Board Deflection Limits; Figure 7-6. Board Deflection Definition - Intel E1400 - Celeron 2.0GHz 800MHz 512KB Socket 775 Dual-Core CPU Design Manual

Design guidelines

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LGA775 Socket Heatsink Loading

A.2.3

Board Deflection Limits

Deflection limits for the ATX/µATX form factor are:

NOTES:

Thermal and Mechanical Design Guidelines

d'2

d_BOL - d_ref

0.09 mm

d'_BOL – d'_ref

0.09 mm

The heatsink preload must remain within the static load limits defined in the processor

datasheet at all times.

Board deflection should not exceed motherboard manufacturer specifications.

d'1

and

d_EOL - d_ref

And

and

d_EOL' – d_ref'

0.15 mm

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