OPB's CDT-iv DOES work as a tweak
but the problem is, is it possible to achieve an incredibaly fast 12min39s @ 3.6G DDR2 1230 5-5-4-5?

using opb's CDT-iv tweak, it should easily do 12min30s with DDR3 1700ish 6-5-5-15 or DDR3 2000ish 8-6-6-x last but not least,
is it possible that result is achieved at a higher clock and the clock is detuned later to 3.6G?