Not to knock your post. Having to get a Noctua NF-F12 and everything else you mentioned pinpoints why it is a bad choice for a budget cooler. For the cost of that fan and the Arctic. The Op could buy a much better unit. Such as the Thermalright Macho Direct or Scythe Mugen 5 Rev B. Which come close to riveling big guns such as the Noctua NH-D15.1. Which stock cooler? The older FX came with a poj stock cooler that was extremely loud and yet barely kept the 125w FX in check. The newer released FX comes with a Wraith cooler that's a serious step in the right direction, almost as good as the mediocre hyper212 series.
2. The Arctic Extreme is not a bad cooler, it's equitable to the hyper212, it just has a few flaws. The center mount fan is custom, proprietary, can't be swapped out for a different fan, even though it's 120mm. Because of all the badging, it's also pointless to try and add an external mounted fan. The fan itself is a slow speed fan, 1300rpm, that's not very strong in sp or cfm. So while the Extreme does mediocre ok cooling, the only reason to say it's Extreme is its volume, it's next to silent. If the fan could be upgraded for something stronger, like a Noctua NF-F12, it'd be a great budget cooler, but as it stands, if that fan fails, the whole thing is shot.
There are better choices than a $30 (after rebate) hyper212 evo
CPU Cooler: RAIJINTEK - THEMIS Evo 65.68 CFM Sleeve Bearing CPU Cooler ($39.99 @ Amazon)
CPU Cooler: RAIJINTEK - THEMIS 65.68 CFM Sleeve Bearing CPU Cooler ($33.15 @ SuperBiiz)
CPU Cooler: Deepcool - GAMMAXX 400 74.34 CFM CPU Cooler ($24.79 @ OutletPC)
CPU Cooler: be quiet! - Pure Rock 51.7 CFM Sleeve Bearing CPU Cooler ($35.89 @ OutletPC)
CPU Cooler: Thermaltake - Riing Silent 12 Red 53 CFM CPU Cooler ($36.99 @ Amazon)
CPU Cooler: Deepcool - LUCIFER V2 81.33 CFM CPU Cooler ($34.99 @ Amazon)
CPU Cooler: ARCTIC - Freezer 33 CO CPU Cooler ($38.89 @ OutletPC)
CPU Cooler: Cooler Master - Hyper 212 Black Edition 42 CFM CPU Cooler ($33.99 @ Amazon)
CPU Cooler: Scythe - KOTETSU Mark II TUF 51.17 CFM CPU Cooler ($39.99 @ Amazon)