IBM PS/1 User Manual

72-Pin Memory SIMMs: The 72-pin memory SIMM for 486SX, 486DX, and
486DX2 system boards are usually marked with a label that shows the size
and speed (for example, 1M×36, 7 ns). SIMMs that are not explicitly
labeled cannot be identified other than by part number. Consult the SIMM
manufacturer documentation to identify SIMM values when you are unsure of
the SIMM value in the system.
Specifications
Size:
Machine Type 2133 System Unit
– Width: 360 mm (14.2 in.)
– Depth: 421.5 mm (16.6 in.)
– Height: 122.1 mm (4.8 in.).
Machine Type 2155 System Unit
– Width: 405 mm (15.9 in.)
– Depth: 421.5 mm (16.6 in.)
– Height: 148.3 mm (5.8 in.).
Machine Type 2168 System Unit
– Width: 240 mm (9.5 in.)
– Depth: 416 mm (16.4 in.)
– Height: 427 mm (16.8 in.).
Display (max.)
– Width: 356 mm (14.0 in.)
– Depth: 382 mm (15.0 in.)
– Height: 352 mm (13.9 in.) with tilt/swivel stand.
Weight:
Machine Type 2133 System Unit
– 9 kg (20 lb).
Machine Type 2155 System Unit
– 11 kg (23.5 lb).
Machine Type 2168 System Unit
– 12.7 kg (28 lb).
Display (max.)
– 11.5 kg (25.4 lb).
General Information 1-21

IBM PS/1 Specifications

General

Brand	IBM
Model	PS/1
Category	Desktop
Language	English