IBM 704 - Manual (Page 145)

Removing Memory-Module Kits
6. Store any memory modules that you are no longer using in a
static-protective package. Make a note of the kit size and speed
for future reference.
Stat
ic
Devices
.
7. If you are installing memory modules in the empty connectors,
go to “Installing Memory-Module Kits” on page 113.
If you are not installing memory modules in the empty
connectors, go to Table 10 on page 283 to update the memory
information; then, return here.
Chapter 4. Installing Options 127