ACER, INC.

VI12G

Processor        80486SX/80486DX/80486DX2
Processor Speed  25/33/40/50(internal)/50/66(internal)MHz
Chip Set         Acer
Max. Onboard DRAM128MB
Cache            128/256KB
BIOS             Award
Dimensions       254mm x 218mm
I/O Options      32-bit VESA local bus slots (3), green PC connector
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                 Location      Purpose               Location

  External battery          JP6         Break switch         JP12 (pins
                                                               16-18)

  Power LED & keylock    JP12 (pins     Reset switch         JP12 (pins
                            1-5)                               19-20)

  Speaker                JP12 (pins     Chassis fan             JP30
                           7-10)        power

  Green PC connector     JP12 (pins     32-bit VESA          SL1 - SL3
                           12-13)       local bus slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation            JP5              Open

      CMOS memory clear                       JP5           pins 1 & 2
                                                              closed

  »   Factory configured - do not             JP8              Open
      alter

  »   Factory configured - do not             JP10             Open
      alter

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      1MB            NONE        (4) 256K x 9

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

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      5MB         (4) 1M x 9     (4) 256K x 9

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

      16MB        (4) 4M x 9         NONE

      16MB           NONE         (4) 4M x 9

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

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

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

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

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

      64MB        (4) 16M x 9        NONE

      65MB        (4) 16M x 9    (4) 256K x 9

      68MB        (4) 16M x 9     (4) 1M x 9

      80MB        (4) 16M x 9     (4) 4M x 9

     128MB        (4) 16M x 9    (4) 16M x 9

            CACHE CONFIGURATION

     Size          Bank 0        Bank 1

     128KB       (4) 32K x 8      NONE

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

                        CACHE JUMPER CONFIGURATION

      Size               JP1               JP2                 JP3

      128KB           pins 2 & 3        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

      256KB           pins 1 & 2        pins 1 & 2      pins 2 & 3 closed
                       closed             closed

                       CPU SPEED CONFIGURATION

               Speed                              JP11

               25MHz                pins 1 & 2, 3 & 4, 5 & 6 closed

               33MHz                    pins 1 & 2, 3 & 4 closed

               40MHz                    pins 1 & 2, 5 & 6 closed

              50iMHz                pins 1 & 2, 3 & 4, 5 & 6 closed

               50MHz                       pins 1 & 2 closed

              66iMHz                    pins 1 & 2, 3 & 4 closed

         BUS SPEED CONFIGURATION

      CPU speed              JP14

       <=33MHz        pins 1 & 2 closed

       >33MHz         pins 2 & 3 closed