
YOUNG MICRO SYSTEMS, INC.

VEGA 3486AIO-2VL

Processor     80386DX/80486SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive
Processor     25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set      Symphony
Max. Onboard  64MB
DRAM
Cache         64/256/1024KB
BIOS          AMI
Dimensions    330mm x 218mm
I/O Options   32-bit VESA local bus slots (2), floppy drive interface,
              game port, IDE interface, parallel port, serial ports (2)
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Speaker                    CN1       Game interface             J19

  Power LED & keylock        CN2       Parallel port              J20

  Reset switch               CN3       IDE interface              J21

  Turbo LED                  CN4       Serial port 1              J22

  Turbo switch               CN5       Serial port 2              J23

  External battery            J2       32-bit VESA Local bus   SL1 & SL2
                                       slots

  Floppy drive               J18
  interface

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CMOS memory normal operation             J3           pins 1 & 2
                                                              closed

      CMOS memory clear                        J3           pins 2 & 3
                                                              closed

     IDE interface enabled                   JA1             Closed

      IDE interface disabled                  JA1              Open

     Battery type select internal            JP2             Closed

      Battery type select external            JP2              Open

     BIOS type select Flash                  JP3           pins 1 & 2
                                                              closed

      BIOS type select normal                 JP3           pins 2 & 3
                                                              closed

     Cache wait state select 1 wait          JP11             Open
      state

      Cache wait state select 0 wait          JP11            Closed
      states

     VESA sample select T2                   JP12             Open

      VESA sample select T3                   JP12            Closed

     Cache burst select <=33MHz              JP13             Open

      Cache burst select >33MHz               JP13            Closed

     Factory configured - do not             JP32          pins 2 & 3
      alter                                                   closed

     Parallel port IRQ select IRQ5            W7           pins 1 & 2
                                                              closed

      Parallel port IRQ select IRQ7            W7           pins 2 & 3
                                                              closed

     Floppy drive interface enabled          W12           pins 1 & 2
                                                              closed

      Floppy drive interface disabled         W12           pins 2 & 3
                                                              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) 256K x 9    (4) 1M x 9

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

      16MB        (4) 4M x 9         NONE

      17MB        (4) 256K x 9    (4) 4M x 9

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

      64MB        (4) 16M x 9        NONE

      CACHE CONFIGURATION

      Size          Bank 0

      64KB        (8) 8K x 8

     256KB        (8) 32K x 8

      1MB        (8) 128K x 8

                 CACHE JUMPER CONFIGURATION

   Size      JP27      JP28       JP29      JP30      JP31

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

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

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

  Note: Pins designated should be in the closed position.

                               CPU TYPE CONFIGURATION

  Type     JP6     JP9      JP10     JP17    JP18   JP33   JP34   JP35   JP36  JP37

  80386   Open     Open    Closed   Closed    1 &   1 &    1 &    2 &    2 &    2 &
                                              2      2      2      3      3     3

  80486   Closed  Closed    Open     Open     2 &   2 &    2 &    1 &    1 &    1 &
                                              3      3      3      2      2     2

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type               JP24              JP25               JP26

      80486SX           pins 2 & 3          Open               Open
                         closed

      80486DX           pins 1 & 2         Closed             Closed
                         closed

   CPU SPEED CONFIGURATION

   Type      JP4       JP5

  25MHz      Open     Closed

  33MHz     Closed     Open

  40MHz      Open      Open

  50MHz      Open     Closed

  50iMHz     Open     Closed

  66iMHz    Closed     Open

                 SERIAL PORT 1 CONFIGURATION

       Port 1                 W1                   W2

     COM1 (3F8)        pins 1 & 2 closed   pins 1 & 2 closed

     COM2 (2F8)        pins 1 & 2 closed   pins 2 & 3 closed

     COM3 (2E8)        pins 2 & 3 closed   pins 1 & 2 closed

      Disabled         pins 2 & 3 closed   pins 2 & 3 closed

                 SERIAL PORT 2 CONFIGURATION

       Port 2                 W3                   W5

     COM1 (3F8)        pins 1 & 2 closed   pins 1 & 2 closed

     COM2 (2F8)        pins 1 & 2 closed   pins 2 & 3 closed

     COM4 (2E8)        pins 2 & 3 closed   pins 1 & 2 closed

      Disabled         pins 2 & 3 closed   pins 2 & 3 closed

  SERIAL PORT 1 INTERRUPT CONFIGURATION

       Port 1                 W11

        IRQ3           pins 1 & 2 closed

        IRQ4           pins 2 & 3 closed

  SERIAL PORT 2 INTERRUPT CONFIGURATION

       Port 2                 W8

        IRQ4           pins 1 & 2 closed

        IRQ3           pins 2 & 3 closed

                 PARALLEL PORT CONFIGURATION

       Port 1                 W6                   W9

     LPT1 (378)        pins 1 & 2 closed   pins 1 & 2 closed

     LPT2 (278)        pins 1 & 2 closed   pins 2 & 3 closed

     LPT3 (3BC)        pins 2 & 3 closed   pins 1 & 2 closed

      Disabled         pins 2 & 3 closed   pins 2 & 3 closed

                 IDE INTERFACE CONFIGURATION

       Setting                W4                  W10

       Enabled              Closed         pins 1 & 2 closed

      Disabled               Open          pins 2 & 3 closed

  BUS SPEED CONFIGURATION

  CPU speed        JP15

   <=33MHz        Closed

   > 33MHz         Open

  VESA WAIT STATE CONFIGURATION

   Wait states         JP16

  0 wait states       Closed

  1 wait state         Open

                     PHASE CONFIGURATION

       Setting               JP8                  JP14

         1X            pins 2 & 3 closed         Closed

         2X            pins 1 & 2 closed          Open

                   VESA PHASE CONFIGURATION

       Setting               JP7                  JP7A

         1X            pins 2 & 3 closed   pins 2 & 3 closed

         2X            pins 1 & 2 closed   pins 1 & 2 closed

