
YOUNG MICRO SYTEMS, INC.

VEGA 486F-VL

Processor              80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed        16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set               Vega
Max. Onboard DRAM      32MB
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 switch                J5

  Power LED & keylock         J2       External battery           JP1

  Reset switch                J3       32-bit VESA local bus       S1
                                       slot

  Turbo LED                   J4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color                JP2            Closed

      Monitor type select monochrome           JP2             Open

     CMOS memory normal operation             JP3           pins 1 & 2
                                                              closed

      CMOS memory clear                        JP3           pins 2 & 3
                                                              closed

     Factory configured - do not alter        JP4           pins 1 & 2
                                                              closed

     I/O wait states select zero              JP5             Open

      I/O wait states select one               JP5            Closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 1M x 9         NONE

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      32MB        (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      JP11     JP12      JP13      JP14     JP15     JP16     JP17

  64KB      Open     Open      Open      Open     1 & 2   Closed     1 &
                                                                     2, 2
                                                                     & 3

  256KB     Open     Open     Closed    Closed    2 & 3    Open      1 &
                                                                     2, 2
                                                                     & 3

   1MB     Closed   Closed    Closed    Closed    2 & 3    Open     2 & 3

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type                JP8               JP9               JP10

      80486SX             Open              Open            pins 2 & 3
                                                              closed

     ODP486SX             Open              Open            pins 2 & 3
                                                              closed

      80487SX           pins 2 & 3         Closed           pins 1 & 2
                         closed                               closed

      80486DX           pins 1 & 2         Closed           pins 1 & 2
                         closed                               closed

     80486DX2           pins 1 & 2         Closed           pins 1 & 2
                         closed                               closed

               CPU SPEED CONFIGURATION

      Speed              JP6               JP7

  16/20/25/33MHz        open             closed

      40MHz            closed             open

      50MHz            closed            closed

