HP ProLiant ML350 G4 Server - Manual (Page 53)

Hardware Options Installation 53
6. Install the DIMM.
7. Install the access panel.
8. If you are installing DIMMs in an online spare configuration, use RBSU to
configure this feature.
Interleaving and Non-Interleaving Memory Configuration
This server supports both interleaving and non-interleaving memory
configurations. Interleaving memory increases bandwidth by allowing
simultaneous access to more than one block of data (for example, overlapping
Read-Writes). This is accomplished by dividing the system memory between
pairs of DIMMs and Writing-Reading blocks of data to/from both
simultaneously. In order to take advantage of memory interleaving, identical
DIMMs must be installed in pairs. DIMMs can also be installed singularly in slot
1 only if memory interleaving is not desired.
Activating Interleaving Memory
Interleaving memory functionality is automatically activated whenever two
identical DIMMs are detected in sockets 1 and 2. If sockets 3 and 4 are
populated, it must be with identical DIMMs as well. If identical DIMMs are
installed in sockets 1, 2, and 3, the system will not boot.