Installing Or Replacing A Memory Module - Lenovo ThinkStation 4215 Hardware Maintenance Manual

7. Pivot the card latch to the closed position to secure the PCI card.
Figure 10. Installing a PCI card

Installing or replacing a memory module

This section provides instructions on how to install or replace a memory module.
Your computer has four slots for installing or replacing memory modules that
provide up to a maximum of 16 GB system memory. When installing or replacing
a memory module, use the following guidelines:
v Use either DDR3 ECC UDIMMs or DDR3 Non-ECC UDIMMs for your
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Hardware Maintenance Manual
What to do next:
v To work with another piece of hardware, go to the appropriate section.
v To complete the installation or replacement, go to "Completing the FRU
replacement" on page 122.
Attention
Do not open your computer or attempt any repair before reading and
understanding the "Important safety information" in the ThinkStation Safety
and Warranty Guide that came with your computer. To obtain a copy of the
ThinkStation Safety and Warranty Guide, go to:
http://www.lenovo.com/support
computer. Do not install both DDR3 ECC UDIMMs and DDR3 Non-ECC
UDIMMs in the same computer.