
ADDTECH RESEARCH, INC.

4GLX4

Processor      CX486SX/AM486SX/80486SX/80487SX/CX486DX/AM486DX/
               80486DX/CX486DX2(M7)/AM486DX2/80486DX2/P24D/P24T
Processor Speed25/33/40/50(internal)/66(internal)MHz
Chip Set       Unidentified
Video Chip Set None
Maximum Onboard128MB
Memory
Maximum Video  None
Memory
Cache          256/512/1024KB
BIOS           AMI
Dimensions     254mm x 218mm
I/O Options    32-bit VESA local bus slots (3)
NPU Options    None

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  External battery            JP2       Turbo LED                 JP21

  Power LED & keylock        JP16       Reset switch              JP26

  Speaker                    JP17       32-bit VESA local      SL1 - SL3
                                        bus slots

  Turbo switch               JP19

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     CMOS memory normal operation          JP1        Pins 1 & 2 closed

      CMOS memory clear                     JP1        Pins 2 & 3 closed

      Jumper information unavailable        JP3          Unidentified

      Jumper information unavailable        JP4          Unidentified

      Flash BIOS voltage select 12v         JP5        Pins 2 & 3 closed

      Flash BIOS voltage select 5v          JP5        Pins 1 & 2 closed

      Jumper information unavailable       JP18          Unidentified

      Jumper information unavailable       JP20          Unidentified

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

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

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

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

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

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

      64MB        (4) 16M x 9        None

      65MB        (4) 256K x 9   (4) 16M x 9

      65MB        (4) 16M x 9    (4) 256K x 9

      68MB        (4) 1M x 9     (4) 16M x 9

      68MB        (4) 16M x 9     (4) 1M x 9

      80MB        (4) 4M x 9     (4) 16M x 9

      80MB        (4) 16M x 9     (4) 4M x 9

     128MB        (4) 16M x 9    (4) 16M x 9

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

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

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

      1MB        (4) 128K x 8    (4) 128K x 8    (1) 128K x 8

  Note: The location of banks 0 & 1 are unidentified.

                  CACHE JUMPER CONFIGURATION

        Size                 JP11                 JP12

        256KB          Pins 1 & 2 closed   Pins 1 & 2 closed

        512KB          Pins 2 & 3 closed   Pins 2 & 3 closed

         1MB           Pins 2 & 4 closed   Pins 2 & 3 closed

                            CPU SPEED SELECTION

  Speed      JP13       JP22     JP27    JP28     JP60      JP61    JP62

  25MHz     Closed      Open     2 & 4   2 & 3   Closed     1 & 2   2 & 3

  33MHz      Open       Open     2 & 4   2 & 3   Closed     2 & 3   1 & 2

  40MHz      Open      Closed    2 & 3   1 & 2    Open      1 & 2   2 & 3

  50iMHz    Closed      Open     2 & 4   2 & 3   Closed     1 & 2   2 & 3

  50MHz      Open      Closed    1 & 2   1 & 2    Open      2 & 3   1 & 2

  66iMHz     Open       Open     2 & 4   2 & 3   Closed     2 & 3   1 & 2

                            CPU TYPE SELECTION

       Type               JP8                JP9               JP10

      80486SX          Pins 2 & 3            Open              Open
                         closed

      80487SX        Pins 1 & 2, 3 &      Pins 1 & 2          Closed
                        4 closed            closed

      80486DX        Pins 1 & 2, 3 &      Pins 2 & 3           Open
                        4 closed            closed

     80486DX2        Pins 1 & 2, 3 &      Pins 2 & 3           Open
                        4 closed            closed

       P24D          Pins 1 & 2, 3 &      Pins 1 & 2          Closed
                        4 closed            closed

       P24T          Pins 1 & 2, 3 &      Pins 1 & 2          Closed
                        4 closed            closed

            CPU TYPE SELECTION

        Type                 JP15

        Cyrix         Pins 2 & 3 closed

         AMD          Pins 1 & 2 closed

        Intel         Pins 1 & 2 closed

  VL BUS WAIT STATE SELECTION

    Setting           JP23

       0              Open

       1             Closed

