OLIVETTI

M400-60 (BA334)

Processor           80486SX/80487SX/80486DX2
Processor Speed     25/33/50(internal)/66(internal)MHz
Chip Set            Unidentified
Video Chip Set      Unidentified
Maximum Onboard     52MB
Memory
Maximum Video       Unidentified
Memory
Cache               None
BIOS                Unidentified
Dimensions          355mm x 304mm
I/O Options         Floppy drive interface, IDE interface, parallel port,
                    PS/2 mouse port, serial port, feature connector, VGA
                    port, riser slot, console connector
NPU Options         None

[Image]

                               CONNECTIONS

         Function           Label            Function            Label

  PS/2 mouse port            CN1      IDE interface               CN6

  Parallel port              CN2      Floppy drive interface      CN7

  Serial port                CN3      Console connector           CN8

  VGA port                   CN4      Riser slot                  SL1

  Feature connector          CN5

                        USER CONFIGURABLE SETTINGS

                 Setting                     Label           Position

  »   ROM BIOS enabled                        J11             Closed

      ROM BIOS disabled                       J11              Open

  »   Floppy drive oscillator enabled         J13             Closed

      Floppy drive oscillator disabled        J13              Open

  »   CMOS memory normal operation            J15              Open

      CMOS memory clear                       J15             Closed

  »   Hard drives installed 1                 J16             Closed

      Hard drives installed 2                 J16              Open

  »   Serial port enabled                    SW1/1              On

      Serial port disabled                   SW1/1             Off

  »   Factory configured - do not alter      SW1/2              On

  »   Floppy drive write protect             SW1/3              On
      disabled

      Floppy drive write protect             SW1/3             Off
      enabled

  »   Factory configured - do not alter      SW1/4             N/A

  Note: The location of pin 1 on SW1 is unidentified.

                         DRAM CONFIGURATION

    Size         Bank 0       Bank 1        Bank 2        Bank 3

     4MB          4MB          None          None          None

     8MB          4MB       (4) 1M x 9       None          None

    12MB          4MB       (4) 1M x 9    (4) 1M x 9       None

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

    20MB          4MB       (4) 4M x 9       None          None

    24MB          4MB       (4) 1M x 9    (4) 4M x 9       None

    36MB          4MB       (4) 4M x 9    (4) 4M x 9       None

    40MB          4MB       (4) 1M x 9    (4) 4M x 9    (4) 4M x 9

    40MB          4MB       (4) 4M x 9    (4) 4M x 9    (4) 1M x 9

    52MB          4MB       (4) 4M x 9    (4) 4M x 9    (4) 4M x 9

  Note: Bank 0 is factory installed and is not configurable.

                      VIDEO MEMORY CONFIGURATION

  Note: The size and chip type of the video memory is unidentified.

                            CPU TYPE SELECTION

      Setting              J18               J19               J20

      80486SX             Open              Open            Pins 2 & 3
                                                              closed

      80487SX           Pins 2 & 3         Closed           Pins 1 & 2
                         closed                               closed

     80486DX2           Pins 1 & 2         Closed           Pins 1 & 2
                         closed                               closed

           CPU SPEED SELECTION

        Speed                J21

        25MHz         Pins 2 & 3 closed

        33MHz         Pins 1 & 2 closed

       50iMHz         Pins 2 & 3 closed

       66iMHz         Pins 1 & 2 closed

                 RING INDICATOR/INPUT SIGNAL CONFIGURATION

           Setting                      J7                    J8

         FAIL SAFE enabled            Closed                Closed

  »     FAIL SAFE disabled             Open                  Open