I use ECC on my servers and workstations. Intel requires a Xeon CPU, but oddly most 'consumer' AMD CPUs support ECC -- the MOBO also needs to support ECC.
To confuse you more there's RDIMM and UDIMM, RDIMM is typically used on systems with ultra-high density aka lots of DIMM slots.
You'll need to RMA your RAM, it won't run.
Here's compatible RAM ->
http://www.crucial.com/store/listparts.aspx?model=T5274&Cat=RAM
note: It's DDR2 RAM and the limit, according to Crucial, is 2GB (2X1GB).