- May 19, 2011
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Apparently it's to help reduce PCB stress on insertion/removal.
My first 5000-series build was tormented between installing a bigger HSF than I'm used to (Be Quiet Pure Rock 2), the above oddness (which I assumed must be intentional), and this:

It only showed up at an angle, and the modules are working fine (two runs of memtest86 7.4).