Make your own free website on Tripod.com

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


Back to Systems Listing
Back to PCs Main Page
Back to Home page

This page was first published on the web on Apr. 20, 2003
Last revised May 25, 2004
084