DDR3-PHY-CTNX-US DDR3-PHY-CTNX-UT DDR3-PHY-E3-U DDR3-PHY-E3-US DDR3-PHY-E3-UT DDR3-PHY-E5-U DDR3-PHY-E5-US DDR3-PHY-E5-UT DDR3-P-XO5-US DDR3-P-XO5-UT