What is the biggest cooler <158mm that can be mounted sideways in a AMD board?

FantasticFranco

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Jun 8, 2015
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I have an Asus M5A97 R2.0 AM3+ motherboard. I originally bought a CM Hyper T4 but my case has no top vents so all the hot air circulates around my PC with very little getting exhausted by the rear fan. You can't mount it vertically so I had to get another CPU cooler.

Next, I tried using the CM Hyper 212 EVO and thankfully I was able to position it so it could align with the rear exhaust fan. Unfortunately, the 212 is 158.5 mm and by case only accepts 158mm coolers so now my case panel sticks out about ~1mm.

So now I'm thinking about selling/trading away both coolers and probably thinking about getting a Hyper T3 since you can mount it sideways and is small enough. I wanted to know if anyone has any recommendations that are better than the Hyper T3. I was thinking about the Noctua NH-U12S but I don't know how it mounts on AMD motherboards.
 
Scythe Orochi, probably. it's like a f'n brick. i can get it to fit my Fractal Core 1500 with a bit of space to spare. i think the specs make it 155mm without a fan. no longer made, but maybe you can find one used. mine is on my Kaveri right now (used to be on Llano)

you could look at a Raijintek Aidos, which is based on a 92mm fan. don't have one, but am very likely going to grab one for my i3