Have you downloaded and run memtest86+ to determine if you have any problems with your memory modules?
Download the appropriate pre-compiled bootable from:http://www.memtest.org/
Make sure your memory modules are set to OCZ's recommended timings and voltage.
Test one memory module at a time first. If any one of the memory modules shows even one error then it's RMA time. You might want to include a copy of the error log when you RMA.
If each memory module passes the tests without any errors then add another to test dual channel stability.
If the dual channel tests passes without errors add the third memory module to test triple channel stability.