My apology for the extra poor English grammer in prior post
that I just posted. Also, knowing that BobZ's defences will
very quickly and strong spring up after reading my post,
hopefully Bob will realize that its just info to be absorbed
or dumped without any personal attack contained within.
... plus I'am still doing a WAG that the hardware is flaky
becuase of a heat buildup somewhere in the hardware
that has itself isolated from the flow of the fan's currents.
But then I already posted that in a recent post that was ignored
by both Bob & Matt, as a simple "what if" lets try extra fans
to see if the problem by majac disappears.
But then Matt was clue me in that the bug happens when iHub
is at a low usage, thus less heat generated.
Yes, but low usage and less heat means the fans rpm lower,
and that changes the flow of air "paths" aka turblance things.
So, simple answers ain't real answers.
doug