
AMERICAN MEGATRENDS, INC.

SUPER VOYAGER VLB-II (VER. 2)

Processor       80486SX/80487SX/80486DX/P23T/Pentium Overdrive
Processor Speed 20/25/33/50(internal)/50/66(internal)MHz
Chip Set        AMI
Max. Onboard    64MB
DRAM
Cache           64/256KB
BIOS            AMI
Dimensions      330mm x 218mm
I/O Options     PS/2 mouse interface, parallel port, serial ports (2),
                32-bit VESA local bus slots (2), floppy drive interface,
                IDE interface
NPU Options     None

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                 Location

  PS/2 mouse interface         J1       Reset switch              J24

  Parallel port                J4       Speaker                   J29

  Floppy drive interface       J6       Turbo LED                 J30

  IDE interface                J7       Power LED & keylock       J32

  IDE interface LED            J8       Turbo switch              J33

  Serial port 2                J9       32-bit VESA local      SL1 & SL2
                                        bus slots

  Serial port 1               J10

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

     Parallel port IRQ select               J13             pins 1 & 2
      IRQ5                                                    closed

      Parallel port IRQ select               J13             pins 2 & 3
      IRQ7                                                    closed

     Factory configured - do not            J14                N/A
      alter

     Factory configured - do not            J18                N/A
      alter

     Factory configured - do not            J19                N/A
      alter

     Serial port 2 IRQ select               J20             pins 1 & 2
      IRQ3                                                    closed

      Serial port 2 IRQ select               J20             pins 2 & 3
      IRQ4                                                    closed

     Serial port 1 IRQ select               J21             pins 2 & 3
      IRQ4                                                    closed

      Serial port 1 IRQ select               J21             pins 1 & 2
      IRQ3                                                    closed

     PS/2 mouse enabled                     J22             pins 1 & 2
                                                              closed

      PS/2 mouse disabled                    J22             pins 2 & 3
                                                              closed

     Factory configured - do not            J40                N/A
      alter

     Factory configured - do not           SW2/1               Off
      alter

     Monitor type select                   SW2/2               Off
      monochrome

      Monitor type select color             SW2/2               On

                            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

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

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

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

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

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

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

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

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

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

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

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

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

            CACHE CONFIGURATION

     Size          Bank 0        Bank 1

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

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

         CACHE SWITCH CONFIGURATION

  Size     SW1/1    SW1/2    SW1/3    SW1/4

  64KB      Off      Off      Off      Off

  256KB     On       On       On       On

                          CPU TYPE CONFIGURATION

   PQFP type         PGA type          J43         J44           J45

      None            80486SX         2 & 3        N/A           N/A

      None            80487SX        1 & 2, 3     2 & 3          N/A
                                       & 4

      None            80486DX        1 & 2, 3     1 & 2          N/A
                                       & 4

      None           80486DX2        1 & 2, 3     1 & 2          N/A
                                       & 4

      None             P23T          1 & 2, 3     2 & 3          N/A
                                       & 4

      None            Pentium        1 & 2, 3     2 & 3          N/A
                     Overdrive         & 4

    80486SX            None            N/A         N/A          Open

    80486SX           80486SX         2 & 3        N/A         Closed

    80486SX           80487SX        1 & 2, 3     2 & 3        Closed
                                       & 4

    80486SX           80486DX        1 & 2, 3     1 & 2        Closed
                                       & 4

    80486SX            P23T          1 & 2, 3     2 & 3        Closed
                                       & 4

    80486SX           Pentium        1 & 2, 3     2 & 3        Closed
                     Overdrive         & 4

    80486DX            None            N/A         N/A          Open

    80486DX           80487SX        1 & 2, 3     2 & 3        Closed
                                       & 4

    80486DX          80486DX2        1 & 2, 3     1 & 2        Closed
                                       & 4

    80486DX            P23T          1 & 2, 3     2 & 3        Closed
                                       & 4

    80486DX           Pentium        1 & 2, 3     2 & 3        Closed
                     Overdrive         & 4

  Note: Pins designated should be in the closed position.

         BUS SPEED CONFIGURATION

      CPU speed              J23

      <= 33MHz        pins 1 & 2 closed

       > 33MHz        pins 2 & 3 closed

