PS/2 Family Overview

Models 25 - 40 feature 8- or 16-bit ISA bus and 8086, 286, or 386SX CPU.
Models 50 - 65 feature 16-bit MCA bus and 286, 386SX, 486SLC2, or 486SLC3 CPU.
Models 70 - 95 feature 32-bit MCA bus and 386DX, 486SX/DX/DX2/DX4, or Pentium CPU.

TypeNameForm FactorArchitectureCPU
Machines w/ ISA Bus
8525Model 25All-in-OneISA 8-bit8086
8525Model 25 286All-in-OneISA 16-bit286
8525Model 25 SXAll-in-OneISA 16-bit386SX
8530Model 30Desktop (D1)ISA 8-bit8086
8530Model 30 286Desktop (D1B)ISA 16-bit286
8533Model N33 SXNotebookISA 16-bit386SX
8535Model 35Desktop (D3)ISA 16-bit386SX
8540Model 40Desktop (D4)ISA 16-bit386SX/SLC
8543L40SXLaptopISA 16-bit386SX
9533PS/2 ESmall Fprt. (SF)ISA 16-bit486SLC2
Machines w/ 16-bit MCA Bus
8550Model 50, 50ZDesktop (D2)MCA 16-bit286
8551Model N51NotebookMCA 16-bit386SX/SLC
8554CL57LaptopMCA 16-bit386SX
8555Model 55 SXDesktop (D1B)MCA 16-bit386SX
8556Model 56Desktop (D3)MCA 16-bit386SX/SLC
8557Model 57Desktop (D4)MCA 16-bit386SX/SLC
8560Model 60Tower (T1)MCA 16-bit286
8565Model 65 SXTower (T1)MCA 16-bit386SX
9553Model 53Desktop (D1C)MCA 16-bit486SLC2
9556Model 56 SLC2/3Desktop (D3)MCA 16-bit486SLC2/SLC3
9557Model 57 SLC2/3Desktop (D4)MCA 16-bit486SLC2/SLC3
Machines w/ 32-bit MCA Bus
8570Model 70Desktop (D2)MCA 32-bit386, 486
8573Model P70LuggableMCA 32-bit386DX
8573Model P75LuggableMCA 32-bit486DX
8580Model 80Tower (T1)MCA 32-bit386DX
8590Model 90 XPDesktop (D5)MCA 32-bit386DX, 486SX/DX/DX2, Pentium
8595Model 95 XPTower (T2)MCA 32-bit386DX, 486SX/DX/DX2, Pentium
9576Model 76 & 76 i/sDesktop (D3)MCA 32-bit486SX/DX2/DX4
9577Model 77 & 77 i/sDesktop (D4)MCA 32-bit486SX/DX2/DX4
9585Model 85Tower (T2)MCA 32-bit486SX/DX2
9590Model 90Desktop (D5)MCA 32-bit386DX, 486SX/DX/DX2, Pentium
9595Model 95 (A)Tower (T2)MCA 32-bit386DX, 486SX/DX/DX2, Pentium

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
Last update: 20 Jan 2024 - Changelog | About | Legal & Contact