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Thread: ASRock Fatal1ty X99X Killer Memory Errors with Dual Quad Kits, None with Single




  1. #1
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    Question ASRock Fatal1ty X99X Killer Memory Errors with Dual Quad Kits, None with Single

    Relevant System Details:
    --------------------------------
    Processor: Intel i7 5820K
    Motherboard: ASRock Fatal1ty X99X Killer
    Ram: Two kits of G.Skill Ripjaws-4 F4-2400C15Q-32GRK
    Power Supply: Corsair RM850x
    Graphics Card: Sapphire Radeon R9 280X 3GB Vapor-X


    PCPartPicker part list:
    --------------------------------
    Intel Core i7-5820K, Sapphire Radeon R9 280X, Corsair 400R - System Build - PCPartPicker


    General Background
    --------------------------------
    Please bear with my ignorance wherever evident, I have very little experience in building computer systems.

    I am building a workstation (not for gaming), every component is brand new. I haven't installed an OS yet. Running Memtest86 from the UEFI bootable USB disk provided from their site.

    The Processor, Motherboard and Ram Kits are compatible with each other according to their respective QVLs.

    There are 8 DIMM Slots in the Motherboard. There are two sets of 4 DIMMS, colour coded Red and Black. The Black ones take one Quad set, and the Red ones another Quad set. The Red ones can't be populated if the Black ones aren't filled first.

    I have 2 Quad-Channel kits of 32gb each (4x8gb). When I install either of the two kits into the Black Slots and run memtest86, I get no errors. No errors with XMP, stock JEDEC and Motherboard Auto settings. No errors with Single, Parallel or RoundRobin processor cycling in Memtest 86.


    The Problem
    --------------------------------
    However, whenever I install both the Kits (in both permutations) Memtest86 fails with Stock JEDEC and Motherboard Default settings.

    With the XMP profile selected, and both Kits installed, the UEFI mostly fails to boot, with the POST error code "bd" or "bF". If it sometimes boots, it crashes, freezes or starts to boot-loop within 10 seconds.


    My Observations
    --------------------------------
    Even though all of the Memtest86 processor modes eventually produce errors within the first pass, the errors are particularly forthcoming in the "Parallel" processor mode, producing thousands within minutes.

    From all of the tests results I have seen, I can't discern any persistent Memory Addresses that are related to the errors.

    I have done the tests before and after updating to the latest UEFI Firmware (2.10), there were no changes. I have reset the CMOS (using button, jumper and battery) and there were no changes.


    Request for Help
    --------------------------------
    For those interested, all the MemTest86 error reports and logs (in html, pdf, zip formats) can be found at: https://drive.google.com/folderview?...p=sharing#list

    Given all of the above, and that any MemTest86 errors are not acceptable for my purpose, I would like to know from those with more experience in such matters:

    Which is most likely to be at fault, the RAM, Motherboard or the CPU?

    What else could be the cause?

    What should I do next?


    Thank You
    --------------------------------
    I would be extremely grateful for any help or feedback, and thank you in advance for your time and effort.
    Last edited by on&off; 02-19-2016 at 05:12 AM.

  2. #2
    profJim's Avatar
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    Default Re: Memory Errors with Dual Quad Kits, None with Single

    Welcome to the forum.

    G.SKILL - RAM Configurator shows that the following memory kits are compatible with your motherboard:
    • [Ripjaws 4] F4-2400C15Q-32GRK (4x8GB)
    • [Ripjaws 4] F4-2133C15Q2-64GRB (8x8GB)
    • [Ripjaws 4] F4-2133C15Q2-64GRR (8x8GB)
    • [Ripjaws 4] F4-2666C16Q2-64GRB (8x8GB)

    Using two of the 4x8GB kits together is not guaranteed to be compatible, even though a single kit is compatible.

    You might be able to get both of your 32GB kits running after making some changes to the memory timings or voltages.

    Contacting G.Skill tech support will probably be best.
    I haven't seen official G.Skill support from G.Skill - Matt in the G.Skill Tweaktown forum for quite a while.

    I'm moving this thread to the ASRock forum for so that others might be able to help you.
    Q9650 @ 4.10GHz [9x456MHz]
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    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
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    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
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    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
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  3. #3
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    Unhappy Re: ASRock Fatal1ty X99X Killer Memory Errors with Dual Quad Kits, None with Single

    Thank you for your reply.


    The reason I went with the 2x32gb kit rather than the 1x64gb kit is because of the QVL documentation as presented at both the ASRock and G.Skill websites for the relevant components, which made me conclude (in my inexperience) that the 4x8gb kits were compatible with the motherboard, whereas the 8x8gb kit was not.


    I find it necessary to point out how I came to that conclusion, in the hope that these WebPages will be updated in the future with more accurate information, to make things clearer for everyone . I am attaching some PDF captures of the mentioned WebPages as they appear now, in case the information is updated in the future.


    In the ASRock Memory QVL for the X99X Killer MotherBoard the G.Skill 8x8gb kits (e.g. F4-2133C15Q2-64GRR) are not listed, whereas the 4x8gb kits are (e.g. F4-2400C15Q-32GRR). Secondly, according to "Note1: Quad Channel: V = supports 4 modules and 8 modules" the F4-2400C15Q-32GRR supports 8 modules. Since F4-2400C15Q-32GRR is a 4x8gb kit, I logically assumed that it meant 2 kits of 4, especially since the 8x8gb kits were not listed. Site / PDF


    When I referred to the G.Skill Ram Configurator for this motherboard there were no 8x8gb kits available in the "DDR4 2400MHz" category, but it listed the 4x8gb kits as compatible. Site / PDF


    When I performed a product search on the G.Skill website for "DDR4", "64gb (8gbx8)", "Quad Channel Kit" the only 2400MHz option was the F4-2400C15Q2-64GRK. Site / PDF


    The QVL List of F4-2400C15Q2-64GRK, from the search above, doesn't show the ASRock X99X Killer MotherBoard as compatible. Site / PDF


    Whereas, the QVL List of F4-2400C15Q2-32GRK, which you get as a search result of "DDR4", "32gb (8gbx4)", "Quad Channel Kit", clearly shows the ASRock X99X Killer MotherBoard as compatible. Site / PDF


    Which led me to conclude that the 8x8gb kits were not compatible with my motherboard, whereas the 4x8gb were. I don't know if the QVL Specification of F4-2400C15Q2-64GRK is an error, oversight or an omission, but it totally skewed my interpretation.


    I would have definitely gone for the 8x8gb kit had I not misinterpreted the QVLs (or been misled by the absence of certain information) and realised earlier (pardon my ignorance) that the 8 matched kits are always likely to be more compatible. I have already spent quite a bit extra, in trying to get these matched kits rather than regular ones, to avoid the pitfalls of Voltage Adjustments.


    I don't have the knowledge or experience to get into the subtleties of OverClocking Memory or the time it would take to get it absolutely right. Neither can I afford to have it even slightly unstable, since this is a system meant for serious work. I was hoping to get the requisite help from the XMP profiles which I paid all the more for.


    I'll try to contact G.Skill support and see if they can accommodate.

  4. #4
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    Default Re: ASRock Fatal1ty X99X Killer Memory Errors with Dual Quad Kits, None with Single

    You're welcome.

    See if G.Skill will allow you to turn in both of your 2400MHz 4x8GB memory kits for one of the compatible 2133MHz or 2666MHz 8x8GB memory kits.

    Intel's standard X99 memory speed is 2133MHz and all faster memory speeds are considered overclocks.

    The motherboard QVL is a list that includes memory kits that they have tested and found to be compatible. Keep in mind that they don't have have the time or resources to test all possible brands and models of memory kits for compatibility.

    The memory manufacturer's QVL is a list that they have found to be compatible with specific motherboard models. Memory manufacturer's have an added incentive to provide the most comprehensive list of compatible memory so that they can best meet the customer's needs.

    I trust both QVL lists, but only when the memory manufacturer lists compatibility of specific memory kits with specific motherboard models.

    I would never buy a memory kit where the memory manufacturer says something like "Designed for all x99 model motherboards" and does not provide a detailed QVL list.

    Even if you install memory that isn't overclocked, you still need to perform extended stress tests, such as Prime95, to ensure that your system is stable. Memtest86 or Memtest86+ are excellent for preliminary testing, but your system might fail Prime95 or similar stress test programs after passing the initial memory tests.

    I think that one or more of the Memtest86 tests are nearly impossible for any memory kit to pass.
    Memtest86+ is from a different organization and I haven't heard of any similar problems.

    Let us know how things work out.
    Last edited by profJim; 02-20-2016 at 09:30 AM. Reason: typo
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


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