HP 828689-002, Руководство пользователя

Страница: 23 / 74

Hardware options installation 23
IMPORTANT: This server does not support mixing LRDIMMs or RDIMMs. Attempting to mix
any combination of these DIMMs can cause the server to halt during BIOS initialization.
The memory subsystem in this server can support LRDIMMs and RDIMMs:
•
RDIMMs offer address parity protection.
•
LRDIMMs support higher densities than single- and dual-rank RDIMMs, and higher speeds than
quad-rank RDIMMs. This support enables you to install more high capacity DIMMs, resulting in
higher system capacities and higher bandwidth.
All types are referred to as DIMMs when the information applies to all types. When specified as LRDIMM
or RDIMM, the information applies to that type only. All memory installed in the server must be the same
type.
The server supports the following DIMM speeds:
•
Single- and dual-rank PC4-2133 (DDR4-2133) RDIMMs operating at up to 2133 MT/s
•
Quad-rank PC4L-2133 (DDR4-2133) LRDIMMs operating at up to 2133 MT/s
Speed and capacity
DIMM type DIMM rank DIMM capacity Native speed (MT/s)
RDIMM
Single-rank 8 GB 2133
RDIMM
Dual-rank 16 GB 2133
LRDIMM
Quad-rank 32 GB 2133
Depending on the processor model, the number of DIMMs installed, and whether LRDIMMs or RDIMMs
are installed, the memory clock speed can be reduced to 1600 MT/s.
Populated DIMM speed (MT/s)
DIMM type DIMM rank 1 DIMM per channel 2 DIMMs per channel
RDIMM
Single-rank (8 GB) 2133 2133
RDIMM
Dual-rank (16 GB) 2133 2133
LRDIMM
Quad-rank (32 GB) 2133 2133
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 two DIMM slots, as shown in the following table.
Channel Processor 1 slot Processor 1 slot
number
Processor 2 slot Processor 2 slot
number
1
A
E
8
7
A
E
1
2
2
B
F
6
5
B
F
3
4