ACER, INC.

V12LC-2

Device Type              Mainboard
Processor                CX 6X86/AM K5/Pentium
Processor Speed          75/90/100/120/133/150MHz
Chip Set                 Unidentified
Video Chip Set           Cirrus Logic
Maximum Onboard Memory   128MB
Maximum Video Memory     2MB
Cache                    256KB
BIOS                     Unidentified
Dimensions               330mm x 218mm
I/O Options (backplane)  bus mouse port, Ethernet 10BaseT connector, floppy
                         drive interface, green PC connector, IDE
                         interfaces (2), parallel port, PS/2 mouse
                         interface, PS/2 keyboard interface, serial ports
                         (2), VGA feature connector, VGA port, riser slot

[Image]

                                CONNECTIONS

  Purpose             Location     Purpose                     Location

  VGA feature           CN1        IDE interface LED             CN8
  connector

  IDE interface 1       CN2        Network/multimedia            CN10
                                   interface

  IDE interface 2       CN3        VGA port                      CN27

  Floppy drive          CN4        Parallel port                 CN28
  interface

  Power LED &       CN6/pins 1 -   Serial port 2                 CN29
  keylock                5

  Speaker           CN6/pins 7 -   Serial port 1                 CN30
                         10

  Turbo LED          CN6/pins 12   PS/2 mouse interface          CN31
                        & 13

  Turbo switch       CN6/pins 15   PS/2 keyboard interface       CN32
                        - 17

  Reset switch       CN6/pins 19   RJ-45 phone jack              CN33
                        & 20

  Power LED &       CN7/pins 1 -   Riser slot                    SL1
  keylock                4

  Reset switch      CN7/pins 6 &
                         7

                        USER CONFIGURABLE SETTINGS

             Function                  Label             Position

  »   Factory configured - do not       CN9              Reserved
      alter

  »   BIOS type select Acer             JP1          Pins 1 & 2 closed

      BIOS type select OEM              JP1          Pins 2 & 3 closed

  »   Password disabled                 JP2          Pins 2 & 3 closed

      Password enabled                  JP2          Pins 1 & 2 closed

  »   BIOS ROM type select flash        JP3          Pins 2 & 3 closed
      ROM

      BIOS ROM type select EPROM        JP3          Pins 1 & 2 closed

  »   Onboard SMC665/669 enabled        JP6          Pins 2 & 3 closed

      Onboard SMC665/669 disabled       JP6          Pins 1 & 2 closed

  »   CPU type select P54C or AMD       JP12         Pins 1 & 2 closed
      K5

      CPU type select Cyrix M1          JP12         Pins 2 & 3 closed

  »   Reset function                    JP15         Pins 2 & 3 closed

      Suspend mode function             JP15         Pins 1 & 2 closed

  »   Factory configured - do not       JP19               Open
      alter

  »   Flash ROM control select          JP20         Pins 2 & 3 closed
      normal work

      Flash ROM control select          JP20         Pins 1 & 2 closed
      boot block

              SIMM CONFIGURATION

     Size         Bank 0           Bank 1

     8MB        (2) 1M x 36         None

     16MB       (2) 2M x 36         None

     16MB       (2) 1M x 36     (2) 1M x 36

     24MB       (2) 2M x 36     (2) 1M x 36

     32MB       (2) 4M x 36         None

     32MB       (2) 2M x 36     (2) 2M x 36

     40MB       (2) 4M x 36     (2) 1M x 36

     48MB       (2) 4M x 36     (2) 2M x 36

     64MB       (2) 8M x 36         None

     64MB       (2) 4M x 36     (2) 4M x 36

     72MB       (2) 8M x 36     (2) 1M x 36

     80MB       (2) 8M x 36     (2) 2M x 36

     96MB       (2) 8M x 36     (2) 4M x 36

    128MB       (2) 8M x 36     (2) 8M x 36

             CACHE CONFIGURATION

  Note: Cache configuration is unidentified.

            VIDEO MEMORY CONFIGURATION

      Size            Bank 0           Bank 1

       1MB         (2) 256K x 16        None

       2MB         (2) 256K x 16    (2) 256K x 16

            CPU SPEED SELECTION

        Speed                  JP8

        75MHz           Pins 1 & 4 closed

        90MHz           Pins 2 & 5 closed

        100MHz          Pins 3 & 6 closed

        120MHz          Pins 2 & 5 closed

        133MHz          Pins 3 & 6 closed

        150MHz          Pins 2 & 5 closed

               CPU MULTIPLIER SELECTION (INTEL)

     Multiplier              JP14                 JP18

       » 1.5x          Pins 1 & 2 closed    Pins 1 & 2 closed

         2x            Pins 2 & 3 closed    Pins 1 & 2 closed

        2.5x           Pins 2 & 3 closed    Pins 2 & 3 closed

         3x            Pins 1 & 2 closed    Pins 2 & 3 closed

        CPU MULTIPLIER SELECTION (CX 6X86 & AM K5)

     Multiplier              JP14                 JP18

   » 1x, 1.5x, 3x      Pins 1 & 2 closed    Pins 1 & 2 closed

         1x            Pins 2 & 3 closed    Pins 1 & 2 closed

    1x, 1.5x, 3x       Pins 1 & 2 closed    Pins 2 & 3 closed

         1x            Pins 2 & 3 closed    Pins 2 & 3 closed

          CPU VOLTAGE SELECTION

       Voltage               JP13

      » 3.3825v       Pins 1 & 2 closed

       3.5250v        Pins 2 & 3 closed

                      CN1 CONNECTOR SELECTION

        Setting                 JP16                  JP17

  » Feature connector    Pins 1 & 2 closed      Pins 1 & 2 closed

     I2C connector       Pins 2 & 3 closed      Pins 2 & 3 closed