On 1 Jun 99, at 10:48, Roberto Safora wrote:

> 1- What is the main difference between sleeve and ball bearing fans?

  Sleeve bearings are little rollers -- they only turn on one axis.  This makes
them cheaper to produce than ball bearings.  In theory, a single axis of rotation
is sufficient.  In practice, every fan I've ever had seize up and stop working has
used sleeve bearings....

> 2- Traditional fans could work on i Celeron pga370?

  Probably not.  Most "traditional" CPU fans have a ridge, frame, or fastener
that extends down over the edge of the CPU package, and so must exceed (but
not by too much!) the size of the package itself -- different for each socket
type.
  I *do* have a few old 486 fans around which rely on a dual-sided adhesive
pad to attach to the CPU.  These would physically fit, but

  (a) I'm not sure that they provide enough cooling for a Celeron, even at
its reduced voltage, and

  (b) The thermal conductivity of the pad is probably lower than one would
like.

  You may be able to find a Pentium/6x86 fan that uses such a pad, and it
might be sufficient.


David G

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