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  1. #1
    ROG Enthusiast Array CinoMax's Avatar
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    Can't overclock 4770K on my M6Formula

    I'm not sure which one is at fault, the motherboard or the cpu, as I'm new to overclocking.
    So I installed my Swiftech H320 today and temp dropped from 88 degree to 45 degree at 100% loaded stock clock. Like every other sane person would do, I try to overclock my cpu, BUT I couldn't get it over 4.0Ghz. WTH? When I try different 4.2 with different voltage, I still couldn't get my rig to boot up to Windows. It keeps saying WHEA_UNCORRECTABLE_ERROR.

    Anyone know how does this happen?
    CPU: Intel i7 4770K
    GPU: EVGA GTX 780 Superclocked ACX
    RAM: Mushkin Redline Ridgeback 9-9-9-27 1866mhz
    Motherboard: Asus ROG Maximus VI Formula
    Case: NZXT Phantom 820 White
    PSU: Seasonic X series 1250w
    SSD: Crucial M500 460GB
    HDD: 4X 1TB Seagate Constellation RAID10
    Cooling Solution: Swiftech H320 ( to be expanded)

  2. #2
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    At a guess; your CPU probably needs more voltage than you used. You haven't specified the voltages you used to help someone help you - providing the relevant info is pivotal to getting valuable input.

  3. #3
    ROG Enthusiast Array CinoMax's Avatar
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    I tried from 1.180V to 1.255V for 4.2-4.4 Ghz. No luck on any of those. It just wouldn't get past 4.0 barrier.
    CPU: Intel i7 4770K
    GPU: EVGA GTX 780 Superclocked ACX
    RAM: Mushkin Redline Ridgeback 9-9-9-27 1866mhz
    Motherboard: Asus ROG Maximus VI Formula
    Case: NZXT Phantom 820 White
    PSU: Seasonic X series 1250w
    SSD: Crucial M500 460GB
    HDD: 4X 1TB Seagate Constellation RAID10
    Cooling Solution: Swiftech H320 ( to be expanded)

  4. #4
    ROG Enthusiast Array CinoMax's Avatar
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    I ran stress test my rig at stock clock, stock everything using Intel Burn In test. I set the stress level to very high, and one of my core hit 79 degree while other cores were at 76-78 degree. It is normal with all in one? Mine is triple 120mm rad though.
    CPU: Intel i7 4770K
    GPU: EVGA GTX 780 Superclocked ACX
    RAM: Mushkin Redline Ridgeback 9-9-9-27 1866mhz
    Motherboard: Asus ROG Maximus VI Formula
    Case: NZXT Phantom 820 White
    PSU: Seasonic X series 1250w
    SSD: Crucial M500 460GB
    HDD: 4X 1TB Seagate Constellation RAID10
    Cooling Solution: Swiftech H320 ( to be expanded)

  5. #5
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    Okay two things:

    1) Some CPUs need more Vcore than 1.25V for the frequencies you mention. The worst examples I have seen need close to or upwards of 1.35V for 4.3GHz. So it does not suprise me the CPU may not be stable with the voltages you used. IF your sample is like that, there is not much you can do. Looking at the temps you are getting at stock I would hedge bets your cooling is going to run out of overhead if you stress test the CPU at overclocked frequencies with higher voltage levels.

    2) Yes, some disparity between the core temps is "normal".

    -Raja

  6. #6
    ROG Guru: Yellow Belt Array Zeruel's Avatar
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    Ah, the silicon lottery... Best try different volts.
    Cruel Angel
    ------------------------------

    CPU: i7 4770k 4.7Ghz 1.425v
    MB: Maximus VI Formula
    RAM: Corsair Vengeance Pro (2400Mhz OC) 16GB
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    PSU: Corsair AX 1200i
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    Case: Corsair Obsidian 900D
    Mouse: MLG Sensei
    KeyBoard: Corsair K70 RED
    Monitor: BENQ XL2420T

    Custom Water Cooling

  7. #7
    ROG Guru: Yellow Belt Array Kronvict PC Specs
    Kronvict PC Specs
    Laptop (Model)MSI GT72 2QD Dominator
    MotherboardASUS ROG CROSSHAIR VII HERO (WI-FI)
    ProcessorAMD Ryzen 7 2700X
    Memory (part number)16GB G.Skill Ripjaws X DDR4
    Graphics Card #1EVGA GTX 1080 FE
    Sound CardCreative Sound Blaster ZxR
    MonitorASUS ROG Swift PG278Q
    Storage #1Samsung EVO 500GB
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    Kronvict's Avatar
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    I was fortunate to hit the good chip lottery running 4.6ghz at 1.25v stable. Crashed after bout an hour at 1.2v but haven't tried to drop it from 1.25v yet because i think its my sweet spot for now.

  8. #8
    ROG Enthusiast Array CinoMax's Avatar
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    Yeah, I'm convinced it's silicon lottery. Even it stock clock, it suddenly jump to 100 degree and crash when I ran stress test. It is covered under warranty? If not I'm going to sell this one for another 4770K.
    CPU: Intel i7 4770K
    GPU: EVGA GTX 780 Superclocked ACX
    RAM: Mushkin Redline Ridgeback 9-9-9-27 1866mhz
    Motherboard: Asus ROG Maximus VI Formula
    Case: NZXT Phantom 820 White
    PSU: Seasonic X series 1250w
    SSD: Crucial M500 460GB
    HDD: 4X 1TB Seagate Constellation RAID10
    Cooling Solution: Swiftech H320 ( to be expanded)

  9. #9
    iron man Array kkn's Avatar
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    what are the airflow of the fans?
    if your pulling air OUT you will heat up the rad and coolant becouse your pulling hot air from inside the case and out.
    and whats the ambient temp in you room?

  10. #10
    ROG Enthusiast Array CinoMax's Avatar
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    I use Swiftech H320 All in One kit with triple Noctua NF-F12 120mm pull configuration. I have rad on top pulling air out, with a 200mm and other 3x120mm pushing air in. at under 20%, I get 40-ish degrees(~5degree drop). I have installed the block a few times to ensure it seats correctly, and thermal paste I use is just enough to cover the IHS. The problem is at 100% load, it just jumped from 60 degree to 100degree within a minute or less. For the ambient temp, it's around 25-27 degree Celsius.
    Last edited by CinoMax; 09-01-2013 at 08:12 AM.
    CPU: Intel i7 4770K
    GPU: EVGA GTX 780 Superclocked ACX
    RAM: Mushkin Redline Ridgeback 9-9-9-27 1866mhz
    Motherboard: Asus ROG Maximus VI Formula
    Case: NZXT Phantom 820 White
    PSU: Seasonic X series 1250w
    SSD: Crucial M500 460GB
    HDD: 4X 1TB Seagate Constellation RAID10
    Cooling Solution: Swiftech H320 ( to be expanded)

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