
OLIVETTI

M6-520/540/560 (BA2015, 202X, 209X)

Processor          80486SX/80487SX/80486DX/80486DX2
Processor Speed    25/33/50(internal)/66(internal)MHz
Chip Set           Unidentified
Maximum Onboard    64MB
Memory
Cache              256KB
BIOS               Unidentified
Dimensions         254mm x 218mm
I/O Options        Floppy drive interface, IDE interface, SCSI connector,
                   parallel port, PS/2 mouse port, serial ports (2), VGA
                   port, cache slot, riser slot
NPU Options        None

[Image]

                                CONNECTIONS

        Function           Label             Function            Label

  Serial port 1             CN1       Floppy drive                CN8
                                      interface

  Serial port 2             CN2       SCSI terminator              J1

  VGA port                  CN3       SCSI terminator              J2

  Parallel port             CN4       Chassis fan power            J3

  PS/2 mouse port           CN5       Speaker                      J4

  SCSI connector            CN6       Cache slot                  SL1

  IDE interface             CN7       Riser slot                  SL2

                        USER CONFIGURABLE SETTINGS

                 Setting                     Label           Position

      SCSI terminators enabled                P5           Pins 1 & 2
                                                              closed

       SCSI terminators disabled               P5           Pins 2 & 3
                                                              closed

      Password disabled                       P7           Pins 1 & 2
                                                              closed

       Password enabled                        P7           Pins 2 & 3
                                                              closed

      Floppy drives not write protected       P8              Open

       Floppy drives write protected           P8             Closed

      Serial ports and parallel port          P9              Open
       enabled

       Serial ports and parallel port          P9             Closed
       disabled

      Serial port bootstrap enabled          P11              Open

       Serial port bootstrap disabled         P11             Closed

      Floppy drive bootstrap enabled         P12             Closed

       Floppy drive bootstrap disabled        P12              Open

      Factory configured - do not alter     SW1/5             Off

      Factory configured - do not alter     SW1/6             Off

       BIOS update through utility           SW1/8              On

       BIOS write enabled                    SW1/8             Off

  Note: On jumper P7, if jumper is set on 1 & 2, move to 2 & 3. The
  jumper doesnt have to be moved back to 1 & 2. The reverse is true if 2
  & 3 are closed. Move to 1 & 2.

                    DRAM

     Size          Bank 0        Bank 1

      8MB        (2) 1M x 36      None

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

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

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

        CACHE SIZE

    Size         SL1

    256KB     Installed

      CPU SPEED

  Setting    SW1/7

   25MHz       On

   33MHz      Off

  50iMHz       On

  66iMHz      Off

                              FLOPPY DRIVE A

          Setting                   SW1/1                   SW1/2

          1.44MB                     On                      On

          2.88MB                     Off                     On

   1.2MB/none installed              On                      Off

  80/120MB streaming tape            Off                     Off

                              FLOPPY DRIVE B

          Setting                   SW1/3                   SW1/4

          1.44MB                     On                      On

          2.88MB                     Off                     On

   1.2MB/none installed              On                      Off

  80/120MB streaming tape            Off                     Off

          VIDEO MEMORY

      Size          Bank 0

      1MB        (4) 256K x 8

