Hardware options installation 114
DIMM type DIMM rank
Capacity
Maximum capacity for
Maximum capacity for
Maximum memory capacity – Intel Xeon E5-2600 v4 processor installed
DIMM type DIMM rank
Capacity
Maximum capacity for
Maximum capacity for
SmartMemory
SmartMemory authenticates and unlocks certain features available only on Qualified memory and verifies
whether installed memory has passed Hewlett Packard Enterprise qualification and test processes.
Qualified memory is performance-tuned for ProLiant and BladeSystem servers and provides future
enhanced support through Active Health and manageability software.
Memory subsystem architecture
The memory subsystem in this server is divided into channels. Each processor supports four channels,
and each channel supports one DIMM slot.
Channel Population order Slot number
1
2
DIMM slots are identified by number and by letter. Letters identify the population order. Slot numbers are
reported by ROM messages during boot and are used for error reporting. For the DIMM slot locations, see
"DIMM slot locations (on page 13)."
Single-, dual-, and quad-rank DIMMs
To understand and configure memory protection modes properly, an understanding of single-, dual-, and
quad-rank DIMMs is helpful. Some DIMM configuration requirements are based on these classifications.
A single-rank DIMM has one set of memory chips that is accessed while writing to or reading from the
memory. A dual-rank DIMM is similar to having two single-rank DIMMs on the same module, with only one
rank accessible at a time. A quad-rank DIMM is, effectively, two dual-rank DIMMs on the same module.
Only one rank is accessible at a time. The server memory control subsystem selects the proper rank
within the DIMM when writing to or reading from the DIMM.
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