oktavius
Dear friend, did you use the Timing Table Editor in Thaiphoon Burner to edit the SPD? I ask you because the easiest way to change the highest RAM clock in the SPD is to use TTE instead of Thaiphoon’s HEX Editor. Just press F9 and begin changing the first Cycle Time parameter. Than press Next button and select the final step.

Danke sehr! ;-)