Memory oc problem

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assassin727

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Apr 11, 2014
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so i just bought Asrock z77 extream 4
and G.skill 2133 mhz ram

so naturally i updated my bios, set it to default settings,and went it to windows.. did stress testing etc.. and then restarted and tried to enable xmp 1.3... but it just crashed..and then i tried to dial in 2133 1866.. nothing.. just 1600 .. help lol

i have intel 3350p (3,7ghz)
 
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bgunner

bgunner

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Feb 13, 2009
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you may be able to get the 1866 out of the memory controller with upping some voltages. But you need to realize this fact, that CPU's memory controller is only designed for 1600. anything over is a bonus. As I have not OCed an Intel in a few years and the names of the voltage adjustments have changed I can't say the exact ones to up but it is usually the NB and CPU-NB voltages that need a bump.

EDIT: After it boots at the higher frequency test the ram with Memtest86+. Burn it to a disk or flash drive and run it from the boot options.

PS. after another review of the CPU your OCing it to 3.7 by the base clock. By doing this you are also increasing the ram frequency because it runs off the base clock. Remove the OC and set the ram to the Higher level and try.
 
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assassin727

Reputable
Apr 11, 2014
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4,510
so i managed to get 2000 mhz with the 3,7 oc on the cpu ( btw i didn't change the base clock just the multiplier .. so i didn't change the mem speed )

but know that i want to get 2133 i bump up the ram voltage to 1.65 as the manufacture sad i can and crashed.. so .. no ideas there..

Edit : i ran the "memtest86" and it worked just fine, got some high numbers to :)
 
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bgunner

bgunner

Judicious
Feb 13, 2009
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be careful with bumping the ram voltage up because the newer Intel CPU's will fry the memory controller at 1.65 volts. the newer ones were only made to tolerate a maximum of 1.5 before hurting the memory controller inside the CPU. Please look into what your CPU can handle or damage can result. I believe it was the with either the Sandy bridge or the ivy bridge CPU's they started having this issue with.
 
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Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
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With a 3350 1600 is going to be about tops, need a K model to get up there w/ 2133....while OCing the MC (memory controller) can be done, w/ your CPU it's going to take a lot of voltage and you might end up frying something....Always best to verify what your CPU is capable of, too many people out there go by the outdated (about 5 years) thought that if a mobo supports the DRAM then you can use it, that went out with the socket 775 when the MC was on the mobo, now it's the CPU that figures most dominantly
 
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