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Samsung 2X4GB ASRock Z77 Extreme4 Help

post #1 of 29
Thread Starter 
Hey guys,

I am getting quite frustrated with my new build. I have never overclocked the RAM before, and decided to this time and it has only brought me troubles. I am hoping you guys can help me out here and get me more comfortable with it.

I have tried my RAM at nearly every setting that I can find that people have posted with no luck. The system is yet to even start up with the settings I find. It sometimes even takes a few restarts to just get into the UEFI. If it matters, I have noticed that my 3570K crashes at anything above 4 GHz at 1.2V.

I am currently at these timings:
9-9-9-24 1800MHz @1.5V
I'm not sure this is even stable because sometimes I will get a "Prime95 has stopped responding" while running a blend test.

These are stable for an hour on Prime95.

The timings I have tried that failed (there are more, but here are just some that appear lots of places):
9-9-9-24 1866 MHz @ 1.5V
10-10-10-28 2133MHz @ 1.5V (I even tried 1.6V with no luck)
11-11-11-28 2133 MHz @ 1.4V

Here are some screenshots of my UEFI. I looked through guides, and thought I knew what I was doing, but I guess not.

Please help me out and let me know what I am doing wrong frown.gif

448

448

448

448

Other screenshots that might help (Click to show)
448

448

448

448

Thanks a ton in advance for all of the help!

Big Al
Edited by bigal1542 - 6/4/12 at 8:53pm
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post #2 of 29
voltage seems a little low on those dimms...
post #3 of 29
Thread Starter 
Quote:
Originally Posted by FlashFir View Post

voltage seems a little low on those dimms...

As in the 1.5V/1.6V is low or something else?

Sorry if it is a stupid question, but I am REALLY new to memory overclocking.
Edited by bigal1542 - 6/4/12 at 5:53pm
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post #4 of 29
Thread Starter 
Bump for the awesome help OCN always gives!
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post #5 of 29
Quote:
Originally Posted by bigal1542 View Post

Bump for the awesome help OCN always gives!

I have the same CPU, and same memory, and actually a similar problem a ways back.

I had to up the VTT (Integrated Memory Voltage) on my CPU trying to get anything higher than 1866. You may try to bump to 1.15v VTT.

Im able to do:

1866 CAS9 @ 1.35v - 1.1 VTT
2133 CAS10 @ 1.45v - 1.15 VTT
2400 CAS 11 @ 1.55v - 1.175 VTT
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post #6 of 29
Thread Starter 
Quote:
Originally Posted by Hatchet View Post

I have the same CPU, and same memory, and actually a similar problem a ways back.
I had to up the VTT (Integrated Memory Voltage) on my CPU trying to get anything higher than 1866. You may try to bump to 1.15v VTT.
Im able to do:
1866 CAS9 @ 1.35v - 1.1 VTT
2133 CAS10 @ 1.45v - 1.15 VTT
2400 CAS 11 @ 1.55v - 1.175 VTT

Sweet thanks! I will try changing the VTT.

Is there anything else I could try?

+rep for the advice!
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post #7 of 29
Quote:
Originally Posted by bigal1542 View Post

Sweet thanks! I will try changing the VTT.
Is there anything else I could try?
+rep for the advice!

happy to help!
Not that i know of. The voltage screenshot i cut off a bit. What PLL voltage are you running?
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post #8 of 29
Thread Starter 
The PLL 1.586 which is the minimum I can set it to.

Also, does increasing the VTT increase the temp of the CPU? Will I need to raise the core clock to keep it stable as well?

Thanks again for the great help.

I'm on my phone now, but I'll rep ya when I get on my comp.
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post #9 of 29
I haven't noticed any increase in temps going from 1.1-1.175, but its of course possible as the chips IMC will be consuming slightly more power.

You can make it a stand alone change. No need to change clock speed, etc.

PLL looks good.
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post #10 of 29
Thread Starter 
Quote:
Originally Posted by Hatchet View Post

I haven't noticed any increase in temps going from 1.1-1.175, but its of course possible as the chips IMC will be consuming slightly more power.
You can make it a stand alone change. No need to change clock speed, etc.
PLL looks good.

Sweet, sounds great. I will try that as soon as I find that my most recent CPU settings are stable smile.gif

+rep again
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