
DIAMOND FLOWER, INC.

P486-ICA (REV. A)

Processor         80486SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed   25/33/50(internal)/66(internal)MHz
Chip Set          Intel
Max. Onboard DRAM 128MB
Cache             128/256KB
BIOS              Phoenix
Dimensions        330mm x 218mm
I/O Options       32-bit PCI bus slots (3), floppy drive interface, IDE
                  interface, parallel port, PS/2 mouse interface, serial
                  ports (2)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  PCI 3.3 volt power         J3        IDE interface LED         J31
  connector

  External battery           J4        Reset switch              J32

  PS/2 mouse port            J5        Speaker                   J33

  Serial port 1             J14        Power LED & keylock       J34

  Serial port 2             J15        Chassis fan power         J36

  Parallel port             J20        Turbo LED                 J40

  Floppy drive              J21        32-bit PCI bus         S1, S2 & S3
  interface                            slots

  IDE interface             J22

                        USER CONFIGURABLE SETTINGS

                Function                      Jumper         Position

     Battery type select 3.6 volt              J7           pins 1 & 2
                                                              closed

      Battery type select 4.5 volt              J7           pins 2 & 3
                                                              closed

     On board I/O controller enabled          J23           pins 2 & 3
                                                              closed

      On board I/O controller disabled         J23           pins 1 & 2
                                                              closed

     Memory parity enabled                    J24           pins 1 & 2
                                                              closed

      Memory parity disabled                   J24           pins 2 & 3
                                                              closed

     Boot block disabled                      J25           pins 1 & 2
                                                              closed

      Boot block enabled                       J25           pins 2 & 3
                                                              closed

     IDE DMA disabled                         J26           pins 1 & 2
                                                              closed

      IDE DMA enabled (WD Caviar/Conner        J26           pins 2 & 3
      CP30254 drives only)                                    closed

     CMOS memory normal operation             J27             Open

      CMOS memory clear                        J27            Closed

     Factory configured - do not alter        J28             Open

     DMA Channel 1 enabled                 J29 & J30        pins 2 & 3
                                                              closed

      DMA Channel 1 disabled                J29 & J30        pins 1 & 2
                                                              closed

     L1 write through & L2 write back      J37 & J38        pins 1 & 2
      cache enabled                                           closed

      L1 write back & L1 write through      J37 & J38        pins 2 & 3
      cache enabled                                           closed

     CPU speed select 33MHz                   J39           pins 2 & 3
                                                              closed

      CPU speed select 25MHz                   J39           pins 1 & 2
                                                              closed

     IRQ14 enabled (on board IDE              J42           pins 1 & 2
      controller installed)                                   closed

      IRQ15 enabled ( 2 IDE controllers        J42           pins 2 & 3
      installed)                                              closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

     6MB         (1) 256K x    (1) 256K x     (1) 512K x    (1) 512K x 36
                    36             36             36

     6MB         (1) 512K x    (1) 512K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     8MB         (1) 512K x    (1) 512K x     (1) 512K x    (1) 512K x 36
                    36             36             36

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

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

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

     12MB        (1) 512K x    (1) 512K x    (1) 1M x 36     (1) 1M x 36
                    36             36

     12MB       (1) 1M x 36   (1) 1M x 36     (1) 512K x    (1) 512K x 36
                                                  36

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

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

     18MB        (1) 256K x    (1) 256K x    (1) 2M x 36     (1) 2M x 36
                    36             36

     18MB       (1) 2M x 36   (1) 2M x 36     (1) 256K x    (1) 256K x 36
                                                  36

     20MB        (1) 512K x    (1) 512K x    (1) 2M x 36     (1) 2M x 36
                    36             36

     20MB       (1) 2M x 36   (1) 2M x 36     (1) 512K x    (1) 512K x 36
                                                  36

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

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

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

     32MB       (1) 2M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

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

     34MB        (1) 256K x     (1) 256K x    (1) 4M x 36    (1) 4M x 36
                     36            36

     34MB       (1) 4M x 36    (1) 4M x 36     (1) 256K x   (1) 256K x 36
                                                  36

     36MB        (1) 512K x     (1) 512K x    (1) 4M x 36    (1) 4M x 36
                     36            36

     36MB       (1) 4M x 36    (1) 4M x 36     (1) 512K x   (1) 512K x 36
                                                  36

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

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

     48MB       (1) 4M x 36    (1) 4M x 36    (1) 2M x 36    (1) 2M x 36

     48MB       (1) 2M x 36    (1) 2M x 36    (1) 4M x 36    (1) 4M x 36

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

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

     66MB        (1) 256K x     (1) 256K x    (1) 8M x 36    (1) 8M x 36
                     36            36

     66MB       (1) 8M x 36    (1) 8M x 36     (1) 256K x   (1) 256K x 36
                                                  36

     68MB        (1) 512K x     (1) 512K x    (1) 8M x 36    (1) 8M x 36
                     36            36

     68MB       (1) 8M x 36    (1) 8M x 36     (1) 512K x   (1) 512K x 36
                                                  36

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

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

     80MB       (1) 2M x 36    (1) 2M x 36    (1) 8M x 36    (1) 8M x 36

     80MB       (1) 8M x 36    (1) 8M x 36    (1) 2M x 36    (1) 2M x 36

     96MB       (1) 4M x 36    (1) 4M x 36    (1) 8M x 36    (1) 8M x 36

     96MB       (1) 8M x 36    (1) 8M x 36    (1) 4M x 36    (1) 4M x 36

    128MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     128KB        (4) 32K x 8        NONE        (2) 32K x 8

     256KB        (4) 32K x 8     (4) 32K x 8    (2) 32K x 8

  Note: Bank 0 is factory installed and is not configurable.

                  CACHE JUMPER CONFIGURATION

        Size              J41/ 1 & 2           J41/ 3 & 4

        128KB                Open          pins 3 & 4 closed

        256KB          pins 1 & 2 closed          Open

                   CPU VOLTAGE SELECT

          Voltage                       J35

            3.3              pins 1 & 3, 2 & 4 closed

             5               pins 3 & 5, 4 & 6 closed

          PCI IRQ CONFIGURATION

         IRQ                  J6

          9           pins 1 & 2 closed

         10           pins 3 & 4 closed

         11           pins 5 & 6 closed

         14           pins 7 & 8 closed

