
ELITEGROUP COMPUTER SYSTEMS, INC.

UA4982

Processor  CX486S/80486SX/SL80486SX/SL80486SX/80486SX2/CX486DX/U5S/
           AM486DX/SL80486DX/80486DX/CX486DX2/AK486DX2/80486DX2/
           SL80486DX2/P24D/AM486DX4/80486DX4
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   UMC
Max.       64MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       Phoenix
Dimensions 254mm x 218mm
I/O        32-bit VESA local bus slots (2), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location      Purpose               Location

  External battery           J2         Reset switch         J90 pins 9 -
                                                                 10

  Turbo LED             J90 pins 2 -    Power LED &         J90 pins 11 -
                             3          keylock                  15

  Green PC connector    J90 pins 4 -    Speaker             J90 pins 17 -
                             5                                   20

  Turbo switch          J90 pins 6 -    32-bit VESA local     SL1 - SL3
                             7          bus slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Flash BIOS voltage select 5v            JP1           pins 1 & 2
                                                              closed

      Flash BIOS voltage select 12v           JP1           pins 2 & 3
                                                              closed

     Keyboard type select external           JP3              Open

      Keyboard type select internal           JP3             Closed

     Factory configured - do not             JP20             N/A
      alter

     Factory configured - do not             JP21             N/A
      alter

     Factory configured - do not             JP22             N/A
      alter

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

     3MB        (1) 256K x     (1) 256K x     (1) 256K x        NONE
                    36             36             36

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

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

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

     5MB       (1) 1M x 36     (1) 256K x        NONE           NONE
                                   36

     6MB       (1) 1M x 36     (1) 256K x     (1) 256K x        NONE
                                   36             36

     7MB       (1) 1M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

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

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

     9MB       (1) 1M x 36    (1) 1M x 36     (1) 256K x        NONE
                                                  36

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

     12MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     13MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

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

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

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

     17MB      (1) 4M x 36     (1) 256K x        NONE           NONE
                                   36

     18MB      (1) 4M x 36     (1) 256K x     (1) 256K x        NONE
                                   36             36

     19MB      (1) 4M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     20MB      (1) 4M x 36    (1) 1M x 36        NONE           NONE

     21MB      (1) 4M x 36    (1) 1M x 36     (1) 256K x        NONE
                                                  36

     22MB      (1) 4M x 36    (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                  36

     24MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     25MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

     28MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

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

     33MB      (1) 4M x 36    (1) 4M x 36     (1) 256K x        NONE
                                                  36

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

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

     37MB      (1) 4M x 36    (1) 4M x 36    (1) 1M x 36    (1) 256K x 36

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

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1        Bank 2          Bank 3

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

     49MB       (1) 4M x 36    (1) 4M x 36   (1) 4M x 36   (1) 256K x 36

     52MB       (1) 4M x 36    (1) 4M x 36   (1) 4M x 36    (1) 1M x 36

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

              CACHE CONFIGURATION

      Size          Bank 0           TAG

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

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

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

                        CACHE JUMPER CONFIGURATION

   Size      JP4     JP5      JP6      JP10     JP11     JP12      JP13

   128KB     1 & 2   1 & 2   Open      Open     Open     Open      Open

   256KB     1 & 2   1 & 2   1 & 2     Open     Open     Open     Closed

   512KB     1 & 2   2 & 3   2 & 3    1 & 2    Closed    Open     Closed

  Note: Pins designated should be in the closed position.

                    CPU TYPE CONFIGURATION

      Type           JP14            JP15            JP16

     CX486S      2 & 3, 4 & 5        2 & 3           Open

    80486SX          Open            2 & 3           Open

   SL80486SX     1 & 2, 3 & 4        2 & 3           Open

    80486SX2         Open            2 & 3           Open

   SL80486SX2    1 & 2, 3 & 4        2 & 3           Open

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

      U5S            Open            2 & 3          3 & 4

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

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

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

         Type                JP17             JP18              JP19

        CX486S           2 & 3, 4 & 5     1 & 2, 3 & 4,     1 & 2, 3 & 4,
                                              5 & 6            5 & 6

        80486SX              Open             2 & 3             Open

       SL80486SX             5 & 6            1 & 2            1 & 2

       80486SX2              Open             2 & 3             Open

      SL80486SX2             5 & 6            1 & 2            1 & 2

        CX486DX          2 & 3, 4 & 5     1 & 2, 3 & 4,     1 & 2, 3 & 4
                                              5 & 6

          U5S                1 & 2            2 & 3            2 & 3

        AM486DX              Open             2 & 3             Open

       SL80486DX             5 & 6            1 & 2            1 & 2

        80486DX              Open             2 & 3             Open

       CX486DX2          2 & 3, 4 & 5     1 & 2, 3 & 4,     1 & 2, 3 & 4
                                              5 & 6

       AM486DX2              Open             2 & 3             Open

       80486DX2              Open             2 & 3             Open

      SL80486DX2             5 & 6            1 & 2            1 & 2

         P24D            3 & 4, 5 & 6     1 & 2, 4 & 5      1 & 2, 4 & 5

       AM486DX4              Open             2 & 3             Open

       80486DX4              5 & 6            1 & 2            1 & 2

  Note: Pins designated should be in the closed position.

                     CPU TYPE CONFIGURATION

    Type        JP100        JP101        JP102        JP103

    Cyrix       Closed       Closed      Closed       Closed

  Intel/AMD      Open         Open        Open         Open

          CPU SPEED CONFIGURATION

   Speed      JP7        JP8        JP9

   25MHz     Closed      Open      Open

   33MHz     Closed     Closed    Closed

   40MHz     Closed     Closed     Open

  50iMHz     Closed      Open      Open

   50MHz      Open       Open     Closed

  66iMHz     Closed     Closed    Closed

  75iMHz     Closed      Open      Open

  100iMHz    Closed     Closed    Closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP24

          2x            pins 2 & 3 closed

          3x                   Open

  CPU SPEED CONFIGURATION (AM486DX4 ONLY)

        Speed                 JP400

          2x                  Closed

          3x                   Open

  VESA WAIT STATE CONFIGURATION

   Wait states         JP26

  0 wait states        Open

  1 wait state        Closed

  BUS SPEED CONFIGURATION

  CPU speed        JP25

   <= 33MHz        Open

   > 33MHz        Closed

