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Re: [Guide] Dogie's Comprehensive Bitmain Antminer S4 Setup [HD]
by
VirosaGITS
on 18/10/2015, 03:21:56 UTC
Quote from: notlist3d on October 18, 2015, 02:58:02 AM
Quote from: VirosaGITS on October 18, 2015, 02:31:55 AM
Quote from: dogie on October 18, 2015, 02:23:26 AM
Quote from: VirosaGITS on October 18, 2015, 02:11:52 AM
Is there any way to lower the fan speed further than with the smit's slow fan firmware? It won't go under 2520RPM even though its cold and its the only thing making noise in my apartment now.

The S5's are completely silent now.
S4s will do okay with their front fans swapped out but if you're saying temps are really good then you could remove the front fans altogether. I wouldn't recommend unplugging them and leaving them in the case as they're restrictive by design. In terms of noise levels it won't reduce it much but it'll at least save you 30W. Besides that you can't get them slower without firmware as they're modified by PWM signals and not voltage.

I see. Well its already running with only 3 fans, and i'm really interested in getting them to run at 1000 to 2000 RPM. The temps at the moment are at 40c and RPM is 2520. I already have the smit's firmware, does this allow to set a variable somewhere to get it lower than its set minimum?

Any method of making these fans quiet would be nice, short of swapping out the fans, since i would rather not buy more hardware for this S4.

If there is no known way to do this, then thanks anyways for your replies dogie!


Even if you are trying for a more quiet miner.  I would put a replacement fan.  They are designed in a push/pull.    

S4's are not one I would recommend for apartment use if your looking for quiet as a general rule.

Its actually cooler than the S5's for the same noise. But i hit a wall now with the S4 not wanting to go lower.

Quote from: dogie on October 18, 2015, 03:06:31 AM
Quote from: VirosaGITS on October 18, 2015, 02:31:55 AM
Quote from: dogie on October 18, 2015, 02:23:26 AM
Quote from: VirosaGITS on October 18, 2015, 02:11:52 AM
Is there any way to lower the fan speed further than with the smit's slow fan firmware? It won't go under 2520RPM even though its cold and its the only thing making noise in my apartment now.

The S5's are completely silent now.
S4s will do okay with their front fans swapped out but if you're saying temps are really good then you could remove the front fans altogether. I wouldn't recommend unplugging them and leaving them in the case as they're restrictive by design. In terms of noise levels it won't reduce it much but it'll at least save you 30W. Besides that you can't get them slower without firmware as they're modified by PWM signals and not voltage.

I see. Well its already running with only 3 fans, and i'm really interested in getting them to run at 1000 to 2000 RPM. The temps at the moment are at 40c and RPM is 2520. I already have the smit's firmware, does this allow to set a variable somewhere to get it lower than its set minimum?

Any method of making these fans quiet would be nice, short of swapping out the fans, since i would rather not buy more hardware for this S4. If there is no known way to do this, then thanks anyways for your replies dogie!

I am unsure what Smit's firmware does or any additional variables, why don't you flash the slow fan firmware? Have you got any weaker fans you could test with?

That is the slow fan firmware. It just won't go lower than 2520. Much better than the 4k it used to go at, but i still want it to go lower. There is no temp reason to not go lower so its the bottom limit smit set. I'd like to set it lower.

He most likely didn't foresee someone feeding 0-10c air directly into the miner. Any slower at 20-30c ambient would melt the thing so it must of not been necessary to let it go under 2520-3000 which seem to be the slow fan firmware's range.