
DIAMOND FLOWER, INC.

486-25UCB/486-33UCB

Processor         80486DX
Processor Speed   25/33MHz
Chip Set          UMC
Max. Onboard DRAM 48MB
Cache             32/64/128/256KB
BIOS              AMI
Dimensions        330mm x 220mm
I/O Options       32-bit external memory card
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Auxiliary keyboard         J1        Speaker                    J5

  Reset switch           J2 and J31    Power LED & keylock        J6

  Turbo LED                  J3        External battery           J33

  Turbo switch           J4 and J32    32-bit external            S1
                                       memory card

                        USER CONFIGURABLE SETTINGS

               Function                     Jumper           Position

     NPU enabled                            J12              Closed

      NPU disabled                           J12               Open

     Factory configured - do not            J13             pins 2 & 3
      alter                                                   closed

     Factory configured - do not            J18             pins 1 & 2
      alter                                                   closed

     Factory configured - do not            J19              Closed
      alter

     Factory configured - do not            J20              Closed
      alter

     Factory configured - do not            J21              Closed
      alter

     Factory configured - do not            J22             pins 1 & 2
      alter                                                   closed

     Factory configured - do not            J23             pins 1 & 2
      alter                                                   closed

     Factory configured - do not            J24             pins 1 & 2
      alter                                                   closed

     Factory configured - do not            J25             pins 2 & 3
      alter                                                   closed

     Factory configured - do not            J26             pins 1 & 2
      alter                                                   closed

     Factory configured - do not            J27             pins 1 & 2
      alter                                                   closed

     Factory configured - do not            J28              Closed
      alter

     Battery type select internal           J29             pins 2 & 3
                                                              closed

      Battery type select external           J29             pins 1 & 2
                                                              closed

     Monitor type select color              J30              Closed

      Monitor type select monochrome         J30               Open

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB       (4) 256K x 9       NONE           NONE           NONE

     2MB       (4) 256K x 9   (4) 256K x 9       NONE           NONE

     3MB       (4) 256K x 9   (4) 256K x 9   (4) 256K x 9       NONE

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

     4MB        (4) 1M x 9        NONE           NONE           NONE

     5MB       (4) 256K x 9    (4) 1M x 9        NONE           NONE

     6MB       (4) 256K x 9   (4) 256K x 9    (4) 1M x 9        NONE

     8MB        (4) 1M x 9     (4) 1M x 9        NONE           NONE

     9MB       (4) 256K x 9    (4) 1M x 9     (4) 1M x 9        NONE

     10MB      (4) 256K x 9   (4) 256K x 9    (4) 1M x 9     (4) 1M x 9

     12MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9        NONE

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

     16MB       (4) 4M x 9        NONE           NONE           NONE

     20MB       (4) 1M x 9     (4) 4M x 9        NONE           NONE

     24MB       (4) 1M x 9     (4) 1M x 9     (4) 4M x 9        NONE

     32MB       (4) 4M x 9     (4) 4M x 9        NONE           NONE

     36MB       (4) 1M x 9     (4) 4M x 9     (4) 4M x 9        NONE

     40MB       (4) 1M x 9     (4) 1M x 9     (4) 4M x 9     (4) 4M x 9

     48MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9        NONE

     64MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9     (4) 4M x 9

  Note:Bank 3 is used when a 32-bit external memory card is installed at
  S1.

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     32KB        (4) 8K x 8        NONE       (4) 16K x 4

     64KB        (4) 8K x 8     (4) 8K x 8    (4) 16K x 4

     128KB      (4) 32K x 8        NONE       (4) 16K x 4

     256KB      (4) 32K x 8    (4) 32K x 8    (4) 16K x 4

                 CACHE JUMPER CONFIGURATION

   Size       J8        J9        J10       J11       J12

   32KB      1 & 2     1 & 2     1 & 2      Open     2 & 3

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

  128KB      2 & 3     2 & 3     1 & 2     1 & 2     2 & 3

  256KB      2 & 3     2 & 3     2 & 3     2 & 3     1 & 2

  Note: Pins designated should be in the closed position.

