Memory Expansion Adapters

Technology Primer: PS/2 Memory (by Tam Thi Pham)
Identify SIMMs (Presence Detect and Chip Configuration)
Memory Reference (FRUs, OEM modules...)
Error Handling (Parity, ECC-P, ECC)
PS/2 Memory Errata
Memory Error Codes (Models 56/57, 76/77, 85 & 90/95)

Modifying Memory Modules (by Peter Wendt)
Modifying other Memory Modules for PS/2
Modifying Memory Modules - Reports

Modifying 30-pin Modules for IBM SCSI /w Cache

Memory Module Pinouts
Model 80 Planar Memory

Dual Path / Dual Bus Memory

Memory Chip Conversion Chart (between different manufacturers)
Memory Technology Explained (DRAM, SRAM, VRAM, read/write cycles, etc.)
System Firmware Flash Memory (late PS/2s only)
Serial EEPROM (late PS/2s only)

QEMM5060 QEMM 50-60 for memory expansion adapters
HIMEMUPD.EXE Use if you can't see >16 MB under W95

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: 08 May 2024 - Changelog | About | Legal & Contact