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Thread: GA-EX58-DS4 not detecting channel C




  1. #1
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    Default GA-EX58-DS4 not detecting channel C

    Hello all, I'm new to this forum :p

    I have a memory problem with my GA-EX58-DS4. I have encountered a thread where a few users have the identical issue and they had to RMA their boards...I have an unreplied to support ticket with GB already. I am really hoping there is a fix as I believe it is broken code or something at the bios level...But barring that advice on the best way to do an RMA with Gigabyte would be greatly appreciated.

    Right off the bat I should mention this is due to flashing my bios from f5f to f11...though I am certain I flashed correctly. I used a USB drive and Qflash, and loaded optimised defaults. No problems were encountered. Previous to the flash triple channel was running fine at 1580, 6x1 GB, 190 BCLK. All voltages STOCK, except for Vcore, which is even only at 1.34, a little less than intels warranty spec for my i7 920 @ 3.8 ghz. Yes...I lucked out on my proc. All torture tested with prime 95 and stable. DRAM at 1.5v as suggested for the ram.

    Basically channel C is broken. If I put all my ram in, 6x1GB Aenon Xtune DDR3-1600 CL9 at the rated speed (1580 with my 190 bclk), it wont post. A restart will produce a screen saying that my system was unstable from overclocking, and four gigs will be detected. If I remove the memory from channel C, 4 gigs is still detected, but I can have it running at the old stable OC, 1580mhz (which isnt actually OC for the ram...it's rated slightly higher.) Oddly, with all the slots populated, it will set one timing for the ram in channel C, the first one, the other values are -. CPUZ sees it as 6gb running in triple channel, and DMIinfo sees it as well, though it says something about bank 4&5 for channel C, whereas channel a and b show their own banks...I have no idea what that means but I was looking for differences between the working channels and channel C. Windows (Vista x64) will see 6GB but task manager will only see 4. I have checked my socket for bent pins, tried reseating the heatsink a couple times, made sure it wasn't on too tight. Of course I have tested all my ram in the working slots and they are fine. I have flashed to older and newer BIOS. Older versions of the bios will have every timing set for the ram in channel C, except "turnaround time" which is -. But post on old bios will still show 4gb despite that.

    Any help would be greatly appreciated, thanks for reading my lengthy post.


    Quote Originally Posted by Lsdmeasap
    Where do you live first of all, and I can direct you to where you need to go to setup a RMA

    Flashing from F5 to F11 should not cause any issues, provided you did it safely and nothing went wrong, as you mentioned all sounds good.

    All voltages stock is a problem, especially at 190 Bclk.

    Missing memory can be several things, most often this is caused by bent CPU socket pins or a poorly seated CPU. In your case though I think you may be falling into one of the other causes categories, which is incorrect voltages and settings. Incorrect amounts of Uncore, QPI/Vtt, and Vdimm can cause this easily. This is something I can fully reproduce on my end anytime by using wrong settings, and since you mentioned all voltages stock I suspect this is the problem and we should look into that before you go as far as checking your CPU socket pins.

    Please copy your initial post, my reply, and your new reply all into a new thread so I can further help you. Please grab a template from my signature and include in that post your full specs (Including BIOS Version and Ram link) and current problematic full settings.

    Hey, thanks for responding. I should mention that even at all stock settings, immediatly after flashing for example, the ram still isn't detected. I don't have time at the moment, on my way to work, but tonight I'll post my exact bios config as requested.

    The company that makes my RAM went bankrupt in during the economy meltdown. The sticker on it reads: 1GB DDR3-1600 CL9 PC3-12800U-9 AXH78UD10-16. Again it is Aenon XTUNE. Anyway sorry I'm in a hurry, will post everything you asked tonight.
    Last edited by Lsdmeasap; 03-24-2010 at 01:23 AM.

  2. #2
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    Default Re: GA-EX58-DS4 not detecting channel C

    Well detection at default or not, could still depend on QPI/Vtt and Vdimm voltages. Does it detect properly at stock, if you set your own memory multiplier, then Uncore 2x the memory multi, then QPI/Vtt to 1.35, and Vdimm to 1.66?

    When you get back home, please also add a screenshot of CPU-z showing the SPD Tab, thanks.

    You may be looking at incompatible memory, or bent CPU socket pins, but lets check a few things first. Do you by chance have any other DDR3 memory, even one stick would be fine, or can you borrow one at work or from a friend?

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    Default Re: GA-EX58-DS4 not detecting channel C

    Ok I have everything.... Heres a paste of my bios


    anced Core Features [Press Enter]:
    Intel(R) Turbo Boost Tech................[Disabled]
    CPU Cores Enabled........................[All]
    CPU Multi-Threading......................[Enabled]
    CPU Enhanced Halt (C1E)..................[Enabled]
    C3/C6/C7 State Support...................[Disabled]
    CPU Thermal Monitor......................[Enabled]
    CPU EIST Function........................[Enabled]
    Bi-Directional PROCHOT...................[Enabled]
    QPI Clock Ratio..........................[Auto]
    QPI Link Speed........................[6.84]
    Uncore Clock Ratio....................[auto]
    Uncore Frequency.........................3800MHz
    >>>>> Standard Clock Control <<<<<
    Base Clock (BCLK) Control................[Enabled]
    BCLK Frequency ..........................[190]
    Extreme Memory Profile (X.M.P.)..........[Profile1]
    System Memory Multiplier (SPD)...........[Standard?]
    Memory Frequency (MHz)...................1520
    PCI Express Frequency (MHz)..............[Auto]
    C.I.A.2..................................[Disabled]
    >>>>> Advanced Clock Control <<<<<
    CPU Clock Drive..........................[ 800mV]
    PCI Express Clock Drive..................[ 900mV]
    CPU Clock Skew...........................[ 0ps]
    Advanced Memory Settings:
    Extreme Memory Profile (X.M.P.)..........[Profile1]
    System Memory Multiplier (SPD)...........[8.0]
    Memory Frequency (MHz)................1520
    Performance Enhance (SPD)............. [disabled]
    DRAM Timing Selectable (SPD)............ [auto]
    Profile DDR Voltage ..................1.5
    Profile QPI Voltage ..................auto
    Channel Interleaving.....................[6]
    Rank Interleaving........................[4]
    >>>>> Channel A & B ----------------------------------Channel C only sees Cas lat at 9, rest are -
    Channel A Timing Settings [Press Enter]:
    Cas Latency Time........................[9]
    tRCD....................................[9]
    tRP.....................................[9]
    tRAS...................................[28]
    >>>>> Advanced Timing Control
    tRC....................................[37]
    tRRD...................................[5]
    tWTR...................................[6]
    tWR....................................[12]
    tWTP...................................[24]
    tWL....................................[8]
    tRFC...................................[88]
    tRTP...................................[6]
    tFAW...................................[24]
    Command Rate (CMD).................. 1 [2]
    >>>>> Misc Timing Control
    B2B Cas Delay..........................[-] .
    Round Trip Latency.....................[55]
    Channel A Turnaround Settings [Press Enter]:
    Different DIMMs........................[Auto] -------I dont see this when i go into turnaround settings....
    Different DIMMs........................[Auto]
    On The Same Rank.......................[Auto]
    >>>>> Channel A Writes Followed By Writes ------- 9 9 9
    Different DIMMs........................[Auto]
    Different DIMMs........................[Auto]
    On The Same Rank.......................[Auto]

    Advanced Voltage Settings:
    ******Mother Board Voltage Control ******
    Voltage Types............Normal......Current
    --------------------------------------------
    >>> CPU
    Load Line Calibration...................[Level 2]
    CPU Vcore..................1.25..[1.34375xv]
    QPI/VTT Voltage..........1.100v.....[1.x00v]
    >>> MCH/ICH
    PCH Core....................1.050v.....[Auto]
    CPU PLL......................1.800v.....[Auto]
    >>> DRAM
    DRAM Voltage..............1.500v.....[1.5v]
    DRAM Termination.........0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]

    Miscellaneous Settings:[/SIZE]
    Isochronous Support....................[Enabled]
    Virtualisation technology..............[Enabled]
    USB Storage Detect ....................[Disabled] Located In Integrated Peripherals Page - havent changed this from its default.
    Last edited by Decrypted; 03-24-2010 at 03:48 PM.

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    Default Re: GA-EX58-DS4 not detecting channel C

    The previous screenshot was with all six dimms installed, and I had to lower my BCLK to get it to post. Left everything else the same...I think were borked :(. I tried going to stock settings with your suggested settings and it would post, but still only detected 4 gigs. I honestly do not see how it could be bent pins, as this problem presented itself after I had seated my cpu and used it with 6 gigs in triple channel fine for nearly a year. I did not remove the processor or reseat it since the problem occured, and, since this problem started, I have checked the pins not once but twice just to be sure, and obviously reseated the proc twice as well. At one point, the same problem occured with channel B. The way I fixed channel B was by removing the dimms, and reflashing the bios. But this is not working for C.

    With the f5f bios, it was all completely stable and torture tested, bclk 190, all intel turbo crap off (HTT on...) with the only voltage change being vcore to 1.34. Ram at 1.5. That is why I so desperatly want to fix this board instead of RMA...it was a dream OC pairing that required little in increased voltages.

    Anyway, this screenshot is with 4 dimms installed. I dont have another stick of DDR3 readily available to test...but considering all the ram works tested in the known working slots, and the fact that previously it was all detected/working, with respect I think that is irrelevant.

    I still hope it doesn't come to this but, regarding the proper RMA process, I'm in Canada. I hope it is still under warranty.
    Last edited by Decrypted; 03-24-2010 at 12:14 PM.

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    Default Re: GA-EX58-DS4 not detecting channel C

    Something is still bothering me, it doesn't seem right, so i took some screenshots to show you what I mean...

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    Default Re: GA-EX58-DS4 not detecting channel C

    Notice the Bank Connections figures? Slots 0-4 have their own respective bank. But the last two, which would be channel C i presume, show RAS 4&5. RAS 6 is never mentioned...

    #5 and #4 both show these values. I am pretty sure this is the same even if I populate channel, but I do remember DMIinfo saw the memory present. I can double check for you if you like.

    Like I said it doesnt seem right to me but I do not know exactly what it means.

  7. #7
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    Default Re: GA-EX58-DS4 not detecting channel C

    You could also have a faulty IMC in your CPU? You would still be under warranty with Gigabyte, it's a three year warranty.

    Canada does RMA through GA California, so aside from customs at the border your RMA should be fairly quick if it comes down to that.

    You would setup a RMA here and input Canada
    RMA

    I see your Uncore/NB is way off what it should be, explained below. This could be the problem for sure, even though you used it in the past it may be making your memory or CPU slowly fail

    Try these settings and see if things are corrected, using the latest BIOS

    Adanced Core Features [Press Enter]:
    Intel(R) Turbo Boost Tech................[Disabled]
    CPU Cores Enabled........................[All]
    CPU Multi-Threading......................[Enabled]
    CPU Enhanced Halt (C1E)..................[Enabled] << Disable for testing for now
    C3/C6/C7 State Support...................[Disabled]
    CPU Thermal Monitor......................[Enabled]
    CPU EIST Function........................[Enabled] << Disable for testing for now
    Bi-Directional PROCHOT...................[Enabled]

    QPI Clock Ratio..........................[Auto] << Set x36 manually
    QPI Link Speed........................[6.84]
    Uncore Clock Ratio....................[auto] << Set x16 manually, this may be part of your problem. Normal amount is 2x memory mutli or 2x +1-2, auto is using x20 as shown by 3800/190 = 20
    Uncore Frequency.........................3800MHz

    >>>>> Standard Clock Control <<<<<
    Base Clock (BCLK) Control................[Enabled]
    BCLK Frequency ..........................[190]
    Extreme Memory Profile (X.M.P.)..........[Profile1] << Disabled
    System Memory Multiplier (SPD)...........[Standard?] << Set x8 for 1520Mhz
    Memory Frequency (MHz)...................1520
    PCI Express Frequency (MHz)..............[Auto] << Set 100
    C.I.A.2..................................[Disabled]

    >>>>> Advanced Clock Control <<<<<
    CPU Clock Drive..........................[ 800mV]
    PCI Express Clock Drive..................[ 900mV]
    CPU Clock Skew...........................[ 0ps]

    Advanced Memory Settings:
    Extreme Memory Profile (X.M.P.)..........[Profile1] << Disabled
    System Memory Multiplier (SPD)...........[8.0]
    Memory Frequency (MHz)................1520
    Performance Enhance (SPD)............. [disabled] << Set Standard, or Extreme (Sometimes in X58 Standard can cause more issue than extreme so try both)
    DRAM Timing Selectable (SPD)............ [auto] << Expert, set each channel main timings one by one including command rate 2T

    Profile DDR Voltage ..................1.5
    Profile QPI Voltage ..................auto
    Channel Interleaving.....................[6]
    Rank Interleaving........................[4]
    >>>>> Channel A & B ----------------------------------Channel C only sees Cas lat at 9, rest are -
    Channel A Timing Settings [Press Enter]:
    Cas Latency Time........................[9]
    tRCD....................................[9]
    tRP.....................................[9]
    tRAS...................................[28]

    >>>>> Advanced Timing Control (ALL AUTO If not already)

    tRC....................................[37] Auto
    tRRD...................................[5] Auto
    tWTR...................................[6] Auto
    tWR....................................[12] Auto
    tWTP...................................[24] Auto
    tWL....................................[8] Auto
    tRFC...................................[88] Auto
    tRTP...................................[6] Auto
    tFAW...................................[24] Auto
    Command Rate (CMD).................. 1 [2] Set this 2T as you have for each channel
    >>>>> Misc Timing Control
    B2B Cas Delay..........................[-] Auto/disabled
    Round Trip Latency.....................[55] Auto


    All these can be left in Auto as well *
    Channel A Turnaround Settings [Press Enter]:
    Different DIMMs........................[Auto] -------I dont see this when i go into turnaround settings....
    Different DIMMs........................[Auto]
    On The Same Rank.......................[Auto]
    >>>>> Channel A Writes Followed By Writes ------- 9 9 9
    Different DIMMs........................[Auto]
    Different DIMMs........................[Auto]
    On The Same Rank.......................[Auto] *

    Advanced Voltage Settings:
    ******Mother Board Voltage Control ******
    Voltage Types............Normal......Current
    --------------------------------------------
    >>> CPU
    Load Line Calibration...................[Level 2]
    CPU Vcore..................1.25..[1.34375xv]
    QPI/VTT Voltage..........1.100v.....[1.x00v] << An issue, you MUST set this. For 1520Mhz/3000-3200 QPI try 1.25-1.4
    >>> MCH/ICH
    PCH Core....................1.050v.....[Auto] << What is this? X58 does not have PCH core?
    CPU PLL......................1.800v.....[Auto]

    MCH/ICH
    PCIE 1.500v ........................... 1.5-1.54
    QPI PLL 1.100v ....................... 1.2-1.24
    IOH Core 1.100v ..................... 1.14-1.24 (1.2-1.24 often best)
    ICH I/O 1.500v ....................... 1.5
    ICH Core 1.1v ........................ 1.14-1.16

    >>> DRAM
    DRAM Voltage..............1.500v.....[1.5v] << Set 1.6 for now
    DRAM Termination.........0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]

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    Default Re: GA-EX58-DS4 not detecting channel C

    Hey

    Is the possibility that it is just the cpu? Is there a way to test that?

    Going to try your settings now.

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    Default Re: GA-EX58-DS4 not detecting channel C

    Well...I tried all your settings. No dice. Oddly, afterwards, I took the ram out of channel C, left qpi x36 uncore x16, and left qpi/vtt ioh core voltages higher as suggested, and it posted...but bluescreened on windows boot a few times, even when i tried safemode and loading from the disc.

    Machine_Check_Error

    I should have written the error down but I didnt...so im like crap maybe i bricked this board somehow, went back put everything to stock...and it booted.

    I'll consider the RMA but I would really dislike being without a mobo for that long. Might just buy a new one. Can I be fairly confident it is not the proc?

  10. #10
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    Default Re: GA-EX58-DS4 not detecting channel C

    can i ask what type of cooler your using?check its not overtightened as that will give you ram faults
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
    1xsamsung 750gb hard drive-win7 ultimate 64
    1xsamsung 750gb hard drive-windows xp pro 32
    Ati x1950 pro gpu
    Logitech X-530 5.1 Speakers
    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

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