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Thread: EX-UD5 & I7 920 OverClock Assistance




  1. #1
    Join Date
    Feb 2010
    Location
    Michigan
    Posts
    4

    Default EX-UD5 & I7 920 OverClock Assistance

    I have spent many hours trying to get my system stable at 3.9 - 4.0 Ghz but have bee unsucessfull. I can run Prime95 small FFTs consistently I have run up to 8 hours, I have not been able to run the blended test more than a couple of minutes and I have been able to complete approximately 1 hour on the large FFTs. When I run OCCT (Linpack) I always fail arround 5 minutes and 44 seconds. I am guessing it has something to do with my Ram or Ram settings. I have run Memtest 86 and ran through each of the 9 tests without errors. My system specs are: I7 920 D0 Stepping, Gigabyte EX58-UD5 Mobo, Noctura NH U12P SE CPU Cooler, 6G Tripple Channel OCZ Gold Memory OCZ3G1600LV6GK, 80 G Intel SSD, 1TB Seagate HD, 750W Corsair Power Supply, HAF 932 Case. Suggestions would be appreciated.

    <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
    Bios F12<o:p></o:p>
    Bios setup for 3.88 GHZ and OCZ Memory with 8,8,8,24,2T Timings<o:p></o:p>
    <o:p></o:p>
    CPUClock Ratio . . . . . . . . [21x}<o:p></o:p>
    CPU Frequency . . . . . . . . . 3.88 GHz (185 x 21)<o:p></o:p>
    Advanced CPU Features:<o:p></o:p>
    Intel(R) Turbo Boost Tech ... [Disabled] <o:p></o:p>
    CPU Cores Enabled ........... [All]<o:p></o:p>
    CPU Multi Threading ......... [Enabled]<o:p></o:p>
    CPU Enhanced Halt (C1E) ..... [Disabled] << <o:p></o:p>
    C3/C6/C7 State Support ...... [Disabled] <<<o:p></o:p>
    CPU Thermal Monitor ......... [Enabled]<o:p></o:p>
    CPU EIST Function ........... [Disabled] << <o:p></o:p>
    Bi-Directional PROCHOT ...... [Disabled]<o:p></o:p>
    Virtualization Technology ... [Enabled] << Running Vmware a Virtual PC programs<o:p></o:p>
    <o:p></o:p>
    Uncore & QPI Features:<o:p></o:p>
    QPI Link Speed ............... [x36]<o:p></o:p>
    Uncore Frequency ............. [x18](3348 Mhz)<o:p></o:p>
    Isonchronous Frequency ....... [Enabled]<o:p></o:p>
    <o:p></o:p>
    Base Clock (BCLK) Control . . [Enabled]<o:p></o:p>
    Advanced Clock Control<o:p></o:p>
    Standard Clock Control:<o:p></o:p>
    Base Clock (BCLK) Control .... [Enabled]<o:p></o:p>
    BCLK Frequency (MHz) ..........185<o:p></o:p>
    PCI Express Frequency (MHz) .. [100]<o:p></o:p>
    C.I.A.2 . . . . . . . . . . [Disabled]<o:p></o:p>
    Advanced Clock Control:<o:p></o:p>
    CPU Clock Drive ............[800mV]<o:p></o:p>
    PCI Express Clock Drive ... [900mV]<o:p></o:p>
    CPU Clock Skew .............. [0ps]<o:p></o:p>
    IOH Clock Skew .............. [0ps]<o:p></o:p>
    <o:p></o:p>
    Performance Enhance .... [Standard] << <o:p></o:p>
    System Memory Multiplier (SPD) [8] <o:p></o:p>
    Memory Frequency (Mhz) . . . . 1480<o:p></o:p>
    Dram Timing Selectable (SPD) . [Quick]<o:p></o:p>
    Profile DDR Voltage . . . . . . 1.5V<o:p></o:p>
    Profile QPI Voltage . . . . . . 1.15V<o:p></o:p>
    <o:p></o:p>
    Channel A+B+C Timing Settings:<o:p></o:p>
    CAS Latency Time .......... .7 [8] <o:p></o:p>
    tRCD ....................... 7 [8]<o:p></o:p>
    tRP ........................ 7 [8]<o:p></o:p>
    tRAS ...................... 16 [24]<o:p></o:p>
    Command Rate (CMD) . . . . . 1 [2]<o:p></o:p>
    <o:p></o:p>
    <o:p></o:p>
    Advanced DRAM Features:<o:p></o:p>
    Performance Enhance ............ [Standard] << <o:p></o:p>
    <S>Extreme Memory Profile (X.M.P) . [Disabled]<o:p></o:p></S>
    System Memory Multiplier (SPD) . [8] <<<o:p></o:p>
    Memory Frequency (Mhz) . . . . . 1480 <o:p></o:p>
    DRAM Timing Selectable (SPD) .. [Quick]<o:p></o:p>
    Profile DDR Voltage . . . . . .. 1.5V<o:p></o:p>
    Profile QPI Voltage . . . . . .. 1.15V<o:p></o:p>
    Channel Interleaving . . . . . . 6 [Auto]<o:p></o:p>
    Rank Interleaving . . . . . . .. 4 [Auto]<o:p></o:p>
    <o:p></o:p>

    Channel A Timing Settings:<o:p></o:p>
    ##Channel A Standard Timing Control##<o:p></o:p>
    CAS Latency Time ............. . 7 [8]<o:p></o:p>
    tRCD .......................... .7 [8]<o:p></o:p>
    tRP ............................ 7 [8]<o:p></o:p>
    tRAS .......................... 16 [24]<o:p></o:p>
    ##Channel A Advanced Timing Control##<o:p></o:p>
    tRC ....................... . . . . 32 <o:p></o:p>
    tRRD ........................ . . . 4 [Auto]<o:p></o:p>
    tWTR ....................... . . 4 [Auto]<o:p></o:p>
    tWR ........................... . . 8 [Auto]<o:p></o:p>
    tWTP ............................. 19 [Auto]<o:p></o:p>
    tWL ............................... 7 [Auto]<o:p></o:p>
    tRFC ......................... . . 60 [Auto]<o:p></o:p>
    tRTP ............................ . 4 [Auto]<o:p></o:p>
    tFAW ........................... . 16 [Auto]<o:p></o:p>
    Command Rate (CMD) ........ . . . . 2<o:p></o:p>
    <o:p></o:p>
    ##Channel A Misc Timing Control##<o:p></o:p>
    B2B CAS Delay . . . . . . . . . . [Auto]<o:p></o:p>
    Round Trip Latency . . . .. . . . 51 [Auto]<o:p></o:p>
    <o:p></o:p>
    Load Line Calibration ............. [Enabled]<o:p></o:p>
    CPU Vcore .................1.28125V [1.36250]<o:p></o:p>
    QPI/VTT Voltage . . . . . . 1.150V [1.32] <o:p></o:p>
    IOH Core . . . . . . . . . . 1.100V [Auto]<o:p></o:p>
    DRAM Voltage . . . . . . . . 1.500V [1.66]<o:p></o:p>
    <o:p></o:p>
    Advanced Voltage Control:<o:p></o:p>
    Load Line Calibration .... . . . [Enabled]<o:p></o:p>
    CPU Vcore .........1.28125V [1.36250}<o:p></o:p>
    QPI/VTT Voltage . . . 1.150V [1.32] <o:p></o:p>
    CPU PLL . . . . . . . 1.800V [1.86]<o:p></o:p>
    <o:p></o:p>
    MCH/ICH<o:p></o:p>
    PCIE . . . . . . .. . 1.500V [1.54] <o:p></o:p>
    QPI PLL . . . . . . . 1.100V [1.2] <o:p></o:p>
    IOH Core . . . . .. . 1.100V [1.22] <o:p></o:p>
    ICH I/O . . . . . . . 1.500V [1.5] <o:p></o:p>
    ICH Core . . . . . . . 1.1V [1.14] <o:p></o:p>
    <o:p></o:p>
    <o:p></o:p>
    DRAM VOLTAGE . . .. 1.500V [1.660] <o:p></o:p>
    DRAM Termination .. 0.750V [AUTO]<o:p></o:p>

  2. #2
    Join Date
    Jan 2010
    Location
    California, San Francisco Bay area
    Posts
    59

    Default Re: EX-UD5 & I7 920 OverClock Assistance

    Jeff,

    A few suggestions for your D0 i7 920 processor:


    Uncore Frequency ............. [x18](3348 Mhz)

    <o:p> make this [x16] = 2*8 (twice the RAM multiplier)
    </o:p>

    CPU Vcore .................1.28125V [1.36250]<o:p></o:p>

    this seems a bit too high, try with less Vcore such as your original 1.28125 V



    QPI/VTT Voltage . . . . . . 1.150V [1.32]
    <o:p></o:p>
    this seems OK, maybe 1.35V is better


    Channel A+B+C Timing Settings:<o:p></o:p>
    CAS Latency Time .......... .7 [8] <o:p></o:p>
    tRCD ....................... 7 [8]<o:p></o:p>
    tRP ........................ 7 [8]<o:p></o:p>
    tRAS ...................... 16 [24]<o:p></o:p>
    Command Rate (CMD) . . . . . 1 [2]<o:p>

    </o:p>
    just in case, you may try relaxing your RAM timings to: 9, 9, 9, 24, 2T

    You don't mention your system temperatures, but should I assume less than 75C max... ?


    good luck,
    Jure Z.
    i7 920 (D0) @ 4.05 GHz (193*21) | GA-EX58-UD3R Rev 1.6 | BIOS Rev FI
    6 GB Patriot Viper ELK DDR3 1600 9-9-9-24 T2 (V ram = 1.66V) | ATI Radeon HD 4890 1 GB
    Antec EarthWatts 750 W PS | Corsair H50-1 water cooler (push pull fans -> case exhaust mode) | Cooler Master HAF922 case
    Win XP Home 32 SP3

  3. #3
    Join Date
    Feb 2010
    Location
    Michigan
    Posts
    4

    Default Re: EX-UD5 & I7 920 OverClock Assistance

    Thanks for the suggestions. I actually started out with Vcore at 1.30 and stepped it up incrementally one step at a time time and with each step I failed OCCT (Linpack) or Prime95 Blended tests. I can not remember failing small ffts. I have also tried Uncore at 16, 17 and 18 because I had read some people recommending 2x ram multiplier + 1 or 2. I have not tried loosing my timings I will try dropping Uncore back to 16 and set my timings to 9, 9, 9, 24, 2T and see what happens. I will also try running just small ffts to see where that test says I am stable then try the blended and large ffts and OCCT Linpack again.

    The computer is folding 24/7 and never BSOD's at the current settings. Right now folding the temperatures are 68, 72, 74, 70. Max temps when running OCCT -Linpack with Vcore at 1.30625 were 76, 76, 73, 70 and I failed at 5 min 47 seconds. Max temps when running OCCT - Linpack with Vcore at 1.3812 were 83, 83, 79, 77 and I again failed at 5 min 47 seconds, this was the max VCore I tried. Any other suggestions?

  4. #4
    Join Date
    Feb 2010
    Location
    Birmingham,Great Britain
    Posts
    600

    Default Re: EX-UD5 & I7 920 OverClock Assistance

    thats alot of vcore for just over 3.8ghz,i run at 180x21 with 1.18750 cpu v,try setting all the advanced ram settings on auto exept for trfc i have mine set to 60,you can also try 8-8-8-26-1T or 8-8-8-28-1T timings also
    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

  5. Default Re: EX-UD5 & I7 920 OverClock Assistance

    Hello!

    I have a 920 C0 and although it needs more vcore and QPI voltages to run stable @ 4Ghz (211 x19), Uncore @ 3800Mhz (211 x18) and tested 100 min. under LinX, there's something you can learn from it. So, I was only able to get the 4Ghz stable when I pumped-up the QPI/VTT voltage (Uncore voltage) higher than the CPU vcore.
    Note that Performance Enhance is set to "Turbo" and my 1333Mhz are running @ 1688Mhz, 1,66v.
    I really think your CPU is not stable because the lower QPI/VTT Voltage

    So, first, follow JureZ advice and set the timings to 9-9-9-24 and 1,66v.

    Next, set vcore to 1,36v and the QPI/VTT to no less than 1,42v. If run tests stable, drop the voltages a bit, vcore first.


    Hope this helps.


    Johnny Rook
    System Components: Intel i7 920 C0 @ 4,0Ghz; Gigabyte EX58-UD5 (X58-EXTREME F12 BIOS); Sapphire HD5970 2GB OC Edition; Western Digital Blue 500GB; Seagate 7200.12 1000MB; 6GB Corsair 1333Mhz DDR3; DVD-RW LG; Corsair TX750W
    Watercooling System: EK-Supreme Skt 1366 WaterBlock + EK backplate Skt 1366; Kit EK-FB GAX58 WaterBlocks; Aqua-Computer AquagratiX 5970 WaterBlock; 360mm Thermaltake radiator; 360mm BI Stealth X-Flow radiator; Laing MCP355 pump; EK-DDC X-TOP rev.2 Plexi
    Danger Den Plexi E/S 1/2" reservoir; 4x A.C. Ryan UV 120mm; 3x Tacens Ventus PRO ICE 120mm; 2x NoiseBlocker Black Silent XE2 92mm; Liquid Cooling FESER Black; FESER tubing 3/8" ID and 5/8" OD; Enzotech Compression Fittings G 1/4

  6. #6
    Join Date
    Feb 2009
    Location
    Germantown
    Posts
    80

    Default Re: EX-UD5 & I7 920 OverClock Assistance

    whats up Jeff. I just got finished with a Eff. and performance OC(4ghz). Try this. I got 50 runs of LinX with these.
    Last edited by phillywood; 03-16-2010 at 09:45 AM.

  7. #7
    Join Date
    Feb 2010
    Location
    Michigan
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    4

    Default Re: EX-UD5 & I7 920 OverClock Assistance

    Quote Originally Posted by phillywood View Post
    whats up Jeff. I just got finished with a Eff. and performance OC(4ghz). Try this. I got 50 runs of LinX with these.
    Hi Phillywood I just have had no luck passing either OCCT (Linpack) or Prime 64 blended or Large ffts for any length of time on any number of combinations. 95% of the time I fail OCCT at 5 mins 45 seconds always the same time. I have run small ffts for 8 hours without a failure so at least from what I have read this leads me to believe it maybe a memory issue. I have run through all the Memtest86 tests and per recommendations I completed 5 passes of test 5 and at least 2 passes of all the other tests and they all passed. I can also run folding bigadv units without BSOD's I just haven't figured out the combination to get stable or I have a bad board or memory. My settings are basically at what I have listed in my initial post but I dropped Vcore all the way back to 1.3, put QPI/Vtt at 1.34 and bumped IOH to 1.24 and set my memory to 9,9,9,24,2T with the other memory settings on auto. This is where I ran 8 hours of small ffts. I have moved my QPI up and down from 1.30 to 1.38 and have droped my vcore to as low as 1.18750 with a QPI/Vtt at 1.30 but here I got a no boot. From there I started in again at Vcore at 1.28750 and QPI/Vtt at 1.30 where I was able to boot but could not run a minute of blended Prime 95. I did not run a test with small ffts at this setting but went to a Vcore of 1.3000/QPI/Vtt 1.34, changed my memory to 9,9,9,24 and bumped IOH to 1.24. Completed small ffts without an issues but only made it 7 mins through Large FFTs. I am going to be gone for a couple of weeks but am going to let the computer fold with the settings I have and see what happens. When I return I will continue to pursue this and try your settings also. Hopefully it is something I am just missing.
    I7 920 D0 Stepping, Gigabyte EX58-UD5 Mobo, Noctura NH U12P SE CPU Cooler, 6G Tripple Channel OCZ Gold Memory OCZ3G1600LV6GK, 80 G Intel SSD, 1TB Seagate HD, 750W Corsair Power Supply, HAF 932 Case

  8. Default Re: EX-UD5 & I7 920 OverClock Assistance

    You really do not need to pump-up the IOH voltages to reach the 4Ghz stable. The chipset X58 handles with 4Ghz just fine @ stock voltages (1.1v).

    Again, the problems were the CPU and QPI voltages. You'll need 1.42v QPI at least if you want to run your RAM @ 1600Mhz (CPU @ 4Ghz). Trust me on this. The only way to get it to run @ 4Ghz and low QPI voltages, LinX stable, is to underclock your 1600Mhz OCZ RAM 'cause the Uncore frequency drops.
    Next time you get a "no boot", check the CMOS Error code; if it shows "C1", the problem was the RAM; if the code led shows "88", then, most certainty, the problem were the voltages.


    Johnny
    System Components: Intel i7 920 C0 @ 4,0Ghz; Gigabyte EX58-UD5 (X58-EXTREME F12 BIOS); Sapphire HD5970 2GB OC Edition; Western Digital Blue 500GB; Seagate 7200.12 1000MB; 6GB Corsair 1333Mhz DDR3; DVD-RW LG; Corsair TX750W
    Watercooling System: EK-Supreme Skt 1366 WaterBlock + EK backplate Skt 1366; Kit EK-FB GAX58 WaterBlocks; Aqua-Computer AquagratiX 5970 WaterBlock; 360mm Thermaltake radiator; 360mm BI Stealth X-Flow radiator; Laing MCP355 pump; EK-DDC X-TOP rev.2 Plexi
    Danger Den Plexi E/S 1/2" reservoir; 4x A.C. Ryan UV 120mm; 3x Tacens Ventus PRO ICE 120mm; 2x NoiseBlocker Black Silent XE2 92mm; Liquid Cooling FESER Black; FESER tubing 3/8" ID and 5/8" OD; Enzotech Compression Fittings G 1/4

  9. #9
    Join Date
    Feb 2010
    Location
    Michigan
    Posts
    4

    Default Re: EX-UD5 & I7 920 OverClock Assistance

    Thanks Johnny Rock. Right now I was not trying to run at 1600 Mhz, but just trying to run at 3.8 - 4.0 stable. Where I am getting confused is that it appears some are hitting 4.0 with low Vcore (1.28 or lower) while others are at 1.35 or higher. Are you saying if I keep my memory around 1200 - 1400 Mhz I should be somewhere around 1.34 Vcore and 1.46 QPI/Vtt? I have tried numerous combinations but I have not pushed my QPI that high yet, I guess that could be my problem. When I get back I will try that. In the mean time I will drop my IOH voltage back down to 1.1.
    I7 920 D0 Stepping, Gigabyte EX58-UD5 Mobo, Noctura NH U12P SE CPU Cooler, 6G Tripple Channel OCZ Gold Memory OCZ3G1600LV6GK, 80 G Intel SSD, 1TB Seagate HD, 750W Corsair Power Supply, HAF 932 Case

  10. Default Re: EX-UD5 & I7 920 OverClock Assistance

    Quote Originally Posted by jef3680 View Post
    Thanks Johnny Rock. Right now I was not trying to run at 1600 Mhz, but just trying to run at 3.8 - 4.0 stable. Where I am getting confused is that it appears some are hitting 4.0 with low Vcore (1.28 or lower) while others are at 1.35 or higher. Are you saying if I keep my memory around 1200 - 1400 Mhz I should be somewhere around 1.34 Vcore and 1.46 QPI/Vtt? I have tried numerous combinations but I have not pushed my QPI that high yet, I guess that could be my problem. When I get back I will try that. In the mean time I will drop my IOH voltage back down to 1.1.
    As every overclocking insider could tell you, there aren't no magical formulas for oc'ing. Every systems are different and some are more overclockable than others. Luck is a major factor here. If you get lucky with your CPU, board and RAM, it's easier for you to overclock the system's components.
    The lower memory frequencies afects mainly the Uncore (QPI), so, yes, indeed, if you run your RAM @ 1200-1400 MHz, you'll need less QPI/Vtt voltage.
    However, you have 1600Mhz RAM sticks. If you are about to underclock them, you can decrease the RAM voltage if you want. Depending on timings, i.e. 8-8-8-20, you can set the memory voltage to 1,6v or so.
    Anyway, the correct voltages I just can't tell, it's up to you to find it out. Also, you don't need to set the Uncore multiplier to "Auto". In fact, you can back it down a step or two 'cause it won't affect that much the performance and it might had some oc'ing stability to your system, i.e. CPU @4Ghz (200 x20), RAM @ 1600Mhz and Uncore @ 3,8Ghz (200 x19). If you step down the Uncore to 200 x18 it won't boot 'cause it needs to be 2x the RAM frequency or a ratio of 2x +1 . If you set the RAM to 1400Mhz, you can set the Uncore to 2,8Ghz [200 x14, (2x1400)] or to 3Ghz [200 x15, (2x1400 +200)], therefore, needing less QPI voltage for both examples.

    Hope this helps,


    Johnny
    Last edited by Johnny Rook; 03-17-2010 at 09:23 PM.
    System Components: Intel i7 920 C0 @ 4,0Ghz; Gigabyte EX58-UD5 (X58-EXTREME F12 BIOS); Sapphire HD5970 2GB OC Edition; Western Digital Blue 500GB; Seagate 7200.12 1000MB; 6GB Corsair 1333Mhz DDR3; DVD-RW LG; Corsair TX750W
    Watercooling System: EK-Supreme Skt 1366 WaterBlock + EK backplate Skt 1366; Kit EK-FB GAX58 WaterBlocks; Aqua-Computer AquagratiX 5970 WaterBlock; 360mm Thermaltake radiator; 360mm BI Stealth X-Flow radiator; Laing MCP355 pump; EK-DDC X-TOP rev.2 Plexi
    Danger Den Plexi E/S 1/2" reservoir; 4x A.C. Ryan UV 120mm; 3x Tacens Ventus PRO ICE 120mm; 2x NoiseBlocker Black Silent XE2 92mm; Liquid Cooling FESER Black; FESER tubing 3/8" ID and 5/8" OD; Enzotech Compression Fittings G 1/4

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