Replacing Dimms; Dimm Performance Guidelines And Population Rules - Cisco UCS C260 Installation And Service Manual

Chapter 3 Maintaining the Server

Replacing DIMMs

This section includes the following topics:
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•
Caution DIMMs and their sockets are fragile and must be handled with care to avoid damage during installation.
Caution Cisco does not support 3rd-party DIMMs. Using non-Cisco DIMMs in the server might result in system
problems or damage to the motherboard.
To ensure the best server performance, it is important that you are familiar with memory performance
Note
guidelines and population rules before you install or replace memory.

DIMM Performance Guidelines and Population Rules

This section describes the type of memory that the server requires and its effect on performance. The
section includes the following topics:
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•
•
DIMM Sockets
Figure 3-16
Figure 3-16
Two-DIMM
Riser
Four-DIMM
Riser
OL-24342-01z
DIMM Performance Guidelines and Population Rules, page 3-25
DIMM Replacement Procedure, page 3-27
DIMM Sockets, page 3-25
DIMM Population Rules, page 3-26
DIMM Sparing and Rank Sparing, page 3-26
shows the numbering of the DIMM slots on the two types of memory risers.
DIMM Slots on Memory Risers
Installing or Replacing Server Components
DIMM 1
DIMM 2
DIMM 3
DIMM 1
DIMM 2
DIMM 4
Cisco UCS C260 Server Installation and Service Guide
3-25