Olivetti SX-20
| Machine type | BU 386 SX-XX |
| Serial | 6832219 |
| Manufacturer | Olivetti (made in Italy) |
| Date | May 1992 |
Physical description
| Type | Desktop |
| Dimensions (HxWxD) | 95 x 356 x 375 mm |
| Drive bays | 2 x 3,5", 1 x 5.25" half-height, all accessible |
| Power supply | 200-220VAC, 1A (05/92) |
Main board
| Manufacturer | Olivetti (10/91 on riser card) |
| BIOS | Olivetti resident diagnostics, rev. 1.15 (21 May 1991) |
| Processor | AMD Am386SX-20 MHz (32-bit) PQFP |
| Coprocessor | Socket for 80387SX coprocessor |
| External cache | 32 Kb (Intel 82385SX-20 contrl.) |
| Memory | 1 Mb, 80ns (12 chips), 4 sockets for 80ns 30-pin SIMMs (to be installed in pairs) |
| Max on system board | 17 Mb (w. 4 x 4 Mb SIMMs), about 16 Mb useable |
| Bus | ISA 16-bit |
| Expansion slots | 3 x 16-bit (all available) |
| Interface | FDD (2 units), HDD (IDE, 2 units) |
| Video | Integrated WDC 90C11 VGA adapter w. 256 Kb of memory (upgradeable to 512 Kb) |
| Ports | PS/2 keyboard, PS/2 mouse, serial (UART 16450), parallel, VGA |
Cards
| Installed RAM | 2 x 1 Mb 70ns, 2 x 1 Mb 80ns SIMMs (all und.) |
| Ethernet | (Unkn., p/n 142640-402) (9322 printed on card) |
Storage
| Diskette drive | 1.44 Mb, 3.5" slim-size (Sony MFD-17W-86, 9203) |
| Hard disk | Western Digital Caviar 2120 (120 Mb), IDE/ATA, 3.5" half-height (31 MAR 92) |
Trivia
| Acquisition | Apr. '03, gift |
| Condition | Very good, working |
| Installed O.S. | MS-DOS 6.22a, MS Windows 3.11 (Italian) |
| Repairs/modifications | Added 2 x 1 Mb memory SIMMs |
| Current status | All hw working |
| Current O.S. | None |
| Spare parts | Floppy drive, accessories |
Peripherals: KEYBOARDS, MONITORS, MICES
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This page was first
published on the web on Apr. 20, 2003 |