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Gulftown, Bloomfield, Lynnfield, Clarkdale, SB Overclocking Guides (1155/1156/1366)

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  • Psycho101
    replied
    Re: Gulftown, Bloomfield, Lynnfield, Clarkdale Overclocking Guides (1156/1366)

    Problem is, finding "Max Bclk" and then testing it with three runs of LinX that pass don't mean you've found a "Stable" max Bclk, just one that's stable for 3 runs of LinX.

    I've tried guides like this before and they just don't pan out howI'd expect. Not on Socket 775, 1156, 476, 754, 939, 940 or AM2. One tests each "Maxed" component for a couple of LinPak runs, then puts the maximums all together and the system fails either an extended LinX run or fails Prime. This means I've just wasted several hours fannying around raising frequencies by minute amounts, booting, testing, rebooting, entering the BIOS etc. For me there are better faster and more effective ways.

    As for backtracking, if the above scenario plays out, you're still going to have to back track. There really isn't much back tracking to be done though, especially with Lynfield. There are only a few settings and voltages to tweak. They have a fixed Uncore Multi, so all that could possibly be the problem are:
    Vcore
    QPI/VTT
    CPU PLL
    VDIMM
    RAM Timings

    If you've left the RAM alone, as I have then you can remove the last two from the list.

    When I said "I can at least be using a relatively stable over clocked system within hours of a build." I meant 2 hours tops, "relative meaning it'll pass 20 runs of LinX. When I have the time I'll then reduce voltages incrementally as far as possible. Then it's time to run Prime. 12 Hours of both Large and Small FFT, followed by 24 hours of Blend and then the extraction of some large RAR files of different file sizes. After all that the only real test of "stability" is to use the machine.

    I actually don't like the word "Stability", it's a misnomer. There's no such thing as a "100% stable OC". One can only prove stability in a certain scenario such as "24 hour Prime Stable" or "LinX 50 runs stable". I've litterally had times when a system will pass Prime for 24 hours and complete 50 runs of IBT/LinX but will not extract a large RAR file without insisting the RAR is corrupt, or won't install programs from DVD without throwing up CRC errors. Again, backtracking is minimal, as experience usually wins out.

    I'm not saying that guides like this don't have a place, they do. Like I said, you can't write down knowledge gaind from years of practical experiance based on good judgement, you have to write down a "First do this, then do that" format because that's what a guide is. Me writing a guide by saying "Increase the Bclk to X because you've used this board before with this CPU combo and know within a tight range of MHZ what is possible" would be both foolish and useless because the reader will likely have little to no experience at over clocking if they are seeking to read a guide on the subject.

    Leave a comment:


  • miahallen
    replied
    Re: Gulftown, Bloomfield, Lynnfield, Clarkdale Overclocking Guides (1156/1366)

    Originally posted by Psycho101 View Post
    Doing this also means that when I'm not actively over clocking I can at least be using a relatively stable over clocked system within hours of a build.
    Following my guides (to the T) from start to finish should take roughly 8 hours.

    I sympathize with your arguement, that is how I OC all the time for benching, but not when I'm OCing a 24/7 rig....in that case, your arguement is not logical....it's just guesswork. If you booted up for the first time with the settings which you believe should be about stable (as you suggest)....but it's not stable, then you'll have no idea for certian what is causing the instability. You are left to back-track and troubleshoot things one at a time anyway (the point of my method), or make guesses based on your past experience or advice you'd heard. This type of troubleshooting is MUCH more time consuming.

    Based on what you've said, I cannot comment on your past experiences with LGA775...but I can say it was a much different beast. I have aleady had dozens of users reporting back about success using this guide....IT WORKS! Try it :)

    Leave a comment:


  • Psycho101
    replied
    Re: Gulftown, Bloomfield, Lynnfield, Clarkdale Overclocking Guides (1156/1366)

    Definitely very well written, clear, concise and ideal for the beginner as a good explanation of the various settings, voltages and values are given.

    Just to make it clear, I'm not knocking an individual's OC methods but , however I must say, in all honestly that isolating components one by one has never been anything but a big fat waste of time for me. From AMD64 single core systems, to X2 dual cores, socket 775 P4, Core2 Duo, Core 2 Quad and now i5 760 I have never been able to first find the absolute max of a certain component, then another and another and end up having them all work at the isolated max speeds with any form of stability what so ever. I could have been unlucky, but that's my experience.

    To give an example: my last system consisted of an EP45-UD3P, E7400 and 4GB of Corsair DDR-1066. The FSB using this CPU topped out at 462MHz (I still have all this written down in the mobo manual in the "notes" section). The RAM was more than happy to run at DDR-1180 ish with the CPU multi dialled down and the FSB/RAM multi being tweaked upward. Putting all this together however was impossible. I already knew that the CPU was capable of at least 3.8GHz on air with 1.45V as I bought it as a known quantity. However after considerable effort, it just was not possible to lower the CPU multi and get to an approximate 3.8GHz by adjusting the FSB to its "Max stable frequency". It turned out that the "Max my FSB will run at" is not that at all but merely "the max my FSB will run at when everything else is dialled down, which is a bit useless as I'm not going to EVER be using a 6x multiplier and sub DDR1 speed RAM".

    Maybe I'm impatient, but I prefer to OC by feel. I know with a reasonable level of accuracy what all day OC I should be able to achieve with a given group of components. I also know that RAM over clocking is rarely all that productive in that it makes very little real world non synthetic difference when you consider the somewhat limited OC headroom on most modern kits at sensible 24/7 voltages. I'm not saying this is the right way for everyone to do it, and also those with limited experience may want to take it a bit slower. Having said that, I already have my i5 760 running 4GHz 12 hours Prime Large FFT stable. It took a couple of restarts to tweak voltages and the same amount of initial tests using IBT to arrive at rough voltages of 1.3V QPI/VTT, 1.9V PLL and 1.3250V Vcore with LLC on. Ram is being run at the rated 1.65V (1.66V in BIOS ofc), just underthe rated speed due to a Bclck of 191 and a RAM multi of 8 (CPU multi is 21). Now I know that these settings are somewhat "stable" as far as 12 hours of prime are concerned I can first concentrate on upping the CPU speed further while staying within my personal limits of 85-90c core temp while Priming and a max Vcore of 1.4V with LLC on. Note that if temps stay low, I may go above 1.4V if it seems worthwhile. After that and when time allows I'll try a max Bclck while maintaining at least 4GHz on the CPU. All these "stable" overclocks will be saved as profiles.

    Doing this also means that when I'm not actively over clocking I can at least be using a relatively stable over clocked system within hours of a build.

    Leave a comment:


  • Darkje
    replied
    Re: Gulftown, Bloomfield, Lynnfield, Clarkdale Overclocking Guides (1156/1366)

    Viewed the clarkdale part quickly, and it seems to be a reasonable guide. There is also some parts I don't like too much, but in general it's okay.

    What I don't like is that he is aiming quite high, the part where anything below 105c is okay for him and using IBT for testing, but that's my conservative opinion, irl. it might be valid.

    Leave a comment:


  • Lsdmeasap
    replied
    Re: Gulftown, Bloomfield, Lynnfield, Clarkdale Overclocking Guides (1156/1366)

    For sure, the guide we have now is getting old :)

    Thanks

    Leave a comment:


  • miahallen
    replied
    Re: Gulftown, Bloomfield, Lynnfield, Clarkdale Overclocking Guides (1156/1366)

    Awesome, just what this forum needed
    You're welcome

    Leave a comment:


  • Gulftown, Bloomfield, Lynnfield, Clarkdale, SB Overclocking Guides (1155/1156/1366)

    Many thanks to Miahallen for taking the time to put these guides together!!

    He's an avid overclocker around the community, and the GOOC 2009 North American overclock champion. He just published a few very nice guides on overclocking with the latest Gigabyte motherboards and hopes that they may help everyone to obtain their goals.


    Intel Core i3, i5, and i7 – Buyers Guide


    Step Overclocking Guide – Bloomfield and Gulftown


    3 Step Overclocking Guide – Lynnfield


    3 Step Overclocking Guide – Clarkdale


    3 Step Overclocking Guide - Sandy Bridge *New*


    If you have any questions or comments on his guides feel free to post them here and I'm sure they will be answered!


    Thanks again for all your hard work Miahallen!!
    Last edited by Lsdmeasap; 01-05-2011, 11:14 PM.
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