Xeon CEK Spring for 771 Socket, P/N: D13646
The CEK spring is located between the chassis standoffs and the heatsink standoffs. The purpose of the CEK spring is to provide compressive preload at the TIM interface when the baseboard
is pushed down upon it. This spring does not function as a clip of any kind. The two
tabs on the spring are used to provide the necessary compressive preload for the TIM
when the whole solution is assembled. The tabs make contact on the secondary side of
the baseboard. In order to avoid damage to the contact locations on the baseboard, the
tabs are insulated with a 0.127 mm [0.005 in.] thick Kapton* tape (or equivalent).