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Thread: i7 Overclocking for Beginners

  1. #65
    Overclocking Since 1988 nightkhaos's Avatar
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    Re: i7 Overclocking for Beginners

    Quote Originally Posted by rsmarsha View Post
    I think I have the command rate the next one down after CAS latency, tRCD,tRP,tRAS. The next one is RAS to RAS delay, is that the same as command rate?

    Is there a program to see what my ram's set at? I can't see to find the RAM multiplier, though I do have an option to set RAM frequency, there is a 1604 option there. Should I set that?

    Sorry for all the questions but as my board isn't the one in the guide it's a bit confusing for me.

    I'm currently at 3.2 btw with domino on middle mode (adjusts fan as it needs to), turbo boost is still on though so it's moving it up to 3.4 a lot on OCCT. 20 mins into an OCCT test and max temp recorded is 68 degree's on coretemp.

    Turned turbo boost off and max cpu temp atm is 72 degree's with the domino on low speed. I set the ram to 1604 as I said above at 1.65v, cpu v is 1.2.

    Temp drops down to low 60's max at 3.2 with domino on middle settings.

    I also tried at 3g and max is 58 degree's.
    Sorry for the late reply. CPU-Z should be able to help you with RAM timings to check them. You'll want to turn Tubroboost off because it can cause stability problems at high overclocks. Those temps look fine, you don't want to exceed 80, but if you're below 70 that's even better.

    RAM timings on the P6T? Hmm. I have a friend who has a P6T who may be able to shed some light on this, I'll get some info off him later, unless someone else wants to interject?
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    i7 (Bloomfield) Overclocking Guide

    Quote Originally Posted by Spock
    I am not our father.

  2. #66
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    Re: i7 Overclocking for Beginners

    Thanks, had any news on this yet? Want to make sure my settings are right.

  3. #67
    Overclocking Since 1988 nightkhaos's Avatar
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    Re: i7 Overclocking for Beginners

    Quote Originally Posted by rsmarsha View Post
    Thanks, had any news on this yet? Want to make sure my settings are right.
    Okay. Got it. Row to Row Delay, or tRRD, is not the command rate, as far as I can tell.
    Last edited by nightkhaos; 09-11-2009 at 03:21 PM.
    Desktop (Cy): Intel Core i7 920 D0 @ 3.6GHz, Prolimatech Megahalems, Gigabyte X58-UD5, Patriot Viper DDR3 6GiB @ 1440MHz 7-7-7-20 2T, EVGA NVIDIA GTX 295 Co-Op, Asus Xonar D2X, Hauppauge WinTV Nova TD-500, 2x WD Caviar Black 1TB in RAID 0, 4x Samsung EcoDrive 1.5TB F2s in RAID 5, Corsair HX 750W PSU, Coolermaster RC-1100 Cosmos Sport (Custom), 4x Noctua P12s, 6x Noctua S12Bs, Sony Optiarc DVD+/-RW, Windows 7 Professional Edition, Dell 2408WFP, Mirai 22" HDTV

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    i7 (Bloomfield) Overclocking Guide

    Quote Originally Posted by Spock
    I am not our father.

  4. #68
    Overclocking Since 1988 nightkhaos's Avatar
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    Re: i7 Overclocking for Beginners

    rsmarsha. I aplogise that I have been so busy as to help you directly and quickly with this.

    Anyways, tRRD or to Row to Row Delay is not the command rate, and I recommend you reset that to default/auto.

    In the P6T BIOS the Command Rate option is called DRAM Timing Mode (under AI Tweaker--> DRAM Timing Control). I had to ask my friend cmndr_andi to have a look at his BIOS because he has a P6T Deluxe V2.

    The RAM timings, normally listed in the form X-X-X-XX are tCAS, tRCD, tRP, tRAS respectively.

    The memory controler for the i7 is capable of handling 1T command rate, but 2T tends to be way more stable.
    Desktop (Cy): Intel Core i7 920 D0 @ 3.6GHz, Prolimatech Megahalems, Gigabyte X58-UD5, Patriot Viper DDR3 6GiB @ 1440MHz 7-7-7-20 2T, EVGA NVIDIA GTX 295 Co-Op, Asus Xonar D2X, Hauppauge WinTV Nova TD-500, 2x WD Caviar Black 1TB in RAID 0, 4x Samsung EcoDrive 1.5TB F2s in RAID 5, Corsair HX 750W PSU, Coolermaster RC-1100 Cosmos Sport (Custom), 4x Noctua P12s, 6x Noctua S12Bs, Sony Optiarc DVD+/-RW, Windows 7 Professional Edition, Dell 2408WFP, Mirai 22" HDTV

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    i7 (Bloomfield) Overclocking Guide

    Quote Originally Posted by Spock
    I am not our father.

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    Re: i7 Overclocking for Beginners

    Thanks, I'll adjust that tonight.

    You don't have to apologise, the fact your willing to answer my questions at all is great.

    If I could work out how to give thanks to a post here I would do.

    I also couldn't find the multiplier for the RAM instead there was a setting to set the actual RAM speed, I'm assuming that the setting in question actually changes the multiplier depending on what you set the RAM speed to. I set it to 1604, I can't remember the name of the setting I'll have a look tonight and post it here.

    I need to install CPU-Z to check the RAM and will do so after I set the above settings correctly. I believe CPU-Z will show me the command rate so I can verify it's working.
    Last edited by rsmarsha; 10-11-2009 at 10:16 AM.

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    Re: i7 Overclocking for Beginners

    Ok here is my CPU-Z output.

    I'm a bit concerned about the frequency, I have 1600 ram and in the mobo settings is set to 1604.





    Shouldn't the 749 be 1600?

    Also in the CPU tab what does QPI link mean? It's at 3598.
    Last edited by rsmarsha; 10-11-2009 at 08:50 PM.

  7. #71
    Overclocking Since 1988 nightkhaos's Avatar
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    Re: i7 Overclocking for Beginners

    Quote Originally Posted by rsmarsha View Post
    Ok here is my CPU-Z output.

    I'm a bit concerned about the frequency, I have 1600 ram and in the mobo settings is set to 1604.



    Shouldn't the 749 be 1600?

    Also in the CPU tab what does QPI link mean? It's at 3598.
    It's fine. The freq reported by CPU-Z is half the actual (the hint is in the name, DOUBLE DATA RATE). Your QPI is also fine, it's just the current freq of the link. It goes up under load conditions.
    Desktop (Cy): Intel Core i7 920 D0 @ 3.6GHz, Prolimatech Megahalems, Gigabyte X58-UD5, Patriot Viper DDR3 6GiB @ 1440MHz 7-7-7-20 2T, EVGA NVIDIA GTX 295 Co-Op, Asus Xonar D2X, Hauppauge WinTV Nova TD-500, 2x WD Caviar Black 1TB in RAID 0, 4x Samsung EcoDrive 1.5TB F2s in RAID 5, Corsair HX 750W PSU, Coolermaster RC-1100 Cosmos Sport (Custom), 4x Noctua P12s, 6x Noctua S12Bs, Sony Optiarc DVD+/-RW, Windows 7 Professional Edition, Dell 2408WFP, Mirai 22" HDTV

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    i7 (Bloomfield) Overclocking Guide

    Quote Originally Posted by Spock
    I am not our father.

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    Re: i7 Overclocking for Beginners

    Ah thanks, so I shouldn't be trying for 800?

  9. #73
    Overclocking Since 1988 nightkhaos's Avatar
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    Re: i7 Overclocking for Beginners

    Quote Originally Posted by rsmarsha View Post
    Ah thanks, so I shouldn't be trying for 800?
    Pah. Sorry, I totally forgot about this post. Yes, you should be trying for 800MHz according to CPU-Z. But expect some variance.
    Desktop (Cy): Intel Core i7 920 D0 @ 3.6GHz, Prolimatech Megahalems, Gigabyte X58-UD5, Patriot Viper DDR3 6GiB @ 1440MHz 7-7-7-20 2T, EVGA NVIDIA GTX 295 Co-Op, Asus Xonar D2X, Hauppauge WinTV Nova TD-500, 2x WD Caviar Black 1TB in RAID 0, 4x Samsung EcoDrive 1.5TB F2s in RAID 5, Corsair HX 750W PSU, Coolermaster RC-1100 Cosmos Sport (Custom), 4x Noctua P12s, 6x Noctua S12Bs, Sony Optiarc DVD+/-RW, Windows 7 Professional Edition, Dell 2408WFP, Mirai 22" HDTV

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    i7 (Bloomfield) Overclocking Guide

    Quote Originally Posted by Spock
    I am not our father.

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    Re: i7 Overclocking for Beginners

    Anyone got any experience overclocking an i7 920 with a scythe mugen 2 cooler? I was hoping to reach atleast 3.6 on it, but my temps at stock seem far too high to even think about overclocking.

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    Re: i7 Overclocking for Beginners

    Quote Originally Posted by Hazzwald View Post
    Anyone got any experience overclocking an i7 920 with a scythe mugen 2 cooler? I was hoping to reach atleast 3.6 on it, but my temps at stock seem far too high to even think about overclocking.
    Make sure the cooler is fitted properly and you have decent airflow through the case ?
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    Re: i7 Overclocking for Beginners

    Tried a couple of resits, and the case is well ventilated, maybe it needs lapping? Was just wondering if anyone had managed 3.6+ on a scythe mugen 2

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    Re: i7 Overclocking for Beginners

    Hey

    I bought my i7 rig today, exactly the same parts to whats in the guide.

    I basically followed them word for word and its worked pretty well!

    I am currently stress testing it using Prime95 at 3.8ghz and memory at full 1600mhz. The Vcore does drop a bit to 1.18 when under load and I thought this would kill the system but it doesnt!

    Temperatures (when I just have 2 quiet case fans on) 39 Idle and 68 Full load
    Temperatures (when I just have 2 quiet case fans on as well as another 120mm side fan) 35 Idle and 60 Full load

    I do have the Thermalright Ultra-120 Extreme heatsink/fan as well.

    Many thanks to your guide and I still cant beleive it worked first time. Im wondering if I could drop the vcore lower to get temps down, might aswell give it a shot!

    PS: my 1st go at overclocking

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    Re: i7 Overclocking for Beginners

    Nice guide =) thx

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    Re: i7 Overclocking for Beginners

    Wow, excellent guide dude.

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    Re: i7 Overclocking for Beginners

    In reference to my earlier posts in this topic a while ago. I have refreshed my motherboard bios and had to redo my OC settings. I noticed that when I redid my RAM settings I've set the voltage to 1.65 which is in the red, is this correct?

    I have started getting blue screens now and again, not sure it's related to my OC settings but I ran a memory diag in windows and it says there are memory problems. Any ideas?

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