
Thermal/Mechanical Design Guide 23
Independent Loading Mechanism (ILM)
3.2 Assembly of ILM to a Motherboard
The ILM design allows a bottoms up assembly of the components to the board. In
step 1, (see Figure 3-3), the back plate is placed in a fixture. Holes in the motherboard
provide alignment to the threaded studs. In step 2, the ILM cover assembly is placed
over the socket and threaded studs. Using a T20 Torx* driver fasten the ILM cover
assembly to the back plate with the four captive fasteners. Torque to 8 ± 2 inch-
pounds. The length of the threaded studs accommodate board thicknesses from
0.062” to 0.100”.
Figure 3-2. Back Plate
Threaded studs
Threaded nuts
Clearance hole
C
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t
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o
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t
Threaded studs
Threaded nuts
Clearance hole
C
u
t
-
o
u
t
C
u
t
-
o
u
t
Threaded studs
Clearance hole
Threaded nuts
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