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Thread: Running 8 GB of RAMs with EP45-DS3R




  1. #201
    Prequel's Avatar
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    CPU ref +1 is worse than CPU ref 0 (Worker #1 failed in 4 mins). I need to try MCH ref alone now, right?

    Will edit this post when I do.

    After that may also try CPU ref +3 with MCH ref +3 to make sure refs doesn't help stability at all. (I am sceptical about Easy Tune's way of applying things-- does it reset after restart?)

  2. #202
    Chike is offline Senior Member
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    Quote Originally Posted by Prequel View Post
    BTW should I remove these?:

    CpuSupportsSSE=0
    CpuSupportsSSE2=0
    Yes you can remove them I didn't see they helped the heat anyway.


    Quote Originally Posted by Prequel
    Also, is it possible for PC to use higher actual vcores in any other time with same BIOS values, or even use its highest possible value?
    I don't understand the question.

    Quote Originally Posted by Prequel
    Do all hardware have lower actual vcore than the set value anyway?
    To some extent yes.
    My board has some 0.037 vdrop too http://i60.tinypic.com/8we2xt.png


    Quote Originally Posted by Prequel
    EDIT: VTT 1.26, still seems unstable. Prime is running for an hour without a problem but I just saw a program crash during Prime. There's a slight chance it may be from 1.20 VTT test that I forgot but most likely not.

    EDIT2: And finally Prime crashed at VTT 1.26 too. I saw a very weird thing first tough. My RAM frequency just dropped from 1054 to 967 for a second and then turned back to 1054!!! How is that possible and what can cause such a thing? I haven't made any changes on Easy Tune except Vcore and VTT.
    I think it is down to vcore, references, or clock skew now.
    Try the references see if any change there help.

  3. #203
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    MCH ref +2 is worse than +1. It froze the computer. No response in any way. Had to hard reset.

    Refs didn't help at all at this frequency and at this Vcore IMO.

    Just to refresh things, here is my current (unstable but usable) settings:



    I think we should forget about references. VCore, VTT is my bet. Is it possible RAMs are getting in the way?

    I don't understand the question.
    Let's say 1.36 BIOS vcore is actually 1.30 on use. Is it possible in any other time for any reason the same 1.36 BIOS vcore to actually use 1.36? Or is it impossible?
    Last edited by Prequel; 01-26-2015 at 09:23 PM.

  4. #204
    Chike is offline Senior Member
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    What are RAM settings, 2.40B with tRD 9? That is not too stressful. try tRD 10 and/or 2.2v DRAM Voltage.
    Another simple test would be to just drop CPU multiplier to 7.5 and see if you still get errors
    I believe it is vcore.


    Quote Originally Posted by Prequel
    Let's say 1.36 BIOS vcore is actually 1.30 on use. Is it possible in any other time for any reason the same 1.36 BIOS vcore to actually use 1.36? Or is it impossible?
    I have never seen it go up to what I have set in BIOS, though it might for a very short period, look at the first image in this link.

  5. #205
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    I thought it was 2.40B tRD 9. But tRD was 8...

    I just set tRD to 10, Firefox failed after 10 mins of uptime.

    Dropped multiplier to 7.5...

    2 hours in Prime no issues yet.

    What does that mean? VTT? Something else?

    BTW auto virtual RAM currently sets it to 8GB max. Can I set it manually to 4GB? My SSD is only 60GB and my free space ~3GB. Or can I set rest to a HDD? Would it use SSD first then HDD or just random?
    Last edited by Prequel; 01-27-2015 at 12:59 AM.

  6. #206
    Chike is offline Senior Member
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    Quote Originally Posted by Prequel View Post
    I thought it was 2.40B tRD 9. But tRD was 8...

    I just set tRD to 10, Firefox failed after 10 mins of uptime.

    Dropped multiplier to 7.5...

    1.5 hours in Prime no issues yet.

    What does that mean? VTT? Something else?
    Bus frequency hasn't changed, memory settings are much more relaxed, CPU still fails but stable at lower frequency.
    So it's probably not memory settings/MCH Core, nor bus (VTT/refs/)
    This suggest that it's vcore


    Quote Originally Posted by Prequel
    BTW auto virtual RAM currently sets it to 8GB max. Can I set it manually to 4GB? My SSD is only 60GB and my free space ~3GB. Or can I set rest to a HDD? Would it use SSD first then HDD or just random?
    I have no knowledge of how the pagefile is handled.
    Do you get low memory notifications without pagefile at all?

    Note how much vcore I had to add to get 3.6GHz from 2.666GHz, if you add this amount to your VID it would be over 1.4v. It is not exactly how it works, but you may need more vcore.
    See this post, Q400 with the same VID as yours @ 3.6GHz vcore under load is 1.312V

  7. #207
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    I thought you said if I still get errors it is vcore? Or was your last sentence not connected to the one before? :)

    I do get low memory notifications in games with no pagefile at all. I didn't get any errors with 4GB. And I believe I can drop it to 1-2GB and still don't get notifications. So can I lower it as much as possible as long as I don't get low memory notifications?

    I stopped Prime 95 at 2h46m BTW, no issues.

    If VID is same, how do I need more vcore?

  8. #208
    Chike is offline Senior Member
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    Quote Originally Posted by Prequel View Post
    I thought you said if I still get errors it is vcore? Or was your last sentence not connected to the one before? :)
    It's what I have said, which sentence is in conflict? It's what we have quotes for.


    Quote Originally Posted by Prequel
    I stopped Prime 95 at 2h46m BTW, no issues.
    For x7.5, I assume?


    Quote Originally Posted by Prequel
    If VID is same, how do I need more vcore?
    Not all CPUs made equal, and your vcore is not 1.312v under load or is it?

  9. #209
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    Quote Originally Posted by Chike View Post
    It's what I have said, which sentence is in conflict? It's what we have quotes for.
    Here:
    Quote Originally Posted by Chike View Post
    Another simple test would be to just drop CPU multiplier to 7.5 and see if you still get errors
    I believe it is vcore.
    ***
    Quote Originally Posted by Chike View Post
    For x7.5, I assume?
    Yes.

    Quote Originally Posted by Chike View Post
    Not all CPUs made equal, and your vcore is not 1.312v under load or is it?
    It is 1.296v under load. But sometimes 1.312.

  10. #210
    Chike is offline Senior Member
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    Default Re: Running 8 GB of RAMs with EP45-DS3R

    Quote Originally Posted by Prequel View Post
    Here:.
    How is that in conflict? I said it's vcore and still say I think it is vcore.


    Quote Originally Posted by Prequel
    It is 1.296v under load. But sometimes 1.312.
    Maybe still not enough.
    I've seen a thread with Q9400 @ 4GHz, but it's GFlops were lower than yours so not sure how good of OC it was.

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