Dell OptiPlex 9020 (Mid 2013) - Manual (Page 15)

4. Follow the procedures in After Working Inside Your Computer .
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 Before Working Inside Your Computer .
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 .
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