–
Not all possible configurations will be offered.
10.2.3.2 NVM/LRDIMM
NVM/LRDIMM is a new non-volatile DIMM memory that has read performance
characteristics close to DRAM, lower write performance, and larger memory
capacity. NVM/LRDIMM is populated in a DDR4 288 pin DIMM connector in a
DDR4 channel and utilizes the DDR-T protocol.
Supports the following operation modes:
–
Memory mode (2LM)
–
App Direct mode (1LM)
–
Mixed mode (2LM), mixture of Memory and App Direct mode
Memory mode (2LM)
–
In Memory mode NVM/LRDIMM are configured as volatile memory
.
–
In this mode DDR4 DIMMs act as “write back” cache to the NVM/LRDIMM
on the DIMM channel within the same memory controller only.
–
Recommended DDR4 DRAM to NVM/LRDIMM capacity ratio is 1:8.
–
Min 1 DDR4 DIMM + 1 NVM/LRDIMM per IMC.
Main memory
TX2550 M5 Upgrade and Maintenance Manual 399
To Next Page
Loading...
