Help getting 3000MHz RAM to boot in P750DM2

Discussion in 'Sager and Clevo' started by marios50, Sep 12, 2016.

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  1. marios50

    marios50 Notebook Evangelist

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    Hi guys,

    So I just received my 32gb 3000MHz ram kit from corsair and I installed it. It runs @ 2666MHz out of the box but once I switch to XMP profile it does not boot.

    I heard about setting manual timings so I attempted that and simply changed them to 16-18-18-39 in order in BIOS and it loaded but still at 2666. Perhaps I changed the wrong boxes? I saw another guy managed to run the ram on his machine so I guess its possible.

    Would appreciate any help.
     
  2. marios50

    marios50 Notebook Evangelist

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    Update : Managed to get it to boot using XMP Profile #2 which then went back to #1 by its self but the RAM is being unstable and keeps restarting...
    Any ideas?

    EDIT : I'm not sure if this matters but I have a -100mV undervolt on my CPU.
     
    Last edited: Sep 12, 2016
  3. bloodhawk

    bloodhawk Derailer of threads.

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    You might need to do a full CMOS / NVRAM reset and then plug in the new modules. Before booting the system up.
     
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  4. marios50

    marios50 Notebook Evangelist

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    Thanks for the info. Do you know how I'll be able to do that?
     
  5. jclausius

    jclausius Notebook Virtuoso

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    See if this helps - http://forum.notebookreview.com/threads/clevo-p870d-fans-not-working-well.794572/#post-10308234

    Also, in regards to getting the system to recognize the memory, another thread which may be relevant - http://forum.notebookreview.com/threads/clevo-p870dm-g-wont-boot-after-swapping-ram.785267/

    There is also a thread (IIRC from Prema) describing steps on how to insert one stick, starting the system, shutting down, and then inserting the second. I didn't search for it, but I do know I've seen a description on how to get XMP profiles to 'stick'. (pun intended).
     
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  6. marios50

    marios50 Notebook Evangelist

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    Ah physically removing the battery seems to be outside my comfort zone :(
    The thing is the system did recognize the memory originally but after some usage it kept restarting... Thanks for the info tho!
     
  7. jclausius

    jclausius Notebook Virtuoso

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    Removing the NVRAM battery shouldn't be any big deal. I *think* on your model, you remove the bottom cover, there's a screw marked "KB" for keyboard. You remove that. Then on the other side, the keyboard is still held in place by magnets. Using a small piece of plastic, you pop that up, and the battery should be found there. If you put in the memory, then you should already know how to do this.

    If you *do* remove this, take EXTREME caution. (Sorry if this is scaring you). The battery retention clips are plastic, so you have to remove the battery using the correct force. Again searching these forums should be your guide. It's not hard at all once you've seen a video or a post describing the procedure. Anyone can do it.

    However some folks just jump in and try to remove it backwards or force it and it breaks the retention clip. If you find the video, you'll see it's not so hard once you know how.
     
  8. bloodhawk

    bloodhawk Derailer of threads.

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    On his system it should be next to the CPU socket. So ez pz.

    He will need to take that and the system battery out. Then power drain the components by pressing the power button a couple of times and put everything back in.
     
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  9. marios50

    marios50 Notebook Evangelist

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    Doesn't this only help when the system doesn't boot at all with the new RAM? Because mine does but is unstable.
     
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  10. jclausius

    jclausius Notebook Virtuoso

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    Problem is, this is just me guessing, so please take this with a grain of salt.

    If it somehow got configured with the wrong timings from a boot with a previous XMP profile or mis-read something, it may still boot, but cause BSODs or other instabilities. Resetting the NVRAM would clear it for certain.

    Again, this just a wild-a%&$ guess. I apologize for the slinging of spaghetti at the wall, but hopefully something sticks.
     
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