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1  Alternate cryptocurrencies / Altcoin Discussion / Possible difficulty drops as things heat up this year on: May 25, 2021, 01:41:33 PM
One pattern I have seen every year since S3s were brand new, is that summer usually drops the difficulty as heat limits are reached in certain areas or it is no longer wise for "free heat" during the winter.

The price during this time, will usually go up as well, as some miners in warmer areas are forced to buy or hold or FOMO as they watch the price climb and climb.

This can also cause droughts, especially for hydroelectricity, further making things difficulty to keep going and more FOMO.
What are your thoughts?
2  Alternate cryptocurrencies / Mining (Altcoins) / ARM and SOC CPU Mining ideas? on: April 27, 2021, 03:18:35 AM
With CPU mining being not too terrible, I was interested in building a little under 30 watt system for the lighter CPU algos.
XMRig supports aes on some ARMs already, and I believe there are Android ARM miners as well which is a fun easy idea.

Does anyone have experience with this?
I feel like grabbing a couple used android phones and a large solar power bank for fun.
3  Alternate cryptocurrencies / Mining (Altcoins) / Linux based all in one Operating Systems that are quickly updated on: February 11, 2021, 04:49:05 AM
I've seen quite a few of these, some that have been around close to when I started, some more recent.
I like the idea of having a USB or small SSD to run so I don't have to mess with Windows Mining any more.
What are your positive and negative experiences with this?
Is it a better idea to just grab stock Ubuntu and do it yourself?
I can setup Ubuntu and such quite well, but video drivers and overclocking always seems to be a pain for me.
4  Alternate cryptocurrencies / Mining (Altcoins) / 2021 Storage based coins you can mine? on: January 12, 2021, 05:56:37 AM
Hello! I remember BURST being one of the first coins I think, to offer POW via how much hard drive space you had.
Then Storj and Filecoin and such.
Filecoin seems to be gigantic in trade volume, though mining it literally requires super servers with 128GB of RAM or more, correct?
Unlike BURST and such where you could use a Rasp PI and some old HDDs.

I also learned about IPFS being the hot new thing, which seems to be sort of like a new way of doing things.
However I am not sure what the "true" coin is for it, or if that's like asking about what coin Cryptonight uses(being an algorithm, many coins of course)
Looks like that might be the way things are going?

What are you using your SSD and HDD space for, and with which projects?
What do you predict will be "the winner" to actually compete with dropbox and such.

Thanks!
5  Economy / Securities / Havelock Investments Gone for Good? on: April 07, 2019, 07:29:01 PM
I still have some funds over at havelockinvestments.com
However their support email address returns a generic error, and all withdrawal requests never complete.
I assume this is something I can not do anything about?
6  Bitcoin / Legal / Where to trade Bitcoin to USD bank deposits properly for mining company on: June 15, 2018, 07:02:06 PM
I was curious, if you were to start a mining company just buying a bunch of miners and paying all the expenses of running them as well as maintaining them yourself, how should you go about this?
They are wanting to report it on their taxable income, and claim the miners and electric as expenses.
Everything should be as legit as possible.
My first thought was Coinbase, but it seems there is a lot of debate going on about major exchanges currently.
They also might want to eventually run a website allowing bitcoin payments to a wallet and holding but eventually cashing in as well.
Thanks for all the help!
7  Economy / Service Discussion / Where to trade Bitcoin to USD bank deposits for mining company on: June 15, 2018, 12:45:51 AM
I was curious, if you were to start a mining company just buying a bunch of miners and paying all the expenses of running them as well as maintaining them yourself, how should you go about this?
They are wanting to report it on their taxable income, and claim the miners and electric as expenses.
My first thought was Coinbase, but it seems there is a lot of debate going on about major exchanges currently.
They also might want to eventually run a website allowing bitcoin payments to a wallet and holding but eventually cashing in as well.
Thanks for all the help!
8  Bitcoin / Mining speculation / Overt AsicBoost Released today? on: March 07, 2018, 05:19:02 PM
asicboost.com
I am seeing a few news sites picking this up, but nothing I personally trust.
Anyone have more information on it?

From what I can tell, covert asicboost is now invalid, but overt asicboost works, but only for companies that give away their patents.
Not sure if it's related to the huge price drop, or if that's from the Whales dumping in Japan and at the Auction
9  Economy / Digital goods / [WTB] Pokemon TCG Online Codes, all types. Booster Boxes as well. on: September 04, 2017, 11:59:31 PM
Wanting to buy Pokemon TCG/TCGO electronic Codes, boosters, promos, etc.
Also looking to buy sealed booster boxes from all generations.
I can convert btc to amazon gift cards and buy from there, but seeing if there are better deals or pricing.


10  Economy / Marketplace / Website template or service for newbie merchants adding bitcoin? on: September 04, 2017, 04:34:49 PM
Hello, my friend is wanting to get into selling collectable cards and e-card codes.
I was looking at Magento, WHMCS, Shopify, and others that have bitcoin payment modules.
Ideally, it would have basic stock control, and it would also be nice to have a method of sending out digital codes as PNG files.  The PNG files would be e-card codes.
This way customers can pay and get anything electronic instantly with bitcoin.
Physical orders would be processed manually of course.

Just wondering if there was an ready made solution for this type of setup.  I know my way around CMS and Apache with some confidence, but not much.
This sounded perfect for them back in the day:
https://bitcointalk.org/index.php?topic=161264.0
They will most likely be a small store, so not much volume.
11  Bitcoin / Hardware / Review of Canaan support, warranty, controller, and A741 on: July 01, 2017, 03:25:40 PM
Edit: Sadly with their rise in popularity, smaller clients have been pushed aside.
It has been over 17 days since ordering recently with no response, however larger clients are getting priority on orders.
It has left me quite embarrassed as I got some new buyers to buy up coins for the August 31st batch, all to be left without any response from Canaan so far.
I have covered their loses, but it is still a disappointment.
I also tried ordering from their reseller website, but they declined my order as well and cancelled it.
I would recommend avoiding Canaan if you value time and responsiveness, though I still stand by their hardware.




I first tried out the A721 with their Pi3 controller shortly after they announced it.
They contacted me about payment options, used btc, and had a tracking number the next day, it was already shipped.
I have had 0 issues with this setup.

I then purchased another 2 controllers, one as a backup, another as the main, and very slowly added A741.
There have been 3 MM Firmware upgrades since I got them, never really had any major issues with them, but hash rate does seem to go up pool side with each upgrade so far.
Once summer hit, I learned in my case it was best to set it to -2 or -1 on the voltage offset(easy to set via the controller GUI)
Speaking of which, it's a nice mostly stock cgminer install in the advanced area, I love this and all the advanced options.  The initial GUI front end is very user friendly, but I like the advanced cgminer look.
Poolside rate after rejects is 7.2Ths on the lowest end on the hottest day(as they promised) and 8.4Ths on the high end when it's cool, this is without using +1 voltage (haven't tried it yet).

I had acquired 9 A741 over many months, all within days of payment were shipped very quickly, usually 5 days to my door.
I eventually had one Miner that failed to power on at all very recently.
I tried everything I could think of, but it did seem the Miner was dead.
I reported my findings to their support ticket page.
Showed a few pictures of the Miner, and with no fuss and agreeing it's most likely scrap time, a new miner was sent for free per their warranty.
I've never had that with a Mining company before, or hardly any other company for that matter.

Compared to my various S9 batches, it's obvious the A741 is more durable and more reliable.
All S9 still power on, but currently average 25% dead boards, many during perfect conditions.
Warranty was never valid or within the time frame.

Add on support and warranty, and the A741 is honestly the better ROI.

I am in no way paid, given special treatment or affiliated with Canaan.
12  Bitcoin / Bitcoin Technical Support / Corruption: block checksum mismatch ? Tried numerous fixes on: June 06, 2017, 04:35:27 AM
Edit: Fixed, had to restart OS every 30GB or so for some reason, as the block chain eventually gets hung on updating.  Full fresh blockchain download was forced as well.

I had a BSOD on 13.1, Windows 10 64bit Bitcoin Core, display driver issue, not the first time it has happened.
When I tried to run it again, it syncs almost to about a few hours (back when it started) and then would say this error:
https://github.com/bitcoin/bitcoin/issues/6528
I tried a total reindex, dumped my wallet.dat and tried a fresh 14.1 install, but still getting this error in code.
Very odd.
Plenty of free space, no memory errors, modern updated Windows 10 64bit computer.

Code:
2017-06-06 04:32:08 Pre-allocating up to position 0x400000 in rev00253.dat
2017-06-06 04:32:08 UpdateTip: new best=00000000000000000fa971b5ffb1356cda3df57b58d24e148b309c3dbb42806c height=351176 version=0x00000002 log2_work=82.580196 tx=64812943 date='2015-04-07 22:41:08' progress=0.285647 cache=307.2MiB(152765tx)
2017-06-06 04:32:08 UpdateTip: new best=00000000000000000c802f81019bc47dceabe4cbc44595d23f69be34b14b5062 height=351177 version=0x00000003 log2_work=82.580238 tx=64814506 date='2015-04-07 22:59:48' progress=0.285654 cache=307.8MiB(154140tx)
2017-06-06 04:32:08 UpdateTip: new best=000000000000000008768a17383eb782f3cf20201dabe52632fb4a076fd7f117 height=351178 version=0x00000003 log2_work=82.580281 tx=64815111 date='2015-04-07 23:06:45' progress=0.285656 cache=308.0MiB(154526tx)
2017-06-06 04:32:08 UpdateTip: new best=000000000000000003942b65396a674ad467e9db6abd0c86301c00734f6cad3c height=351179 version=0x00000002 log2_work=82.580323 tx=64815840 date='2015-04-07 23:13:24' progress=0.285659 cache=308.8MiB(155062tx)
2017-06-06 04:32:08 UpdateTip: new best=00000000000000000ed0ac62cb58ba42e4275a158500615acf4bd92c888fc04f height=351180 version=0x00000002 log2_work=82.580365 tx=64817405 date='2015-04-07 23:37:07' progress=0.285666 cache=309.1MiB(156342tx)
2017-06-06 04:32:08 UpdateTip: new best=00000000000000000f9e71e350952890e95c9a3e285d127bc5925c757f077c3f height=351181 version=0x00000003 log2_work=82.580408 tx=64817407 date='2015-04-07 23:37:29' progress=0.285666 cache=309.1MiB(156345tx)
2017-06-06 04:32:08 UpdateTip: new best=0000000000000000004eb2ffd61c79d84837804cb6280e6a165f148019764ef3 height=351182 version=0x00000002 log2_work=82.58045 tx=64818449 date='2015-04-07 23:44:36' progress=0.285671 cache=309.5MiB(157207tx)
2017-06-06 04:32:08 UpdateTip: new best=000000000000000000910d55c5ded478ca02159b14691930243bd832b7740e01 height=351183 version=0x00000002 log2_work=82.580493 tx=64819196 date='2015-04-07 23:54:03' progress=0.285674 cache=310.0MiB(157791tx)
2017-06-06 04:32:08 UpdateTip: new best=00000000000000000843ce944e348501709c593c64be9adc41a869294cc1f8e9 height=351184 version=0x00000002 log2_work=82.580535 tx=64819412 date='2015-04-07 23:55:37' progress=0.285675 cache=310.2MiB(157892tx)
2017-06-06 04:32:08 UpdateTip: new best=00000000000000000a8ee45288116badf993fc2629323508c5de18d7dcb130df height=351185 version=0x00000002 log2_work=82.580577 tx=64820092 date='2015-04-08 00:03:53' progress=0.285678 cache=311.2MiB(159070tx)
2017-06-06 04:32:09 UpdateTip: new best=00000000000000000c39cf845bff6cf3e88d1cdf5a731939a331ec85dd27da50 height=351186 version=0x00000002 log2_work=82.58062 tx=64822107 date='2015-04-08 00:34:43' progress=0.285687 cache=314.8MiB(160562tx)
2017-06-06 04:32:09 UpdateTip: new best=0000000000000000142c1e2b3abce5e92bb5f5ce168d11c48ef429772e736485 height=351187 version=0x00000002 log2_work=82.580662 tx=64824267 date='2015-04-08 01:21:20' progress=0.285697 cache=317.1MiB(162732tx)
2017-06-06 04:32:10 Corruption: block checksum mismatch
2017-06-06 04:32:10 *** System error while flushing: Database corrupted
2017-06-06 04:32:24 ERROR: ProcessNewBlock: ActivateBestChain failed
2017-06-06 04:32:25 tor: Thread interrupt
2017-06-06 04:32:25 torcontrol thread exit
2017-06-06 04:32:25 scheduler thread interrupt
2017-06-06 04:32:25 net thread exit
2017-06-06 04:32:25 opencon thread exit
2017-06-06 04:32:25 addcon thread exit
2017-06-06 04:32:25 Shutdown: In progress...
2017-06-06 04:32:25 msghand thread exit
2017-06-06 04:32:25 Dumped mempool: 0s to copy, 0.010048s to dump
2017-06-06 04:32:25 Corruption: block checksum mismatch
2017-06-06 04:32:25 *** System error while flushing: Database corrupted
2017-06-06 04:32:26 Shutdown: done
13  Bitcoin / Mining support / Saving bandwidth on BTC mining without using a local proxy on: December 14, 2016, 09:08:13 PM
I'm trying to setup a local proxy, but it might be beyond my technical knowledge currently to do 100% correct.
I assume adjusting for a higher difficulty would produce less network traffic to the pool, correct?
Is there such of a thing as too high diff?
For example, they recommended 8000s for an S7, would having 1000000 be too high?
Would it help with my issue any?
I'm using terrible 1mbps if that Wimax
14  Bitcoin / Bitcoin Technical Support / Bitcoin Wallet for Windows that only needs partial blockchain on: December 08, 2016, 07:32:11 PM
I didn't want to move to a site based wallet, but with the blockchain size, is there any limit for me to have a functioning bitcoin wallet, but with a smaller blockchain or partial blockchain?
15  Bitcoin / Bitcoin Technical Support / Sent bitcoins to another wallet install, never completed, 2nd attempt worked on: November 01, 2016, 07:51:15 AM
I sent .6 bitcoins to another wallet, and it never appeared on the second wallet installation (mobile).
I waited a few hours, transaction didn't show up on blockchain, so I sent it again(never being refunded).
This one did show up.
Both times I was synced up on the block chain both sides.
I checked the transaction ID on blockchain.info and noticed the first one ended up later being send to an address I do not believe I own.
The second one properly worked and showed up to the proper wallet.
I tried -zapwallettxes as this normally fixes this issue, but this time it didn't.
So .6 BTC is missing.
I'm using version 0.13 which was the most recent during this time, the 26th of october.
Any ideas on what might be the reason?
16  Alternate cryptocurrencies / Mining (Altcoins) / Windows Steem mining after the most recent hardfork 0.14.2 on: September 22, 2016, 10:57:54 PM
Hello, after the hardfork for version 0.14.2 how do you mine on Windows?
The old miner/wallet no longer work, and I can't find a miner/wallet combo for Windows.
17  Other / Meta / Unable to reset password via email, receive no change password email on: September 11, 2016, 05:02:21 PM
I'm trying to reset my password via email, as my current password doesn't seem to work, but I'm still logged in.
I don't get any password reset emails after completing the forgot password form.
I have *@bitcointalk.org whitelisted
18  Alternate cryptocurrencies / Mining (Altcoins) / Steemd.exe Witness and Miner using 10-20Mbps of bandwidth on: August 24, 2016, 12:44:23 AM
I'm mining Steemd.exe and on my Witness + Miner computer, the bandwidth usage starts out small, but after an hour or two reaches almost 80% of my max speed, 25Mbps
Is this normal?
Is there a way to restrict this?
19  Alternate cryptocurrencies / Mining (Altcoins) / Undervolting R9 cards, which versions work best? on: August 07, 2016, 10:31:39 PM
I ended up buying a mixture of 390 cards a while back, only to realize it seems none of them support undervolting (Tried MSI Afterburner and Trixx)
I have an old R9 290X Reference card back when Litecoin mining was hot on them.  It can undervolt -100 and works amazing, in this heat it's as good as my 390.
What cards do you use that you can undervolt?  Is there a custom bios for the 390s that allow this?  I'm also interested in the 400 series, seems they all can be undervolted?
20  Alternate cryptocurrencies / Mining (Altcoins) / Prebuilt or off the shelf setups for GPU Mining? on: August 05, 2016, 08:20:06 PM
I built a desktop with the ASRock H81 Pro BTC motherboard, grabbed some powered 1x-16x risers, and 3 R9 390 cards.
Things were stable at first, but after moving it around it kills the power on it after an hour or so.  I removed all but one card(plugged into the motherboard, no riser) and the issue still happens.
I have a 1600 watt power supply for it.  Tried 110v and 220v hook ups, updated the BIOS, used restore points, different miners, etc.  I don't see anything overheating. Issue remains after a month.

TL;DR
Is there an off the shelf desktop with 4+ PCI slots for mining with these cards, or a merchant that sells GPU mining rigs ready to go?
I don't mind if it comes with some more cards, planned on expanding any way.
I've built dozens of personal desktops, never had a stability issue until this one.
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