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IBM Personal System/2 Model 65 SX


Machine Type 8565-121
Serial 55-CZ597
Manufacturer IBM United Kingdom Ltd.
FCC ID ANO8565
Date June 1990

Physical description

Type Floor-standing (print on disk tray 19 JUN 1990, print inside side panel 060690)
Dimensions (HxWxD) 597 x 166 (318 incl. feet) x 483 mm
Weight 23.6 Kg
Drive bays 2 x 3.5" half-height (both accessible), 2 x 5.25" full height (one accessible)
Power supply 242 W 90-137/180-265 VAC auto sense, auto-restart (DAT.: 24/90)

Main board

Manufacturer IBM (planar id E3FF)
BIOS IBM, Feb. 8, 1990 (128 Kb, sticker 21/6/90)
Processor Intel 80386SX-16 MHz (32-bit) PQFP
Coprocessor Socket for optional i80387SX
Memory 2 sockets for 100ns 72-pin SIMMs, parity checked (PS/2 type)
Max on system board 8 Mb (2 x 4 Mb)
Max. using adapter cards 16 Mb (about 15 Mb usable)
Bus Micro Channel (MCA) 16-bit
Expansion slots 8 (all 16-bit, 1 w. video ext.)
Video Integrated 16-bit VGA display adapter (256 Kb, max. 320x200 x 256 colours or 640x480 x 16 colours)
Interface FDD (2 units)
Ports PS/2 keyboard, PS/2 mouse, serial (UART 16550), parallel, VGA

Cards

Installed RAM 2 x 2 Mb 85ns SIMMs (65X6249) on planar, plus 8 Mb on Memory card (below)
Memory IBM 1-8 Mb 80286 memory expansion adapter (id F7F7, chips 9148) w. 4 x 2 Mb SIMMs (65X6249, two 91-49, one 92-43, one has 9129 on chips) ADDITION
Controller IBM 16-bit SCSI Adapter (id 8EFE, print 30/3/90, cables 25 JUN 1990)

Storage

Diskette drive 1.44 Mb, 3.5" half-height (Mitsubishi MF355C, APR 1990)
Hard disk Model WDS-3158 (120 Mb) SCSI, 3.5" half-height
2nd Hard disk Model WDS-3158 (120 Mb) SCSI, 3.5" half-height ADDITION

Trivia

Acquisition Mid-2000, bought for a few $ together w. some other appliances, including PS/2 system units and 8514 monitors
Condition Very good, working
Installed sw None
Repairs/modifications Removed token-ring adapter, added second hard disk, memory card w. SIMMs (it had only 4 Mb)
Current status All hw working
Current O.S. IBM PC DOS 5.00 (Italian)
Spare parts Almost everything except cabinet

Peripherals: KEYBOARDS, MONITORS, MICES, PRINTERS


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This page was first published on the web on Nov. 11, 2001
Last revised Oct. 21, 2004
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