OLIVETTI ======== M24/M24SP Processor 8086 Processor 8/10MHz Speed Chip Set Unidentified Max. Onboard 640KB DRAM Cache None BIOS Unidentified Dimensions 355mm x 304mm I/O Options Floppy drive interface, parallel port, serial ports (2) NPU Options 8087 +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |----------------------+----------+---------------+----------| | Floppy drive | CN1 | Parallel port | J4 | | interface | | | | |----------------------+----------+---------------+----------| | Serial port 1 | J3 | Serial port 2 | J5 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Switch | Position | |--------------------------------------+----------+----------| |>> | 256KB memory chip not used | DIPSW0/5 | On | |---+----------------------------------+----------+----------| | | 256KB memory chip used | DIPSW0/5 | Off | |---+----------------------------------+----------+----------| |>> | NPU disabled | DIPSW0/6 | On | |---+----------------------------------+----------+----------| | | NPU enabled | DIPSW0/6 | Off | |---+----------------------------------+----------+----------| |>> | UART type select 8250 | DIPSW0/7 | On | |---+----------------------------------+----------+----------| | | UART type select 8530 | DIPSW0/7 | Off | |---+----------------------------------+----------+----------| |>> | BIOS type select 2732 (M24 only) | DIPSW0/8 | On | |---+----------------------------------+----------+----------| | | BIOS type select 2764 (M24 only) | DIPSW0/8 | Off | |---+----------------------------------+----------+----------| |>> | No memory installed in Bank 0 | DIPSW0/8 | On | | | (M24SP only) | | | |---+----------------------------------+----------+----------| | | Memory installed in Bank 0 | DIPSW0/8 | Off | | | (M24SP only) | | | |---+----------------------------------+----------+----------| |>> | Floppy drive tracks per inch | DIPSW1/1 | On | | | select 48 (320KB drive) | | | |---+----------------------------------+----------+----------| | | Floppy drive tracks per inch | DIPSW1/1 | Off | | | select 96 (640KB drive) | | | |---+----------------------------------+----------+----------| |>> | Floppy drive start up speed | DIPSW1/2 | On | | | select slow | | | |---+----------------------------------+----------+----------| | | Floppy drive start up speed | DIPSW1/2 | Off | | | select fast | | | |---+----------------------------------+----------+----------| |>> | HDU ROM code select on mainboard | DIPSW1/3 | On | |---+----------------------------------+----------+----------| | | HDU ROM code select on | DIPSW1/3 | Off | | | controller | | | |---+----------------------------------+----------+----------| |>> | Display controller select | DIPSW1/4 | On | | | standard | | | |---+----------------------------------+----------+----------| | | Display controller select non | DIPSW1/4 | Off | | | standard | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |--------------------+-------------------+-------------------| | 128KB | (18) 44256 | NONE | |--------------------+-------------------+-------------------| | 256KB | (18) 44256 | (18) 44256 | |--------------------+-------------------+-------------------| | 512KB | (18) 44100 | NONE | |--------------------+-------------------+-------------------| | 640KB (M24SP only) | (18) 44100 | (18) 44256 | |--------------------+-------------------+-------------------| | 640KB | (18) 44256 | (18) 44100 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM SWITCH CONFIGURATION | |------------------------------------------------------------| | Size | DIPSW0/1 | DIPSW0/2 | DIPSW0/3 | DIPSW0/4 | |----------------+----------+----------+----------+----------| | 128KB | Off | On | On | On | |----------------+----------+----------+----------+----------| | 256KB | On | Off | On | On | |----------------+----------+----------+----------+----------| | 384KB | Off | Off | On | On | |----------------+----------+----------+----------+----------| | 512KB | On | On | On | Off | | (mainboard | | | | | | only) | | | | | |----------------+----------+----------+----------+----------| | 512KB | On | On | Off | On | | (mainboard and | | | | | | expansion | | | | | | card) | | | | | |----------------+----------+----------+----------+----------| | 640KB | Off | On | Off | On | |----------------+----------+----------+----------+----------| | 640KB | Off | On | On | Off | | (mainboard | | | | | | only) | | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | VIDEO CONFIGURATION | |------------------------------------------------------------| | Type | DIPSW1/5 | DIPSW1/6 | |--------------------+-------------------+-------------------| | IBM B/W display | Off | Off | |--------------------+-------------------+-------------------| | 40 x 25 | Off | On | |--------------------+-------------------+-------------------| | 80 x 25 | On | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOPPY DRIVE CONFIGURATION | |------------------------------------------------------------| | Drives installed | DIPSW1/7 | DIPSW1/8 | |--------------------+-------------------+-------------------| | 1 | On | On | |--------------------+-------------------+-------------------| | 2 | Off | On | +------------------------------------------------------------+