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Thread: EX58-UD4P Overvoltage lights on




  1. #1
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    Default EX58-UD4P Overvoltage lights on

    Hi all -

    Running a core i7 920 (stock clocks) with Corsair Dominator CM3X2G1600C9D6 (OEM from Cyberpower) 1600 clock memory. Bios is version F8.

    With optimized default settings (XMP disabled) my memory runs at 1033, no voltage lights on the motherboard. As soon as I enable XMP (all other settings are still default), the L1 green overvoltage LED's come on for both CPU and DDR. Also, upon saving XMP to the BIOS, I get the following warning box:

    ---
    *** WARNING *** The following over voltage setting will reduce lifetime of CPU, DRAM or Chipsets.

    DRAM Voltage
    DRAM Termination
    Ch-A Data Vref
    Ch-B Data Vref
    Ch-C Data Vref
    ...
    ---

    Again, I haven't touched any of the above voltages or Vref settings, they're all on auto.

    Here's what the BIOS (MIT page) looks like with XMP Profile1 enabled:

    BCLK 133 (Default)
    Turbo Enabled (Default)
    XMP Profile1 (On)
    SPD [Auto]
    Mem Freq 1600 1600
    DRAM Timing [Auto]
    Profile DDRv 1.6V
    Profile QPIv 1.35V
    Timings 9-9-9-24-2T (on all 3 channels)
    Load Line Calibration [Off] (Tried on, doesn't make a difference)

    Here are some CPU-Z pages:

    CPU-Z & Gigabyte Core Voltage (Under load running Prime95)



    Memory profiles & Gigabyte DDR Voltage



    CPU-Z Memory Page



    Now for my question:

    Why is activating XMP putting both my CPU & DDR L1 overvoltage light on, and should I be concerned? System runs stable under stress tests with the XMP setting, memory passes 12 hours of memtest.

    Just one weird quirk I noticed, when waking from Vista sleep mode, my CAS latency timing goes from 9 to 4 (so the timings become 4-9-9-24) on my CPU-Z Memory page. If I do a full reboot they revert to 9-9-9-24.

    Anyhow, I don't want to mess with a BIOS flash unless you guys think F9 or F10 are genuinely better than F8. Again, everything seems to run okay, so I just need to know why those lights are on and if I should be concerned.

    Thanks!
    Last edited by spufaru; 08-20-2009 at 12:31 AM.

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: EX58-UD4P Overvoltage lights on

    I do believe they come on when you use anything above stock, just increase in amount and color as you go further. CPU Voltage LED would change due to the QPI/Vtt voltage changes made by XMP Settings, ram as well.

    CAS Latency to 4 is a Intel Chipset issue, nothing can be done. They have revised the chipset and X58A boards will be released soon.

    I advise you use BIOS F10a, I have this board and like F9c myself, but just have not used F10a yet do to me having to remain on F9c until I am finished up with a Mushkin review I am working on.

    I don't personally advise XPM but that is just me. If you want to use it you are fine, I just advise against it because there is no way some pre-programmed setting can know "Your CPU's" stable or correct QPI/Vtt voltage.

    Can you post a image of Easytune, advanced Tuner tab, page "Voltage I" so we can check to verify your DRAM Voltage, DRAM Termination, Ch-A Data Vref, Ch-B Data Vref, Ch-C Data Vref are correctly set

    *EDIT*

    Sorry, latest BIOS F10a here >>>
    http://forums.tweaktown.com/f69/giga...st-bios-28441/

    Please flash with Qflash, here is a guide >>
    http://forums.tweaktown.com/f69/bios...h-guide-27576/

  3. #3
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    Default Re: EX58-UD4P Overvoltage lights on

    Thanks for responding LSD, here's the ET6 Voltage I tab:


  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: EX58-UD4P Overvoltage lights on

    Thanks, all that is normal!

    If you want I can provide you with stock settings so you can manually set things, then you wont get the warning but the LED's will still come on though

  5. #5
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    Default Re: EX58-UD4P Overvoltage lights on

    Quote Originally Posted by Lsdmeasap View Post
    Thanks, all that is normal!

    If you want I can provide you with stock settings so you can manually set things, then you wont get the warning but the LED's will still come on though
    LSD - Sure, I'd love to have the stock settings for reference whenever you get a chance.

    Glad I found you guys here, thanks for the quick response!

  6. #6
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: EX58-UD4P Overvoltage lights on

    Anytime, I'm here to help!

    You will need to find your own settings for Vcore and QPI/Vtt, at stock you can safely leave the Vcore at Auto but I do advise you test and find your own stable QPI/Vtt and set that manually.

    Bit hard to find info based on OEM Model #'s for that ram, but I think I found them to be rated at 999-24 @ 1600Mhz 1.6V as noted in your SPD/XMP Image. You agree?

    These would be stock for your setup, find and test QPI/Vtt until you find a stable setting if you plan to run like this.

    Code:
    Advanced CPU Features:
    CPU Clock Ratio ................................ [20x]
    Intel(R) Turbo Boost Tech .................. [Enabled]
    CPU Cores Enabled ............................ [All]
    CPU Multi Threading .......................... [Enabled]
    CPU Enhanced Halt (C1E) ................... [Disabled] << Enable if you are not overclocking, or leave if you want the CPU to run at full speed always.
    C3/C6/C7 State Support .................... [Disabled]
    CPU Thermal Monitor ......................... [Enabled]
    CPU EIST Function ............................ [Disabled] << Enable if you are not overclocking, or leave if you want the CPU to run at full speed always.
    Virtualization Technology ................... [Enabled] << Disabled if you do not use Vmware or Virtual PC Programs
    Bi-Directional PROCHOT ..................... [Enabled]
    
    
    Uncore & QPI Features:
    QPI Link Speed .............................. x36 or 44x (Higher would require More QPI/Vtt)
    Uncore Frequency ..........................  (Always 2x memory Multi or 2x +1) so 12-14
    Isonchronous Frequency ..................[Enabled]
    
    
    Standard Clock Control:
    Base Clock (BCLK) Control ................ [Enabled]
    BCLK Frequency (MHz) ..................... 133
    PCI Express Frequency (MHz) ........... [100]
    
    C.I.A.2 [Disabled]
    
    Advanced Clock Control:
    CPU Clock Drive ..............................[800mV]
    PCI Express Clock Drive ................... [900mV]
    CPU Clock Skew ............................. [0ps]
    IOH Clock Skew ............................. [0ps]
    
    
    Advanced DRAM Features:
    Performance Enhance ...................... [Standard]
    Extreme Memory Profile (X.M.P) ......... [Disabled]
    System Memory Multiplier (SPD) ........ [AUTO] << Set 12 (12x133=1600Mhz)
    DRAM Timing Selectable (SPD) .......... [Manual]
    
    Channel A + B + C
    
    Channel A Timing Settings:
    ##Channel A Standard Timing Control##
    CAS Latency Time ......................9
    tRCD .......................................9
    tRP .........................................9
    tRAS .......................................24
    
    You may leave these below all on auto if you like.  If you want to manually set them please see the template thread linked in my signature for some tips and info on these settings and their rules.
    
    ##Channel A Advanced Timing Control##
    tRC ........................................  (Should be = tRAS + tRP or above for stability)
    tRRD .......................................
    tWTR ...................................... (Must be Write to Read Delay/Same Rank - (tWL + 4)
    tWR ........................................
    tWTP .......................................    (tWTP Must = tWR + tWL + 4)
    tWL ........................................   (tWL Must be CAS Latency -1)
    tRFC .......................................
    tRTP .......................................
    tFAW ......................................
    Command Rate (CMD) ................
    
    ##Channel A Misc Timing Control##
    Round Trip Latency ...................
    
    
    
    Advanced Voltage Control:
    
    CPU
    Load Line Calibration ................. [Disabled] Enabled is fine
    CPU Vcore ............................... Auto if not overclocking
    QPI/VTT Voltage 1.150v ............ 1.2-1.35 should be fine for this setup
    CPU PLL 1.800v ....................... Auto is fine if not overclocking
    
    MCH/ICH
    PCIE 1.500v ........................... 1.5-1.58 or Auto is fine if not overclocking
    QPI PLL 1.100v ....................... 1.14-1.24
    IOH Core 1.100v ..................... 1.14-1.24 (Auto may be fine at stock speeds, do note this will turn on another LED if you set above 1.8V- Just so you know since this was about LED's to begin with)
    ICH I/O 1.500v ....................... 1.5-1.58
    ICH Core 1.1v ........................1.14-1.2 (Additional LED Again)
    
    DRAM
    DRAM Voltage 1.500v .............. 1.58-1.62
    DRAM Termination 0.750v [AUTO]
    Ch-A Data VRef. 0.750v [AUTO]
    Ch-B Data VRef. 0.750v [AUTO]
    Ch-C Data VRef. 0.750v [AUTO]
    Ch-A Address VRef. 0.750v [AUTO]
    Ch-B Address VRef. 0.750v [AUTO]
    Ch-C Address VRef. 0.750v [AUTO]

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