On Wed, 07 May 2003, csj wrote:
> Do 7200 rpm hard disk drives have any special cooling
> requirements? I have a box that's running a 20 GB 5400 rpm HD
> fanless without any problems. Can I simply slap on a 7200 rpm HD
> (either a Seagate or Maxtor 80 GB) on the same box? I don't want
You can always buy a 3 1/2" to 5 1/4" drive adapters, which allows
plenty of air space around the drive. Personally, I would be a tad
worried about stacking several highspeed, large capacity drives in
3 1/2" bays.
Otherwise, as long as you have proper air flow through your case, you
should be fine. For most cases, the front case fan should be near the
bottom and flow into the case, the rear case fan should be behind the
processor (on a typical ATX board) and blow out of the case. I have
been told (but haven't tried) to keep 10 CFM more air blowing into the
case then blowing out, and then filter the intake fans, to prevent dust
from building up inside of the case. Remember to verify that your HDDs
aren't located in a "hot spot" inside of the case.
Of course, the best way to figure this out is to grab a copy of burncpu
and write a script that writes/reads a file to the hdds, hook up the
fans, close the case, and then monitor the temperatures. Repeat for any
fan combinations you want to test. Remember, a larger fan at lower rpms
will move the same amount of air and be quieter then a smaller fan at
higher rpms.
In the end, it depends on what temperatures you are comfortable with.
--
...crying "Tekeli-li! Tekeli-li!"... ~ HPL
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