IBM Intel Xeon E5506 46M1079 User Manual

Intel

®

 Xeon

®

 Processor 5500 Series Datasheet, Volume 1

149

Baseboards designed for use by a system integrator should include holes that are in 
proper alignment with each other to support the boxed processor. Refer to 

 

for mounting hole dimensions.

 illustrates the Unified Retention System (URS) and the Unified Backplate 

Assembly. The URS is designed to extend air-cooling capability through the use of 
larger heat sinks with minimal airflow blockage and bypass. URS retention transfers 
load to the baseboard via the Unified Backplate Assembly. The URS spring, captive in 
the heatsink, provides the necessary compressive load for the thermal interface 
material. For specific design details on the URS and the Unified Backplate please refer 
to the Intel® Xeon® Processor 5500 Series Thermal / Mechanical Design Guide.

All components of the URS heat sink solution will be captive to the heat sink and will 
only require a Phillips screwdriver to attach to the Unified Backplate Assembly. When 
installing the URS the screws should be tightened until they will no longer turn easily. 
This should represent approximately 8 inch-pounds of torque. More than that may 
damage the retention mechanism components.