I run a hacked Cisco NSLU2 ("Slug") NAS as a File, DNS, DHCP and HTTP Server here at home.
It is currently running Unslung (V2.3R63-uNSLUng-6.8-beta) from http://www.nslu2-linux.org/
I've had it since about 2006 and a little while back it failed showing no lights and it would not boot.
The power supply was ok with a healthy 5.3V but nothing I could do would coax it back to life.
Fearing that I would have to give up on it - I took it apart using instructions here: ??? Where are they ???
And found the following:
You can see that the two electrolytic capacitors on the right have blown. Their caps are slightly curved outwards. A quick trip to Maplins (www.maplin.co.uk) and a bit of soldering and they now look like this:
Re-assemble, apply power and all is well.
I'm just posting here in case anyone has a similar issue. It would be a shame to throw such a great little ARM computer just because it succumbed to a faulty batch of capacitors.