
YOUNG MICRO SYSTEMS, INC.

VEGA MB-VS433S

Processor         80486SX/80486DX
Processor Speed   16/20/25/33/50MHz
Chip Set          Symphony
Max. Onboard DRAM 64MB
Cache             64/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Speaker                     P19       Turbo LED                  P22

  Power LED & keylock         P20       Turbo switch               P23

  Reset switch                P21

                            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

     4MB
                (4) 1M x 9
                                  NONE
                                                 NONE
                                                                NONE

     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

     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

     32MB
                (4) 4M x 9
                               (4) 4M x 9
                                                 NONE
                                                                NONE

     48MB
                (4) 4M x 9
                               (4) 4M x 9
                                              (4) 4M x 9
                                                                NONE

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

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

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

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

       CACHE JUMPER CONFIGURATION

   Size
              J2
                       J5
                                 J8

   64KB
             Open
                      Open
                                Open

  256KB
            Closed
                     Closed
                               Closed

