[iyonix-support] Re: EtherK not starting up reliably
- From: John Ballance <jwb@xxxxxxxxxx>
- To: iyonix-support@xxxxxxxxxxxxx
- Date: Mon, 31 Jul 2006 15:47:37 +0100
Hi
In message <18f6f64e4e.peter@xxxxxxxxxxxxxxxxxxxxxxxxx>
Peter Bell <peter@xxxxxxxxxxxxxxxxx> wrote:
[snip]
> >
> > what speed does that then show?
>
> 1000Mbps Full Duplex
>
> > and also, as James asked, what effect does resetting the switch or
> > disconnecting/reconnecting the network cable have?
>
> Disconnecting/reconnecting the cable appears to have no effect. Perhaps
> I should try plugging into a different port on the switch. Certainly,
> another port on the switch remains connected at Gbit rate.
>
> However, the problem appears to have vanished as suddenly as it arrived.
> Having had the problem more or less every other day, it hasn't happened
> for over a week now! The first time it occured was after the machine
> had been powered up for over eight hours. Subsequent occurences were
> always apparent immediately from power up.
>
> >
> >
> > > >
> > > > Is this a sign of the psu starting to go out of spec?
> >
> > I also think unlikely.. but a quick check of the psu with a dmm might
> > be illuminationg .. basically a 5v rail (red to black on a spare hdd
> > connector) which shows less than 5.04v would suggest a power supply
> > that is no longer behaving as it did when shipped.
>
> Okay - fault not currently in evidence, but the 5V reading is 5.08V.
> What is the typical/lowest reading you would expect to see on new
> device?
power supplies as shipped provide 5.04 to 5.07v (stable, and depending
on DMM) under almost all load conditions. A reading of less than 5.00
indicates a psu that has ceased to behave in its intended manner....
John
>
> [Snip]
>
--
John Ballance
CTO Castle Technology Ltd
jwb@xxxxxxxxxx
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