Installing Or Replacing A Memory Module - Lenovo ThinkCentre M78 Hardware Maintenance Manual

7. Pivot the card latch to the closed position to secure the PCI card.
Figure 15. Installing a PCI card
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 132.

Installing or replacing a memory module

Attention:
Do not open your computer or attempt any repair before reading and understanding "Important safety information"
on page 1.
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
32 GB system memory. When installing or replacing a memory module, use 2 GB, 4 GB, or 8 GB DDR3
UDIMMs in any combination up to a maximum of 32 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 71.
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Chapter 9 Replacing FRUs (machine types: 1562, 1565, 1662, 1663, 1765, 1766, 2011, 2110, 2111, 2112, 10BN, 10BQ, and 10BR)
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