There are a few things that can go wrong with old ATX PCs but a swap of components can often fix them. Here’s your chance to swap a dead/old motherboard with a new/live neo-ITX mogtherboard sporting an ARMed processor and Android/Linux. All you need is a screwdriver, dexterity and $64.99 ($59.99 in USA). You can help your environment, too. No fans on this baby unless your PSU needs one.
OK, 800MHz is a bit from the last decade, but if you’re not in a rush, you can do a bit of browsing or run some nice app in 512MB. Besides plug-compatibility, neat features of these units are 4 USB ports, a VGA and an HDMI port. It even has a microSD slot. Surely you can do something with them, like feed images to your FaceBook/Blog site or use them as thin clients.
See APC, the manufacturer.
I am not sure I have any dead-motherboard-*TX units laying around. I may have to do some dumpster-diving or pay some kid to do it for me…