Olivetti M300-05

Machine type XP 2655
Serial 2229470
Manufacturer Olivetti, made in Italy
Date April 1992

Physical description

Type Desktop
Dimensions (HxWxD) 125 x 400 x 410 mm
Drive bays 2 x 3.5" slim (1 internal), 1 x 5.25" half-height
Power supply 110W, 200-220VAC (9111M)

Main board

Manufacturer Olivetti (9216 on chip)
BIOS Olivetti, Resident Diagnostic vers. 1.05 (4/9/91)
Chipset Olivetti
Processor Intel 386SX-16 MHz (32-bit) PQFP
Coprocessor Intel i387SX-16 math coprocessor
Memory 1 Mb, 80ns on board, plus 4 sockets for 100/80ns, 30-pin SIMMs (to be installed in pairs)
Max memory Up to 11 Mb (w. 2 x 4 Mb plus 2 x 1 Mb SIMMs)
Bus ISA 16-bit
Expansion slots 4 x 16-bit ISA, on riser card (all available)
Interface FDD (2 units), IDE HDD (2 units)
Video Integrated OAK VGA adapter
Ports PS/2 keyboard, PS/2 mouse, serial (UART 16550A), parallel, VGA


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


Diskette drive 1.44 Mb, 3.5" slim-size (Panasonic JU257A1)
2nd Diskette drive 1.2 Mb, 5.25" half-size (Panasonic JU-475-3C)
Hard disk Conner CP3046 (40 Mb), IDE/ATA, 3.5" half-height


Acquisition July '03, paid a few $, was in a deposit of dismissed appliances
Condition Quite good, not working (setup error)
Installed O.S. MS-DOS 6.22, MS Windows 3.1 (Italian)
Repairs/modifications Replaced failing battery
Current status All hw working
Current O.S. None
Spare parts Floppy drives, accessories


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