@dr_bowtie, i've drop my speed back to this as shown on pic. It is i think the best. I'm stressing it atm so the voltage should 1.404 or abit more or less. As for all the previous settings i've change back then, i've reverted it back to auto so we can start again from the last overclocked safe and stable settings. =)
Well, you say fine tune the memory is the main aspect of overclocking to get high clocks with low voltage. Please guide me through. I'm not very good with the rams but do have some knowledge about it. Do be aware that my brissy is with Steppings 1 and revision BH-G1 so I've heard on my side that it takes alot of voltage to hit high clocks compared to the 2nd revision so I'm not sure about the voltage that u said but lets work it out together.
Again, thanks for your advice you've given.
In regards to your CPU-Z screenshot, your memory frequency is probably being overclocked above stock after you go passed 235HTT. For testing purposes I would run the memory at DDR2 533 for now. Bowtie pretty much posted the settings you need to run for the trc, trfc and the a-sync(the important ones).
Make sure when your Memtest86 that your running tests 5 and 8 each for at least an hour.
Another thing you might want to do is isolate the maximum HTT of your motherboard. You can easily perform this by dropping the cpu multiplier and raising the HTT incrementally by 5-10HTT. If you decide to raise your chipset voltages please keep an eye on your temperatures. This process will tell you whether or not your chipset is holding you back.
Hope this helps