G. Skill Ripjaw RAM won't run at 1866mhz

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faddish

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Aug 26, 2013
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I have G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory and a Gigabyte GA-990FXA-UD5 ATX AM3+ MB - I tried setting the memory multiplier in the bios to equal 1866 but then it won't boot.
 
Solution
Dogsnake
The profiles give you two performance options. Selecting one or the other will instruct you MB to set to that profile. If you want to see what they are as well as see what your cpu and memory are set to, you can use (http://www.cpuid.com/downloads/cpu-z/1.69-setup-en.exe). It is a utility that will read this information. You can then choose which profile to run. Your MB defaults to the 1600 speed profile. To make use of the performance settings you must either set the parameters by hand or use one of the profiles. Since you seem to have little experience with memory or setting it up by hand, I suggest you select from the two profiles and let the MB/memory control the settings.
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Ninjawithagun

Ninjawithagun

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Aug 28, 2007
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Does your mobo have the capability to automatically adjust according to the memory XMP profile? If not, then you will have to manually adjust the latency settings and voltage to match whatever the specs are for your G.Skill Ripjaws memory modules.
 
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F

faddish

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Aug 26, 2013
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It does, the options are Profile 1 or Profile 2. Not sure what that means though.
 
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Dogsnake

Dogsnake

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Oct 20, 2006
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The profiles give you two performance options. Selecting one or the other will instruct you MB to set to that profile. If you want to see what they are as well as see what your cpu and memory are set to, you can use (http://www.cpuid.com/downloads/cpu-z/1.69-setup-en.exe). It is a utility that will read this information. You can then choose which profile to run. Your MB defaults to the 1600 speed profile. To make use of the performance settings you must either set the parameters by hand or use one of the profiles. Since you seem to have little experience with memory or setting it up by hand, I suggest you select from the two profiles and let the MB/memory control the settings.
 
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Solution
Ninjawithagun

Ninjawithagun

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Aug 28, 2007
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Select the XMP "Profile 1" option, save settings and restart. The new memory settings will take effect immediately and your system should boot up into the operating system state with no problems.
 
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