IBM PS/1 User Manual

Asm– Part
Index Number Units Description
4–1 System Boards
Note: See Appendix, “Model Config-
urations and FRU Part Numbers” on
page A-1 for model specifications.
72-Pin Memory SIMMs
–1 52G2968 1 - 486SX 25MHz, 512KB VRAM,
without SIMMs
–1 34G1871 1 - 486SX 25MHz, 512KB VRAM, 2MB
SIMMs
–1 34G1872 1 - 486SX 25MHz, 512KB VRAM, 4MB
SIMMs
–1 52G2969 1 - 486SX 33MHz, 128K Cache, 1MB
VRAM, without SIMMs
–1 34G1874 1 - 486SX 33MHz, 1MB VRAM, 4MB
SIMMs
–1 52G2970 1 - 486SX 33MHz, 1MB VRAM, without
SIMMs
–1 52G6538 1 - 486DX 33MHz, 128K Cache, 1MB
VRAM, without SIMMs
–1 34G1876 1 - 486DX 33MHz, 128K Cache, 1MB
VRAM, 4MB SIMMs
–1 52G2971 1 - 486DX2 50MHz, 128K Cache, 1MB
VRAM, without SIMMs
–1 34G1942 1 - 486DX2 50MHz, 128K Cache, 1MB
VRAM, 4MB SIMMs
–1 52G6537 1 - 486DX2 66MHz, 128K Cache, 1MB
VRAM, without SIMMs
–1 34G1881 1 - 486DX2 66MHz, 128K Cache, 1MB
VRAM, 8MB SIMMs
–2 34G1856 1 Riser Card
–3 60G2077 1 Riser Card Support (WT only)
–4 34G1870 1 Adapter Card Front Support
–5 34G1867 1 3.5-inch Bay Panel
–6 34G1866 1 5.25-inch Bay Panel
–7 34G1868 1 Blank Audio Panel with hole (WT only)
–7 34G1869 1 Blank Audio Panel without hole
–8 34G1861 1 Base Assembly
Parts Catalog 7-13

IBM PS/1 Specifications

General

Processor	Intel 80286 or 80386
Processor Speed	10 MHz (80286)
RAM	1 MB (expandable to 2 MB or more)
Storage	40 MB hard drive
Floppy Drive	3.5" 1.44 MB
Graphics	VGA
Ports	Serial, Parallel, Mouse