Oracle X7-2 Service Manual

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” on page 19 and “Customer-Replaceable
Units” on page 21.
The Oracle Server X7-2 supports a variety of DDR4 DIMM configurations that can include
quad-rank (QR) and dual-rank (DR) DDR4 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” on page 50.
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:
■
“DIMM and Processor Physical Layout” on page 98
■
“DIMM Population Scenarios” on page 99
■
“DIMM Population Rules” on page 99
■
“Populating DIMMs for Optimal System Performance” on page 100
■
“Populating DIMMs in Single-Processor Systems for Optimal System
Performance” on page 100
■
“Populating DIMMs in Dual-Processor Systems for Optimal System
Performance” on page 102
■
“DIMM Operating Speeds” on page 103
■
“DIMM Rank Classification Labels” on page 103
■
“Inconsistencies Between DIMM Fault Indicators and the BIOS Isolation of Faulty
DIMMs” on page 104
Servicing the DIMMs (CRU) 97

Oracle X7-2 Specifications

General

Processor	Intel Xeon Scalable processors
Number of Processors	1 or 2
Memory	Up to 1.5 TB DDR4
Memory Slots	24 DIMM slots
Form Factor	2U Rackmount
Storage Bays	8 x 2.5-inch
CPU Socket	Socket P (LGA 3647)
Power Supply	Redundant hot-swappable power supplies