
YOUNG MICRO SYTEMS, INC.

VEGA 3486S-VL

Processor             80386DX/80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed       16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set              Symphony
Max. Onboard DRAM     64MB
Cache                 64/256/1024KB
BIOS                  AMI
Dimensions            330mm x 218mm
I/O Options           32-bit VESA local bus slot
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  Speaker                     J1        Turbo LED                  J4

  Power LED & keylock         J2        Turbo switch               J5

  Reset                       J3        32-bit VESA local bus      S1
                                        slot

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not alter        JP3           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP12           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP27           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP34            Closed

                            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

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

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

     7MB        (4) 256K x 9   (4) 256K x 9   (4) 256K x 9   (4) 1M x 9

     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

     13MB       (4) 256K x 9   (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

     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

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

     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

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

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

      CACHE CONFIGURATION

      Size          Bank 0

      64KB        (8) 8K x 8

     256KB        (8) 32K x 8

      1MB        (8) 128K x 8

                CACHE JUMPER CONFIGURATION

   Size      JP7       JP8       JP9      JP10      JP11

   64KB     1 & 2     1 & 2     1 & 2     1 & 2    1 & 2

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

   1MB      2 & 3     2 & 3     2 & 3     2 & 3    2 & 3

  Note:Pins designated should be in the closed position

                          CPU TYPE CONFIGURATION

     Type        JP13         JP14         JP15        JP16       JP17

   80386DX       Open        Closed       1 & 2       1 & 2       1 & 2

   80486SX       1 & 2        Open        2 & 3       2 & 3       2 & 3

   80487SX       2 & 3        Open        2 & 3       2 & 3       2 & 3

   80486DX       1 & 2        Open        2 & 3       2 & 3       2 & 3

  80486DX-50     1 & 2        Open        2 & 3       2 & 3       2 & 3

  Note:Pins designated should be in the closed position

                      CPU TYPE CONFIGURATION (CONT)

     Type         JP18         JP19        JP26        JP28        JP29

   80386DX       Closed        Open        Open        Open       1 & 2

   80486SX        Open         Open        Open        Open       2 & 3

   80487SX        Open         Open       2 & 3       Closed      2 & 3

   80486DX        Open         Open       1 & 2       Closed      2 & 3

  80486DX-50      Open        Closed      1 & 2       Closed      2 & 3

  Note:Pins designated should be in the closed position

                      CPU TYPE CONFIGURATION (CONT)

     Type       JP30     JP31     JP32       JP71       JP76       JP77

   80386DX     1 & 2    1 & 2    Closed     Closed      Open      Closed

   80486SX     2 & 3    2 & 3     Open       Open      Closed      Open

   80487SX     2 & 3    2 & 3     Open       Open      Closed      Open

   80486DX     2 & 3    2 & 3     Open       Open      Closed      Open

  80486DX-50   2 & 3    2 & 3     Open       Open      Closed      Open

  Note:Pins designated should be in the closed position

                          CPU SPEED CONFIGURATION

        Speed               JP4              JP5               JP33

     16/20/25MHz           Open             Closed             Open

        33MHz              Open             Closed          pins 1 & 2
                                                              closed

        33MHz             Closed             Open           pins 2 & 3
                                                              closed

      50/66MHz             Open              Open           pins 2 & 3
                                                              closed

               I/O WAIT STATE CONFIGURATION

  Wait states       JP6            JP20          JP35

       0           Closed          Open         Closed

       1            Open          Closed         Open

