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Thread: ***ASUS Rampage IV Extreme Owners Thread***

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  1. #11
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    Oct 2009
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    27
    Quote Originally Posted by WCRF View Post
    Same strange behavior here.

    My chip can pass Cinebench at 4.5ghz (100,1mhz x 45) @ 1.22v in bios (1.24v in Windows), I can perfectly run 3dmark11 and Vantage at 5.1ghz (127,6mhz x 40) @ 1.45v, but no way I can pass (or even reach) 5.2ghz. I've tried up to 1.65v.

    I can't believe in such a low wall.

    Temp is not the deal, I run it in a waterchiller.

    Tried bios 1005 and 1101.



    Its definately related to BCLK and or liquid and air cooling. If you had Phase it would go over with no problem without finding the BCLK sweet spot at an even lower voltage then you 5.1ghz takes. But without Phase if you can hit 5.0 or 5.1ghz on at a certain voltage but cant get any higher, Finding the BCLK sweet spot will get you over. But only for another 2 or 300mhz.

    Just to be sure, I had my UD7 board and the CPU would not go over 5.1ghz. It would get to starting windows but no logo spin. It would do 5.1 at 1.48v but anything over 5.1 even up to 1.66v would stick at the exact same point the where it would show starting windows but no logo spin at all. Then I put that board on phase and reached 5.6ghz at 1.62v.

    I dont know if its heat related but it may be surging so fast it locks before you see it.
    Last edited by abeeftec; 01-15-2012 at 02:18 PM.

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