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Additional Information
This section provides information for the additional features that are part of 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
•If memory modules with different speeds are installed, they operate at the speed of the slowest installed memory modules.
Power Supply Unit (PSU) Lock
The PSU lock prevents the removal of the PSU from the chassis.
NOTE: To lock or unlock the PSU, always ensure that the cover of the chassis is removed. For information on removing the air tunnel (if available), see Removing the air tunnel (if available).
To secure the PSU, remove the screw from the unlock screw location and tighten the screw to the lock location. Similarly, to unlock the PSU, remove the screw from the lock screw location and tighten the screw to the unlock screw location.
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