IBM F50 RS/6000 7025 - Manual (Page 163)

Note: Memory card 1 is the bottom card if there are two cards installed. If you only
have one memory card, it is memory card 1.
For information on installing or adding memory adapter cards, see “Installing or
Adding Memory Adapter Cards” on page 5-20.
For information on removing memory adapter cards, see “Removing Memory
Adapter Cards” on page 5-22.
For information on installing memory modules, see “Memory-Modules” on
page 5-24.
Chapter 5. Installing Options 5-19