|mmm I would be seriously inclined to really rattle Dell's cage over this. Write to Michael Dell himself and let him know what's going on...? Also contact your local trading standards people (or whatever the US equivalent is) and see what they may do?|
Similarly local (and not so) consumer groups/sections in your local/national newspapers may help?
As regards fixing "wot is amiss" on the MoBo... One would have to know exactly what/where etc. to go; and that could be presumably almost anywhere on the pcb? Are you sure the psu isn't playing up at least on this occasion; check all voltages etc; and maybe it was also a factor with the previous MoBo failure?
I have read of those who when they really start to rattle Dell's (and other similar big names) cage they will often resolve it all - amicably in the end..
Certainly 15 days outside a warranty is not acceptable; and I would really bring that to Michael Dell's attention.
Things is tight out there for all makes; and they can ill do with negative publicity...
If/when you write to Michael Dell, point out that his outfit has enjoyed a high reputation in the past; and naybe suggest that apparently it is now suffering from the arrogance etc. that brought down PanAm, Eastern, and other big outfits, and caused Delta to wobble seriously... All of them forgot about customer satisfaction and service in the not so distant past; and currently Chrysler and General Motors have effectively suffered the same fate?