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Thread: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!




  1. #21
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Ok so tried retaining the CPU Term at 1.2 while raising and lowering the MCH Ref but no discernible difference in reliability. (With timings as they were BEFORE loosening them).

    Well not that I can tell over about 5 passes of test #5 anyway. It a bit random with how many errors and when they occur but certainly didn't get further than 2 of the #5 runs without an error. So I do find it a little hard to state categorically whether it is better or worse in this case.

    Did however spot a pattern in the Memtest "Error Summary" page. I don't know what the module numbers mean (As there are 16 of them - individual chips maybe?) where they are numbered 0 through 15, that the errors are almost always on numbers 1 and 3... A clue perhaps?

  2. #22
    Chike is offline Senior Member
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    If MCH referenece doesn't help at least we tried.
    Go back to previos settings, try higher tRFC 90-105.

  3. #23
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Thanks will try that and report.

    Will adjusting CAS-tRCD-tRP-tRAS settings help any?

  4. #24
    Chike is offline Senior Member
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    CAS 9 is already not so great for 1333, or even for 1600, these should be OK.

  5. #25
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Just checking here, When testing MCH Ref, did you set 1.20 Vtt and then leave it at that amount?

    If so that could by why it didn't help, that's not how you should set MCH ref. You want to set Vtt to 1.20, then adjust MCH ref, then set Vtt back up to a proper value for the speeds you are attempting (normally 1.225-1.34 depending on your overclock)

  6. #26
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    Hey Lsdmeasap

    Just checking here, When testing MCH Ref, did you set 1.20 Vtt and then leave it at that amount?
    Nope...

    ... You want to set Vtt to 1.20, then adjust MCH ref, then set Vtt back up to a proper value for the speeds you are attempting (normally 1.225-1.34 depending on your overclock)
    Yup thats what I did exactly.
    Funny how the relationship between the two changes.
    Tricky.

    Yeah so even tried up to 1.3 CPU Term now - with MCH Ref between values of .7 and .84 (at 1.2 vtt).
    Still no go. Approx 50 errors on 5 passes of #5.
    Groan.

  7. #27
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    I have also noticed another interesting pattern in the errors; almost all of them now (I have started back at square one with basic default voltages and more thorough testing) that almost all of the errors are at either 1920.7 or 1920.1 MB.
    Of note?

  8. #28
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    The memory addresses indicate that the errors are from the module in memory slot #1. <-- ignore this and see post #30
    This doesn't necessarily mean that the module in slot #1 is faulty. The problem might be with some of your bios settings.

    Check out Memtest86 - Memory Diagnostic Page for more information.
    Last edited by profJim; 04-13-2011 at 12:05 PM. Reason: added link
    Q9650 @ 4.10GHz [9x456MHz]
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    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
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    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
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    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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  9. #29
    Chike is offline Senior Member
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    This could be slot 1 or 3.

  10. #30
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    Default Re: GA-EP45T Memtest errors when all 4 slots full. BIOS help please!

    I did two quick tests using 2 x 1GB memory. One module is fine and the second module generates a few Memtest86+ errors during test #5.

    Test #1:
    good module in slot 1 and bad module in slot 3 resulted in several errors in the 1348 - 1994 address range

    Test #2:
    bad module in slot 1 and good module in slot 3 resulted in several errors in the 1066 - 1911 address range, where most of the errors were in the 1100 address range

    I'm minimally tempted to repeat the test using 4 x 1GB modules (1 bad and the other 3 are good), but this wouldn't help determine how the physical memory is mapped across all four modules.
    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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