Guide

Thermal and Mechanical Design
Intel® Xeon® Processor E7 2800/4800/8800 v2 Product Family 23
Thermal/ Mechanical Specifications and Design Guide
2.1.2.4.4 Package Alignment/Orientation
A means of providing fixed alignment and proper orientation with the pin 1 corner of
the package must be provided. The package substrate will have two pairs of keying
notches at the two opposing slides of the package. The socket will utilize the four
protrusions in the contact array area to serve as alignment features to mate with the
notches on the package. In addition, the socket raised walls at the four corners of the
socket facilitate the fine alignment between the package and socket contacts. The
package must sit flush against the socket contacts when aligned.
2.1.2.4.5 ILM Compatibility
The socket must provide ILM keying feature to ensure compatibility with the LGA2011-
1 Independent Loading Mechanism (ILM).
2.1.2.4.6 Markings
All markings required in this section must withstand a temperature of 260°C for
40 seconds, which is typical of a reflow/rework profile for solder material used on the
socket, as well as any environmental test procedure outlined in Appendix B, without
degrading. Socket marks must be visible after it is mounted on the motherboard.
•Name
• LF-LGA2011-1
. (Font type is Helvetica Bold – minimum 6 point [or 2.125 mm]).
Note: This mark shall be stamped or laser-marked into the sidewall of the stiffener plate on
the actuation lever side.
Manufacturer’s Insignia (font size at supplier’s discretion).
This mark will be molded or laser-marked into the top side of the socket housing.
Both socket name and manufacturer’s insignia must be visible when first seated on the
motherboard.
• Lot Traceability
Each socket will be marked with a lot identification code to allow traceability of all
components, date of manufacture (year and week), and assembly location. The mark
must be placed on a surface that is visible after the socket is mounted on the
motherboard. In addition, this identification code must be marked on the exterior of
the box in which the unit is shipped.
• Visual Aids
The socket will have markings identifying Pin 1. This marking will be represented by a
clearly visible triangular symbol in the location specified.
2.1.2.4.7 Contacts Characteristics
• Number of Contacts
Total number of contacts: 2011
•Layout
The contacts are laid out in two ‘L’ shape regions opposing each other as shown in
Figure 2-9. The arrows in the figure indicate the orientation of the contacts in the two
regions. There are 1005 and 1006 contacts in regions A and B, respectively.