[time-nuts] 5070B once more.... (actually 5370A fans)

Poul-Henning Kamp phk at phk.freebsd.dk
Fri May 22 18:01:48 UTC 2009


In message <4267588CDD7544D48A9A119584228C0B at pc52>, "Tom Van Baak" writes:

>I'm sure this requires no small effort in thermal engineering on
>their part.

The major part of this effort was to reduce the power usage to
maximize battery lifetime.

>The plot you get is then simply accuracy (or jitter or drift) versus
>air flow. This plot, more than one or more raw temperature probe
>measurements or IR pictures, will tell you what the ideal range of
>air flow is. I have no idea what you'd find. But it would settle the
>question about fan replacement for the 5370.

Its a good idea, but it does not resolve the reliability issue.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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