I recently purchased the MSI P55-GD65 m/b and I'm running the latest 1.8 BIOS. I installed a pair of G.Skill ECO DDR3-1333 sticks which are supposed to be compatible. They are claimed to run 7-7-7-21 @ 1.35V. Using the latest BIOS, I enabled X.M.P. and the machine boots. If I try running MemTest86+, it generates thousands of errors within a few seconds. If I go back to the default SPD of 9-9-9-24, MemTest86+ runs for 10+ hours without problems. I'm interested to hear if anyone else has a similar setup and if it was stable for them. Thanks.