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Thread: System Freezing Constantly GA-EP45-DS3L




  1. #11
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    Default Re: System Freezing Constantly

    wow, thanks for that input I'll def. try that when I get a chance. I'm going to assume that it'll provide stability for 1x2gig, 1x1gig and 2x1gig as well. Am I correct?

  2. #12
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    Smile Re: System Freezing Constantly

    It may to be too early, but !!!
    I'm not sure whether it was the reduction of MCH voltage from 1.1 to 1.05 as suggested by ed1 or whether it's the new memory, but my comptuer successfully passed memtest86 2.1 once with 0 errors (before I rebooted myself) on 1 stick of 4-4-4-12 1gig corsair xms memory running under the exact same timings/voltages I posted immediately prior. My friend has my 2x2 gig sticks and he'll be running memtest to check them out. Hopefully they turn out ok and I can retweak the voltages/timings for them to work with my system. At least now I know that it's actually possible to get my system to run stable. The memory, although 4-4-4-12 @ 2.1V, was running at 5-5-5-18 @ 1.9V (my 2gig sticks' settings) The only other thing I changed was setting the MCH voltage to 1.05. THANK YOU ed1!!! THANK YOU Lsdmeasap!!! Although I'm definitely not out of the woods yet, I can at least see some glimmer of hope for this system. I won't be able to test it hard until tuesday, but hopefully I'll have my 2x2 gig sticks back by tomorrow. First I'll try to run one stick with the same settings and run memtest a singly pass or two then I'll try running with both sticks on the settings Lsdmeasap suggested earlier in the thread. Hopefully that MCH 1.05V setting did the trick!

  3. #13
    ed1 is offline Member
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    Default Re: System Freezing Constantly

    jqp122, you are very welcome. I am certainly no expert in this area, but just from watching these forums and from my own very painful experience with the GA-EP45-DS3L board (including unnecessary RMA's of the board and RAM twice), I think the MCH core voltage reduction is for some reason the key to stability.

    Also, as Lsdmeasap mentioned, you should update to the latest bios - which is version F10 now. And, I don't know if you could change the title of this thread to include the GA-EP45-DS3L model number of this board, but if you could it would be more helpful to other forum readers.

    Lsdmeasap, this is just one of many cases where the MCH core voltage reduction worked instantly. Have you received any information from Gigabyte on this problem? I wonder if it is affecting other boards as well.
    Last edited by ed1; 11-21-2008 at 09:29 AM.

  4. #14
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    Default Re: System Freezing Constantly

    Nice to see you got some stability for now. Let us know how the rest of your testing goes, you will likely need more mch with the 2x2, but test long and hard with what you are using now before you decide

    No ed1 I have not spoke with them about it, as I have yet to test on my end and seen only a few users and certain BIOS's that do it.

    I do try to remember to suggest that though on these boards, but I do sometimes forget. So each time you see it post so I keep being reminded

    I will edit the title to mention board name here

  5. #15
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    Unhappy Re: System Freezing Constantly GA-EP45-DS3L

    My memory passed twice on my friend's rig. He gave me his identical sticks which also passed twice (memtest86 v 2.10). I'm going to stick in the 4 gigs with ur suggested settings, soon, one at a time, first.

    Update:
    My friends memory sticks were freezing on me, even with MCH at 1.05V, but that was with no alterations from the 1gig testing. I eventually got to run memtest without freezing when I lowered my MCH voltage even more to .95V (i didn't see 1.00 available). Memtest passed, no errors first pass, but the 2nd pass yielded two errors in test three. I have no idea how to read memtest results, but the errors occur at the same 8-bit value with the same mistake. After running test three for a while, here's what I got (first two errors are from the standard testing):

    Code:
    Tst|Pass|   Failing Address       |   Good   |   Bad  |  Err-Bits | Count |Chan
    3     2     0007f9c1b00 - 2041.0MB  40404040  00404040  40000000     1
    3     2     0012fa59600 - 4858.5MB  40404040  00404040  40000000     2
    3     3     00000a89500 -   10.5MB  40404040  00404040  40000000     3
    3     0     0007fa84580 - 2042.2MB  40404040  00404040  40000000     4
    3     5     0007fb71a00 - 2043.0MB  40404040  00404040  40000000     5
    3     5     000cf930900 - 3312.0MB  40404040  00404040  40000000     6
    3     7     0007fab2d00 - 2042.1MB  40404040  00404040  40000000     7
    I'm really REALLY hoping it's just a voltage issue and that my friend's ram isn't messed up. The error only seems to be occuring at the same bit values, not the same addresses. The addresses are somewhat similar becuse those are the addresses the test is at when it sends that bit value through to the ram (I'm assuming). I'll increase the ram voltage and look for MCH core voltage 1.00V and see if that eliminates errors. The only thing that is NOT auto in advanced DRAM timings is CMD rate which is set to 2. Please advise on how to continue. Thanks again for getting me this far, at least!!!
    Last edited by jqp122; 11-22-2008 at 11:08 AM. Reason: Update

  6. #16
    Lsdmeasap's Avatar
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    Default Re: System Freezing Constantly GA-EP45-DS3L

    Are you testing single or 4Gb above? Ya, same bit is bad, sounds like it could be a bad stick if that is a single test.

    Please do test stock MCH (For single stick) and 1.2-1.3 for 2x2/4x1 as well, just to be sure your initial stability in lowering it was not a false positive

  7. #17
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    Default Re: System Freezing Constantly GA-EP45-DS3L

    The test above was for 2x2Gig =4gigs. I didn't have time to remove one and test a single stick, but I might today. 2x2Gig at 1.05V MCH was freezing as was 1.24V, even with increased advanced timings. At those settings, however, the freezing always occured at test 4 and test three never gave any errors (ran it about 5 times at different voltages at and above 1.05). I'll try to also flash bios to the latest sometime next week.

  8. #18
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    Default Re: System Freezing Constantly GA-EP45-DS3L

    Are you testing single or 4Gb above? Ya, same bit is bad, sounds like it could be a bad stick if that is a single test.
    Look again Lsd ;) that test always shows those bits as errors (if it finds them) because of the type of test pattern. Anyway the problem is at all different addresses that span BOTH the sticks, ie 10.5MB all the way up to 2041MB & 3312MB to 4858.5MB.

    Jqp122:- I couldn't see from your template if you had set tRFC to LSDme's suggestion of anywhere between 52-62? Personally i would set it to 56 for 4GB of DDR2.
    Last edited by VorLonUK; 11-22-2008 at 10:36 PM.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  9. #19
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    Default Re: System Freezing Constantly GA-EP45-DS3L

    Excellent suggestion. I just tested each stick individually with same voltage/timgins and ran test 3 up to 17 passes with no errors. The timings were all set to "auto" except for cmd rate which was at 2. I'll change tRFC to 56 from the Auto of 42

    Update: Just ran test 3 with tRFC at 56 a bunch of times (like 2 hrs) and still got lots of errors. I'm running on 1 stick now since I didn't get errors when I tested just one stick. Any other suggestions? My memory multiplyer is still at 2.40B (manually set) should that be changed? I'll change it to 3.20B as per Lsdmeasap's first response. Hope it works.

    By the way, reducing MCH core voltage to below .95V = cycle of reboots. System didn't start up, took out battery to reset bios.
    Last edited by jqp122; 11-23-2008 at 02:04 AM. Reason: Update

  10. #20
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    Default Re: System Freezing Constantly GA-EP45-DS3L

    If you have any other strap versions other than 2.40B ie A,C,D - try those.
    If you increase the mem multiplier to 3.20, you'll be running your 800Mhz ram at 1066 (assuming your FSB remains the same) - which might be ok, but seeing as you are getting errors at the stock frequency, you really need to sort that aspect out first.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

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