I was playing around with one of my new 3+ DTUs yesterday and have one
comment and one question regarding it.
First my comment: I noticed that as I was testing the streaming media
performance, the chassis got quite hot. Testing my 2FS side-by-side, it
never gets nearly as hot as the 3+. It does get a bit warmer than
normal, but not what I'd call "hot" like the 3+ does. So far, under
normal usage (productivity and development apps), it doesn't seem as
bad. It's still warmer than the 2FS under similar usage, but not hot.
Background for my question: In our lab, we have the DTUs mounted
horizontally under the desktop using aluminum U-channel we cut and
drilled for brackets. This has worked quite nicely with the 2FSs. It
left the cardslots exposed (should we ever want to use them), as well as
the Kensington lock slot. We were also able to use the threaded socket
used to mount the base plate as a point to anchor the DTU to our custom
brackets.
With the new design of the 3+, this presents some challenges. With the
cardslot on the top, in our mounting brackets, we will not be able to
use them. Since we don't currently use them, nor do we have plans to,
this is not a big deal. With the new snap-on base, we've lost our
convenient anchor point to secure the DTU to our bracket. Our plan is
to instead add an L-bracket to the back of the unit and screw into one
of the unused serial port nuts.
And finally the question: The 3+ has two large vents on the side. I
assume these are for airflow to keep the internals cooler, as the unit
runs noticeably hotter than previous models. What is the recommendation
on clearance for these vents? The question is important because it
helps me decide which way to mount them like the rest of my lab.
If we mount them with the vents facing up (towards the underside of the
desk), we would have about .5" of clearance. If this is not enough,
then we would obviously have to mount them with the vents facing down
(towards the floor). The drawback here is that we no longer have access
to the Kensington lock slot. This is probably not a huge issue, since
if a unit was stolen, the thief would not be able to do anything with
it. But it would still be nice to secure it if possible.
Thanks in advance for your input.
Seth
--
Seth Galitzer
Systems Coordinator
Computing and Information Sciences
Kansas State University
http://www.cis.ksu.edu/~sgsax
[email protected]
785-532-7790
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