
DIAMOND FLOWER, INC.

3486-ECV

Processor        80386DX/CX486DLC/AMD486DX/80486SX/80486DX/80486DX2
Processor Speed  25/33/40/50(internal)/50/66(internal)MHz
Chip Set         EFAR
Max. Onboard DRAM32MB
Cache            64/128/256KB
BIOS             AMI
Dimensions       330mm x 218mm
I/O Options      32-bit VESA local bus slots (2)
NPU Options      80387DX

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Power LED & keylock        J1       Reset switch                 J5

  Speaker                    J2       Keyboard connector           J6

  Turbo LED                  J3       External battery             J7

  Turbo switch               J4       32-bit VESA Local bus    SL1 & SL2
                                      slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Flash BIOS write protect                JP31             Open
      disabled

      Flash BIOS write protect enabled        JP31            Closed

     Factory configured - do not             JP32             Open
      alter.

     Battery select internal                 JP33          pins 2 & 3
                                                              closed

      Battery select external                 JP33          pins 1 & 2
                                                              closed

     Fast ready select disabled              JP36             Open

      Fast ready select enabled               JP36            Closed

  Note: The location of the factory configured jumper in 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

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

      16MB        (4) 4M x 9         NONE

      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

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

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

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

                        CACHE JUMPER CONFIGURATION

   Size     JP8      JP9     JP10     JP11      JP27     JP28      JP29

   64KB     2 & 3   1 & 2   1 & 2     1 & 2    Closed    Open      Open

  128KB     1 & 2   1 & 2   2 & 3     2 & 3    Closed    Closed    Open

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

  Note: pins designated should be in the closed position.

                CPU SPEED CONFIGURATION - 486SX/DX & 487SX

  Speed      JP1       JP2      JP3      JP16     JP17    JP34      JP37

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

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

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

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

  Note: pins designated should be in the closed position.

               CPU SPEED CONFIGURATION - 486DX2 & OVERDRIVE

   Speed      JP1      JP2      JP3      JP16    JP17     JP34     JP37

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

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

  Note: pins designated should be in the closed position.

                 CPU SPEED CONFIGURATION - 386DX & 486DLC

  Speed      JP1      JP2       JP3      JP16     JP17     JP34     JP37

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

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

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

  Note: pins designated should be in the closed position.

                   CPU SPEED CONFIGURATION - CX 486S/S2

  Speed      JP1       JP2      JP3      JP16     JP17    JP34      JP37

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

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

  Note: pins designated should be in the closed position.

                    CPU SPEED CONFIGURATION - AMD 486DX

  Speed      JP1       JP2      JP3     JP16     JP17     JP34     JP37

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

  Note: pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

  Type      JP6      JP7      JP19     JP23   JP24   JP25    JP26   JP30

   386      Open     Open     Closed   1 &     1 &    1 &    1 &    1 & 2
                                        2      2      2       2

  486DLC    Open     Open     Open     2 &     1 &    1 &    1 &    2 & 3
                                        3      2      2       2

   486     Closed   Closed    Open     1 &     2 &    2 &    2 &    2 & 3
                                        2      3      3       3

  Note: pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

      Type            JP20           JP21          JP22          JP35

      486SX           Open          Closed         Open          Open

      487SX          Closed       pins 1 & 2    pins 1 & 2       Open
                                     open          open

    486DX/DX2        Closed       pins 1 & 2    pins 2 & 3       Open
                                     open          open

     CX486S           Open        pins 2 & 3       Open          Open
                                     open

     CX486S2          Open        pins 2 & 3       Open         Closed
                                     open

  Note: pins designated should be in the closed position.

                         CPU JUMPER CONFIGURATION

   Type     JP6     JP7     JP19     JP23    JP24   JP25    JP26    JP30

  386DX    Open    Open    Closed    1 & 2   1 & 2  1 & 2   1 & 2   1 & 2

  486DLC   Open    Open    Closed    2 & 3   1 & 2  1 & 2   1 & 2   2 & 3

  Note: pins designated should be in the closed position.

                         CPU JUMPER CONFIGURATION

     CPU         JP6        JP7       JP19      JP20      JP21      JP22

   AMD486      Closed     Closed      Open     Closed     1 & 2    2 & 3

   CX486S      Closed     Closed      Open      Open      2 & 3     Open

    486SX      Closed     Closed      Open      Open      2 & 3     Open

  486DX/DX2    Closed     Closed      Open     Closed     1 & 2    2 & 3

  Note: pins designated should be in the closed position.

                         CPU JUMPER CONFIGURATION

     CPU        JP23      JP24      JP25      JP26       JP30      JP35

   AMD486      1 & 2     2 & 3      2 & 3     2 & 3      Open      2 & 3

   CX486S      1 & 2     2 & 3      2 & 3     2 & 3     2 & 3      Open

    486SX      1 & 2     2 & 3      2 & 3     2 & 3     2 & 3      Open

  486DX/DX2    1 & 2     2 & 3      2 & 3     2 & 3     2 & 3      Open

  Note: pins designated should be in the closed position.

                 VESA CPU TYPE CONFIGURATION

      CPU Type               JP12                 JP13

        80386          pins 1 & 2 closed   pins 2 & 3 closed

        80486          pins 2 & 3 closed   pins 1 & 2 closed

                  VESA WAIT STATE/BUS SPEED CONFIGURATION

    CPU speed        Wait states           JP14               JP15

     < 33MHz        0 wait states        pins 1 & 2         pins 1 & 2
                                          closed             closed

     > 33MHz         1 wait state        pins 2 & 3         pins 2 & 3
                                          closed             closed

