PIONEER COMPUTER, INC.

VANTAGE 486WB DX-33/50 DX2-50/66 EISA

Processor         80486DX/80486DX2
Processor Speed   25/33/50/66(internal)MHz
Chip Set          OPTI
Max. Onboard DRAM 256MB
Cache             64/128/256/512KB
BIOS              AMI
Dimensions        365mm x 288mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Speaker                      J1       Turbo LED                  J4

  Power LED & keylock          J2       Reset switch               J5

  Turbo switch                 J3

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper        Position

  »   Factory configured - do not alter         JP4            Open

  »   CPU installed select                      JP5          pins 1 & 2
      80486DX/80486DX2                                        closed

      CPU installed select ODP486SX-66          JP5          pins 2 & 3
                                                              closed

  »   Factory configured - do not alter         JP21           Open

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

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

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

     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

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

     28MB        (4) 1M x 9     (4) 1M x 9    (4) 4M x 9     (4) 1M x 9

     28MB        (4) 1M x 9     (4) 4M x 9    (4) 1M x 9     (4) 1M x 9

     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

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

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

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

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

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

     52MB        (4) 1M x 9     (4) 4M x 9    (4) 4M x 9     (4) 4M x 9

     52MB        (4) 4M x 9     (4) 4M x 9    (4) 4M x 9     (4) 1M x 9

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

     64MB       (4) 16M x 9        NONE          NONE           NONE

     128MB      (4) 16M x 9    (4) 16M x 9       NONE           NONE

     192MB      (4) 16M x 9    (4) 16M x 9    (4) 16M x 9       NONE

     256MB      (4) 16M x 9    (4) 16M x 9    (4) 16M x 9    (4) 16M x 9

                            CACHE CONFIGURATION

     Size          Bank 0        Bank 1       TAG (U19 &      Dirty Bit
                                                 U24            (U25)

     64KB        (4) 8K x 8    (4) 8K x 8    (2) 16K x 1     (1) 8K x 8

     128KB      (4) 32K x 8       NONE       (2) 16K x 1     (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8   (2) 16K x 1     (1) 32K x 8

     512KB      (4) 128K x 8      NONE       (2) 64K x 1     (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

  Size     JP3     JP8       JP9      JP10      JP11     JP12      JP13

   0KB     Open    Open     Open      Open      Open     Open      Open

  64KB     2 &     Open     Open      Open      Open     Open      Open
            3

  128KB    2 &     Open     Open      Closed   Closed    Open      Open
            3

  256KB    2 &     Open     Closed    Closed   Closed    Closed    Open
            3

  512KB    1 &    Closed    Closed    Closed   Closed    Closed   Closed
            2

  Note: Pins designated should be in the closed position.