Bitcoin Forum
June 14, 2024, 03:46:33 PM *
News: Voting for pizza day contest
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1]
1  Alternate cryptocurrencies / Mining (Altcoins) / Re: New Dragonmint B52 miner from Halong on: May 09, 2018, 03:26:37 AM
Anyone has the original firmware? I updated it to the latest and my hashrate is down to 3T. I would like to flash it back to the original firmware. Let me know if you have it. Thanks.

I'm having the same issue.  My GUI says 4.25TH but Siamining is telling me 2.9-3.2TH.  Autotuning never stops.  I can't imagine it runs at the correct hashrate if it's always in tuning mode the whole time, maybe I'm wrong.

To clarify, I'm using the S11 from Innosilicon but I'm pretty sure that doesn't mean anything since it uses the Dragonmint firmware.
2  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] - BURSTCOIN mining pool for big miners on: January 26, 2018, 09:35:20 PM

I can't help you with that!
I shouted down this pool long ago
[/quote]

You shut down the pool you meant?  Was it not profitable or you went in a different direction?
3  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] - BURSTCOIN mining pool for big miners on: January 19, 2018, 09:27:24 AM
I started reading up on Burstcoin and I saw this thread.  I see that 87% of the coins have been mined already.  Is it worth it to mine these now?  What's the future economics of mining these other than to acquire some of them before the (speculative) price jump in the future?
4  Alternate cryptocurrencies / Mining (Altcoins) / Re: Calculating air conditioning on GPU mining rigs, help needed. on: January 19, 2018, 08:52:20 AM

Thanks, that's a good start.
5  Alternate cryptocurrencies / Mining (Altcoins) / Re: Calculating air conditioning on GPU mining rigs, help needed. on: January 19, 2018, 08:08:26 AM
Guys, I'm a mid size miner (i Have 250 rigs) I also own a HVAC company.  I have survived 3 years of Texas summers where ambient is 105.  The key and I can not stress this enough is ventilation.  The more the better.  Don't be stupid and add 1 box fan for 10 units on the window.  Buy a 3000 cfm or bigger unit.  Put it this way, I have 30 units in one location that is 130 square feet and air-flowing from attic and pumping out through window at a rate of 9000 cfm.  Its a vortex in there to battle the Texas heat.  Is cooling it better?  Absolutely but the cost incurred is great, plus it takes 50 amps of mining away.

dagarair:  Thanks for the post, good stuff.  I'm curious what your thoughts are on airflow for a home "server room" in the Midwest (Northern Illinois).  Based on my prelim calculations, I probably won't need AC ever (middle of summer is iffy) to cool the room however I'm designing it now and my main concern is a large enough exhaust.  Since I have to open up my exterior wall (twice, for intake/exhaust), I'm trying not to make holes bigger than the width of the studs.  The room will have dimensions of 4' by 13.5' (54 sq ft).  My hot aisle airflow isn't ideal however it's not terrible either.  It will be semi-sealed with only an exhaust fan and (industrial grade?) filters on the intake (don't want critters/dust/etc in my server room).  I also need to manage the sound since I live in a residential area and my neighbor is 15' from the edge of my house...  I'd considered looking into exhaust designs to minimize the sound so all my neighbors don't hear it all day...

Any suggestions on an exhaust fan (CFM rating)?  I'm not asking you to endorse a specific product however I'm not opposed to some suggestions either. 

I almost forgot, my current design for that room will be generating 90k btu/Hr.  I'm working on a secondary room design that'll generate another 120k btu/Hr of heat, same question there and would love a suggestion on exhaust fan capacity.

I realize this is subjective since what one might feel is an adequately cool room will differ but it gives me somewhere to start.
6  Alternate cryptocurrencies / Mining (Altcoins) / Re: Calculating air conditioning on GPU mining rigs, help needed. on: January 13, 2018, 06:43:59 AM
I have run a 400 GPU farm with absolutely no A/C. If you need help, please contact me on skype (Kotarius). I can save you a lot of money.

I'm quite curious how this is done and what climate you're in that no AC is used.  I live in the Midwest, United States and in the summer, the ambient temp will far exceed what you want a room full of computers to be at.

I'm having my HVAC company come over next week to consult on adding a supplemental AC/system to only cool the server room(s).  If I can do this with mostly moving air and a little cooling (in the hot summer days), that'd be ideal.  If I had to choose between shutting down the farm on those hot days and paying for electricity to cool it, that's an easy choice.

The "pressure" aspect is interesting, I'll definitely do some additional reading on that. 

Good stuff guys.
Pages: [1]
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!