On Tue, 27 Jun 2006 08:25:13 -0500,
wrote:
>> http://www.tomshardware.com/2005/12/...es/page11.html
>
>How is it compared to Antec's cooling. That's the biggest concern: cooling especially when my
>room gets like 90F degrees.
I'm sure it cools great, after you cut out the front and
rear fan grills that is (replacing with round grills if
necessary, which would be a very good idea at least for the
front mounted fan).
Even better with the integral water cooled, though at $350
it is more than a little beyond your target price.
Let's go over the basics of how to assess a good case for
your needs:
Rear 120mm exhaust fan. No stamped-in-metal grill on it,
only a minimal rounded wire grill if anything. A thicker
fan (38mm for example) will do better than a 25mm thick, but
seldom do cases come with 38mm thick. If you were to
puchase one the 38mm thick is the better choice but it
should still be acceptible with 25mm, particularly with good
front intake area.
Bottom front fan(s), also with minimal intake area
restrictions (no stamped-in-metal grill, no filter panel, no
perforated metal mesh). That is, you could have these
impedances to flow but it will require more fans and/or
higher RPM to move same air, and necessarily more noise per
flow rate. If the environment were dusty and you didn't
mind noise, the filter would be preferrible over the other
options though for best result the filter area should be
maximized, not just a panel that snaps onto the fan frame.
By "fan(s)" above I mean that a single 80mm is likely not
sufficient, perhaps if it were very high RPM but still it is
the less optimal alternative. Multiple 80mm fans would
work, possibly 1 92mm fan though again at your anticipated
temps, it is borderline unless you accept high RPM (noise).
As with the rear fan, a thicker fan will be better but many
cases don't have enough clearance in front for much thicker
than 25mm. The best configuration for cooling is at least 2
x 92mm fans, because 92mm is narrow enough that the entire
*exhaust* from the fans can be kept in the space of the
drive rack, channeled by the rack so the entire airflow
passes through it. 120mm would be the lower noise option
but it is not reasonably possible (not with any stock cases
at least) to adapt the 120mm width down to the width of the
drive rack so all the flow goes through it.
It isn't necessary to have ALL the flow through the drive
rack, but it is optimal to get greatest benefit from any
given amount of airflow. The system you build could still
be relatively quite with forethought, even in ~90F ambient.
After having the bottom front and mid-top rear chassis fans
considered, you have to assess the adequacy of the heatsink
you choose, for both CPU and video. Additional
consideration of whether you would overclock and how much,
would be made. If these 'sinks are not enough on their own
you will need to add side fans or ducts in the side panel
across from the hot part(s), just be sure that if you do,
you have a reasonable front pusher fan to force enough air
through the drive racks.
Many cases come close enough to this already, but so long as
you don't buy a cheap (flimsy, thin-walled) case, having the
case ahead of time can allow modifying it as needed. Older
large ATX cases are particularly good for this purpose as
they may start out with horrible airflow but they have large
solid paneling that is thicker than typical today. IOW, if
you grabbed a random 1996 ATX case from Gateway, HP, etc,
you may be able to fit a 120mm in the front and at least a
92mm if not 2 x 92mm or 120mm in the rear. 120mm in the
rear was more difficult with most due to the cases being
slightly too narrow but I've done it to a few HP cases (I
forget the model #s though).
With several fans and/or the possibility of needing higher
RPM, the thing to avoid most is thin walled aluminum cases.
Aluminum is less rigid at same thickness as steel so you
might find increased noise with 1.0mm thick aluminum or
excessive noise with 0.8mm thick. Personally I completely
avoid 0.8mm thick Al, unless it is a very small case as the
smaller the panels are on it, the less they will vibrate
with any given fan installed. Fan isolation grommets,
plugs, mats, etc, can help but in some cases they also
reduce flow rate some and may increase the turbulent noise
if the fan isn't low-RPM.
So in short, pick a case with the largest fans you can in
the bottom front and mid-top rear and make sure those have
unobstructed grills. Add fans to side panels if the
measured component temps are too high.