This has a 970 chipset instead of the 990FX. Will it be able to handle this much overclocking? I'm gonna get the h100i and add some more powerful fans to my case. My case can supposedly have up to ten fans. I've only found 5 or 6, but there may be a couple i'm missing.
Also, there is a motherboard of nearly the same name called the ASRock 990FX extreme4 motherboard. The difference is that it is newer, while mine is older. I have the 970. not the 990.
I currently own a 970 Extreme4 as well as a 990fx Extreme9.
I was able to get my 965 to 4.2 on 212+ on the Extreme4 board, but have not had any experience overclocking Vishera on that board. On the other hand, I currently have my 6300 clocked to 4.8 on h100i on the Extreme9.
ASRock boards seem to be of high quality (from what I've seen) and I would assume you should be able to get nice overclocks on your 8320 as long as you do it safely. With h100i, it wouldn't be completely out of the question to reach 5ghz.
On an unrelated note, from what I've read the chipsets (970 vs 990fx) are typically concerned with gfx mainly, and so 970 vs 990fx doesn't have any impact on CPU overclocking. The correlation that 990fx boards are "nicer" is due to the boards containing higher end chipsets usually having higher end components since they're targeted at a more expensive price points.
In a nutshell, a 970 board could OC just as well as a 990fx if all other variables remained the same.
fx8320 is way hotter thn fx6300. i own both. at ideal fx8320 hits arnd 38-46. i know thats not usual. i am thinking my mobo is the reason...coz i installed it on a MSI 970a g46. it suxxx... i am jst waiting for the tym wen it turns to ashes!
If you want to split hairs, according to this round-up, the Thermaltake Water 2.0 Extreme cools better, and manages to be quieter as well. Honestly, both are solid cooling solutions. Pick one and be happy.
As for Air cooling, the Noctua NH-D14 and the Phanteks Ph-TC14PE will probably get you just as far.