We've often sung the praises of having your own home server for quiet backup, torrenting and other services. But, if you don't want to build a new computer, DIYer Darknezz shows us how he put together a home server out of nothing but a broken laptop's motherboard.
The laptop used for this particular project was in mostly working order, but was having trouble outputting a signal to the laptop's screen. After replacing the motherboard, Darknezz kept the old motherboard -- which otherwise worked fine -- plugged it into the wall, gave it an external power button, and turned it into a seriously quiet, low-powered home server. Of course, you'd probably want to put it in some sort of casing, but it's amazing what you can do with an old broken part. Hit the link to see more.
Laptop Motherboard Reborn as a Low-Wattage Server [Hack a Day]