Ram timing problem

According to the specs on newegg you want:
Tcl - 5
Trcd - 5
Trp - 5
Tras - 18

Be sure to set the vdimm to at least 2.1v, possibly 2.2v before trying to boot at these settings. The timings that are set when you initially set to 1066 should be ok, a lot of DDR2 needed at least 1.9v to be stable especially at higher clock speeds, if you haven't changed the voltage settings you are probably running 1.8v and that could be your problem.
 
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