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 doesn’t 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