Conclusion: Goldbr1ck tried to help over PM but we were unable to determine what exactly was causing the low hdd experience index score in Win7 x64 build 7000.
Altho I ran 3dmark 06 there and got 101xx as opposed to vista64's 107xx.

Everest hdd benchmark 1 MB linear read was giving 168 MB/s avg, very close to the raid-0 raptors from Goldbr1ck, so I guess its just a fluke in the performance rating system of Win7.

Anyway, I ran into a bigger issue yesterday, and wanted to ask has anyone experienced this as well. What happened was a complete shutdown of the system out of the blue, while chatting in miranda, there wasnt any storm outside, I didnt accidently pull out the power cable or pressed the extension power cable switch with foot, it just came like a phantom. This board is running for a year now and half of that period the system is overclocked like in the sig, it never happened before untill yesterday.

Anyone ever experienced this? It happened on xp32 sp3 if it means something.