Olivetti M386/25
| Machine type | XP 2670 |
| Serial | 0028683 |
| Manufacturer | Olivetti, made in Italy |
| Preloaded software | MS-DOS 4.01 and Windows 3.0 or OS/2 1.2 |
| Date | October(?) 1991 |
Physical description
| Type | Desktop |
| Dimensions (HxWxD) | 155 x 420 x 405 mm |
| Drive bays | 4 x 3.5" (two may be converted into one 5.25" half-height), all accessible |
| Power supply | 200-220VAC, 1A (dated 02/91) |
Main board
| Manufacturer | Olivetti, model BA247 (07/90 on sticker) |
| BIOS | Olivetti, vers. 1.09, June 26, 1991 (50 Kb) |
| Chipset | Olivetti |
| Processor | Intel 80386DX-25 MHz (32-bit) PGA |
| Coprocessor | Intel 80387DX-25 MHz, PGA ADDITION, socket for optional Weitek coprocessor (*) |
| External cache | 32 Kb 25ns |
| Cache Controller | Intel 82385-25 |
| Memory | 2 Mb, 80ns on board, plus 8 sockets for 80ns, 30-pin SIMMs (to be installed in groups of four) |
| Max memory | 18 Mb (2 Mb on board + 16 x 1 Mb SIMMs, incl. memory card) (**) |
| Bus | ISA 16-bit |
| Expansion slots | 5 x 16-bit ISA (all available), slot for additional memory card (32-bit proprietary) |
| Interface | FDD (2 units), IDE HDD (2 units) |
| Video | Integrated Chips & Technologies VGA-plus adapter |
| Ports | PS/2 keyboard, PS/2 mouse, serial (UART 16550A), parallel, VGA |
Cards
| Installed RAM | 8 x 1 Mb 70ns SIMMs (four w. 15/2/94 sticker, four dated 94), total mem. 10 Mb |
| Ethernet | SMC WD8013EP (9120 on chips) ADDITION |
Storage
| Diskette drive | 1.44 Mb, 3.5" slim-size (Sony MFD-17W, 9108) |
| Hard disk | Conner CP30104 (100 Mb), IDE/ATA, 3.5" half-height (9139) |
Trivia
| Acquisition | May 0'3, paid a couple $ |
| Condition | Very good, working, no missing parts |
| Installed sw | MS-DOS 6.20, MS Windows f.W. 3.11, NetWare 2.20 |
| Repairs/modifications | Added 4 x 1 Mb memory SIMMs (it had 6 Mb only) |
| Current status | All hw working |
| Current O.S. | None |
| Spare parts | Parts and accessories from other Olivetti PCs (P750, P800) |
Notes
(*) Two sockets for optional coprocessors are featured, allowing either an 80387 or a Weitek 3167 to be installed.
(**) Apparently, this system supports a maximum of 15 Mb (see my experiences with this M386/25).
Peripherals: KEYBOARDS, MONITORS, MICES
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This page was first
published on the web on May 26, 2003 |