
UNIDENTIFIED

PCI/ISA UD486GRN

Processor  CX486SX/80486SX/SL80486SX/SL80486SX2/CX486DX/AM486DX/UMCU5S/
           SL80486DX/CX486DX2/AM486DX2/SL80486DX2/AM486DX4/80486DX4
Processor  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       Unidentified
Dimensions 220mm x 220mm
I/O        32-bit PCI slots (3), green PC connector, IDE interfaces (2)
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Speaker                    CN1       Turbo switch               JP29

  Power LED & keylock        CN2       Turbo LED                  JP30

  IDE interface              JH1       Reset switch               JP31

  IDE interface              JH2       IDE interface LED          JP32

  Green PC connector         JP26      32-bit PCI slots         PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CMOS memory normal operation             JC             Closed

      CMOS memory clear                        JC              Open

      IDE interface enabled                    JP2             Open

      IDE interface disabled                   JP2            Closed

     Port address fixed                       JP3            Closed

      Port address relocatable                 JP3             Open

     Factory configured - do not alter       JP10             Open

     Factory configured - do not alter       JP15           pins 1 & 2
                                                              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) 1M x 36       NONE           NONE           NONE

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

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

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

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

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

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

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

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

     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           TAG

     128KB        (4) 32K x 8     (1) 8K x 8

     256KB        (4) 64K x 8    (1) 32K x 8

     512KB        (4) 128K x 8   (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

     Size          JP22        JP23 pins 1   JP23 pins 3        JP25
                                  & 2            & 4

    128KB          Open          Closed         Open          pins 1 & 2
                                                               closed

    256KB          Open          Closed        Closed         pins 2 & 3
                                                               closed

    512KB         Closed         Closed        Closed         pins 2 & 3
                                                               closed

                          CPU TYPE CONFIGURATION

      Type            JP7        JP11       JP12       JP13        JP14

     CX486SX         Open        1 & 2      Open       2 & 3     1 & 2, 3
                                                                   & 4

     80486SX        Closed       Open       Open       2 & 3       Open

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

   SL80486SX2       Closed       Open       Open       2 & 3     2 & 3, 4
                                                                   & 5

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

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

     UMCU5S         Closed       Open       1 & 2      2 & 3       Open

    SL80486DX       Closed       Open       3 & 4     1 & 2, 3   2 & 3, 4
                                                        & 4        & 5

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

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

   SL80486DX2       Closed       Open       3 & 4     1 & 2, 3   2 & 3, 4
                                                        & 4        & 5

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

    80486DX4        Closed       Open       3 & 4     1 & 2, 3   2 & 3, 4
                                                        & 4        & 5

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

     Type        JP16      JP17      JP19      JP20      JP21      JP24

   CX486SX      2 & 3     1 & 2     2 & 3     1 & 2     2 & 3     2 & 3

   80486SX      1 & 2     1 & 2      Open      Open      Open      Open

  SL80486SX     1 & 2     1 & 2      Open     1 & 2     1 & 2      Open

  SL80486SX2    1 & 2     1 & 2      Open     1 & 2     1 & 2      Open

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

   AM486DX      1 & 2     1 & 2      Open      Open      Open      Open

    UMCU5S      1 & 2     2 & 3      Open     2 & 3      Open     3 & 4

  SL80486DX     1 & 2     1 & 2      Open     1 & 2     1 & 2      Open

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

   AM486DX2     1 & 2     1 & 2      Open      Open      Open      Open

  SL80486DX2    1 & 2     1 & 2      Open     1 & 2     1 & 2      Open

   AM486DX4     1 & 2     1 & 2      Open      Open      Open      Open

   80486DX4     1 & 2     1 & 2      Open     1 & 2     1 & 2      Open

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

       Speed        JP18 pins 1 & 2    JP18 pins 3 & 4    JP18 pins 5 & 6

       25MHz              Open               Open              Open

       33MHz             Closed             Closed             Open

       40MHz              Open              Closed             Open

      50iMHz              Open               Open              Open

       50MHz             Closed              Open              Open

      66iMHz             Closed             Closed             Open

      75iMHz              Open               Open              Open

      100iMHz            Closed             Closed             Open

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP9

          2x                  Closed

          3x                   Open

                          KEYBOARD CONFIGURATION

   Setting         JP1        JP4     JP5      JP6      JP27       JP28

   Internal     7 & 8, 9 &   1 & 2   1 & 2    1 & 2     2 & 3     1 & 2
                   10

   External     1 & 3, 2 &   2 & 3   2 & 3    2 & 3     1 & 2     2 & 3
                4, 5 & 7,
                  6 & 8

  Note: Pins designated should be in the closed position.

                       MISCELLANEOUS TECHNICAL NOTE

            Note: The location of pin 1 is unidentified. Jumpers are
            shown for location purposes only. The actual location may
            vary.

