This causes all manner of posts and questions but the bottom line is simple. The memory stick is not compatible with your system.
I purchased a stick of sd/ram 256mb from ebay, for a desktop with intel desktop board 0815EEA before I put it in I checked what belarc what memory their was: slot DIMM1 has 128mb slot DIMM2 has 128mb, after I put it in I checked belarc again it said: slot DIMM1 has 128mb slot DIMM2 has 127mb slot DIMM3 has 64mb. Where has the rest of the 256mb gone. Also I noticed it had a copper fitting whereass my other two have a tin fitting could this cause problems later and if so how much later?