This is what killed my webserver a couple of weeks ago. The black plastic rectangle is the mounting framework for the cpu cooler, which is held by spring-loaded clips flush against the cpu. The plastic pegs which held the mounting framework to the motherboard snapped on one side, which caused the cooler to separate from the cpu and in turn caused the cpu to burn out, probably taking the motherboard with it. Anyone want the machine? $20 and it’s yours, including some RAM and a few other random parts, including a nice small form factor Biostar Ideq case very similar to this one.