HP D5970A - NetServer - LCII Service & Reference Manual page 42

For board-to-board interleaving, each memory board must hold the same number of DIMMs. If
one board holds two types of DIMMs, the other board must also, and in the same banks. (For
example, if one memory board holds eight 256 MB DIMMs in Banks A and B and eight 64MB
DIMMs in Banks C and D, the other board must match this configuration exactly if card-to-card
interleaving is to take place.)
36
Primary
Memory
Board
Secondary
Memory
Board
NOTE Keep both memory
boards in the HP
NetServer during
operation, even if the
secondary board has
no DIMMs. The
empty board acts as
a terminator for the
memory board slot.