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Had to replace CMOS battery, is my RAM set to 1333mhz or 1866mhz?

I'm a bit of a computer novice still. I used to use Asus Suite 3's 4way optimization to set my ram timing, but they don't have that on Windows 10 yet. When I changed the CMOS I lost my fan settings in the bios so I assume I lost my ram settings, here is a pic from CPU-Z.

Is my ram at 1333mhz (DRAM Frequency 666.1 times two plus a bit) or is it at 1866mhz (NB Frequency 3797.8mhz divided by two minus a little bit) I literally have no idea what i'm talking about but it seems a waste to have it sitting at 1333 instead of 1866.

Motherboard is Z87-Pro Ram is G.Skill RipjawsX 16GB (2x8GB) DDR3 PC3-14900 1866MHz Dual Channel Kit[ GSK-2X8G18 ] If that helps.

BIOS non-advanced lets me set, XMP Profile 1 or 2 or Disabled, I beleive its currently on disabled but the Asus Suite Settings might be affecting settings in Advances bios

Edit: Forgot to add DRAM frequency in CPU-Z fluxtuates between 666.3 and 666.1 and NB Frequency is 3797.8 while gaming and goes through all sorts of numbers all the way down to 799hmz when doing nothing on the desktop

http://i.imgur.com/MrNVfU6.jpg
13 answers Last reply Best Answer
More about replace cmos battery ram set 1333mhz 1866mhz
  1. Enable xmp, and set it to 1866 in the bios.
  2. Would that be XMP Profile 1 or Profile 2 In the EZ-Bios Screen? and could you tell me which tab in Advanced bios the ram is?

    I'm looking at the motherboard manual right now, it says something like AI Overclock Tuner [Auto] will load optimal setting for the computer, but I can set it to [X.M.P] for it to use the XMP Profiles
  3. Best answer
    You're overthinking it. If your going to run at stock speeds on the CPU then just use the XMP profile.

    Terrace said:
    Would that be XMP Profile 1 or Profile 2 In the EZ-Bios Screen? and could you tell me which tab in Advanced bios the ram is?

    I'm looking at the motherboard manual right now, it says something like AI Overclock Tuner [Auto] will load optimal setting for the computer, but I can set it to [X.M.P] for it to use the XMP Profiles
  4. Went to EZBios and set Profile 1 Instead of Disabled
    Went to Advanced Bios and Saw some automatic chances, when clicking to "save changes and reboot" the summary said Changed AI Tuner from Auto to X.M.P Changed Voltage from Auto to 1.5V and something else which I have unfortunately forgotten. CPU-Z now looks like this and doesn't fluctuate between gaming and desktop usage.

    Is this all correct? :) if so i'll mark as solved.



    royalcrown said:
    You're overthinking it. If your going to run at stock speeds on the CPU then just use the XMP profile


    I think someday i might try overlocking my CPU to make sure it isn't a bottleneck if I can find a step by step with some pictures
  5. The reason it was fluctuating so much was that your power saving features were on, it's normal for it to go all over the place and slow down when the CPU isn't under load. Yes it looks fine, and most DD3 now is 1.5 volts anyhow, some can be run lower, and some can be 1.6, 1.5 is the standard for 95 percent though.
  6. If I would like the power saving features to be back on but also have the ram capable of going to 1866mhz when gaming what would I do?

    Ez bios XMP Profile 1 still? and then Advanced Bios AI Overclock Tuner back on "Auto" instead of XMP?
  7. IDK, I never power save...lemme play with my board in a lil bit and get back to you.
  8. Thank you, I appreciate the help!
  9. Terrace said:
    Thank you, I appreciate the help!


    Okay Terrace, I ran CPU Z with the motherboard defaults and windows ( windows 10) set on balanced power options (that is the default when it's installed). Memory settings stock (Auto, no XMP) and CPU Z on the CPU tab.

    It showed my clocks (core #0) jumping between 1599 and 3500. Most of the time at 3500 then dropping to 1599 That's pretty normal for it to be low and spike because of all the crap it's running behind the scenes.

    Changed to XMP 1 and the BCLK/PEK 100 and turbo setting changed to manual, same as you. Still same windows power settings. CPU Z then showed it still hopping around same as before, just a lil slower, or longer at each extreme to put it another way.

    Went into bios and changed the TURBO setting to AUTO and rebooted. CPU Z now shows that it spends most of it's time at 1599, but when I run an app it still goes up to 3500 or so as needed.

    So I am gathering from looking that XMP shouldn't really affect your power saving states (p states) for your CPU. THey shouldn't in theory either as 333 mhz to 400 on your memory bus shouldn't really cause any problems or need special settings with even cheap ram.

    Either a bug or something else had to get changed in your settings I think. Your CPU should still act like before unless there is some change in haswell or broadwell that IDK about as far as the power delivery on chip.
  10. No,it shouldn't affect power settings, XMP simply sets up the DRAM for you to spec (Profile 1 is normally the spec (advertised) profile, Profile is often an 'enthusiast' profile which provides slightly better performance via tighter timings or most often a tighter CR (command rate) of 1T or N rather than the base CR of 2)
  11. Yeah, behind the times on my 3770k.. :D. I wouldn't think it would change anything, but I don't own it.

    Tradesman1 said:
    No,it shouldn't affect power settings, XMP simply sets up the DRAM for you to spec (Profile 1 is normally the spec (advertised) profile, Profile is often an 'enthusiast' profile which provides slightly better performance via tighter timings or most often a tighter CR (command rate) of 1T or N rather than the base CR of 2)
  12. A lot of this has started going straight over my head as I really am a novice!

    I see that under the CPU tab in CPU-Z my core speed is 800mhz Multiplier x8 and then when I game its 3800mhz and Multiplier x38 which I assume is something that Asus Suite 3 had setup when I had that running on windows 8,1. so it's still power saving ok for the CPU.

    To surmise for me, was my RAM running at 1333mhz at the start of this topic? and It's now fixed at 1866mhz? Can I get it to do what the CPU is doing and run at "YYY" on the Desktop and 1866mhz when in a game? Or should I just leave it like it is now and stop where I am because I won't exactly notice the difference on the electric bill?

    http://i.imgur.com/3wFhbfE.jpg
    http://imgur.com/3wFhbfE
  13. Leave the ram as it is.Picking a slower speed doesn't do anything for power usage when at both speeds working at 1.5V.
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