Use the guidelines described in this topic when installing, upgrading, or replacing FB-DIMMs:
There are a total of 16 slots that support industry-standard FB-DIMMs.
Supported FB-DIMM capacities are 1 GByte, 2 GByte, 4 GByte, and 8 GByte.
Valid quantities of FB-DIMMs are 4, 8, or 16.
All FB-DIMMs in the server must be the same capacity.
All FB-DIMMs in a branch must have the same part number.
Note - FB-DIMMs that run on 1.5V are not supported in this server. An FB-DIMM that runs on 1.5V is sometimes noted with an LV on the part number label. Do not install such FB-DIMMs in this server.
When adding memory to the server, ensure that you follow all of the guidelines described in this topic.
You might need to relocate some of the original FB-DIMMs to ensure that all FB-DIMMs in a branch have the same part number.
Ensure that the replacement FB-DIMM has the same part number as the FB-DIMM you are removing.
If you are unable to obtain an FB-DIMM with the same part number, you might need to replace all the FB-DIMMs in the branch to ensure that all have the same part number.