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Ram runs too slow

Last response: in Overclocking
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June 25, 2013 2:30:03 AM

Hello guys!

First off all, i recently built a new pc and i wanted to try out some overclocking for the first time.

My relevant specs are:

Asus Maximus V Formula
i7 3770k
Corsair Dominator Platinum 1866 (16gb)

My CPU runs stable at 4.7 GHz at the moment.
(Btw, does this look okay?)


But my RAM somehow refuses to run at 1866 mhz.. it stays like this all the time:


I tried enabling the XMP profile but then my CPU doesn't go over 3.9,
and when i try to change the target frequency my PC crashes before even firing up Windows.. :pfff: 

Could you please help me? :D 

More about : ram runs slow

a b K Overclocking
June 25, 2013 2:32:30 AM

Could you also post a SS of the SPD tabs?
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June 25, 2013 2:36:48 AM

Of course, here you go:


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Best solution

a b K Overclocking
June 25, 2013 2:38:40 AM

Hm i would say that ram isn't getting enough volts to run 1866, but looks like it should do it. Maybe try to add a little of DRAM voltage when you enable XMP profile, try and see if you can get it over 3.9ghz?
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June 25, 2013 2:49:24 AM

Nailed it, looks like somehow it's working now..





Thanks a lot!
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a b K Overclocking
June 25, 2013 3:50:57 AM

Nice! Awesome overclock btw, altough that core voltage does seem a little high doesn't it?
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June 25, 2013 4:40:29 AM

Okay, I lowered it and it's still stable after half an hour of prime95.. I'm satisfied :D 



The temps don't even go past 70°.. considering that Ivys are known to get hotter than Sandys maybe I could get it even higher, but I guess that wouldn't make much of a difference.

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!