http://www.goldenram.com/support/ecc.asp
i think that ram could be so cheap is because of the '15 days warrenty'(it is really danger in that case better dont choose that)
i adviced you to get the kingston 512 mb ddr!!
you can get a cheaper one at here
http://www.newegg.com/app/SearchProd...ult.asp?DEPA=0