Dell EMC PowerEdge XR11 Installation And Service Manual page 59

Steps
1. Ensure all four anti-tilt wires are in the locked position (outward position), and then using a Torx T30 tool, loosen the nuts on
the heat sink in the order that is mentioned below:
a. Loosen the first nut completely.
b. Loosen the nut diagonally opposite to the nut you loosened first.
c. Repeat the procedure for the remaining two nut.
Figure 48. Loosening the nuts and set the anti-tilt wires to the unlocked position
2. Set the anti-tilt wires to the unlocked position (inward position).
3. Lift the processor and heat sink module (PHM) from the system and set the PHM aside with the processor side facing up.
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