I have a question and in fact I still don't have an idea what is the solution.

My E8200 does 505x8 Prime Stable (Small FFT) but failed Blend after 30 minutes.
When I do a Blend for 505x7.5, it works perfectly fine.

Now, what's wrong? it looks like the RAM, etc can run 505FSB stable because on multiplier 7.5, every tests (Small FFT, Blend) passes but the moment I use default multiplier, it is screwed.