Toshiba Xeon 2.8GHz UPG3843W Manuale Utente

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 details the flatness and tilt specifications for the IHS of the Intel Xeon processor, 

respectively. Tilt is measured with the reference datum set to the bottom of the processor 
interposer. 

 provides dynamic and static load specifications for the processor IHS. These mechanical

load limits should not be exceeded during heat sink assembly, mechanical stress testing, or
standard drop and shipping conditions. The heat sink attach solutions must not induce continuous
stress onto the processor with the exception of a uniform load to maintain the heat sink-to-
processor thermal interface. It is not recommended to use any portion of the processor interposer as
a mechanical reference or load bearing surface for thermal solutions.

 

1. This specification applies to a uniform compressed load.
2. This is the maximum static force that can be applied by the heatsink and clip to maintain the heatsink and

processor interface.

3. These parameters are based on design characterization and not tested.
4. Dynamic loading specifications are defined assuming a maximum duration of 11ms.
5. The heatsink weight is assumed to be one pound. Shock input to the system during shock testing is assumed

to be 50 G’s. AF is the amplification factor.

Static

50

lbf

1, 2, 3

Dynamic

50 + 1 lb * 50G input * 1.8 (AF)

= 140

lbf

1, 2, 4, 5