ARCTIC made a mistake in the instructions for this section, in relation to the size of the screws – mixing up Screws (A) with Screws (B). The four long screws in the bottom of the image above should be used for the middle four holes, as they are able to reach the raised block. The remainder of the smaller screws are used in all the remaining positions.
Be sure to use the supplied cardboard spacers between the head of the screws and the PCB. This will help to stop any potential shorting problems when you boot the system.
We advise you to attach a screw first on either side of the card without screwing any of them in tight. This allows for fine adjustment of the positioning until at least 4 or 5 screws are in place on either side.
When they are all in position, then tighten in place moving from one side of the card to the other in turn. This negates excessive pressure on one side of the PCB at any given time.
There is no need to overtighten these, so don't overdo it.
The cooler is much larger than the GTX690 PCB, so it overhangs along the top edge as shown above.