OCZ programs the EPP that CPU-Z reads. If they programmed them incorrectly, all CPU-Z will do is report that bad information. Notice that the Voltage as well as the tRAS are different. But, it could be that the EPP is correct.
If you can get them to work at 5-5-5-15 and 2.1V then run that way. Be aware you may have to back off to 5-5-5-18. The website says the V is 2.1-2.2V, so start at 2.1V if things are unstable move to 2.2V.