
ACER, INC.

V12LC

Device Type            Mainboard
Processor              CX M1/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                   Acer
Dimensions             330mm x 218mm
I/O Options            Ethernet 10BaseT connector, floppy drive interface,
                       green PC connector, IDE interfaces (2), parallel
                       port, PS/2 mouse port, serial ports (2), VGA
                       feature connector, VGA port, riser slot

[Image]

                                CONNECTIONS

  Purpose            Location      Purpose                     Location

  VGA port              C1         Power LED & keylock       CN6/pins 1 -
                                                                  5

  Parallel port         C2         Speaker                   CN6/pins 7 -
                                                                  10

  Serial port 2         C3         Turbo LED                  CN6/pins 12
                                                                 & 13

  Serial port 1         C4         Turbo switch               CN6/pins 15
                                                                 - 17

  PS/2 mouse port       C5         Reset switch               CN6/pins 19
                                                                 & 20

  Ethernet              C6         Power LED & keylock       CN7/pins 1 -
  10BaseT                                                         4
  connector

  VGA feature           CN1        Reset switch              CN7/pins 6 &
  connector                                                       7

  IDE interface 1       CN2        IDE interface LED             CN8

  IDE interface 2       CN3        Network/multimedia            CN10
                                   interface

  Floppy drive          CN4        Riser slot                    SL1
  interface

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           CN9          Unidentified
      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 type select flash                JP3        Pins 2 & 3 closed

      BIOS type select EPROM                JP3        Pins 1 & 2 closed

     On board I/O enabled                  JP6        Pins 2 & 3 closed

      On board I/O disabled                 JP6        Pins 1 & 2 closed

     Reset function                       JP15        Pins 2 & 3 closed

      Suspend mode function                JP15        Pins 1 & 2 closed

     Detects hard drive access only       JP19              Open

      Detects hard drives & floppy         JP19             Closed
      drive accesses

     Flash BIOS write protect             JP20        Pins 2 & 3 closed
      disabled

      Flash BIOS write protect             JP20        Pins 1 & 2 closed
      enabled

             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

         SIMM CONFIGURATION (CON'T)

     Size          Bank 0        Bank 1

     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

     Size          Bank 0

     256KB      (8) 32K x 8

            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 TYPE SELECTION

        Type                 JP12

        AM K5         Pins 1 & 2 closed

        CX M1         Pins 2 & 3 closed

        Intel         Pins 1 & 2 closed

               CPU MULTIPLIER SELECTION (CX M1)

     Multiplier              JP14                 JP18

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

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

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

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

               CPU MULTIPLIER SELECTION (AM K5)

     Multiplier              JP14                 JP18

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

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

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

         1x            Pins 2 & 3 closed   Pins 2 & 3 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

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

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

                           CPU VOLTAGE SELECTION

               Voltage                                JP13

                  3.3v                         Pins 1 & 2 closed

                   3.5v                         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

