       IDE interface                J17

  Power LED & keylock        J8       VGA port                     J21

  Serial port 2              J13      IDE interface LED            J23

  Serial port 1              J14      Riser card                   R1

  Parallel port              J15

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not alter        J1             Closed

  »   VGA onboard BIOS enabled                 J3            pins 2 & 3
                                                              closed

      VGA onboard BIOS disabled                J3            pins 1 & 2
                                                              closed

  »   VGA port enabled                         J4             Closed

      VGA port disabled                        J4              Open

  »   CPU speed select switchable at           J7              Open
      turbo switch (boot-up fast)

      CPU speed select slow                    J7            pins 2 & 3
                                                              closed

      Monitor type select monochrome           J9            pins 1 & 2
                                                              closed

      Monitor type select color                J9            pins 2 & 3
                                                              closed

  »   Factory configured - do not alter        J10              N/A

  »   Factory configured - do not alter        J18            Closed

  »   Factory configured - do not alter        J19            Closed

  »   Factory configured - do not alter        J20            Closed

  »   Factory configured - do not alter        J24             Open

  »   Factory configured - do not alter    SW1 pins 3 &         N/A
                                                4

  »   Factory configured - do not alter    SW1 pins 5 &         N/A
                                                6

  »   Factory configured - do not alter    SW1 pins 7 &         N/A
                                                8

  »   Serial port 1 enabled                SW3 pins 1 &        Open
                                                2

      Serial port 1 disabled               SW3 pins 1 &       Closed
                                                2

  »   Serial port2 enabled                 SW3 pins 3 &        Open
                                                4

      Serial port 2 disabled               SW3 pins 3 &       Closed
                                                4

  »   Parallel port enabled                SW3 pins 5 &        Open
                                                6

      Parallel port disabled               SW3 pins 5 &       Closed
                                                6

  »   Parallel port select LPT1            SW3 pins 7 &        Open
                                                8

      Parallel port select LPT2            SW3 pins 7 &       Closed
                                                8

  »   Factory configured - do not alter    SW4 pins 1 &       Closed
                                                2

  »   Factory configured - do not alter    SW4 pins 3 &       Closed
                                                4

  »   Factory configured - do not alter    SW4 pins 5 &       Closed
                                                6

  »   Factory configured - do not alter    SW4 pins 7 &       Closed
                                                8

  »   Factory configured - do not alter        W1              Open

  »   Floppy drive interface enabled       W5 pins 1 &         Open
                                                2

      Floppy drive interface disabled      W5 pins 1 &        Closed
                                                2

  »   IDE interface enabled                W5 pins 3 &         Open
                                                4

      IDE interface disabled               W5 pins 3 &        Closed
                                                4

  »   Floppy drive select 1-speed          W6 pins 1 &         Open
                                                2

      Floppy drive select 2-speed 1.2MB    W6 pins 1 &        Closed
      5.25"                                     2

  »   Floppy drive write precomp select    W6 pins 3 &         Open
      125ns                                     4

      Floppy drive write precomp select    W6 pins 3 &        Closed
      187ns                                     4

  »   Factory configured - do not alter        W8              Open

  Note:The location of W1 is unidentifed.

              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

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

                         DRAM JUMPER CONFIGURATION

     Size           J11            J12           SW1             SW2

      1MB          2 & 3          2 & 3         Open            Open

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

      4MB          1 & 2          1 & 2         1 & 2       5 & 6, 7 & 8

      8MB          1 & 2          1 & 2         1 & 2       1 & 2, 5 & 6,
                                                                7 & 8

  Note:Pins designated should be in the closed position.