[Soekris] Soekris 5501 with Many Errors Using Metrix miniPCI 802.11
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Jan 14 13:59:54 UTC 2008
In message <478B3D5E.5060802 at psg.com>, Randy Bush writes:
>I attempted to better shield it. A full description with pretty
>pictures is at <http://rip.psg.com/~randy/5501-abg.html>.
First off, the motor in the disk is not your only worry, the
head/voice-coil throws significant magnetic fields around as well.
A simple test with the SATA disk over the mini-PCI or away from it
should be able to tell you if that is indeed the path of trouble.
Other potential causes:
Power supply noise when the disk operates.
Radiated noise from cables (Wrapping in alu-foil may make it worse
if you cannot get good grounding for the foil)
--
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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