System memory

Last Updated : Feb 20, 2025 |

Memory overview

Avaya systems ship with DDR4 registered DIMMs (RDIMMs). System memory holds the instructions that are executed by the processor. Currently, Avaya Solutions Platform R640 systems only support RDIMMs.

Memory bus operating frequency operates on 2933 MT/s, 2666 MT/s, 2400 MT/s, or 2133 MT/s.

Memory bus for new Profile 4 and 5 operates at 2933MHz. Servers and FRU DIMMs have speeds up to 3200MHz on the same part number. Higher speed rated DIMMS are backward compatible with slower speed DIMMs.

The memory system contains 24 memory sockets split into two sets of 12 sockets, one set per processor. Each 12-socket set is organized into six channels. In each channel, the release tabs of the first socket are marked white, and the second socket black.