Dell W66FF Installation And Service Manual

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3. To verify if the memory module has been installed properly, press F2 and navigate to System Setup Main Menu > SystemBIOS > Memory Settings. In the Memory Settings screen, the System Memory Size must reflect the updated capacity ofthe installed memory.4. If the System Memory Size is incorrect, one or more of the memory modules may not be installed properly. Ensure that thememory modules are firmly seated in their sockets.5. Run the system memory test in system diagnostics.Processor and heat sink moduleThis is a service technician replaceable part only.Removing a processor and heat sink modulePrerequisites1. Follow the safety guidelines listed in the Safety instructions.2. Follow the procedure listed in the Before working inside your system.3. Remove the air shroud.NOTE: The heat sink and processor are hot to touch for some time after the system has been powered down. Allow theheat sink and processor to cool down before handling them.Steps1. Ensure all four anti-tilt wires are in the locked position (outward position), and then using a Torx T30 tool, loosen the captivenuts on the heat sink in the order that is mentioned below:a. Loosen the first nut three turns.b. Loosen the nut diagonally opposite to the nut you loosened first.c. Repeat the procedure for the remaining two nuts.d. Return to the first nut to loosen it completely.2. Set the Anti-Tilt wires to the unlocked position (inward position).Figure 52. Loosening the nuts and set the Anti-Tilt wires to the unlocked position3. Lift the processor and heat sink module (PHM) from the system and set the PHM aside with the processor side facing up.62 Installing and removing system components