Bitcoin Forum
June 23, 2024, 09:58:16 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1]
1  Bitcoin / Mining software (miners) / Re: Braiins OS & Braiins OS+ custom ASIC firmware: optimize performance & efficiency on: June 03, 2022, 02:08:58 PM
You should always use autotuning. The S9s are getting old, i suggest you use a conservative value of 1280 or less.You can also try to match the original factory speed if you want. In any case, the machines probably need maintenance and perhaps repair. Many many many people run them non stop. but at the very least do scheduled cleaning.

Using Braiins OS+ with autotuning enabled does in fact extend the lifetime. If problems develop, the tuner will catch it and readjust as needed, with manual tuning the problem would remain unattended until the chip fails. If you want to focus in longevity, naturally lower values are best.

The best efficiency value was achieved at power limit 900W with target temperature 60° by Bas Laurier (70 J/TH). S9s running like that should essentially last until the parts break from being old which is normal for them anyway.

Okay thanks for your reply.
Right now most of them use the default 1420W as max. I will try and reduce it as you suggested. Cleaning is part of my schedule - the place is quite clean though. Repair is very difficult because I did not find reliable people for that here in Europe.

Do you know anything about the Bonus-Problem?
I usually get about 0,3-0,4 % Bonus instead of 2 %
2  Bitcoin / Mining software (miners) / Re: Braiins OS & Braiins OS+ custom ASIC firmware: optimize performance & efficiency on: May 31, 2022, 10:45:00 PM
I have a problem with my S9 miners on BraiinsOS+.
I had about 100 S9 running about a year ago. about 80 were running on BraiinsOS+ because I like the interface, the options and the knowledgebase.
I use them with Autotune and I had good hashrates with most of them. (branded 13,5TH - most reached 15-15,5)

Now less than half of my S9 are still alive. Most of them lost all their hashboards ("no asics found" etc.).
Maybe I`ve done something wrong? Should I not use the autotune-feature when they are supposed to run longer than a year?
Had the feeling my S9K (no BraiinsOS available) have a much longer lifespan (to be fair - they were brand new while all S9 were used ones).

Another problem I was facing: My Bonus on slushpool was way (!) too little. I guess it has something to do with me splitting the hashrate to separate slushpool-accounts, but the support wasn't able to find the reason. It makes not much of a difference - but it is still little annoying.

Thanks for your ideas.

3  Economy / Computer hardware / Re: Looking for whole Batches of S9 (used) in Europe on: February 11, 2021, 11:54:16 PM


Can you allow DMs from Newbies

Done
4  Economy / Computer hardware / Looking for whole Batches of S9 (used) in Europe on: February 10, 2021, 01:20:28 AM
Hey,

has anyone an idea where to get larger numbers of S9 (all but K) in Europe?
I know many people have them „lying around“ but I don’t want to buy one by one on eBay.

Directly from China I only find alibaba merchants and I heard that many farms are upgrading especially in the Netherlands.

Anyone any connections or sells his spare S9?
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!