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Thread: Overclocking e8500 + UD3R




  1. #31
    Chike is offline Senior Member
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    Default Re: Overclocking e8500 + UD3R

    Quote Originally Posted by creamsoda View Post
    wow? 100c is the ABSOLUTE max. There's a difference.
    There is no other max to TJmax LOL

    Quote Originally Posted by creamsoda View Post
    now you're just arguing with yourself.. The guy (Dr.Paneas) asked if his temps were too dangerous for 24/7 use.

    Then you replied, and pretty much told him (or implied) that his temps are too hot, which isn't true at all since IBT is a 30min-1hr test, not 24/7.
    Then I made myself clear the second time. Not knowing his usage pattern I posted a general information about safe temps for 24/7 use. The letters I, B, and T, do appear in my post (in that order,) but never in close proximity.

    Lets not argue for nothing

  2. #32

    Default Re: Overclocking e8500 + UD3R

    There is no other max to TJmax LOL
    First of all, you're the one who gave us the link... and according to that link the E8500's Tcase max is 74c. If the Tcase max is 74c, then Tjmax is 79c using common sense. Incase you didn't know, it's impossible to reach 100c tjunction without going over 74c tcase.

    That link is really old and there were discussions over it. And from those discussions that I've read, ppl said that there is a tjmax and a tj absolute max.


    and for the record, I did not start this argument, so don't tell me not to argue. It was YOU who posted a reply to my post and said "i wonder how far you read".
    Last edited by creamsoda; 07-16-2009 at 12:18 AM.


    Core2Duo E8500 E0 @4.25GHz (500x8.5)
    | Windows 7 RC Build 7100 | Visiontek HD4850 OC 685/1100
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    GA-EP45T-DS3R | 4Gb (2x2Gb) 1333MHz Patriot DDR3 | 1.14TB (640+500gb) WDC Green
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    Screenshots:
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  3. #33
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    Default Re: Overclocking e8500 + UD3R

    Ok, guys. I am the one who need help here :p

    I finally manage to complete 24 loops of Test 5 (Memtest86) using tRD 13--> 8.
    I cannot set it to 7 though.

    I think 8 performance level is ok.

  4. #34

    Default Re: Overclocking e8500 + UD3R

    The tRD setting of 8 is going to be the best you will get at 500FSB, 7 is is not possible unless the FSB is under 460.

    Regarding the discussion about the temperatures, CompuTronix's assertions are flawed due to the incorrect assumption the CPU diode reports the Tcase temperatures. According to experiments involving actual Tcase measurements with with accurate temperature sensors installed at the Intel specified location (top center of the IHS) , the the CPU diode temperature does not represent the Tcase. It is not even close. Here are couple of photos from my own experiment. A Q6600 clocked at 3.2G with stock HSF at idle and at IBT load. The Fluke meter is reporting the measured Tcase and the Everest "CPU" temperature is the CPU diode temperature.


    Source: A direct Tc measurement experiment on a G0 Q6600 - Guru3D.com Forums

    My experiment along with similar experiments conducted by others seem to indicate the TcaseMax specified by Intel occurs at or within a few degrees of the TjMax. Based on this, I personally limit the core temperatures to 20 degrees below the Tjmax for 24x7 use (at which the Tcase will be 10 degrees below the TcaseMax) and 5 degrees below the TjMax when load testing with CPU intensive linpack based software (i.e., LinX, IBT)
    QX9650 batch L739A761/ GA-EP45-UD3P/ Kingston KHX9200 4x1G

  5. #35
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    Default Re: Overclocking e8500 + UD3R

    Great!

    Let me ask you something else. Should I enable any BIOS option for cooler system ? eg EIST.

    Or this is going to mess around all the things and finally screw up the whole overclocking try ?

  6. #36

    Default Re: Overclocking e8500 + UD3R

    woah.. dude those Q6600 temps are in the 90's, you actually run IBT with those temps?

    I don't know how accurate your testing is.. but a lot of ppl do say that the CPU temp is the Tcase temp.

    I don't think a 3rd party temp sensor is as accurate as the built in sensor of the CPU lol


    Let me ask you something else. Should I enable any BIOS option for cooler system ? eg EIST.
    Most ppl say to disable this. I have no problem with it enabled tho. I can still run Prime95 for hours with it enabled.
    Last edited by creamsoda; 07-16-2009 at 07:03 AM.


    Core2Duo E8500 E0 @4.25GHz (500x8.5)
    | Windows 7 RC Build 7100 | Visiontek HD4850 OC 685/1100
    Gigabyte
    GA-EP45T-DS3R | 4Gb (2x2Gb) 1333MHz Patriot DDR3 | 1.14TB (640+500gb) WDC Green
    Antec Earthwatts 500w |
    Antec Nine Hundred
    Screenshots:
    [1][2][3][4][5][6]

  7. #37

    Default Re: Overclocking e8500 + UD3R

    EIST and C1E works well at the stock setting, reducing both the CPU multi and the Vcore at low activity states to reduce the power consumption. Monitoring the system power consumption using the Kill-a-Watt meter, my total system power is reduced around 10% when the EIST and C1E kicks in. But no such benefit is to be had when the system is overclocked with the Vcore elevated above the stock. When the system is overclocked, the EIST/C1E are pretty much worthless. The CPU multi continues to drop at low load states but not the Vcore. According to my Kill-a Watt meter. there is only about .5W to be gained by enabling EIST/C1E when overclocked. IMHO, best to leave them disabled.
    QX9650 batch L739A761/ GA-EP45-UD3P/ Kingston KHX9200 4x1G

  8. #38

    Default Re: Overclocking e8500 + UD3R

    Quote Originally Posted by creamsoda View Post
    woah.. dude those Q6600 temps are in the 90's, you actually run IBT with those temps?
    Yes and if you click the link I provided you will see that I pushed further until the cores began throttling. Only at that point the Intel specified 71C Tcase exceeded.
    QX9650 batch L739A761/ GA-EP45-UD3P/ Kingston KHX9200 4x1G

  9. #39
    Chike is offline Senior Member
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    Default Re: Overclocking e8500 + UD3R

    Quote Originally Posted by gampamu View Post
    According to my Kill-a Watt meter. there is only about .5W to be gained by enabling EIST/C1E when overclocked.
    Thats millions of watts saved daily by overclockers all around the world. Save earth!

  10. #40

    Default Re: Overclocking e8500 + UD3R

    A greater power conservation would result simply by turning the computer off when not in use (as I do).
    QX9650 batch L739A761/ GA-EP45-UD3P/ Kingston KHX9200 4x1G

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