"Tim Watts" wrote in message
...
Steven Campbell wrote:

I have a Netgear Switch (GS108) that has been running 24/7 for around 8
years.

I have one of those.

The other week it stopped working with all the lights lit up but no
activity going through it.

On searching the web for any clues I came across 1 or 2 posts referring
to
"dodgy" power supplies. So before binning the switch, I swapped the power
supply for another Netgear one.
However the original power supply was 12V and the one I was trying was
only 5V. To my astonishment it worked.

So I ordered a new 12V exact replacement for the original power supply.
It
arrived today but the switch is exactly the same. The lights all light up
but no activity.

I can't understand what the problem is?
The switch is marked 12V, the original power supply and replacement power
supply are both 12V but they don't operate it.
Yet the 5V power supply appears to operate it just fine.

Will I be damaging either the Switch or the 5V power supply by using them
together?
Anyone know why the 12V power supply isn't able to work it correctly even
although it is certainly able to power it?!?!

Cheers.

Not sure. But I did have something like your problem happen - got it
swapped
under warranty, so I never investigated it.

I *would* have thought most of the logic is expecting 5V or less. Perhaps
the internal regulator has gone short circuit - in which case, I'm quite
surprised it hasn't fried. Unless the regulator has gone to some
intermediate state of dodginess?...

If it's a bin it job, but a 5V supply seems to work, I'd go with that -
but
monitor it closely for a day and see if anything smells hot.

Cheers. I've been running it for the last week with the 5V power supply and
all seems fine. I just didn't want to fry the power supply as its for my
Netgear Access point that I'm not needing just now.