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Thread: OC'ing my first CPU: i7 2600K




  1. #11
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    Default Re: OC'ing my first CPU: i7 2600K

    Got it.

    So in my tests with Vcore fixed, noticed my VID was around 1.38. Does that mean I'm doomed to have a high Voffset if I find a "nice low" Vcore of around 1.355? Example of course, but saw mixed comments on what VID high or lower can help with OCing.

    Should I be concerned more with my Voffset or voltage spikes? Or is this simply a case to see based on a Voffset underload, what minimum LLC I need to keep it at my target Vcore?
    Thanks
    Last edited by ped; 02-22-2012 at 02:48 PM.
    ------------------------------==================[ Current Rig - Still tweaking ]==================---------------------------------
    CPU:
    Intel i7-2600K @ 4.6GHz, 1.36v-load Mobo: ASRock P67 EXTREME4 GEN3 SATA 6Gb/s USB 3.0 ATX RAM: Corsair Vengence 16GB 1600Mhz DDR3
    GPU: Sapphire Radeon HD 7970 3GB SSD: Samsung 830 Series 256GB SATA 6.0Gb/s SSD HDD: Seagate Barracuda 1TB PSU: SeaSonic Platinum-1000 1000W 80 PLUS
    Optical Drive: SONY - Interal DVD 24x - ad-5280S - sata Case: Cooler Master Storm Trooper Cooler: Thermalright SilverArrow CPU Cooler
    Sound: Creative Sound Blaster X-Fi Titanium Fatal1ty PCI-E x1 Monitor: ViewSonic 27" vx2753mh-LED running in 1920x1080p @ 60Hz

  2. #12
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    Default Re: OC'ing my first CPU: i7 2600K

    you just dont want too high an llc so that it uses more than needed cpu voltage i find its best to use a sub 1.2v cpu voltage offset,mines at 1.7v with offset or dvid of +0.005v,that with llc on high is around 1.36v under 100% load,idle it stays below 1v
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
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    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
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    Xfx Pro 750w silver rated Psu 80+
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  3. #13
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    Acebmxer is offline Gigabyte Elite
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    Default Re: OC'ing my first CPU: i7 2600K

    Quote Originally Posted by ped View Post
    Just to clarify for me a bit, what do you mean by lowering the amount used? Lowering the LLC? I read about this offset several times in several posts, and although I understand the concept, no idea what levers we are talking about. If you could break it down for me a bit, would be great.

    Thanks much Wazza

    EDIT: Ahhhh, I finally get it. Once I find my Vcore voltage, I then switch settings from Vcore fixed to Vcore offset, and I base it off the VID! Finally! I see what we mean now!!

    I also realized that my LLC was way too low and my Vdroop was preventing me from finding my real voltage... so will need to start over again.

    A few wrap up questions:
    1.) My multiplier is at 46 (that's ok), however my BCLK is only 99.8.. which means my core spead never goes above 4.590 GHz. Is that because of the "Spread Spectrum" being enabled? Or related to something else?
    2.) How do I find out how much the LLC is applying to my voltage and if it has "spikes"? Is that determined what I lock my Vcore at (prior to putting it on offset), and how much Vdroop there is? Or is there another way to measure LLC?

    Cheers.
    If you want BCLK to read 100.0 set it to 100.2 or 100.3 and it should read 100
    Main Rig
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  4. #14
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    Default Re: OC'ing my first CPU: i7 2600K

    Thanks to you both.

    I turned off Spread Spectrum and it actually fixed the Blck problem. Back to 100!

    Meanwhile I'm having challenges with using the Vcore offset. The VID was 1.3861, and my stable Vcore fixed was at 1.352, so I set it to an offset of -0.030v (rounded due to options). My idle Vcore was .963 and my VID was .994 at idle. Thats a bit low, so i decided to change the LLC from ultra (level 2) to high (level 3) as it supposedly increases the idle voltage.

    Nothing happened to the VID, and with the LLC lower, didnt even boot into Windows. Recommendations?
    ------------------------------==================[ Current Rig - Still tweaking ]==================---------------------------------
    CPU:
    Intel i7-2600K @ 4.6GHz, 1.36v-load Mobo: ASRock P67 EXTREME4 GEN3 SATA 6Gb/s USB 3.0 ATX RAM: Corsair Vengence 16GB 1600Mhz DDR3
    GPU: Sapphire Radeon HD 7970 3GB SSD: Samsung 830 Series 256GB SATA 6.0Gb/s SSD HDD: Seagate Barracuda 1TB PSU: SeaSonic Platinum-1000 1000W 80 PLUS
    Optical Drive: SONY - Interal DVD 24x - ad-5280S - sata Case: Cooler Master Storm Trooper Cooler: Thermalright SilverArrow CPU Cooler
    Sound: Creative Sound Blaster X-Fi Titanium Fatal1ty PCI-E x1 Monitor: ViewSonic 27" vx2753mh-LED running in 1920x1080p @ 60Hz

  5. #15
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    Default Re: OC'ing my first CPU: i7 2600K

    those idle voltages are fine,mine even drops to 0.828v sometimes,but usually around 0.960v



    if you use less llc then you need to up more offset,so high llc and -0.010v or +0.010v,depends how little it lets you add
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  6. #16
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    Default Re: OC'ing my first CPU: i7 2600K

    Ah, so if I'm around .95v at idle, I still don't need to worry about random BSoDs?

    All to OC forums said stay above the 1.000-1.06 range.
    Also in your sig Wazza, I saw your 23/7 voltage @ 1.17? So figured your idle was well above that?

    So if that's not necessary, all i need to do is run blend for another 20 hrs and close up shop if all goes well?
    ------------------------------==================[ Current Rig - Still tweaking ]==================---------------------------------
    CPU:
    Intel i7-2600K @ 4.6GHz, 1.36v-load Mobo: ASRock P67 EXTREME4 GEN3 SATA 6Gb/s USB 3.0 ATX RAM: Corsair Vengence 16GB 1600Mhz DDR3
    GPU: Sapphire Radeon HD 7970 3GB SSD: Samsung 830 Series 256GB SATA 6.0Gb/s SSD HDD: Seagate Barracuda 1TB PSU: SeaSonic Platinum-1000 1000W 80 PLUS
    Optical Drive: SONY - Interal DVD 24x - ad-5280S - sata Case: Cooler Master Storm Trooper Cooler: Thermalright SilverArrow CPU Cooler
    Sound: Creative Sound Blaster X-Fi Titanium Fatal1ty PCI-E x1 Monitor: ViewSonic 27" vx2753mh-LED running in 1920x1080p @ 60Hz

  7. #17
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    Default Re: OC'ing my first CPU: i7 2600K

    1.17v is what cpu voltage shows in the bios,thats before llc is applied in windows,altogether its around 1.36v under 100% load,it doesnt show the actual voltage inc llc in the bios,thats why its hard to get right

    if it random blue screens you either need touch more offset or a touch more qpi/vtt or vtt if its asrock

    blue screen error codes are 101 not enough cpu voltage or too much or 124 error code is not enough vtt or too much

    it should run perfectly stable below 1v at idle,mine does so yours should,thats what power saving and intel speedstep is for

    EDIT, i do remember the asrock boards having issues when idle with bsod,and adjusting cpu voltage above 1v stopped it,but dont know if it applies to onboard gpu or add in graphic card or both,they should have fixed that though with newer bios's by now?
    Last edited by wazza300; 02-23-2012 at 09:32 PM.
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  8. #18
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    Default Re: OC'ing my first CPU: i7 2600K

    Ok, guess I'll worry about the Vcore idle if I end up having any bsods then.

    So looking at other sites, seems my temps are a bit high for 4.6ghz. 67-70C. I will look at my air flow and may look again at my paste job, but what is your current temp? Any parameters i can look at to cool it down even further?

    Thanks for all your help Wazza.
    ------------------------------==================[ Current Rig - Still tweaking ]==================---------------------------------
    CPU:
    Intel i7-2600K @ 4.6GHz, 1.36v-load Mobo: ASRock P67 EXTREME4 GEN3 SATA 6Gb/s USB 3.0 ATX RAM: Corsair Vengence 16GB 1600Mhz DDR3
    GPU: Sapphire Radeon HD 7970 3GB SSD: Samsung 830 Series 256GB SATA 6.0Gb/s SSD HDD: Seagate Barracuda 1TB PSU: SeaSonic Platinum-1000 1000W 80 PLUS
    Optical Drive: SONY - Interal DVD 24x - ad-5280S - sata Case: Cooler Master Storm Trooper Cooler: Thermalright SilverArrow CPU Cooler
    Sound: Creative Sound Blaster X-Fi Titanium Fatal1ty PCI-E x1 Monitor: ViewSonic 27" vx2753mh-LED running in 1920x1080p @ 60Hz

  9. #19
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    Default Re: OC'ing my first CPU: i7 2600K

    Quote Originally Posted by ped View Post
    Ok, guess I'll worry about the Vcore idle if I end up having any bsods then.

    So looking at other sites, seems my temps are a bit high for 4.6ghz. 67-70C. I will look at my air flow and may look again at my paste job, but what is your current temp? Any parameters i can look at to cool it down even further?

    Thanks for all your help Wazza.
    thos temps are fine,aslong as its below 72c,i hit 75-80c with this cooler but thats on intel burn test stress software,you can try 10runs on high or very high or maximum if your temps allow,if it passes that and stays below 72-75c then its stable,dont do anymore runs than 10,as its very stressfull on the cpu
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  10. #20
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    Default Re: OC'ing my first CPU: i7 2600K

    Drat, Prime95 failed after I went to sleep last night with a bsod 124. I hear that after 12 hours there is an FFT at test #60 - 2688k that can be a SB "killer". So I added a notch on VTT from stock and running it again at custom 10 minute intervals at 90% memory.

    So seems I have to tweak a few other things before I worry about Vcore @ idle.

    Meanwhile saw another thread saying that for lower OCs, like mine, LLC = 75% is really high, and that using a combination of set turbo voltage (vs auto) can help reduce Vdroop. Heard about that before? Never saw anyone so adamant about LLC before, other than being a tool for Vdroop.

    Cheers.
    ------------------------------==================[ Current Rig - Still tweaking ]==================---------------------------------
    CPU:
    Intel i7-2600K @ 4.6GHz, 1.36v-load Mobo: ASRock P67 EXTREME4 GEN3 SATA 6Gb/s USB 3.0 ATX RAM: Corsair Vengence 16GB 1600Mhz DDR3
    GPU: Sapphire Radeon HD 7970 3GB SSD: Samsung 830 Series 256GB SATA 6.0Gb/s SSD HDD: Seagate Barracuda 1TB PSU: SeaSonic Platinum-1000 1000W 80 PLUS
    Optical Drive: SONY - Interal DVD 24x - ad-5280S - sata Case: Cooler Master Storm Trooper Cooler: Thermalright SilverArrow CPU Cooler
    Sound: Creative Sound Blaster X-Fi Titanium Fatal1ty PCI-E x1 Monitor: ViewSonic 27" vx2753mh-LED running in 1920x1080p @ 60Hz

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