hi i`ve just tried installing some kingston value ram (2x1gb pc2 5300 - kvr667d2n5k2/2g) into my asus p5b mobo. this is my first time doing this so i don`t want to break anything, but i can't slot the ram into place it'll fit in the socket but it won't slot in properly and i can't close the locks! should i push harder or does my ram just not fit?