
NORTHGATE COMPUTER SYSTEMS, INC.

ELEGANCE PENTIUM 90

Processor             Pentium
Processor Speed       60/66/75/90/100MHz
Chip Set              OPTI
Max. Onboard DRAM     128MB
Cache                 256/1024KB
BIOS                  AMI/Phoenix
Dimensions            330mm x 218mm
I/O Options           32-bit VESA local bus slots (2), 32-bit PCI bus slots
                      (3), floppy drive interface, IDE interfaces (2),
                      parallel port, PS/2 mouse port, serial ports (2)
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Speaker                   J5         IDE interface             J26

  Power LED &               J6         Serial port 2             J27
  keylock

  Keyboard connector        J8         Turbo LED             JP33 (pins 1
                                                                - 2)

  PS/2 mouse port           J9         IDE interface LED     JP33 (pins 3
                                                                - 4)

  IDE interface            J22         32-bit PCI bus         PC1 - PC3
                                       slots

  Serial port 1            J23         Reset switch              S1

  Parallel port            J24         32-bit VESA local      SL1 & SL2
                                       bus slots

  Floppy drive             J25
  interface

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not alter        JP1             Open

     Factory configured - do not alter        JP2             Open

     Factory configured - do not alter        JP3             Open

     Factory configured - do not alter        JP4           pins 2 & 3
                                                              closed

     Factory configured - do not alter        JP6             Open

     Factory configured - do not alter        JP8             Open

     Factory configured - do not alter       JP10           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP13             Open

     CMOS memory normal operation            JP14           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP14           pins 2 & 3
                                                              closed

     Monitor type select color               JP15            Closed

      Monitor type select monochrome          JP15             Open

     Factory configured - do not alter       JP16             Open

     I/O recovery delay delay enabled        JP19            Closed

      I/O recovery delay delay disabled       JP19             Open

     LDEV# timing select end of first        JP20             Open
      T2

      LDEV# timing select end of second       JP20            Closed
      T2

     Factory configured - do not alter       JP21             Open

     Factory configured - do not alter       JP22             Open

     Main board select SQ545                 JP23            Closed

      Main board select SQ503                 JP23             Open

     Factory configured - do not alter       JP26            Closed

     Factory configured - do not alter       JP28             Open

     Factory configured - do not alter       JP29           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP30            Closed

     Port 3F7 mode select VESA               JP31           pins 8 & 9
                                                              closed

      Port 3F7 mode select ISA                JP31           pins 7 & 8
                                                              closed

     IDE port address select primary         JP31          pins 10 & 11
                                                              closed

      IDE port address select secondary       JP31          pins 11 & 12
                                                              closed

     VESA IDE enabled                        JP31          pins 19 & 20
                                                              closed

      VESA IDE disabled                       JP31          pins 20 & 21
                                                              closed

     Parallel port IRQ select IRQ7           JP32           pins 1 & 2
                                                              closed

      Parallel port IRQ select IRQ5           JP32           pins 2 & 3
                                                              closed

     Flash EPROM select normal                W1            pins 1 & 2
      operation                                               closed

      Flash EPROM select flash                 W1            pins 2 & 3
      programming                                             closed

  Note: The location of the following jumpers are unidentified: JP1, JP2,
  JP3, JP28, JP29, & JP30.

                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

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

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

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

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

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

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

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

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

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

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

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

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

              CACHE CONFIGURATION

      Size          Bank 0           TAG

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

      1MB         (8) 128K x 8   (1) 32K x 8

  CACHE JUMPER CONFIGURATION

   Size      JP37      JP38

  256KB      Open      Open

   1MB      Closed    Closed

         CPU SPEED CONFIGURATION

  Speed      JP9       JP11      JP12

  50MHz      Open     Closed    Closed

  60MHz     Closed     Open     Closed

  66MHz      Open     Closed     Open

  75MHz      Open     Closed    Closed

  90MHz     Closed     Open     Closed

  100MHz     Open     Closed     Open

                      VESA CLOCK SPEED CONFIGURATION

                 Speed                                JP31

                  33MHz                    pins 2 & 3, 4 & 5 closed

                   25MHz                    pins 1 & 2, 4 & 5 closed

                   40MHz                    pins 1 & 2, 5 & 6 closed

                   50MHz                    pins 2 & 3, 5 & 6 closed

                       VESA CYCLE TIME CONFIGURATION

              Cycle time                               JP31

                > = 480ns                 pins 14 & 15, 17 & 18 closed

                 > = 200ns                 pins 13 & 14, 16 & 17 closed

                 > = 240ns                 pins 14 & 15, 16 & 17 closed

                 > = 383ns                 pins 13 & 14, 17 & 18 closed

  BUS SPEED CONFIGURATION

  CPU speed        JP25

   <= 33MHz        Open

   > 33MHz        Closed

                          BUS SPEED CONFIGURATION

          Setting                    JP17                    JP18

            LCLK/4                  Open                   Closed

             LCLK/2                  Open                    Open

             LCLK/3                 Closed                   Open

             LCLK/5                 Closed                  Closed

