Quote Originally Posted by Fr3ak View Post
hehe 5-4-3 didn't work. 5-4-4 was as low as I could go with 750 MHz.

Maybe better timings work with less clockspeed.



I am using a Asus Blitz Extreme. I already figured out that more VMCH helps a lot. Unfortunately I am really busy right now and only have a few hours in the evening to bench. But by that time I am quite exhausted and not really in the mood to use a computer any longer, which is why my progress is rather slow. I am planning to bench a lot more at the weekend The memory surely is nice, but the mainboard is giving me a hard time I don't think Asus engineers didn't think of running 900MHz on the memory when they designed the board. Same for Intel and the chipset
Officially (as stated in all offcial DDR3 motherboard specs) all DDR3 P35 motherboards support RAM with DDR3-1333 as maximum frequency (because default FSB speed is 333 MHz and with maximum multiplier FSB:RAM=1:2 there is DDR3-1333 frequency for memory).

But, with overclock, if you want to go above DDR3-1800-1900 with DDR3 RAM you need a CPU with very high FSB wall (500-520 MHz) and you have to try to raise the North Bridge Voltage, PLL voltage, and FSB Termination Voltage (obviously also vcore and vmem).

I am not so sure about the facts that Asus and Intel engineers didn't think of running 900MHz on the memory when they designed the boards, infact there are motherboards that are able to run memory above DDR3-2000 MHz (like P5K3 and Blitz Extreme). Obviously we are talking about benching sessions and not for daily use (but for daily use you could run for sure at DDR3-1600 or with some overvoltage at DDR3-1800).

I agree about the fact that with these memories it could be better to have a chipset with default FSB of 400 MHz and similar processors able to run at 400 MHz as default.