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Tight and secure mounting is critical for
good heat transfer between CPU and heatsink. Ease of installation is also important a simple
mounting scheme means less time spent installing, and reduced likelihood
of user error.
AMD mounting clip.
AMD installation is accommodate using a simple tension clip.
An L-shaped lever must be inserted at one end. There are two positions for this L-lever. According to the manual the outer one is for AMD and the inner
one for Intel. This makes no sense since the current Intel LGA775 CPU socket uses push-pins. On the bright side, the clip can be slipped
between the heatpipes, so that the cooler can be rotated 90 degrees on AMD motherboards,
allowing the fan to point in whatever direction is desired. This is a feature that's not as common as it should be, due mainly to the rectangular shape of the AMD CPU mounting area.
The mounting for LGA775 is more involved, requiring free access to both sides of the motherboard. It is similar to previous Zalman heatsinks, quite secure and tight. You cannot install it with the motherboard already in the case.
The LGA775 mounting hardware. Installation on an Intel board involves
a more secure, three step process with a metal clip, clip support bracket
and back plate.
The back plate, as you can guess is placed on the back of the motherboard,
lined up with the mounting holes around the CPU socket.
The clip support bracket is then attached to the back plate using four
long bolts. The bracket was tall enough to clear the short capacitors
on our test board.
Finally a clip is placed over the mounting plate and screwed to the
support bracket. There is a notch in the top of the base to keep the heatsink
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