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Finding impossible to overclock a I7 920 Bloomfield Revision CO/C1 without temp +80C

Discussion in 'Overclocking & Cooling' started by Pidge, Jan 12, 2013.

  1. Pidge New Member

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    My System
    Intel i7 920 @2.67 GHz Revision CO/C1
    Gigabyte GA-EX58-UD5
    Awards Bios (F13)
    Cool Master TX3
    Corsair Vengeance CMZ12GX3A1600C9
    Samsung HD753LJ ATA Device
    NVIDIA GeForce GTX 660 Ti
    Corsair TX650 Enthusiast
    2.67GHz @Optimised Default BIOS Settings Overclocking to 3.2GHz
    CPU Clock Ratio 20x 20x
    Intel SpeedStep ™ Tech Not in BIOS
    Intel Turbo Mode Tech Auto Enabled
    CPU Cores Enabled All All
    CPU Multi Threading (The Rest Enabled) Enabled Enabled
    BCLK Frequency 133 160
    PCIE Frequency AUTO 100
    DRAM Frequency (DDR3) 1066Mhz 1280Mhz
    DRAM CAS Latency 8 (AUTO) 8
    tCD 8 (AUTO) 8
    tRP 8 (AUTO) 8
    tRAS 20 (AUTO) 24
    Cpu Voltage (Rest AUTO) 1.25 (AUTO) 1.1
    QPI/Vtt
    DRAM Voltage (Rest AUTO) 1.5 (AUTO) 1.64
    Load-Line Calibration (Rest AUTO) Disabled Enabled
    Cpu Temp (EasyTune6) 38 43
    Core #0 (Core Temp 1.0 RC4) 42 47
    Core #1 (Core Temp 1.0 RC4) 43 48
    Core #2 (Core Temp 1.0 RC4) 43 48
    Core #3 (Core Temp 1.0 RC4) 41 47
    See below temps Running PRIME 95
    Cpu Temp (EasyTune6) 60 61
    Core #0 (Core Temp 1.0 RC4) 75 75
    Core #1 (Core Temp 1.0 RC4) 75 75
    Core #2 (Core Temp 1.0 RC4) 74 74
    Core #3 (Core Temp 1.0 RC4) 74 74
    As soon as I overclock higher with increased voltage the temps go above 80C and I get booted out of windows. also if I set the memory to run at its correct speed of 1600 MHz that increases the temps, I have tried several different settings at 3.8GHz but none seem to work with lower temps, I keep the voltage low I have boot problems or memory dump blue screens, or booting out of windows, any suggestions would be appreciated, oh I have just read several posts about it being a nightmare to overclock the i7 920 bloomfield CO/C1 revision, is this true? Can anyone help with possible setting for the next level of overclocking, thanks
     
    Last edited: Jan 12, 2013
  2. bmaverick

    bmaverick

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    Did you install the CPU yourself? If so, how was the thermal paste applied? Sometimes something so mechanical can be an issue vs. BIOS or software related.

    Another question to search out, the I7-920-BF, does the B revisons run better or cooler?
     
  3. Pidge New Member

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    Hello, no I didn't install cpu, Edwards Martin Williton installed the cooler master cooler, thanks
     
  4. OneMoar

    OneMoar

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    tx3 is a cheap cooler you get what you pay for
    you need a better cooler period
    I would't use a TX3 on a stock AMD system let alone a overclocked i7 ....
    you are gonna need a better cooler and thats all there is to it
    something in the 40 to 60 USD range should be good
     
    de.das.dude, Pidge and MT Alex say thanks.
  5. MxPhenom 216

    MxPhenom 216 Corsair Fanboy

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    yeah, that cooler might be holding you back. But what are the temperatures under load at stock clocks? When I had a 920 at 4.0GHZ it ran at about 70c under load with my megahalem cooler.
     
  6. OneMoar

    OneMoar

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    the tX3 is a cutdown Hyper212 and a hyper 212 is barely sufficient for a 2500K@ stock
    sufficient=under 75c @ load
     
    Last edited: Jan 14, 2013
  7. ...PACMAN...

    ...PACMAN...

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    I think Edwards Martin Williton should have installed a better cooler lol.

    But seriously, you are going to need alot better cooling for a chip like that when it comes to overclocking it. Do some research on it and you will also learn a thing or two in the process.

    Good luck.
     
    Last edited: Jan 14, 2013
  8. LDNL

    LDNL

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    The C0/1 OCd poorly and ran hot. Then theres the bottom of the range cooler that youre using which might be an upgrade over stock but it just doesn't cut it when overclocking a chip that has a 130W TDP.
     
  9. Sliver Victor New Member

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    don kno if tiss relevent, but when I first ran my CM Hyper EVO, I forgot to take the prtective film off the bottom of cooler before installing ti and it ran I little hot. It's fine now, properlly installed in artic silver and no prtective film. Even the old 80mm fan keeps her pering nicely.
     
  10. Mr McC

    Mr McC

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    Have you tried disabling hyperthreading to see how big an impact this makes on temperatures?
     
  11. Pidge New Member

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    thanks for all of the suggestions, coolmaster tx3 review.jpg I looked at the review on hardware secrets to see how well this cooler performed against other coolers, it seemed to perform middle of the road, not the best or the worst

    what I did notice is that is does run hotter in my system than when tested in the review, but I do have a very small cramped office without much air or ventilation

    I will turn hyper threading off and see if that makes a difference

    could anyone possible suggest a good cooler to use with my system?
     
    Last edited by a moderator: Jan 15, 2013
  12. animal007uk

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    Not having a moan at you but please use the edit function rather than multiposting, Saves someone else bringing it up :)
     
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  13. Tatty_One

    Tatty_One Super Moderator Staff Member

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    C0 stepping 920's came in a huge variety of binning quality, I had one until 2 month's ago that I ran 24/7 at 4.1gig with HT on but with very good Air, many were just hot!

    I too would suggest better cooling, however you should still be able to get 3.6gig out of that cooler (if not already, get another 120mm fan on so you have a dual push/pull setup), my suggestions to acheive 3.6gig would be firstly (I am assuming you are getting a 21x multiplier with your Turbo enabled, and therefore EIST is enabled and you have your windows power setting to "performance"?), use NO AUTO settings for key voltages, instead.......

    1. Set BClk to 172
    2. Set VCore to 1.3V
    3. Set QPI/VTT to 1.3V
    4. Set QPI to auto (if not already)
    5. leave RAM on auto at this stage but manually set voltage to one increment above specs (this should show as a 2:8 multi in CPU-Z)
    6. Set uncore to twice the speed of your ram (you will see the speed when you select the multi) Do not leave on auto.
    7. Enable Load line Callibration (not auto)
    7. leave other volts to auto for time being.

    If it boots, leave it 5 minutes in windows, then startup Realtemps and check idle temps...... then get back and report. If you use the "optimised" overclock settings, they will often pump in far more voltage than is actually required, instability is often with these chips not jus down to voltage levels but to other settings.
     
    Last edited: Jan 15, 2013
  14. THE_EGG

    THE_EGG

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    I used to have an i7-920, I can't remember what revision it was but I got it when the i7s first came out. I tried OCing it with a Zalman CNPS-9900ALED and I think from memory I only managed around ~3.5Ghz without ramping up the fan speeds too much or it overheating. About 75-80C is what I remember being fairly normal temperatures whilst gaming at that OC and about 85C-90C whilst testing with prime95. Note: this was with hyperthreading enabled.

    Good luck with the OC, just don't expect tooo much out of the older i7s. I agree with other people though, you might want to think about upgrading your cooling as the TX3 is fairly low end.

    As far as coolers go, if you have a lot to spend an Antec 920 or Corsair H100i will be nice. Or high-end air cooling you would be looking at Noctua D14 or Zalman CNPS-11X (I have tried the Zalman on a friends computer running an i7-930 @ stock with the low noise resistor added and max temps were about 60C running prime95 with 28C ambient).
     
  15. theubersmurf

    theubersmurf

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    Mine stops overclocking without serious additional voltage/high temps at 3.6 GHz, though I got a notoriously bad batch.
     
  16. DRDNA

    DRDNA

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    I have played around with several 920's and all were the lesser of the bunch meaning they were CO's. I have never had any issue getting stable at 4GHZ and my personal one runs 4.2GHZ 24/7.....and has been for 5years or so. I can get max temps up to 93 but that with all 8 threads at 100%....My CPU is still going strong with no issues. I would recommend at least a V8 cooler for good clocks.

    Edit: I have also found that the early 920's can run up in to the low 90's and as long as they are stable they will have no issue with these temperatures.
     
  17. Pidge New Member

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    It did boot, left it in windows for at least 5 mins, idle temps went up to 55C an increase of 8C from 3.2GHz, when I ran prime 95, the temps went up to 85C and rising, @3.2GHz the temps were about 75C running prim95


     
  18. OneMoar

    OneMoar

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    Noctua NH-D14
    coolermaster V8
    xigmatek darknight
    Prolimatech Megahalems Rev B
    Thermaltake Frio
    or for water cooling (recomended)
    wait for swiftek to launch there H220 AIO
     
  19. Pidge New Member

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    Pidge Finding impossible to overclock a I7 920 Bloomfield Revision CO/C1 without te

    When disabling hyper threading there is a big impact on temps, driving down the temps from 75C to 66C, where and when is hyper threading needed?


     
  20. MxPhenom 216

    MxPhenom 216 Corsair Fanboy

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  21. Tatty_One

    Tatty_One Super Moderator Staff Member

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    If you do much multithredded work such as encoding/decoding etc, otherwise if you mainly game, surf the web, watch vids etc then the 4 cores are enuff, you will also be able to drop the VCore lots too, I could not run any higher than 4.2gig with HT on with my old C0 on air, but I could run 4.44gig with HT disabled.
     
  22. LAN_deRf_HA

    LAN_deRf_HA

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    I had one of the worst examples of these chips, hit 95c no matter what cooling, and I tried a bunch of stuff. Glad I ditched it.
     
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  23. anonymous6366

    anonymous6366

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    if you get a new cooler, that Noctua NH-D14 is a beast haha
     
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  24. Pidge New Member

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    inding impossible to overclock a I7 920 Bloomfield Revision CO/C1 without temp +80C

    I am internally grateful, these settings actually work, still runs hot but I disabled hyperthreading to get the temp down to an acceptable level, thanks a lot


     
    Last edited by a moderator: Jan 17, 2013
  25. Tatty_One

    Tatty_One Super Moderator Staff Member

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    If you have disabled HT you should be able to significantly reduce your VCore also, that will in turn further reduce temps, otherwise keep VCore and overclock higher!
     

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