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Showing 20 of 55 results by TheRealCashen
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Topic
Board Announcements (Altcoins)
Re: [ANN] ALQO 'A Liquid Object' - Scalable Payment Network (new team, VC-funded)
by
TheRealCashen
on 11/05/2020, 23:32:25 UTC
Im on since the block 400 of the first chain, Amazing Jared ! I was always holding my Alqo.
Bitfineon im sure will become a wonderful european exchange
Really good work, totally respect !


I think I mined that block....
Post
Topic
Board Computer hardware
Re: [WTS] 4 x BCU1525 FPGAs with Memory. In Hand
by
TheRealCashen
on 05/11/2018, 04:27:28 UTC
That auction ended days ago

No, ebay ended it due to me putting in the link of the auction on the page.

Either way, it just ended after I posted again.

So all 4 are sold.
Post
Topic
Board Computer hardware
Re: [WTS] 4 x BCU1525 FPGAs with Memory. In Hand
by
TheRealCashen
on 03/11/2018, 15:25:52 UTC
Added Link


Will provide pictures for interested parties. Shipping US Only. Can pick up in St Louis Area.

I ordered these months ago and I do not have the time or space any more.

http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575378759&campid=5338273189&customid=&icep_item=232991920799&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg&toolid=11111
Post
Topic
Board Computer hardware
Re: [WTS] 4 x BCU1525 FPGAs with Memory. In Hand
by
TheRealCashen
on 25/10/2018, 22:54:57 UTC
Post
Topic
Board Computer hardware
Re: [WTS] 4 x BCU1525 FPGAs with Memory. In Hand
by
TheRealCashen
on 24/10/2018, 13:55:22 UTC
Will you use escrow.

You are new and FPGA gear has had very slow delivery times.

I can do escrow.

Or OgNasty or some other well known escrow person.

Phil, are you interested?
Post
Topic
Board Computer hardware
Re: [WTS] 4 x BCU1525 FPGAs with Memory. In Hand
by
TheRealCashen
on 24/10/2018, 00:00:10 UTC
I'm not anywhere near new.... Someone hacked my cashen account I had to start this one.

email me at coins2point0@gmail.com and we can discuss. I have more than enough people who can speak for me and I know who you are so, i'm sure we can make it happen. If it comes down to it, I will, its just a waste.
Post
Topic
Board Computer hardware
[WTS] 4 x BCU1525 FPGAs with Memory. In Hand
by
TheRealCashen
on 23/10/2018, 23:37:42 UTC
Will provide pictures for interested parties. Shipping US Only. Can pick up in St Louis Area.

I ordered these months ago and I do not have the time or space any more.

http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575378759&campid=5338273189&customid=&icep_item=232991920799&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg&toolid=11111
Post
Topic
Board Mining (Altcoins)
Re: Antminer Z9 mini overclocked
by
TheRealCashen
on 28/08/2018, 22:54:13 UTC
My 2 latest z9s will not do 750. faults
Post
Topic
Board Mining (Altcoins)
Re: sgminer: Baikal Giant X10 / N / B - Open Source - Confirmed OC Giant B!
by
TheRealCashen
on 01/08/2018, 23:42:05 UTC
Followed the directions and i'm getting 0 accepted shares with pascal, but Lbry works just fine.

any ideas?
Post
Topic
Board Mining (Altcoins)
Re: Mining room cooling - How much airflow for 20kW?
by
TheRealCashen
on 28/07/2018, 18:25:35 UTC
My next task to do when it starts to cool off is to have both fans work off the thermostat and have a simple 1 way flap above it so when one is on it will not draw from the other one.

I'll most likely set them at 80F and 100F or something like that.

https://quietcoolsystems.com/ makes an extremely efficient variable fan which would be totally awesome.

https://www.amazon.com/Quietcool-Attic-Gable-Ventilation-Exhaust/dp/B073ZNGR6S
Post
Topic
Board Mining (Altcoins)
Re: Mining room cooling - How much airflow for 20kW?
by
TheRealCashen
on 28/07/2018, 18:22:45 UTC
23 / (1.006 * 1.202 * (10194.064774 / 3600) ) = 6.7 C = 44F
Keep track of your imperial units.
T(°F) = T(°C) × 9/5 + 32

So a delta T of 6.7C is the same as a delta T of 12F, the 32 is just an offset for when the two scales are zero.

Thanks,

It works perfect then!! Exactly what I see. I'm guessing I really dont get all 6000 cfm out of the fans. I but its more like 5000 after advertising and having to pull through the filters.

Thanks again.
Post
Topic
Board Mining (Altcoins)
Re: Mining room cooling - How much airflow for 20kW?
by
TheRealCashen
on 28/07/2018, 18:10:18 UTC
23 / (1.006 * 1.202 * (10194.064774 / 3600) ) = 6.7 C = 44F

Something doesn't seam right. That is about 3 times what I see. Is it because not all the kW is converted to heat?

Those are my calculations and I don't see anywhere near 44F delta.


Example - Heating Air
An air flow of one cfm is heated from 32 to 52oF. Using (1) the sensible heat added to the air can be expressed as:

hs = 1.08 (1 cfm) ((52 oF) - (32 oF))      

    = 21.6 (Btu/hr)

this one works for me.

1.08 *  5000 * (100-94)
Post
Topic
Board Mining (Altcoins)
Re: Mining room cooling - How much airflow for 20kW?
by
TheRealCashen
on 28/07/2018, 13:24:51 UTC
Hi guys,

I have a cold basement room. It has a window, in which a ventilator is installed, that pushes 2000m3 per hour out through a short pipe and gets fresh air through an opening from outside.

The room has 90m3. But I can downsize it to 30m3.

Will 20kW of miners and some ASICs work with that ventilator?
Should I downsize the room to exchange the hotter air faster or leave it big, so it can distribute?

Thank you in advance!

I love this topic.

I use 2 x ~3Kcfm fans for my 23kW cabinet. Works awesome. You do not need cold air. You need a lot of flow and that flow needs to actually transfer the heat and move the heat away from the equipment.

I'll NEVER use anything again besides this cabinet design. Its amazing. No noise, no heat, all contained.

I have a large screened window open in my garage which pulls outside air into my garage, filters it through the box, exhausts the hot air into the attic and then vents back to outside. I have never seen the exhaust over 110 degrees. Which we have had plenty of 100 degree days here in Missouri.

Good luck



https://twitter.com/CryptoLily/status/1011036351268081664

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Post
Topic
Board Altcoin Discussion
Re: Sentinel patch: a solution to the "WATCHDOG_EXPIRED" problem
by
TheRealCashen
on 23/07/2018, 22:20:35 UTC
Is there a windows build available?
Post
Topic
Board Mining (Altcoins)
Re: ALLMINE INC - FPGA Cryptominer
by
TheRealCashen
on 20/07/2018, 15:39:33 UTC
Haven't been around in a couple weeks.

Any update with when we think they will ship?
Post
Topic
Board Mining (Altcoins)
Re: Z9 list of working pools/Fork updates
by
TheRealCashen
on 19/07/2018, 15:54:13 UTC
I clear $30 / day with my z9. That is in BTC
Post
Topic
Board Mining (Altcoins)
Re: [Awesome Miner] - Powerful Windows GUI to manage and monitor up to 10000 miners
by
TheRealCashen
on 18/07/2018, 13:48:10 UTC
@Patrike
Looks like the Antminer E3 is a factor of 1,000 off. I'm showing ~200Gh/s!!! Wish it was true!
Post
Topic
Board Mining (Altcoins)
Re: Bitmain E3 Ethash Miner ASIC (Shipping:16-31 July. $800 USD)
by
TheRealCashen
on 17/07/2018, 23:37:51 UTC
Guys, you have to wait a few minutes for the stats to show pool side... rebooting it will only cause it to be delayed.  That's what happened to me, I waited up to 15 minutes before it showed.  Also, the instructions say... 'Power the control board first, and then the hash board. This is because the fans are driven by the control board...'

29 minutes is ridiculous.
Post
Topic
Board Mining (Altcoins)
Re: Bitmain E3 Ethash Miner ASIC (Shipping:16-31 July. $800 USD)
by
TheRealCashen
on 17/07/2018, 22:40:57 UTC
So it shows hashing now but now it does not show pool side.
Post
Topic
Board Mining (Altcoins)
Re: Bitmain E3 Ethash Miner ASIC (Shipping:16-31 July. $800 USD)
by
TheRealCashen
on 17/07/2018, 21:36:04 UTC
My machine is showing 0. Is this normal? It appears odd to me.


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