
DIAMOND FLOWER, INC.

G486-EVB (REV. A)

Processor  CX486S/80486SX/SL80486SX/CX486S2/CX486DX/AM486DXL/80486DX/SL80486DX/CX486DX2/AM486DXT(NV8T)/80486DX2/SL80486DX2/SL80486DX4
Processor  25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Speed
Chip Set   Unidentified
Video Chip None
Set
Maximum    64MB
Onboard
Memory
Maximum    None
Video
Memory
Cache      128/256/512KB
BIOS       Unidentified
Dimensions 330mm x 218mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Green PC LED               D6       Green PC connector          JP44

  External battery          JP14      Reset switch                JP45

  Power LED & keylock       JP40      32-bit VESA local bus    SL1  SL3
                                      slots

  Speaker                   JP41

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Battery type select external            JP3           Pins 1 & 2
                                                              closed

      Battery type select internal            JP3           Pins 2 & 3
                                                              closed

     BIOS type select 27512                  JP10             Open

      BIOS type select 28F010                 JP10            Closed

     Factory configured - do not alter       JP15            Closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (1) 256K x        None           None           None
                    36

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     4MB       (1) 1M x 36        None           None           None

     8MB       (1) 1M x 36    (1) 1M x 36        None           None

     16MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     16MB      (1) 4M x 36        None           None           None

     32MB      (1) 4M x 36    (1) 4M x 36        None           None

     64MB      (1) 4M x 36    (1) 4M x 36    (1) 4M x 36     (1) 4M x 36

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

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

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

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

                     CACHE JUMPER CONFIGURATION

   Size     JP19      JP20     JP21      JP26      JP27      JP28

  128KB     Open     2 & 3     2 & 3     Closed   Closed     Open

  256KB     Open     1 & 2     1 & 2     Closed   Closed    Closed

  512KB     Closed   2 & 3     1 & 2     Closed   Closed    Closed

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION

   Speed      JP36       JP37        S1         S2         S3

   25MHz      1 & 2      1 & 2     Closed      Open       Open

   33MHz      1 & 2      1 & 2     Closed     Closed     Closed

   40MHz      1 & 2      1 & 2     Closed     Closed      Open

  50iMHz      1 & 2      1 & 2     Closed      Open       Open

  66iMHz      1 & 2      1 & 2     Closed     Closed     Closed

  75iMHz      1 & 2      1 & 2     Closed      Open       Open

  80iMHz      1 & 2      1 & 2     Closed     Closed      Open

  100iMHz     1 & 2      1 & 2     Closed     Closed     Closed

  120iMHz     1 & 2      1 & 2     Closed     Closed      Open

  Note: Pins designated should be in the closed position.

                            CPU TYPE SELECTION

       Type           JP17        JP18        JP22      JP23       JP24

      CX486S         Closed       Open       2 & 3      2 & 3     2 & 3

     80486SX          Open        Open        N/A        N/A       N/A

    SL80486SX         Open        Open       1 & 2      1 & 2     1 & 2

     CX486S2         Closed       Open       2 & 3      2 & 3     2 & 3

     CX486DX         Closed      Closed      2 & 3      2 & 3     2 & 3

     AM486DXL         Open        Open        Open      Open       Open

     80486DX          Open        Open        N/A        N/A       N/A

    SL80486DX         Open        Open       1 & 2      1 & 2     1 & 2

     CX486DX2        Closed      Closed      2 & 3      2 & 3     2 & 3

     AM486DX2         Open        Open        Open      Open       Open
      (NV8T)

     80486DX2         Open        Open        N/A        N/A       N/A

    SL80486DX2        Open        Open       1 & 2      1 & 2     1 & 2

    SL80486DX4        Open        Open       1 & 2      1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

      Type           JP25       JP29      JP30       JP31         JP49

     CX486S          Open       2 & 3     Open       Open         Open

     80486SX         N/A        2 & 3     Open       Open         N/A

    SL80486SX        Open       2 & 3     Open       Open         Open

     CX486S2         Open       2 & 3     Open       Open         Open

     CX486DX         Open       1 & 2     2 & 3     Closed        Open

    AM486DXL        Closed      1 & 2     2 & 3     Closed       Closed

     80486DX         N/A        1 & 2     2 & 3     Closed        N/A

    SL80486DX        Open       1 & 2     2 & 3     Closed        Open

    CX486DX2         Open       1 & 2     2 & 3     Closed        Open

     AM486DX2        Open       1 & 2     2 & 3     Closed        Open
     (NV8T)

    80486DX2         N/A        1 & 2     2 & 3     Closed        N/A

   SL80486DX2        Open       1 & 2     2 & 3     Closed        Open

   SL80486DX4        Open       1 & 2     2 & 3     Closed        Open

  Note: Pins designated should be in the closed position.

          CPU TYPE SELECTION

       Type               JP38

    SL-enhanced           Open

  Non SL-enhanced        Closed

                           CPU VOLTAGE SELECTION

               Voltage                                JP32

                   3.3v                     Pins 5 & 6, 7 & 8 closed

                   5v                      Pins 1 & 2, 3 & 4 closed

                        VL BUS WAIT STATE SELECTION

               Setting                                JP50

                     0                                Open

                    1                               Closed

                          VL BUS SPEED SELECTION

                 Speed                                 JP51

                  <= 33MHz                             Open

                 >33 MHz                             Closed

