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LGA775 Socket Heatsink Loading
Figure 7-6. Board Deflection Definition
A.2.3
Board Deflection Limits
Deflection limits for the ATX/µATX form factor are:
NOTES:
1.
2.
Thermal and Mechanical Design Guidelines
d1
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
d2
and
d_EOL - d_ref ≥ 0.15 mm
And
and
d_EOL' – d_ref' ≥ 0.15 mm
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