Dell OptiPlex 3020–Mini Tower Owner's Manual

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.

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