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post #11 of 15
5/11/12 at 4:43am
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I downloaded cpu-z last night and I was surprised to see that my RAM was already running at 1600 (800 MHz listed). Could the Deneb be set up to automatically run the RAM at its highest rating? I have never changed anything and no one else has touched my system. Everything I read said 1333 was default. thinking.gif
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post #12 of 15
5/11/12 at 6:49am
Quote:
Originally Posted by sbrochew View Post

I downloaded cpu-z last night and I was surprised to see that my RAM was already running at 1600 (800 MHz listed). Could the Deneb be set up to automatically run the RAM at its highest rating? I have never changed anything and no one else has touched my system. Everything I read said 1333 was default. thinking.gif

1333 MHz. is the default Phenom II RAM frequency. It's possible that the SPD on the RAM is programmed for 1600 MHz. but that would be unusual as typically 1066/1333 MHz. is the default SPD setting on most DDR3 RAM. It's possible there is an XMP setting in the RAM for 1600 MHz. and the BIOS detected this and set it as the default?
Edited by AMD4ME - 5/11/12 at 6:58am
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post #13 of 15
5/11/12 at 6:54am
Quote:
Originally Posted by xd_1771 View Post

Nope.  No correlation here.
I can see higher RAM speed holding back Northbridge frequency slightly (not to a point where it'd matter) and CPU speed where a ref clock overclock is used.  Where RAM and CPU are separate multiplier?  Simply not possible.  There is no correlation between them and there is no possibility that increasing a RAM multiplier will limit an increase of the CPU multiplier on its own.  If the increased speed RAM is causing instability, it's causing instability on its own..... not causing the CPU to become unstable, because the CPU is never affected by that increase alone.

As always I respectfully disagree based on firsthand OC'ing experience and yes everything matters when the CPU is OC'd to it's limit and yes it is all inter-related as testing has shown over and over again. It should be obvious to you but perhaps you just don't understand that not every IMC will run RAM higher than the default 1333 MHz. stable. That is why you leave the RAM frequency at the default or lower frequency until you find the max CPU clockspeed then you tweak the RAM if desired.

There is no point in arguing because this has been documented by me and many other folks. It's perfectly fine with me if you believe otherwise. It doesn't change anything and you're completely free to believe whatever makes you happy and people are free to tweak their PC however they chose. wink.gif
Edited by AMD4ME - 5/11/12 at 7:00am
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post #14 of 15
5/11/12 at 7:13am
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Quote:
Originally Posted by AMD4ME View Post

1333 MHz. is the default Phenom II RAM frequency. It's possible that the SPD on the RAM is programmed for 1600 MHz. but that would be unusual as typically 1066/1333 MHz. is the default SPD setting on most DDR3 RAM. It's possible there is an XMP setting in the RAM for 1600 MHz. and the BIOS detected this and set it as the default?

I guess the good news for me is that it is already set at 1600 so I do not need to do anything else! thumb.gif

Now if I can just do some more reading like with the first response and figure out how to overclock my mobo I will be good to go!
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post #15 of 15
5/11/12 at 8:11pm
Quote:
Originally Posted by sbrochew View Post

I guess the good news for me is that it is already set at 1600 so I do not need to do anything else! thumb.gif
Now if I can just do some more reading like with the first response and figure out how to overclock my mobo I will be good to go!

Enjoy thumb.gif
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