
DIAMOND FLOWER, INC.

G486ECV-AIO

Processor   80486SX/CX486S/80487SX/CX486S2/CX486DX/80486DX/ODP486SX/

            80486DX2/CX486DX2/80486DX4/Pentium Overdrive
Processor   25/33/50(internal)/66(internal)/99(internal)MHz
Speed
Chip Set    EFAR
Max. Onboard64MB
DRAM
Cache       128/256/512/1024KB
BIOS        Award
Dimensions  330mm x 218mm
I/O Options Floppy drive interface, IDE interface, LAN, parallel port,
            PS/2 mouse port,

            riser card, serial ports (2), VGA feature connector
NPU Options None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  BNC connector              CN1       AUI connector              J5

  RJ-45 connector            CN2       PS/2 mouse port            J6

  Serial port 1              CN3       12V DC power CPU           J9
                                       cooling fan

  Serial port 2              CN4       Power LED & keylock        J10

  Parallel port              CN5       Reset switch               J11

  Analog connector           CN6       Feature connector          J13

  IDE interface              J2        Standby mode LED          JP81

  LAN extra connector        J3        Standby mode switch       JP86
                                       connector

  Floppy drive               J4        Keyboard connector         KB1
  interface

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Internal speaker enabled                 J8           pins 1 & 2
                                                              closed

      External speaker enabled                 J8              Open

     Factory configured - do not             JP2              Open
      alter

     Monitor type select color               JP4           pins 1 & 2
                                                              closed

      Monitor type select monochrome          JP4           pins 2 & 3
                                                              closed

     Password normal operation               JP5              Open

      Password clear                          JP5             Closed

     Factory configured - do not             JP9              Open
      alter

     Factory configured - do not             JP10             Open
      alter

     Factory configured - do not             JP11             Open
      alter

     Factory configured - do not             JP12             Open
      alter

     Factory configured - do not             JP13             Open
      alter

     Factory configured - do not             JP14             Open
      alter

     Factory configured - do not             JP15             Open
      alter

     Factory configured - do not             JP16            Closed
      alter

     Factory configured - do not             JP20          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP21          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP24          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP25            Closed
      alter

     Factory configured - do not             JP34          pins 2 & 3
      alter                                                   closed

     LAN buffer size 16K                     JP35             Open

      LAN buffer size 64K                     JP35            Closed

     Factory configured - do not             JP39             Open
      alter

     Factory configured - do not             JP40             Open
      alter

     Factory configured - do not             JP41             Open
      alter

     Factory configured - do not             JP42             Open
      alter

     Factory configured - do not             JP43             Open
      alter

     Factory configured - do not             JP44             Open
      alter

     Factory configured - do not             JP45             Open
      alter

     Factory configured - do not             JP46             Open
      alter

                    USER CONFIGURABLE SETTINGS (CONT.)

                Function                     Jumper          Position

     Flash EPROM 5V                          JP50           pins 1 & 2
                                                              closed

      Flash EPROM 12V                         JP50           pins 2 & 3
                                                              closed

     Flash EPROM type Intel 28F010           JP51           pins 1 & 2
                                                              closed

      Flash EPROM type Intel 28F010           JP51           pins 2 & 3
                                                              closed

     EPROM enabled                           JP52           pins 2 & 3
                                                              closed

      Flash EPROM enabled                     JP52           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP54           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP56           pins 1 & 2
                                                              closed

     5V CPU voltage select                   JP57         pins 1 & 3 and
                                                               2 & 4

      3V CPU voltage select                   JP57         pins 3 & 5 and
                                                               4 & 6

     VESA VGA enabled                        JP64         pins 1 & 2 and
                                                               3 & 4

      VESA VGA disabled                       JP64             Open

     Factory configured - do not alter       JP68         pins 1 & 2 and
                                                               5 & 6

     CPU clock running at 33MHz              JP71             Open

      CPU clock running at 50MHz              JP71           pins 1 & 2
                                                              closed

     Local bus timing selector 1             JP71             Open

      Local bus timing selector 2             JP71           pins 3 & 4
                                                              closed

      VESA VL bus of 72Hz at modes 3,         JP71           pins 5 & 6
      12, 5E, & 5F                                            closed

      VESA VL bus of 60Hz at modes 3,         JP71             Open
      12, 5E, & 5F

     Intel 80486DX4/99 standby mode          JP73           pins 1 & 2
      CPU fan control disabled                                closed

      Intel 80486DX4/99 standby mode          JP73           pins 2 & 3
      CPU fan control enabled                                 closed

     Factory configured - do not alter       JP76            Closed

     Factory configured - do not alter       JP77            Closed

     Factory configured - do not alter       JP78            Closed

     Factory configured - do not alter       JP79            Closed

     Factory configured - do not alter       JP80           pins 2 & 3
                                                              closed

     Green PC enabled                        JP82            Closed

      Green PC disabled                       JP82             Open

     Standby mode reduces the clock to       JP83            Closed
      8 MHz

      Clock is unchanged under standby        JP83             Open
      mode

     Flush Ethernet setting disabled         JP89           pins 2 & 3
                                                              closed

      Flush Ethernet setting enabled          JP89           pins 1 & 2
                                                              closed

     LAN enabled                             JP90           pins 1 & 2
                                                              closed

      LAN disabled                            JP90           pins 2 & 3
                                                              closed

  Note:Pins designated should be in the closed position.

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

     2MB         (1) 256K x    (1) 256K x        NONE           NONE
                    36             36

     2MB         (1) 512K x       NONE           NONE           NONE
                    36

     3MB         (1) 256K x    (1) 256K x     (1) 256K x        NONE
                    36             36             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

     4MB         (1) 512K x       NONE        (1) 512K x        NONE
                    36                            36

                        DRAM CONFIGURATION (CONT.)

     Size          Bank 0         Bank 1        Bank 2         Bank 3

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

      8MB       (1) 2M x 36        NONE          NONE           NONE

     12MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36       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

     16MB       (1) 2M x 36        NONE       (1) 2M x 36       NONE

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

     32MB       (1) 8M x 36        NONE          NONE           NONE

     48MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36       NONE

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

     64MB       (1) 8M x 36        NONE       (1) 8M x 36       NONE

                            CACHE CONFIGURATION

  Size     Bank 0   Bank 1   TAG/U21    TAG/U21A    JP17    JP18    JP28

  128KB     (4)     NONE     (1) 32K    (1) 128K    2 & 3   2 & 3   2 & 3
           32K x               x 8        x 8
             8

  256KB     (4)      (4)     (1) 32K    (1) 128K    2 & 3   1 & 2   1 & 2
           32K x    32K x      x 8        x 8
             8        8

  512KB     (4)     NONE     (1) 32K    (1) 128K    1 & 2   2 & 3   2 & 3
           128K x              x 8        x 8
             8

   1MB      (4)      (4)     (1) 128K   (1) 128K    1 & 2   1 & 2   1 & 2
           128K x   128K x     x 8        x 8
             8        8

  Note:Pins designated should be in the closed position.

                        CACHE JUMPER CONFIGURATION

       Size         JP31/pins 1 & 2    JP31/pins 3 & 4   JP31/pins 5 & 6

      128KB              Open               Open               Open

      256KB             Closed              Open               Open

      512KB             Closed             Closed              Open

       1MB              Closed             Closed             Closed

          VIDEO MEMORY CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (8) 256K x 4       NONE

      2MB         (8) 256K x 4   (8) 256K x 4

                          CPU TYPE CONFIGURATION

     Type         JP6     JP7      JP8     JP58    JP59 &   JP61    JP62
                                                   JP60

    80486SX       N/A     N/A      N/A     pins    pins 2   pins    Open
                                           1 & 2    & 3     1 & 2

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

    80487SX       N/A     N/A      N/A     pins    pins 2   pins    pins
                                           1 & 2    & 3     1 & 2   1 & 2

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

    CX486DX      Closed   Open    Closed   pins    pins 2   pins    pins
                                           2 & 3    & 3     2 & 3   2 & 3

   ODP486SX       N/A     N/A      N/A     pins    pins 2   pins    pins
                                           1 & 2    & 3     1 & 2   1 & 2

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

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

   CX486DX2      Closed   Open    Closed   pins    pins 2   pins    pins
                                           2 & 3    & 3     2 & 3   2 & 3

   80486DX4       N/A     N/A      N/A     pins    pins 2   pins    pins
                                           1 & 2    & 3     1 & 2   1 & 2

    Pentium       N/A     N/A      N/A     pins    pins 1   pins    pins
   Overdrive                               1 & 2    & 2     1 & 2   1 & 2

  Note:Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

    Speed      JP53/pins 1 &   JP53/pins 3 &    JP53/pins 5 &     JP67
                    2                4               6

    25MHz          Open            Open            Closed         Open

    33MHz         Closed          Closed           Closed         Open

   50i MHz         Open            Open            Closed        pins 2 &
                                                                    3

   66i MHz        Closed          Closed           Closed         Open

   99i MHz        Closed          Closed           Closed         Open

  Note:Pins designated should be in the closed position.

                       CPU WRITE-BACK CONFIGURATION

             Type                       JP74                  JP75

            Other CPUs                 Open           pins 2 & 3 closed

          Cyrix write-back       pins 1 & 2 closed     pins 2 & 3 closed

          Intel write-back       pins 2 & 3 closed     pins 2 & 3 closed

           No write-back                N/A            pins 1 & 2 closed

                     SYSTEM MANAGEMENT MODE CPU SELECT

           Type                      JP63                    JP65

            Other                   Open                    Open

           Cyrix SMM          pins 2 & 3 closed       pins 1 & 2 closed

           Intel SMM          pins 1 & 2 closed       pins 2 & 3 closed

                  VESA WAIT STATE/BUS SPEED CONFIGURATION

    CPU speed         Wait states           JP36               JP37

      <=33MHz        0 wait states       pins 2 & 3         pins 1 & 2
                                           closed             closed

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

                       VESA VL-BUS VGA CONFIGURATION

        Refresh rates           JP72/pins 1 & 2        JP72/pins 3 & 4

       87Hz Interlaced                Open                   Open

     60Hz Non-interlaced             Closed                 Closed

     70Hz Non-interlaced             Closed                  Open

     72Hz Non-interlaced             Closed                 Closed

  Note:When using the built-in VESA VL-bus VGA, pins 1 to 8 should be set
  to match the refresh rates of the monitor attached to the G486ECV-AIO.

                              ECP DACK SELECT

  Refresh rates     JP26/pins 1 & 2    JP26/pins 3 & 4    JP26/pins 5 & 6

       Dack 1            Open             Closed              Open

        Dack 0           Closed             Open               Open

        Dack 3            Open              Open              Closed

                              ECP DRQ SELECT

  Refresh rates     JP27/pins 1 & 2    JP27/pins 3 & 4    JP27/pins 5 & 6

        DRQ1             Open             Closed              Open

         DRQ0            Closed             Open               Open

         DRQ3             Open              Open              Closed

                      PARALLEL PORT INTERRUPT SELECT

           IRQ                      JP48                    JP49

            IRQ7             pins 1 & 2 closed       pins 2 & 3 closed

             IRQ5             pins 2 & 3 closed       pins 1 & 2 closed

  Note:The default for JP49 is pins 1 & 2 closed.

                        CPU FAN TYPE CONFIGURATION

           Fan                 JP84            JP85             JP87

            12V              Closed           Open             N/A

             5V                Open           Closed         pins 1 & 2
                                                               closed

      Connected to hard        N/A              N/A          pins 2 & 3
            drive                                              closed

