Servicing the DIMMs (CRU)
This section describes how to service memory modules (DIMMs). DIMMs are customer-replaceable units (CRUs) that require you to power off the server. For more information about CRUs, see Illustrated Parts Breakdown and Customer-Replaceable Units.
The Oracle Server X8-2 supports a variety of DIMM configurations that can include quad-rank (QR) and dual-rank (DR) DIMMs.
 | Caution - These procedures require that you handle components that are sensitive to electrostatic discharge. This sensitivity can cause the components to fail. To avoid damage, ensure that you follow antistatic practices as described in Electrostatic Discharge Safety. |
| Caution - Ensure that all power is removed from the server before removing or installing DIMMs, or damage to the DIMMs might occur. You must disconnect all power cables from the system before performing these procedures. |
The following topics and procedures provide information to assist you when replacing a DIMM or upgrading DIMMs:
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Populating DIMMs in Single-Processor Systems for Optimal System Performance
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Populating DIMMs in Dual-Processor Systems for Optimal System Performance
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Inconsistencies Between DIMM Fault Indicators and the BIOS Isolation of Failed DIMMs