
AQUARIUS SYSTEMS, INC.

MB-4DUPC

Processor  CX486S/80486SX/SL80486SX/CX486DX/AM486DX/UMCU5S/80486DX/
           SL80486DX/CX486DX2/AM486DX2/80486DX2/SL80486DX2/AM486DX4/
           80486DX4/P24D/Pentium Overdrive/CXM1
Processor  20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)/MHz
Speed
Chip Set   UMC
Max.       128MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       Award
Dimensions 260mm x 220mm
I/O        32-bit PCI slots (3), floppy drive interface, game port, green PC
Options    connector, IDE interfaces (2), parallel port, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery           CN1       Power LED & keylock        CN9

  Serial port 2              CN2       Speaker                    CN10

  Floppy drive interface     CN3       IDE interface LED           D9

  Parallel port              CN4       Green PC connector         JP9

  Game interface             CN5       Turbo switch               JP44

  IDE interface 2            CN6       Reset switch               JP45

  IDE interface 1            CN7       Turbo LED                  LED1

  Serial port 1              CN8       32-bit PCI slots         PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

      Flash BIOS voltage select 12v           JP3           pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            JP3           pins 2 & 3
                                                              closed

      CMOS memory normal operation            JP6           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP6           pins 3 & 4
                                                              closed

     Factory configured - do not             JP28             Open
      alter

     Factory configured - do not             JP29             Open
      alter

     Factory configured - do not             JP31             Open
      alter

     Factory configured - do not             JP37             Open
      alter

                            DRAM CONFIGURATION

     Size          Bank 0        Bank 1         Bank 2         Bank 3

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

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

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

     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

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

     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

     16MB       (1) 4M x 36       NONE           NONE           NONE

     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

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

     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

    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         (1) 8K x 8

   256KB (A)      (4) 64K x 8        NONE        (1) 32K x 8

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

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

                        CACHE JUMPER CONFIGURATION

      Size             JP24                JP25               JP26

     128KB             Open             pins 1 & 2            Open
                                          closed

   256KB (A)         pins 1 & 2         pins 1 & 2      pins 1 & 2 closed
                      closed              closed

   256KB (B)         pins 1 & 2         pins 2 & 3            Open
                      closed              closed

     512KB        pins 1 & 2, 3 &       pins 1 & 2      pins 1 & 2, 3 & 4
                     4 closed             closed             closed

                          CPU TYPE CONFIGURATION

      Type          JP10         JP27        JP30       JP32       JP34

     CX486S         Open         Open        Open     1 & 2, 3    1 & 2
                                                        & 4

    80486sx        Closed        Open        Open       Open       Open

   SL80486SX        Open         Open        Open     2 & 3, 4     Open
                                                        & 5

    CX486DX         Open         Open       3 & 4     1 & 2, 3    1 & 2
                                                        & 4

    AM486DX        Closed        Open       3 & 4       Open       Open

    UMC U5S        Closed        Open      1 & 2, 3     Open       Open
                                             & 4

    80486DX        Closed        Open       3 & 4       Open       Open

   SL80486DX        Open         Open       3 & 4     2 & 3, 4     Open
                                                        & 5

    CX486DX2        Open         Open       3 & 4     1 & 2, 3    1 & 2
                                                        & 4

    AM486DX2       Closed        Open       3 & 4       Open       Open

    80486DX2       Closed        Open       3 & 4       Open       Open

   SL80486DX2       Open         Open       3 & 4     2 & 3, 4     Open
                                                        & 5

    AM486DX4       Closed        Open       3 & 4       Open       Open

    80486DX4        Open         Open       3 & 4     2 & 3, 4     Open
                                                        & 5

      P24D          Open         Open       3 & 4     2 & 3, 4     Open
                                                        & 5

      P24T          Open         Open       2 & 3     2 & 3, 4    2 & 3
                                                        & 5

     CX M1          Open        Closed      3 & 4     2 & 3, 4    1 & 2
                                                        & 5

  Note: Pins designated should be in the closed position.

                   CPU TYPE CONFIGURATION (CONT)

     Type         JP35          JP36          JP39          JP39

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

   80486sx        Open          Open          Open          Open

  SL80486SX       Open          1 & 2        1 & 2         1 & 2

   CX486DX        2 & 3         2 & 3        1 & 2         1 & 2

   AM486DX        Open          Open          Open          Open

   UMC U5S        Open          Open         2 & 3         2 & 3

   80486DX        Open          Open          Open          Open

  SL80486DX       Open          1 & 2         Open          Open

   CX486DX2       2 & 3         2 & 3        1 & 2         1 & 2

   AM486DX2       Open          Open          Open          Open

   80486DX2       Open          Open          Open          Open

  SL80486DX2      Open          1 & 2         Open          Open

   AM486DX4       Open          Open          Open          Open

   80486DX4       Open          1 & 2         Open          Open

     P24D         Open          1 & 2        1 & 2         1 & 2

     P24T         1 & 2         1 & 2         Open          Open

    CX M1         2 & 3         1 & 2        1 & 2         1 & 2

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

      Type           JP39          JP40           JP41           JP42

     CX486S         1 & 2          3 & 4          1 & 2         2 & 3

    80486sx          Open          1 & 2          Open          2 & 3

   SL80486SX        1 & 2          3 & 4          Open          2 & 3

    CX486DX         1 & 2          3 & 4          2 & 3      1 & 2, 3 & 4

    AM486DX          Open          1 & 2          Open       1 & 2, 3 & 4

    UMC U5S         2 & 3          1 & 2          3 & 4         2 & 3

    80486DX          Open          1 & 2          Open       1 & 2, 3 & 4

   SL80486DX        1 & 2          3 & 4          Open       1 & 2, 3 & 4

    CX486DX2        1 & 2          3 & 4          2 & 3      1 & 2, 3 & 4

    AM486DX2         Open          1 & 2          Open       1 & 2, 3 & 4

    80486DX2         Open          1 & 2          Open       1 & 2, 3 & 4

   SL80486DX2       1 & 2          3 & 4          Open       1 & 2, 3 & 4

    AM486DX4         Open          1 & 2          Open       1 & 2, 3 & 4

    80486DX4        1 & 2          3 & 4          Open       1 & 2, 3 & 4

      P24D          1 & 2          3 & 4          Open       1 & 2, 3 & 4

      P24T          1 & 2        3 & 4, 5 &       2 & 3      1 & 2, 3 & 4
                                     6

     CX M1          1 & 2          3 & 4          Open       1 & 2, 3 & 4

  Note: Pins designated should be in the closed position.

                    CPU TYPE CONFIGURATION

        Type                 JP22                 JP23

        Cyrix          pins 2 & 3 closed   pins 1 & 2 closed

         AMD           pins 1 & 2 closed   pins 2 & 3 closed

         UMC           pins 1 & 2 closed   pins 2 & 3 closed

        Intel          pins 1 & 2 closed   pins 1 & 2 closed

          CPU SPEED CONFIGURATION

   Speed      JP5        JP7        JP8

   20MHz      Open       Open      Open

   25MHz      Open       Open     Closed

   33MHz     Closed     Closed    Closed

   40MHz      Open      Closed    Closed

  50iMHz      Open       Open     Closed

   50MHz     Closed      Open      Open

  66iMHz     Closed     Closed    Closed

  75iMHz      Open       Open     Closed

  100iMHz    Closed     Closed    Closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP33

          2x            pins 2 & 3 closed

         2.5x           pins 1 & 2 closed

          3x                   Open

             CPU CONFIGURATION

         Type                 JP38

  P24D write through    pins 1 & 2 closed

   P24D write back      pins 2 & 3 closed

      AMD CPU 2x        pins 1 & 2 closed

      AMD CPU 3x              Open

   Other CPU types            Open

                         CPU VOLTAGE CONFIGURATION

  Voltage    JP18    JP19    JP20     JP49      JP50      JP51     jp53

    3.3v     1 & 2   1 & 2   1 & 2    Open      Open      Open     Closed

   3.45v     1 & 2   1 & 2   1 & 2   Closed     Open      Open     Open

    3.6v     1 & 2   1 & 2   1 & 2    Open     Closed     Open     Open

     4v      1 & 2   1 & 2   1 & 2    Open      Open     Closed    Open

     5v      2 & 3   2 & 3   2 & 3    Open      Open      Open     Open

  Note: Pins designated should be in the closed position.

                      DMA CONFIGURATION

         DMA                 JP47                 JP48

        DMA 1          pins 1 & 2 closed   pins 1 & 2 closed

        DMA 3          pins 2 & 3 closed   pins 2 & 3 closed

