Memory options – HP ProLiant DL380 G4 Server User Manual
Page 41
Hardware options installation 41
11.
Install the PPM.
NOTE: The appearance of compatible PPMs may vary.
NOTE: The PPM is keyed and the key must be aligned when installed.
12.
Install the fan ("
Installing redundant hot-plug fans
13.
Install the access panel ("
Memory options
You can expand server memory by installing PC2-3200 Registered DDR-2 SDRAM DIMMs. The server
supports up to six DIMMs.
PC2-3200 DIMMs can either be single-rank or dual-rank. While it is not normally important for you to
differentiate between these two types of DIMMs, certain DIMM configuration requirements are based on
these classifications. Certain configuration requirements exist with single-rank and dual-rank DIMMs that
allow the architecture to optimize performance. A dual-rank DIMM is similar to having two separate
DIMMs on the same module. Although only a single DIMM module, a dual-rank DIMM acts as if it were
two separate DIMMs. The primary reason for the existence of dual-rank DIMMs is to provide the largest
capacity DIMM given the current DIMM technology. If the maximum DIMM technology allows for creating
2-GB single-rank DIMMs, a dual-rank DIMM using the same technology would be 4-GB. Understanding
the existence of single-rank and dual-rank DIMMs is all that is necessary for understanding the memory
population guidelines of this server.
NOTE: The Advanced Memory Protection option in RBSU provides additional memory protection beyond
Advanced ECC. By default, the server is set to Advanced ECC Support. Refer to "ROM-Based Setup
Utility ("
)," on the Documentation CD, for more information.
The server supports two types of memory configurations with single-rank memory DIMMs:
•
Standard memory configuration for maximum performance with up to 12 GB of active memory (six
2-GB single rank memory modules)
•
Online spare memory configuration for maximum availability with up to 8 GB of active memory and
4 GB of online spare memory