Re: [ANN][POOL] B2x Coin Multipools new pool. 1%FEE
by
Grizy2033
on 14/01/2018, 09:57:52 UTC
my B2X wallet stop syn 6 days ago at 7/01/2018 at 506933 block. Somthing like this happen on 28/12/2017 but i solve it adding server for sync but now they dont sync. You have any server to sync?
Post
Topic
BoardAnnouncements (Altcoins)
Re: [ANN][SegWit2X] Together we will see a business through.
i read about that the noctua NF-F12 are too weak for the S9. I have some on my S5 and the work like a charm! So I try to figure out how I could get this S9 more silent.
I am thinking about taking 2 noctua nf-a14 industrialppc-3000 pwm and a fan adapter that downsizes from 140 to 120mm. The nf-a14 industrialppc-3000 pwm has 269 CFM, so it should blow more air at 3000rpm as the original at 6000rpm with 210cfm.
What are you thinking bout this guys?
mine on!
@voodooman you alredy try it? its working that NF-A14 industrial PPC? i think is 269 m3/h wich is 158 CFM.
i know in this post is talking about custome firmware. But you try to reduce noise and sameone say samething about coordination about fans and sinchronize them i think its a litel bit more hard to achive it. What i want to ask is if sameone try to put 150mm or 200mm fan to reduce the rpm and in consecuent the noise?
Thank you, but I think that we can go with lowest voltage to 500mhz and in that case power consumption is more than 1100w, I tried this 2 weak ago, dont know if something is change in meantime with new fw..
i doont try more than 425Mhz because at 425Mhz the HW rise to much on my D3. Maybe i try another high frecuenci to see if is jusg because my D3 dont like 425Mhz. (Same one say samething bout machine dont like specific frecuency hehehe let give him same trust xD)
Thank You Blissz for your custom firmware. version tested v1.12 from 10 december. I want to mention this custom firmware is good for undervolt option the overclock i dont know i dont try it. i want to mention the efficency are the same as stock firmware or maybe slightr better the Blissz firmware. Because on stock firmware my D3 run at 1050W = 19Ghz with Blissz frimware(lowest voltage option) run with 610-630W = ~15Ghz And i think this is good for hot summer or if noise is a problem. i want to say my power supply is APW5(2600W on 220v) from Bitmain. And i think is a litell bit unestable ... on antpool its like mountain up and down the hashrate(see picture). i let you some picture. https://imgur.com/ZxFg4Cj https://imgur.com/wi4D3So https://imgur.com/CNlssAr https://imgur.com/2kuM1KT https://imgur.com/orbauDU https://imgur.com/o6bEtM1
PD: This are the value of your question micairvas see picture.
Any one know wath is the airflow in m3/h or CFM moved by originals ventilators? because 80dB is really louder. But another ventilator with low r.pm but biger, something like 150mm or 170 to slow down the rpm and dB.
A majority of the noise is a by product of air flowing over the heat sinks creating turbulence. If they need say for example 250cfm flowing through the l3 to keep cool then it doesnt matter if its from a 24" fan or the stock fan. The same amount of air is going to flow through causing the same amount of noise. Now you might reduce it a little bit but not much.
Just my 2cents
I dont think the noise come from the airflow between heatsinks. Because is not whisper sound is like you say turbulance and this are made by the blade of the fan.
Post
Topic
BoardMining (Altcoins)
Re: Antminer L3+ OVERCLOCKED !!! HOT !!! full review with LOTs of pics
by
Grizy2033
on 29/10/2017, 16:42:29 UTC
Any one know wath is the airflow in m3/h or CFM moved by originals ventilators? because 80dB is really louder. But another ventilator with low r.pm but biger, something like 150mm or 170 to slow down the rpm and dB.