On Mon, 29 Aug 2011 22:59:32 +0200
"Guillaume G." <[email protected]> wrote:
> On 08/29/2011 08:39 PM, Attila Kinali wrote:
> > But a little warning here: The Solos card gets quite hot. Putting it
> > into a thermally challenged device like the net5501 (aka a device that
> > has no thermal design whatsoever) will get you into trouble if you use the
> > standard case without a fan.
>
> FWIW, I'm using one in the standard net5501 case (no fan) without any
> issue so far. However, my case is installed vertically to maximize
> convection cooling (the temperature difference being very significant
> compared to the regular horizontal setup that was quite hot, indeed).
This is exactly what i mean. You need to put the net5501 up, so
that you get a chimney effect to get it enough cooling, while the whole
case is made for _horizontal_ placement.
For the first tests i did, i just mounted the harddisk (w/o any other
compontents that might produce heat) and the net5501 got already way
too hot (>50°C inside tempereature) when i closed the case. The only
way to run it "cool enough" was to leave it open. And if you have a look
at the case, you can easily see why this is the case: No venting holes
at the top and only two small rows on the sides. The holes at the bottom
are completely covered by the PCBs and thus completely useless (beside being
way to few). I'm really wondering how anyone of some electronics design
knowledge could think that this is enough to get >10W of power out of a case.
And i'm not yet talking of the of the other problems like having
no space to drill holes for the TNC connecters which are sold for
the wlan cards (not for even one, let alone for two), or that
the "normal" power supply is too weak and leads to unpredictable errors,
or that the only available documentation is a _user_ written wiki of which
most stuff are half guesses, half collection of posts on this mailinglists, etc
Compare this to what you get for the alix boards from PC engines.
Full documentation, including the schematics(!), cases with pre drilled holes
for the antennas, and foremost: No overheating!
And unlike soekris, PC engines answers your emails when you have questions.
(I'm still waiting for an answer to the mail i send to the customer support
address over a year ago)
Before you ask, i bought a net5501 because i needed a board with
PCI slot and 3 Network interfaces, which PC engines didn't have.
And i was blinded by the "full OSS support" that soekris claims to have.
So i bought one without checking whether there are any known problems
(ok, the thing with the power supply was all over the mailinglist
so i saw at least that) and didn't check the documentation either, as i
thought i'd get a box with a CD or a booklet or something (at least the
price is high enough that you could expect something like this).
Attila Kinali
--
Why does it take years to find the answers to
the questions one should have asked long ago?
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