3 Things to Know About Upgrading RAM in a PowerBook 165C
- The PowerBook 165C has 4MB of RAM soldered to the logic board, with one expansion slot for adding more.
- You can install up to 10MB of additional RAM using standard 70ns SO-DIMMs, for a total of 14MB.
- That 14MB maximum is tiny by modern standards, but it was a real upgrade path for a 1993 laptop.