Corsair TWIN3X2048-1800C7DF --> Setup & OCing on P5K3-D, P35T-DQ6 and Blitz Extreme!!

[bachus_anonym]

Oh man, I cant wait, I simply cant wait for the prices to come down. I am dying to get that kit. Good job corsair Bachus can I ask a question? What kind of FSB speeds do we need to fully take advantage of 1600+ DDR3 memory?

Thank you! Well, naturally 1600MHz FSB (400Mhz) is currently the lowest bus speed you can run DDR3-1600 memory at. It's not very easy to determine if higher bus speed gives an advantage when you're trying to stay at the same CPU speed. E.g. for DDR3-1600 you could run either 400MHz FSB at 1:2 ratio or 480Mhz FSB at 3:5 ratio. However there is no way you can keep the same CPU speed at those above mentioned FSB speeds - 400x9=3600MHz and 480x8=3880MHz or even 400x7=2400MHz and 480x6=2880Mhz. That makes apples-to-apples comparison not quite possible. But if one has a CPU that maxes out at 3600Mhz and DDR3 that pulls DDR3-1800, I would naturally prefer 450x8 at 1:2 (resulting in e.g DDR3-1800C7) rather than 400x9 at 1:2 (that is DDR3-1600C7).

Very comprehensive thread. :thumbup:
So reading that small table of IC's, would GTT be the bee's knee's?

Well, time will tell if this will be a material for another "what's better - D9GMH or D9GKX" that some enthusiasts have been asking in regards of Micron DDR2 chips.

Very nice thread... I got my kit in the other day and have spent a few hours overclocking them on the ASUS P5K3 Deluxe... You can see some sandra benches here: http://forums.legitreviews.com/about11208.html

and I lost my title of 'Legit Reviews' -- I'm just a 'Registered Member' now?!?!

Looks pretty good to me... As for your title, I'd shoot a PM to one of the admins - e.g. njkid32. He'll be happy to help you!


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One thing I'd like to mention to those of you interested in playing with tRCD and tRP is that a vast majority of 1800C7DF and 1600C7DHX should allow to tighthen those timings to tRCD=6 and tRP=6 without a voltage bump. However we decided not to make it an official spec and leave up to you to mess around with it


Asus P5K3 Deluxe ------------------------------ Gigabyte P35T-DQ6
24hrs SP2004 - DDR3-1800 7-6-6 @ 2.00v ------------- 24hrs SP2004 - DDR3-1800 7-6-6 @ 2.00v


At those lower latencies there is a few seconds to gain in e.g. SuperPi 32M, which we all like to bench here. Below, side-by-side on P5K3 Deluxe. Just as above, no memory settings has been altered in Windows and Memset window is opened just to provide additional info.

SuperPi 32M - DDR3-1800 7-7-7 @ 2.00v ------------- SuperPi 32M - DDR3-1800 7-6-6 @ 2.00v