I have this same problem. I have the sli certified xms2 with EPP and my timings were detected as 5-5-5-18 instead of the maximum rated 4-4-4-12. i have a gigabyte M59SLI-S5 board but i dont know how to use the EPP's. i manually changed my timings but i find that this defeats the purpose of EPP. i think that my mainboard is supposed to support EPP but it says that sli-ready memory was not detected. someone help please