so im building a new PC and the mobo wont detect the RAM, the mobo is an intel DG41RQ and it beeps 3 times, meaning "no memory". i think this is because of RAM not being fast enough, the MOBO supports 667 and 800mHz and the stick i have says "1GB 2Rx8 PC2-4200U-444-12-E3" on it. so is this why it wont boot? should getting a stick of 667 or 800mHz fix this?