Memory Module Guidelines; Removing The Memory; Installing The Memory - Dell OptiPlex 9020 Owner's Manual

4. Follow the procedures in

Memory Module Guidelines

To ensure optimal performance of your computer, observe the following general guidelines when configuring your
system memory:
• Memory modules of different sizes can be mixed (for example, 2 GB and 4 GB). But, all populated channels must
have identical configurations.
• Memory modules must be installed beginning with the first socket.
NOTE: The memory sockets in your computer may be labeled differently depending on the hardware
configuration. For example, A1, A2 or 1,2,3.
• If the quad-rank memory modules are mixed with single or dual-rank modules, the quad-rank modules must be
installed in the sockets with the white release levers.
• If memory modules with different speeds are installed, they operate at the speed of the slowest installed memory
modules.

Removing the Memory

1. Follow the procedures in
2. Remove:
a. cover
b. front bezel
c. drive cage
3. Press down on the memory retention clips on each side of the memory modules, and lift the memory modules out of
the connectors on the system board.

Installing the Memory

1. Align the notch on the memory-card with the tab on the system-board connector.
2. Press down on the memory module until the release tabs spring back to secure it in place.
3. Install the:
a. drive cage
b. front bezel
c. cover
4. Follow the procedures in
After Working Inside Your Computer .
Before Working Inside Your Computer .
After Working Inside Your Computer .
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