IBM F50 RS/6000 7025 - Manual (Page 169)

Adding or Replacing Memory to an Existing Card
1. Remove the memory adapter card, see “Removing Memory Adapter Cards” on
page 5-22
2. Locate the memory module connectors and determine which module you want to
add or remove. If you are removing memory modules, see “Removing Memory”
on page 5-28; then return here if you are replacing memory.
3. With one hand, touch any metal surface of the chassis to minimize static
electrical charges, and then pick up a memory-modules.
4. Install the memory module.
Note: Memory modules must be installed in identical pairs (size and speed).
New memory modules must be installed in the first available pair of vacant
connectors, starting at pair 1 (connectors J1 and J2) and progressing to pair 8
(connectors J15 and J16). Refer to the previous figure.
a. The memory modules are keyed so that they can only be inserted one way.
Align the memory module notches with the keys in the memory-modules
connectors.
Chapter 5. Installing Options 5-25