Re: [cobalt-users] 450/475Mhz CPU upgrade

["cbtrussell" <cbtrussell@xxxxxxxxxxx>]

> As mentioned in a prior post, the faster CPU speed produces more loading
> on the power supply and results in additional heat that must be
> dissipated.  This can be a significant amount of added heat when the CPU
> is heavily loaded.  The stock Raq3 heat sink is marginal for operating
> at 500 mhz.  As a minimum make SURE that you use heat sink compound
> between the CPU and the heat sink.  For use in a warm environment I
> would strongly recommend either a physically larger heat sink or one
> with fan cooling.  Because of the 1-U form factor, you need a
> specially-designed cooling fan that resembles a small sideways turbine
> blower.  A normal heat sink fan would be totally blocked by the cover
> and wouldn't move much air.
>
> Keep an eye on the CPU temperature, particularly when the CPU is loaded.

GREAT job, Jim.

You are hereby nominated for the Most Excellent Post of 2003 award  :-)

Don't worry guys, plenty of time for more nominees, keep 'em coming  ;-)

Brandon

PS - You get bonus points for disclosing the jumper setting for the 5.5
multiplier.

PPS - You get double bonus points for also pointing out a source for a
suitable side blowing fan as you mentioned.

Thanks  :-)