
LGA1366 Socket
18 Thermal/Mechanical Design Guide
2.4 Package Installation / Removal
As indicated in Figure 2-6, access is provided to facilitate manual installation and
removal of the package.
To assist in package orientation and alignment with the socket:
• The package Pin1 triangle and the socket Pin1 chamfer provide visual reference for
proper orientation.
• The package substrate has orientation notches along two opposing edges of the
package, offset from the centerline. The socket has two corresponding orientation
posts to physically prevent mis-orientation of the package. These orientation
features also provide initial rough alignment of package to socket.
• The socket has alignment walls at the four corners to provide final alignment of the
package.
See Appendix F for information regarding a tool designed to provide mechanical
assistance during processor installation and removal.
.
2.4.1 Socket Standoffs and Package Seating Plane
Standoffs on the bottom of the socket base establish the minimum socket height after
solder reflow and are specified in Appendix C.
Similarly, a seating plane on the topside of the socket establishes the minimum
package height. See Section 4.2 for the calculated IHS height above the motherboard.
Figure 2-6. Package Installation / Removal Features
alignment
walls
orientation
notch
orientation
post
access
Pin1 triangle
Pin1 chamfer
alignment
walls
orientation
notch
orientation
post
access
Pin1 triangle
Pin1 chamfer
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