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Watercooler VS Fan/Heatsink

I am working on creating my build (to later buy) with an i5-6600k, I am planning on overclocking so I was wondering should I go with a Noctua NH-L9i 33.8 CFM CPU Cooler or a LEPA AquaChanger 240 103.6 CFM Liquid CPU Cooler for it. I know you're typically better of with a watercooler for OCing, but I was wondering if it's that much worth it, or if I were to just go with the fan cooler, would I still be able to max OC, if not then how high?
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More about watercooler fan heatsink
  1. Here's the rest of my build.
    PCPartPicker part list: https://pcpartpicker.com/list/hKCtkT
    Price breakdown by merchant: https://pcpartpicker.com/list/hKCtkT/by_merchant/

    CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor ($229.99 @ SuperBiiz)
    CPU Cooler: Noctua NH-L9i 33.8 CFM CPU Cooler ($37.99 @ Newegg)
    Motherboard: ASRock Z170 Pro4 ATX LGA1151 Motherboard ($99.99 @ SuperBiiz)
    Memory: Avexir Core Series 16GB (2 x 8GB) DDR4-2400 Memory ($69.99 @ Newegg)
    Storage: Samsung 250GB 2.5" Solid State Drive ($79.99 @ SuperBiiz)
    Video Card: Gigabyte GeForce GTX 1060 6GB 6GB WINDFORCE OC 6G Video Card ($249.99 @ Jet)
    Case: Deepcool KENDOMEN Red ATX Mid Tower Case ($47.99 @ Newegg)
    Total: $815.93
    Prices include shipping, taxes, and discounts when available
    Generated by PCPartPicker 2017-01-02 14:28 EST-0500
  2. Best answer
    Your build is very good.
    14nm skylake does not need exceptional cooling.
    I OC my well binned I5-6600K to 4.8 using a noctua NH-U12s which has only a 120mm fan.

    Noctua makes great coolers, but I would not go for a small downdraft cooler like the L9I when better, more conventional coolers are available.
    Your case can handle most any cooler.

    As of 12/04/2016
    What percent can get an overclock at a somewhat sane 1.40v Vcore.

    I5-6600K
    5.2 <1% delidded
    4.9 14%
    4.8 38%
    4.7 67%
    4.6 87%

    My canned rant on liquid cooling:
    ------------------------start of rant-------------------
    You buy a liquid cooler to be able to extract an extra multiplier or two out of your OC.
    How much do you really need?
    I do not much like all in one liquid coolers when a good air cooler like a Noctua or phanteks can do the job just as well.
    A liquid cooler will be expensive, noisy, less reliable, and will not cool any better
    in a well ventilated case.
    Liquid cooling is really air cooling, it just puts the heat exchange in a different place.
    The orientation of the radiator will cause a problem.
    If you orient it to take in cool air from the outside, you will cool the cpu better, but the hot air then circulates inside the case heating up the graphics card and motherboard.
    If you orient it to exhaust(which I think is better) , then your cpu cooling will be less effective because it uses pre heated case air.
    And... I have read too many tales of woe when a liquid cooler leaks.
    google "H100 leak"
    I would support an AIO cooler only in a space restricted case.
    -----------------------end of rant--------------------------

    Your pc will be quieter, more reliable, and will be cooled equally well with a decent air cooler.
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