General Dimm Slot Population Guidelines; Installing A Dimm - HP hpe proliant dl20 gen9 User Manual

General DIMM slot population guidelines

Observe the following guidelines for all AMP modes:
•
Install DIMMs only if the corresponding processor is installed.
•
Do not mix LRDIMMs and RDIMMs.
•
White DIMM slots denote the first slot of a channel (Ch 1-A, Ch 2-B, Ch 3-C, Ch 4-D).
•
When only one processor is installed, install DIMMs in sequential alphabetic order: A, B, C, D, E, F,
and so forth.
•
When two processors are installed, install the DIMMs in sequential alphabetical order balanced
between the two processors: P1-A, P2-A, P1-B, P2-B, P1-C, P2-C, and so forth.
•
When single-rank, dual-rank, and quad-rank DIMMs are populated for two DIMMs per channel,
always populate the higher number rank DIMM first (starting from the farthest slot). For example, first
quad-rank DIMM, then dual-rank DIMM, and then lastly single-rank DIMM.
•
DIMMs should be populated starting farthest from the processor on each channel.
For more information about server memory, see the Hewlett Packard Enterprise website
(http://www.hpe.com/info/memory).
The DIMM speeds supported in this server are listed in the following table:
Populated slots
(per channel)
1
2
Advanced ECC population guidelines
For Advanced ECC mode configurations, observe the following guidelines:
•
Observe the general DIMM slot population guidelines.
•
DIMMs may be installed individually.

Installing a DIMM

If installed, remove the security bezel (on page 17).
1.
Power down the server (on page 17).
2.
Remove all power:
3.
Disconnect each power cord from the power source.
a.
Disconnect each power cord from the server.
b.
Do one of the following:
4.
Extend the server from the rack (on page 18).
o
Remove the server from the rack (on page 19).
o
Remove the access panel (on page 20).
5.
Remove the air baffle (on page 24).
6.
Open the DIMM slot latches.
7.
Rank
Single, dual or quad-rank 2133
Single, dual or quad-rank 2133
Speeds supported
(MT/s)
Hardware options installation 66