Ok sorry to create a new thread but I have 3x S9's on the way and I need help with noise & heat. I will be running EVGA-1600 PSU's (Platinum) on each of 3 circuits.

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CURRENT SETUP: For context, I'm running 4x S7's in a dorm right now under my bed and they're decently quiet (with fans and underclock). However, I heard that the S9's are 5-7db louder (stock configuration). Here's my setup:

2x separate 15A/120V circuits (front/main)
2x 15A/120V on a SINGLE circuit

I've messed with some S7's and have been able to run them continuously underclocked at 550Mhz/475/450/400 respectively yielding 4.7Th/s, 3.3, 3.0, 2.7. I plan on building a duct to expel any hot air out the window as this is overwhelming at the moment. Fans are between 50-65%.

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I didn't consider noise when I got the S9's. So a few issues:

- Heat: shouldn't be an issue after my duct is built; can vent out the window; we have A/C.
- Electricity: should be fine as well; got my PSU questions solved already

- NOISE: What's the best way to deal with this? Insulation? Aftermarket fan mod? Underclock + Fan Underclock? All of them? They would all be going under my bed to help a bit with that.


How loud are the S9's compared to the S7's with insulation/new fans/underclock/etc?

Thanks in advance!!


Edit: I did find a lot of threads on the S5, but not the S9. Someone recommended the Scythe DFS123812-3000 "ULTRA KAZE" (http://www.newegg.com/Product/Product.aspx?Item=N82E16835185054). Would that be good for a push-pull configuration on the S9 as well?

Cost is not a consideration, as S9's cost a lot in the first place. Looking for a straight-up answer for the best aftermarket fans


Edit #2: No aftermarket fans rather; found out it voids the warranty.