Installing Or Replacing A Memory Module - Lenovo ThinkCentre 1982 Hardware Maintenance Manual

7. Pivot the card latch to the closed position to secure the PCI card.
Figure 10. Installing a PCI card
8. To complete the replacement, go to "Completing the parts replacement" on page 112.

Installing or replacing a memory module

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre
Safety and Warranty Guide, go to:
http://support.lenovo.com
This section provides instructions on how to install or replace a memory module.
Your computer has four slots for installing or replacing DDR3 UDIMMs that provide up to a maximum of
16 GB system memory. When installing or replacing a memory module, use 2 GB or 4 GB DDR3 UDIMMs
in any combination up to a maximum of 16 GB.
The following table provides information about the memory module installation rules that you should
consider when installing or removing a memory module. The "X" mark indicates the memory slot(s) into
which the memory module(s) should be installed in different situations. The numbers 1, 2, 3, and 4 indicate
the installation sequence. To locate the memory module slots, see "Locating parts on the system board"
on page 77.
UDIMM
One UDIMM
Two UDIMMs
Three UDIMMs
Four UDIMMs
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ThinkCentre Hardware Maintenance Manual
DIMM 1 DIMM 2
X, 3
X, 3
DIMM 3
X
X, 1
X, 1
X, 4 X, 1
DIMM 4
X, 2
X, 2
X, 2