Hardware Reference
In-Depth Information
Figure 3.48
shows the design used on most Socket AM3+, AM3, AM2+, AM2,940, 939,
and 754 processors, featuring a cam and clip assembly on one side. Similar to the Socket
478 double-cam assembly, this design puts 75 lbs. of force between the heatsink and the
processor. Bowing of the motherboard is prevented in this design by the use of a special
stiffening plate (also called a
backing plate
) underneath the motherboard. The heatsink
retention frame actually attaches to this plate through the board. The stiffening plate and
retention frame normally come with the motherboard, but the heatsink with fan and the
clip and cam assembly come with the processor.
Figure 3.48
Active heatsink and cam retention mechanism used on Socket AM3+,AM3, AM2+, AM2,
940, 939, and 754 processors.
