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Question with 1600,1800,2000mhz ram

Last response: in Memory
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November 25, 2009 5:05:38 AM

This is the first time I have posted anywhere so forgive me if this is confusing. Something has been puzzling me with the 1366 mobo's' can you use 1600,1800,1866 and 2000mhz ram only through overclocking? I am wandering this because the ASUS P6T and P6TD specs on TigerDirect says it supports 1600,1800mhz ect... ram but beside the 1600,1800,2000mhz ram it says (Overclocking). None of the other mobo's says that.
Or am I just asking a stupid question.
Thanks though for any reply:) 
November 25, 2009 9:48:21 PM

Well I am pretty sure that the Asus P6T boards support 1333mhz on stock speeds, if you overclock them then they will support higher frequencies and if you buy higher ram then it supports it will downclock it to its support speed. Gigbyte boards support 2000mhz on stock i think so it varies from manufacture of the board and type of board.
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November 25, 2009 10:17:07 PM

Base memory speed is 1066 (133 x 8) and base CPU for a 920 is 2666 (133 x 20)

Keeping the same memory multiplier of 8, as you ramp up the BCLK frequency from 133 to say 167 your CPU speed is now 3.33 GHz (167 x 20) and your RAM speed is 1366 (167 x 8).

Get to the magic 4.00 GHz CPU speed w/ a BCLK of 200 gets a memory speed of 200 x 8 or 1600.

So yes, once you get past the 133 BCLK, you are OC'ing and that's when you need more than the 1066 base memory speed. Also you can pick any even numbered multiplier between 6 and 14.

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November 26, 2009 12:01:54 AM

So if the board says it supports say... 2000mhz the ram will run at 2000mhz stock speed. I am no good with overclocking so I just wanted to make sure that if I bought 2000mhz ram I wouldn't have to mess with the bios. I haven't been able to find any answer for this question so I thought I'd see if anyone here could help.
And will there be any noticeable difference between 1333 and 2000mhz ram. I am going to build a new computer and wanted it to be FAST for a change.

Thanks for your reply's :) 
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November 26, 2009 2:24:17 AM

Depending which software you use, also frequency of the ram isn't the only performance factor, cas latency also plays a big role.
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November 26, 2009 2:50:04 AM

OK thanks for the reply. I guess I need to learn more about how all that stuff works :(  I'll get there eventually

Computers are so complicated but I love working with them though :) 
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November 26, 2009 10:41:16 AM

^True that, computers are complicated, there are a million factors that affect performance of the different components. Its fun to learn also. And thanks for the feedback.
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