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Thread: RAM failing memory diagnostic util

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    Zzzzzzz sleepyhead's Avatar
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    RAM failing memory diagnostic util

    Hiya,

    I have a thread going elsewhere in the forum (here) regarding an issue with the memory.

    Anyhow, my real question is...would upping the voltage to the notherbridge (above stock) help stabilise the RAM? I am currently on my third set (1st set RMA'd successfuly, 2nd set is still with me but no longer installed, 3rd set installed) of RAM and I do not believe it is possible for me to get 3 sets of DDR2 RAM faulty out of the box.

    Everything is running at stock.
    E6750
    FP-IN9 SLi
    CAS4 PC6400 DHX 2x1GB @2.1v but with 5-5-5-18 timing as 4-4-4-12 will not POST.

    Just a thought as I read elsewhere hear of upping northbridge voltage to get 4 sticks of ram to maybe operate.

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    Registered User Yellowbeard's Avatar
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    Re: RAM failing memory diagnostic util

    Are you running 2 modules or 4 modules? And, have you flashed to the latest bios?

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    Zzzzzzz sleepyhead's Avatar
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    Re: RAM failing memory testing util

    2 modules.

    Bios version is 15 (I think), but 16 is out.

    My wording is bad on my thread titlle; not really a diaagnostic tool but testing/check tool.

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    Registered User Yellowbeard's Avatar
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    Re: RAM failing memory diagnostic util

    Try the most recent bios and you may also want to check out with ABIT support. I agree that it is not likely that you got 3 consecutive bad sets of memory. And, the fact that you can post and run at 5,5,5 but not 4,4,4 could be sign of a bios issue.

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    Zzzzzzz sleepyhead's Avatar
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    Re: RAM failing memory diagnostic util

    I have used memtest86+ V2.01 for the first time It's a very nice program and not as scary as I thought.

    Anyhow, please see screenshots* for info:

    Bios settings:
    http://i89.photobucket.com/albums/k2.../BIOSPage1.jpg
    http://i89.photobucket.com/albums/k2.../BIOSPage2.jpg

    Memtest result with Slot 1 and 3 installed:
    http://i89.photobucket.com/albums/k2.../Slot1and3.jpg

    Memtest result with Stick 1 in Slot 1:
    http://i89.photobucket.com/albums/k2...tick1Dimm1.jpg

    Memtest result with Stick 1 in Slot 2: (ignore pass, I was playing with memtest...oh and i deleted the wrong picture by mistake, 1 pass had not yet been completed!!!)
    http://i89.photobucket.com/albums/k2...tick1Dimm2.jpg

    Memtest result with Stick 1 in Slot 3:
    http://i89.photobucket.com/albums/k2...tick1Dimm3.jpg

    Memtest result with Stick 1 in Slot 4:
    http://i89.photobucket.com/albums/k2...tick1Dimm4.jpg

    Memtest result with Stick 2 in Slot 1:
    http://i89.photobucket.com/albums/k2...tick2Dimm1.jpg

    Memtest result with Stick 2 in Slot 2:
    http://i89.photobucket.com/albums/k2...tick2Dimm2.jpg

    Memtest result with Stick 2 in Slot 3:
    http://i89.photobucket.com/albums/k2...tick2Dimm3.jpg

    Memtest result with Stick 2 in Slot 4:
    http://i89.photobucket.com/albums/k2...tick2Dimm4.jpg

    To surmise, RAM modules passed all the tests in 1 pass with exception to Test 7 (Random Number Sequence) which failed miserably. It is noted the error margin (?) is the same on every error with each stick in each slot.

    So where do I go from here?

    *I apologise for the utter crap photo taking from my semi-decent camera phone. I hope you can make it out, I left the resolution at maximum.

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    Registered User Yellowbeard's Avatar
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    Re: RAM failing memory diagnostic util

    What were your bios settings when you ran these tests? Also, did you run them on each module seperately?

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    Zzzzzzz sleepyhead's Avatar
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    Re: RAM failing memory diagnostic util

    Woah, quick reply.

    The first two pictures are my BIOS settings. I reverted to as much as possible to Auto/Default. Each picture is dictated that the first test was done with both modules, then subsequent tests were performed with single modules in each slot.

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    Registered User Yellowbeard's Avatar
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    Re: RAM failing memory diagnostic util

    Auto/Default is not going to get the job done on the RAM voltage. And, those pages are loading VERY slowly for me here in the US. Can you tell me what your settings were please? And, did you ever flash to that newer bios?

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    Zzzzzzz sleepyhead's Avatar
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    Re: RAM failing memory diagnostic util

    I need to goto work and make a dos bootable CD or USB stick...I don't trust my PC enough to even try making a bootable CD/USB stick, let alone try and flash through windows. BIOS will be flashed in due time (most likely tomorrow dependent on DOS BOOT device).

    I apologise for the big pictures.

    SLI-Ready Memory - Disabled (I enabled it once and it failed to POST so not going back there)
    CPU Operating Speed 2666 (333)
    FSB:Memory Ratio - Auto
    Mem (DDR2) - Auto
    Estimated DDR2 Data Rate - 800
    NB PCIe X16 Clock 100Mhz
    CPU Core Voltage - Auto
    DDR2 Voltage - 2.1V
    DDR2 REF Voltage - Auto
    CPU VTT Voltage - Auto
    NB Voltage - Auto

    Memory TIming - Auto
    tCL (Cas latency) - 5
    tRCD - 5
    tRP - 5
    tRAS - 18
    Command per clock - 2T
    Advanced memory settings:
    tRRD - 3
    tRC - 22
    tWR - 5
    tWTR - 9
    tREF - 7.8uS
    tRFC - 42

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    Registered User Yellowbeard's Avatar
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    Re: RAM failing memory diagnostic util

    At those settings your modules should pass with no errors in any test. If you believe the memory is at fault, we'll replace it. Try th e new bios and see what happens. If you have been thru 3 sets, I don't think it's the memory . You should check with ABIT.

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    Re: RAM failing memory diagnostic util

    Many thanks yellowbeard.

    I also doubt it is the memory at fault (especially 3 sets in a row).

    I'm researching how to do a CD Boot BIOS flash

    I'll move this along to the Abit forum and see if anyone there has ideas

    Thanks for your precious time.

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    Registered User Yellowbeard's Avatar
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    Re: RAM failing memory diagnostic util

    Go to www.bootdisk.com

    They have the tools you need to make a USB or CD based flash disk. Sorry I am not more help but I don't have much experience with that MOBO.

    These guys may be able to help also: http://forum.abit-usa.com/index.php

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    Re: RAM failing memory diagnostic util

    You have been more than helpful Yellowbeard

    Thank you for your assistance

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    Re: RAM failing memory diagnostic util

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    Re: RAM failing memory diagnostic util

    Quote Originally Posted by sleepyhead View Post
    Anyhow, my real question is...would upping the voltage to the notherbridge (above stock) help stabilise the RAM?
    It sure can - but only if its the NB at fault

    The memory controller on current Intel based boards is on the NB (unlike AMD's, which have it on the CPU). If this is struggling, the extra voltage can really help. I have to do it on my AB9 QuadGT for 4 DIMMS
    Last edited by Agent; 02-07-2008 at 02:17 AM.
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    Re: RAM failing memory diagnostic util

    In this case, you should not need more voltage to run at only DDR800. It could be a bad NB or, as hot as those 650i NBs get, it could be cooling.

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