My test result :
Patriot DDR2-800 Signature line 5-5-5-15
DS4 F5 Offical
E6300 LBA627A

Patriot SL :
4-4-4-10 2v 930MHz
5-4-4-12 2v 985MHz

DS4 F5 + E6300 :
266x7 1.225v Stable
460x7 1.235v Stable
480x7 1.325v Stable
530x6 1.355v Stable