Lenovo Intel Xeon E5520 67Y0011 Manuale Utente

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Thermal/Mechanical Design Guide

The socket will be tested against the conditions listed in the LGA1366 Socket Validation 
Reports with heatsink and the ILM attached, under the loading conditions outlined in 
this chapter. 

 provides load specifications for the LGA1366 socket with the ILM installed. 

The maximum limits should not be exceeded during heatsink assembly, shipping 
conditions, or standard use condition. Exceeding these limits during test may result in 
component failure. The socket body should not be used as a mechanical reference or 
load-bearing surface for thermal solutions.

1.

These specifications apply to uniform compressive loading in a direction perpendicular to the IHS top 

surface.

2.

This is the minimum and maximum static force that can be applied by the heatsink and it’s retention 

solution to maintain the heatsink to IHS interface. This does not imply the Intel reference TIM is validated 

to these limits.

3.

Loading limits are for the LGA1366 socket.

4.

This minimum limit defines the compressive force required to electrically seat the processor onto the socket 

contacts.

5.

Dynamic loading is defined as an 11 ms duration average load superimposed on the static load 

requirement.

6.

Test condition used a heatsink mass of 550 gm [1.21 lb] with 50 g acceleration measured at heatsink mass. 

The dynamic portion of this specification in the product application can have flexibility in specific values, but 

the ultimate product of mass times acceleration should not exceed this dynamic load.

LGA1366 socket electrical requirements are measured from the socket-seating plane of 
the processor to the component side of the socket PCB to which it is attached. All 
specifications are maximum values (unless otherwise stated) for a single socket 
contact, but includes effects of adjacent contacts where indicated. 

Static compressive load from ILM cover to 

processor IHS

470 N [106 lbf]

623 N [140 lbf]

Heatsink Static Compressive Load

0 N [0 lbf]

266 N [60 lbf]

Total Static Compressive Load 
(ILM plus Heatsink)

470 N (106 lbf)

890 N (200 lbf)

Dynamic Compressive Load 

(with heatsink installed) 

N/A

890 N [200 lbf] 

Pick and Place Cover Insertion / Removal force

N/A

10.2 N [2.3 lbf]

Load Lever actuation force

N/A

38.3 N [8.6 lbf] in the 

vertical direction 
10.2 N [2.3 lbf] in the 

lateral direction.