Olivetti M300-04

Machine type BU 304 - XXXX
Serial 0590831
Manufacturer Olivetti (made in Italy)
Date November 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 (3192)

Main board

Manufacturer Olivetti (3092 on card, 11/92 on sticker)
BIOS Olivetti resident diagnostics, rev. 1.04 (5/5/92, 50 Kb)
Processor Intel 386SX-20 MHz (32-bit) PQFP
Coprocessor Socket for 80387SX coprocessor
External cache 32 Kb (Intel 82385SX-20 contr.)
Memory 1 Mb, 80ns on board (2 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


Installed RAM 4 x 1 Mb, 80ns SIMMs (tot. mem. 5 Mb)


Diskette drive 1.44 Mb, 3.5" slim-size (Sony MFD-17W-85)
Hard disk Seagate ST351A/X (40 Mb), 3.5" half-height (31 MAR 92)


Acquisition July '03, paid a few $, was in a deposit of dismissed appliances
Condition Very good, working
Installed O.S. MS-DOS 5.00, MS Windows 3.1 (Italian)
Repairs/modifications Added 2 x 1 Mb memory SIMMs
Current status All hw working
Current O.S. None
Spare parts Floppy drive, accessories


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This page was first published on the web on July 13, 2003
Last revised May 24, 2004