Heat-sink as add-on?

[peterz]

Until the heatsink options are available, I was considering buying some approx 9x9x for the USB chip:
http://www.ebay.com/itm/20pcs-Aluminum-H...1879440839

Then, for the RAM/CPU, I was thinking something like this might be nicer than lots of smaller heatsinks:
http://www.ebay.com/itm/1Pcs-50mm-x-48mm...1058620079

My goal is to use ~20 of the 2GB versions as a spark/hadoop cluster.

When I get done assembling them, I wanted to put them in either a single, or modular case to tidy it up, plus help direct airflow with a few fans.

For the HDFS, I also was planning on getting some higher performance microsdxc modules, with specs like this or better:
http://www.amazon.com/PNY-Turbo-Performa...B00W77C1QU

Thoughts?

References:
http://wiki.pine64.org/images/2/2e/Pine6...atsink.png
http://files.linuxgizmos.com/hardkernel_...detail.jpg

I personally would rather see some big heatsink covering all 4 chips (with no fan if possible).
But somebody on this forum wrote height of all 4 chips is not equal.

Tllim is working with some vendor on making a heatsink.
http://forum.pine64.org/showthread.php?t...t=heatsink
http://forum.pine64.org/attachment.php?aid=55
http://forum.pine64.org/attachment.php?aid=56
http://forum.pine64.org/attachment.php?aid=57

Here is a enclosure for Raspberry PI made from aluminium with "cube" which connects enclosure body and surface of CPU. That might be the best passive heatsing from all the options (once are dimensions modified for PINE64).
http://raspi.tv/2014/the-flirc-case-for-raspberry-pi-b