On 10 Mar 2005 08:37:08 -0500,
supposed to be space above the fan, between it and the casing... your
pictures cannot make it clear whether there is any space.
As long as there is a place for air to come from under the fan and a
place for it to go above the fan, then you're getting airflow. I
feel about the same dissipation blowing out as when the smaller and
much higher RPM fan was in it. It's working great. If Chan wants to
do it your way, great. I just hope he has the kind of time you do.
It takes a lot of time to do it? Hardly, refitting new fans
is a fairly routine thing though usually on old equipment
rather than new.
smaller since airflow would be compromised" is quite premature. On
the contrary, just about any fan you put in there is going to make
marginal difference (compared to a different fan) until you devise a
method to remove that heat from the casing itself rather than just
recirculate it inside. Otherwise it's not a matter of trying to get
same flow rate, only a matter of keeping device cool enough. If
they'd used a casing with more ventilation holes it's quite possible
an entirely passive heatsink couldn've been used instead, as most
modern consumer-level switches/routers/etc don't have one.
I think YOU'RE premature for posting here since you haven't even
replaced one of these.
Sure, I've never seen a fan before let alone a device that
uses them, LOL. Pull head out of arse and look around, the
only thing unusual about this particular fan swap was
figuring out how to get the plastic case open.
The point of it was to reduce the noise to a
whisper while giving at least the same heat dissipation as the
original fan and I've done that.
Oh? Did you take temp measurements? Do you know the
thermal margins of the chip so you'd even know if trying to
match the original spec is important, rather than trying ot
match the actual needs of the device? This isn't a knock
against you as much as the original engineers of the device
(or the penny-pinchers who changed the design) so it ended
up sub-optimal to begin with.
Who knows if using a slower version
of same original-size fan would be enough to keep the box from
overheating.
I do but that's beside the point?
They don't have a nuclear fusion reactor in there, as I
wrote previously it should be cool enough with only a good
heatsink as plenty of other brands have demonstrated.
I wanted to get this right the first time and move on.
Replacing the fan with the same flow rate fan, but larger, has worked
perfectly. It's been running for a week now with no problems.
You did fine for the first time. Having been dealing with
different size fans for so long that I can't even remember
where they all are (brand new), I have a different
perspective. What you did do right which many do wrong is
choosing a thicker fan. 10mm fans are too thin for
longevity due to a decent dual bearing (or long sleeve)
practically requiring 12-15mm thickness.
I don't have time to sit and try different fans to cool this thing in
the best possible way. I just wanted to get rid of the irrating
noise without it overheating, in the least possible time, just like
most other buyers of this unit.
I can appreciate that, and yet I was also mentioning my
experiences with this... there's more than one way to get
the job done and I've done it several ways on different
equipment. Happen to have an old Lantronix unit just thrown
onto the to-do pile that needs one replaced too.
If nothing else we can see that there are multiple choices
and it hurts nothing to discuss them all.
And by the way, I didn't solder the my wires together at all. There
is no strain at all on the wires in this thing, so simply twisting
them together well and using some black electrical or rubber tape
does the trick. I don't think they'll be coming lose until this
thing is recycled or in a landfill.
Maybe not though electrical tape has a way of degrading and
leeching black goo over time, especially in a warmer
environment. I'd always advise soldering and heatshrinking
or crimping the wires, else putting a mating connector on
each which is fine if you happen to have the connectors but
possibly excessive if not.
I'm a perfectionist too, but only to a point. I've learned where to
draw the line and not to f-around so much. I've definitely spent way
more time posting here than it took to ever fix this LinkSys switch
issue. It's not a big enough deal to continue the conversation.
Ok. I may've been too critical with my comments, but one of
the points might've been that it's not so necessary to try
and match the original fan's flow rate. In these types of
applications a tiny bit of airflow goes a long way.
