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Oracle® Exadata Storage Server X8-2 EF, HC, and XT Service Manual

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Updated: June 2021
 
 

DIMM Population Rules

This section provides DIMM population rules for adding DIMMs to the servers.

Server
DIMM Population Rules
Oracle Exadata Storage Server X8-2 EF and HC
  • The server supports a fixed base configuration of twelve 16 GB DDR4 DIMMs (192 GB), or a configuration that supports six 128 GB DCPMM DIMMs per processor for a maximum of 12 DCPMM DIMMs alongside 16 GB DDR4 DIMMs in the same memory channel. Do not attempt to any install any other DIMM sizes or DIMM types in the server

  • If your memory configuration supports only 16 GB DDR4 DIMMs, populate only the black DIMM slot (channel slot 0) within each memory channel for processors P0 and P1

  • If your memory configuration supports DCPMM DIMMs and DDR4 DIMMs, populate each processor socket with six 128 GB DCPMM DIMMs and six 16 GB DDR4 DIMMs. Populate the 16 GB DDR4 DIMMs in each black (channel slot 0) DIMM slot (0, 2, 4, 7, 9, 11) and populate the 128 GB DCPMM DIMMs in each white (channel slot 1) DIMM slot (1, 3, 5, 6, 8, 10)

Oracle Exadata Storage Server X8-2 XT
  • The server supports a fixed base configuration of six 16 GB quad-rank (LR) DDR4 DIMMs. Do not attempt to install any other DIMM sizes in the server

  • Populate only the black DIMM slot (channel slot 0) within each memory channel for processor P0