Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order

What is the recommended Chip temp for S9?
Im currently running between 85-91C.

under 95 c is okay

over 100 c is not so good.

in-between 95c - 100c is unit to unit.

based on use of 20 units from June 2016 until now.

also room temps can be cold 10c or warm 35c

and inbetween.

Getting a couple S9's online, 14TH batch. Any way to adjust the fan speed and Clock anymore? cold basement and chips are 68-71. I'd like to turn fans down for noise and run chips around 88-92. I remember seeing a URL link to still access the fan and click settings, latest shipped FW does not have those options anymore.

Where did you get these from?

Ordered a couple months ago directly from Bitmain. I was the December batch, just received them yesterday. Tempted to sell some since going for over 5K on Ebay, but who know BTC could be 25k in a couple months

I got mine Friday, hooked it up to make sure it worked and listened to the wife bitch about how loud it is. On E-Bay now... The L3+'s she can deal with, but the S9 is just too loud!!

Yea, its loud. I'm trying to see how I can turn down the fan speed from 4200 to around 3200. My temps are low and miners in basement so its cold down there. Last winter I ran 3 S7's for heat and 3000-3200 RPM was fine and manageable noise.

You can always build a box with intake and exhaust holes and soundproof it.

I've seen that, but I remember someone posted a miner config link that still lets you adjust fan speed and clock settings....I prefer to do that

no go bro can no longer be done.

build a tunnel like I did

https://bitcointalk.org/index.php?topic=2245487.0

Issue solved, my son built me a arduino based modulator/controller that spoofs the fan speed to the miner at 90% and I can enter any fan speed I want. For me 45% is perfect, quiet and temps between 70-75. Actual RPM now is about 3600 and miner thinks its 90%. What a difference in noise. If anyone wants one of these fan speed modulators, please PM me. It spoofs the speed to the miner so it keeps hashing and allows you to enter any percentage you want to run, realtime edits. Watch your temps and keep dialing down the fan speed till you get he sound and temp to where you want them.