ASRock Z77 Extreme4 With G.Skill 2133 RAM

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tastypotato

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Feb 10, 2013
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I'm having trouble getting my motherboard to run my RAM at the appropriate frequency.

I've tried changing the timing manually and have set the profile to run at 2133, but when I boot into Windows and check CPU-Z it keeps telling me that the RAM is still running at 1600.

Any tips or tricks with this BIOS to getting this to run?

I've got the timing set to 10-12-12-31 and 2N.

CPU is an i7 3770k.

Thanks!
 
Solution
Tradesman1
Are you looking in the memory tab of CPU-Z - if so in freq it should show 1066 - 1066 x 2 = 2133 effective since this is DDR (DOUBLE DATA RATE) -
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tastypotato

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Feb 10, 2013
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I just flashed the most recent BIOS (Version 2.90). I thought that was going to be the case because it mentioned something about not being able to run a similar RAM stick at 2133.

These are the sticks of RAM: http://www.newegg.com/Product/Product.aspx?Item=N82E16820231654

I'm going to take a picture of the DRAM config page and report back.

I've included pictures of the BIOS page with stuff that concerns the RAM. Hopefully this helps.
http://i.imgur.com/hDxIZJY.jpg
http://i.imgur.com/RAztLqm.jpg
http://i.imgur.com/FPqrhBE.jpg
http://i.imgur.com/nyBBMuB.jpg
And finally, CPUZ telling me that my RAM isn't running in 2133.
http://i.imgur.com/ue2yDBz.png
 
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T

tastypotato

Honorable
Feb 10, 2013
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Interesting... it is showing 1066.5 on the DRAM Frequency. So I guess it is running at 2133. Then how come when you look at the RAM individually the max bandwidth is still showing only PC3-12800 instead of the PC3-17000?
 
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gskill support

gskill support

Splendid
Feb 27, 2012
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www.gskill.com
Look at the DRAM tab, not SPD.

It will show ~1067MHz, which is DDR3-2133

DDR is double data rate, so double the MHz gives you the effective DDR3 speed.

As long as XMP is enabled, everything will run accordingly so don't worry!

The SPD tab shows you standard values, not what the memory is actually operating at. The "Maximum Bandwidth" is highest value for the RAM with AUTO default settings. Since you are using XMP, that value does not matter at all because standard value is no longer used or relevant.

Enjoy!

Thank you
GSKILL SUPPORT
 
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tastypotato

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Feb 10, 2013
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Woah! GSKILL browses these forums? That's awesome! Thanks so much for the info! :D



I'll read that, thanks for the additional info. :) I've marked one of your responses as a solution.
 
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RendCycle

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Nov 19, 2016
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Hi! I am planning to replace my 16 GB (2 x 8 GB) G.Skill Sniper 1600 MHz CL9 RAM and boost it to 2400 MHz or higher to hopefully avoid experiencing CPU and/or GPU bottlenecks as I will be upgrading to a newer video card (e.g. Vega 64 or 1070 Ti). Can you recommend a 2400 MHz G.Skill Memory RAM that will work on the Asrock Z77 Extreme4 motherboard? I have an Intel i7-3770K processor overclocked to 4.3 GHz.

I tried searching the G.Skill product pages but couldn't find a compatible 2400 MHz Memory RAM stated in the QVL tab. Even those RAMs I found in Newegg are only compatible with Asrock Z77 OC Formula motherboard.

 
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RendCycle

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Nov 19, 2016
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I've tried overclocking my RAM but it can go only up to 1800 - 1866 MHz. Higher than that, the PC won't boot up. Actually in 1866 MHz, I experience the BIOS suddenly reverting to factory settings and erasing all my overclock settings even with the processor. Maybe its just the old battery of the motherboard so I will replace that soon. I also did a MemTest and it passed the default test method with 1866 MHz but not higher.

I found the G.Skill Ripjaws X 16 GB / 32 GB w/ 2133 MHz speed to be compatible with my board as indicated in the G. Skill site. Would you know if I use those RAMs, there will be higher chances of them working when overclocked to 2400 MHz compared to my current 1600 MHz RAMs? Here are the two codes for the RAMs:

- F3-2133C11D-16GXL
- F3-2133C11Q-32GXL
 
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