Kasra Posted March 16, 2013 Share Posted March 16, 2013 Hi I'm a newbie in this. I have these guys: http://www.newegg.com/Product/Product.aspx?Item=N82E16820145325 i5-3570 AsRock Z77 Extreme4 I've heard that you should use only 1.5v RAM on this Ivy Bridge CPU or it will hurt it's memory controller or something. Is it true? If so, I may have the option to replace them with a set of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16820233141 The reason I bought them in the first place is that I wanted my memory to work above 1866mhz, like 2000. But I couldn't get them that high without overclocking CPU, is it possible anyway? Thanks in advance. Link to comment Share on other sites More sharing options...
Synthohol Posted March 16, 2013 Share Posted March 16, 2013 the XMS ram should be fine, it even shows up as certified to run on that board in the memory finder. Link to comment Share on other sites More sharing options...
Kasra Posted March 16, 2013 Author Share Posted March 16, 2013 How about the voltage? And possibility to get it to 2000mhz? Link to comment Share on other sites More sharing options...
peanutz94 Posted March 16, 2013 Share Posted March 16, 2013 Voltage is fine. It was the second generation I series CPU's that were supposed to use nothing but 1.5v memory. Link to comment Share on other sites More sharing options...
Kasra Posted March 16, 2013 Author Share Posted March 16, 2013 So are you sure 1.65v is fine for this CPU? And how can I reach 2000mhz? without OCing the CPU Link to comment Share on other sites More sharing options...
peanutz94 Posted March 16, 2013 Share Posted March 16, 2013 So are you sure 1.65v is fine for this CPU? And how can I reach 2000mhz? without OCing the CPU Positive the voltage is fine. it even shows up as certified to run on that board in the memory finder. Use the MP profile for 2000mhz. You still are overclocking the CPU in a way. Your overclocking the memory controller which is in the CPU and it may still overclock the CPU a little but that is necessary to overclock your memory over 1600mhz. Link to comment Share on other sites More sharing options...
Kasra Posted March 16, 2013 Author Share Posted March 16, 2013 There is a profile named 1.2, I choose it then I set the voltage to 1.65 and set the freq to 2000 manually. The problem is the system doesn't boot, it restarts and the setting gets back to default 1066. But at 1866 is fine. The bios is the latest version 2.8. What's the problem? Link to comment Share on other sites More sharing options...
peanutz94 Posted March 16, 2013 Share Posted March 16, 2013 if it's stable at 1866mhz , then that would indicate that is the max your CPU is going to overclock the memory without getting into further BIOS settings. You would need to start overclocking the CPu at this point and try a different multiplier. But just as one last thing...when you set XMP that is all you have to do. Just choose the profile and save and exit . It should adjust the frequency and voltage for you. The reason I bought them in the first place is that I wanted my memory to work above 1866mhz, like 2000. But I couldn't get them that high without overclocking CPU, is it possible anyway? It may be best to look up some overclocking guides for your CPU and or MB to understand the fundamentals before you go adjusting them. When you run your memory past what the CPU supports(1600mhz) it is overclocking. You MB may say it supports dfaster memory but that in no way means that your CPU will be able to actually run those faster speeds. They do this for the overclocking enthusiasts who don't mind voiding warranties on their hardware to achieve those kinds of speeds. The Corsair BLOG has an article that may help you understand a little more. http://www.corsair.com/us/blog/setting-up-your-gpu-for-liquid-nitrogen-overclocking/ Link to comment Share on other sites More sharing options...
Kasra Posted March 16, 2013 Author Share Posted March 16, 2013 Thanks peanutz94 But can I set them at 1866 but at 1.5v or ~1.55? I don't need 2000mhz anyway. What should I do with timing settings then? I've heard about a memory test software to test the stability of ram after doing such things, what is it? Edit: I'm currently running them @1866mhz at 1.5v 9-10-9-26 but I'm not sure about the stability. What's your suggestion? Link to comment Share on other sites More sharing options...
peanutz94 Posted March 16, 2013 Share Posted March 16, 2013 Test stability with Memtest. There is a link for the download on the left side bar. Mount it to a USB stick or DVD and let the test run for three full passes. If it will pass that way at 1866mhz @1.5v then your okay. If it fails you need more voltage. Just use the timings that are printed on the label. Link to comment Share on other sites More sharing options...
Kasra Posted March 17, 2013 Author Share Posted March 17, 2013 Got it I'll be back with the results. Link to comment Share on other sites More sharing options...
Kasra Posted March 17, 2013 Author Share Posted March 17, 2013 It seems to be OK at 1866 1.5v 9-10-9-27 I got Pass 1 Error 0 But can I manually tweak the timings to for example 9-9-8-20 and run another test? Is less timing noticeable and will it somehow hurt or damage anything? (Kits, CPu etc.) Link to comment Share on other sites More sharing options...
peanutz94 Posted March 17, 2013 Share Posted March 17, 2013 But can I manually tweak the timings to for example 9-9-8-20 and run another test? Is less timing noticeable and will it somehow hurt or damage anything? (Kits, CPu etc.) You can certainly try. You really cant damage the modules just from changing the timings. The system will just get unstable. However,keep in mind that data corruption is always a possibility when playing with memory. Link to comment Share on other sites More sharing options...
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