Thermal/Mechanical Specifications and Design Guidelines
35
LGA1156 Socket and ILM Electrical, Mechanical, and Environmental Specifications
5
LGA1156 Socket and ILM
Electrical, Mechanical, and
Environmental Specifications
This chapter describes the electrical, mechanical, and environmental specifications for
the LGA1156 socket and the Independent Loading Mechanism.
5.1
Component Mass
5.2
Package/Socket Stackup Height
provides the stackup height of a processor in the 1156-land LGA package and
LGA1156 socket with the ILM closed and the processor fully seated in the socket.
Notes:
1.
This data is provided for information only, and should be derived from: (a) the height of the socket seating
plane above the motherboard after reflow, given in
, (b) the height of the package, from the
package seating plane to the top of the IHS, and accounting for its nominal variation and tolerances that
are given in the corresponding processor datasheet.
2.
The integrated stackup height value is a RSS calculation based on current and planned processors that will
use the ILM design.
5.3
Socket Maximum Temperature
The power dissipated within the socket is a function of the current at the pin level and
the effective pin resistance. The key temperature limit for the LGA1156 socket is:
• Socket contact interface with package < 100 °C.
Table 5-1.
Socket Component Mass
Component
Mass
Socket Body, Contacts and PnP Cover
10 g
ILM Cover
29 g
ILM Back Plate
38 g
Table 5-2.
1156-land Package and LGA1156 Socket Stackup Height
Component
Stackup Height
Note
Integrated Stackup Height
(mm)
From Top of Board to Top of IHS
7.781 ± 0.335 mm
Socket Nominal Seating Plane Height
3.4 ± 0.2 mm
Package Nominal Thickness (lands to top of IHS)
4.381 ± 0.269 mm
Содержание BX80605X3440 - Quad Core Xeon X3440
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Страница 26: ...LGA1156 Socket 28 Thermal Mechanical Specifications and Design Guidelines...
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Страница 80: ...Mechanical Drawings 80 Figure B 1 Socket Heatsink ILM Keepout Zone Primary Side for 1U Top...
Страница 81: ...81 Mechanical Drawings Figure B 2 Socket Heatsink ILM Keepout Zone Secondary Side for 1U Bottom...
Страница 87: ...87 Mechanical Drawings Figure B 8 Heatsink Compression Spring...
Страница 88: ...Mechanical Drawings 88 Figure B 9 Heatsink Load Cup...
Страница 89: ...89 Mechanical Drawings Figure B 10 Heatsink Retaining Ring...
Страница 91: ...91 Mechanical Drawings Figure B 12 Heatsink Backplate...
Страница 92: ...Mechanical Drawings 92 Figure B 13 Heatsink Backplate Insulator...
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Страница 106: ...Package Mechanical Drawings 108 Thermal Mechanical Specifications and Design Guidelines...