
ACER

V50LAN

Device Type            Mainboard
Processor              CX 6X86/AM K5/Pentium
Processor Speed        75/90/100/120/133/150/166MHz
Chip Set               Intel
Video Chip Set         ATI
Maximum Onboard Memory 128MB (EDO supported)
Maximum Video Memory   2MB
Cache                  256KB
BIOS                   Unidentified
Dimensions             330mm x 218mm
I/O Options (backplane)CD-ROM interface, 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,
                       IR connector, line in, wavetable connector, audio
                       in - CD-ROM

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                 Location

  PS/2 mouse                C2        IDE interface 1           CN8
  interface

  Serial port 1             C3        IDE interface 2           CN9

  Serial port 2             C4        Floppy drive              CN10
                                      interface

  Parallel port             C5        Power LED &          CN17/pins 1-5
                                      keylock

  VGA port                  C6        Speaker              CN17/pins 7-10

  Audio connector           CN1       Green PC LED         CN17/pins 12 &
                                                                 13

  ATI media connector       CN2       Turbo switch            CN17/pins
                                                               15-17

  Audio in - CD-ROM         CN3       Reset switch         CN17/pins 19 &
                                                                 20

  Wavetable connector       CN4       Hard disk LED             CN20
                                      connector

  Line in - internal        CN5       Fan connector             CN21

  Fax/voice modem           CN6       Riser slot                SL1
  line in

  VGA/Ethernet              CN7
  feature connector

                        USER CONFIGURABLE SETTINGS

            Function                   Label              Position

     Factory configured - do           CN12              Reserved
      not alter

     SMM switch enabled                CN16          Pins 1 & 2 closed

      Reset switch enabled              CN16          Pins 2 & 3 closed

     Factory configured - do      CN16/pins 3 & 4        Reserved
      not alter

     BIOS type select Acer             JP2           Pins 1 & 2 closed

      BIOS type select OEM              JP2           Pins 2 & 3 closed

     Password disabled                 JP3           Pins 2 & 3 closed

      Password enabled                  JP3           Pins 1 & 2 closed

     Flash ROM boot block              JP4           Pins 2 & 3 closed
      disabled

      Flash ROM boot block              JP4           Pins 1 & 2 closed
      enabled

     Factory configured - do           JP13              Reserved
      not alter

              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

                      BIOS ROM TYPE SELECTION

             Function                             JP5

   Flash ROM boot block disabled          Pins 3 & 4 closed

   Flash ROM boot block enabled            Pins 2 & 3 closed

             Reserved                      Pins 1 & 2 closed

               CACHE CONFIGURATION

  Note: The cache configuration is unidentified.

                        CACHE JUMPER CONFIGURATION

              Size                        JP7                 JP8

      256KB asynchronous or       Pins 1 & 2 closed   Pins 1 & 2 closed
       pipeline burst SRAM

             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 (PENTIUM)

     CPU speed        Clock speed          JP6                 JP9

       75MHz             50MHz          Pins 1 & 4      Pins 1 & 2 closed
                                          closed

       90MHz             60MHz          Pins 2 & 5      Pins 1 & 2 closed
                                          closed

      100MHz             50MHz          Pins 1 & 4      Pins 2 & 3 closed
                                          closed

      100MHz             66MHz          Pins 3 & 6      Pins 1 & 2 closed
                                          closed

      120MHz             60MHz          Pins 2 & 5      Pins 2 & 3 closed
                                          closed

      133MHz             66MHz          Pins 3 & 6      Pins 2 & 3 closed
                                          closed

      150MHz             60MHz          Pins 2 & 5      Pins 1 & 2 closed
                                          closed

      166MHz             66MHz          Pins 3 & 6      Pins 1 & 2 closed
                                          closed

                 CPU MULTIPLIER SELECTION (INTEL)

       Multiplier                JP10                 JP11

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

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

          2.5x             Pins 2 & 3 closed   Pins 1 & 2 closed

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

                 CPU MULTIPLIER SELECTION (AM K5)

       Multiplier                JP10                 JP11

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

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

                CPU MULTIPLIER SELECTION (CX 6X86)

       Multiplier                JP10                 JP11

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

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

           CPU VOLTAGE SELECTION

       Voltage                JP12

        3.38v          Pins 1 & 2 closed

        3.52v           Pins 2 & 3 closed

