HP a810n cooked northbridge
It's my wife's old desktop & runs Win XP SP3. It began to lock up mid task, no response to input devices , last display intact. Restart usually but not always worked. I discovered the Northbridge chip's heat-sink in the bottom of the case. I bought some heat-sink cement and re-glued it. That only extended the runtime to 1st failure. I was able to copy off all "My documents" & Mozilla profiles off it for her new Vaio laptop. I'd like to revive it to preserve the Canon Lide 30 support(no Win Vista or 7 drivers exist for it) The Salmon MB is still available, mostly refurbs, for $69-240. I think I can get an AII x2 CPU, MB, 2-4GB DDR2-3, CPU cooler, and a PCI PATA card(I've seen no AII compatible MB with 2 PATA connectors, the a810n has 3 PATA devices) for ~$150-200 from either Microcenter or Tigerdirect who both have "local"stores and that'll stretch its usefulness for other things as well. I'm wondering if the power supply will handle it.
One of these http://www.tigerdirect.com/applications/category/category_tlc.asp?CatId=31&name=Barebone-PC-Kits& install XP as OS and skip one of the PATA optical drives.