Lenovo Intel Xeon E5520 67Y0011 Manuale Utente

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Independent Loading Mechanism (ILM)
22
Thermal/Mechanical Design Guide
3.1.2
ILM Back Plate Design Overview
The unified back plate for 2-socket server and 2-socket Workstation products consists 
of a flat steel back plate with threaded studs for ILM attach, and internally threaded 
nuts for heatsink attach. The threaded studs have a smooth surface feature that 
provides alignment for the back plate to the motherboard for proper assembly of the 
ILM around the socket. A clearance hole is located at the center of the plate to allow 
access to test points and backside capacitors. An additional cut-out on two sides 
provides clearance for backside voltage regulator components. An insulator is pre-
applied. 
Back plates for processors in 1-socket Workstation platforms are covered in the 
Intel® Xeon® Processor 3500 Series Thermal/Mechanical Design Guide.
Figure 3-1. ILM Cover Assembly
Load Plate
Load Lever
Frame
Captive Fastener (4x)
Load Plate
Load Lever
Frame
Captive Fastener (4x)