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1  Alternate cryptocurrencies / Mining (Altcoins) / vega 56 or vega 64 for generic alt coin mining? on: November 14, 2017, 03:49:46 AM
Hello, I'm looking to add a vega to my existing mining pc that currently has a 570 in it.

Looking around I see most people reference the 56 instead of the 64.  That surprises me, as I'd expect the 64 to be the better miner? 

Does anyone know if I can run both a 570 on a vega on the same pc in windows?

Will the nicehash miner properly work with both? Smiley I don't have the time to babysit them and switch pools around and convert coins, so nicehash works real well for me.

Any recommendation on brand?  From prior experience with GPU mining I found XFX cards to be low quality.  In fact I think every one I ever used eventually had problems.  ASUS, MSI, and Sapphire seem to be good brands to me?

Thanks.

M
2  Bitcoin / Mining / luck.. what's wrong with this math? on: November 13, 2017, 06:48:01 PM
I'm overlooking something here, and I'm sure someone can point out to me where my error is.

If a pool finds a block on average every 60 minutes ("100%" luck), then...

1. If that pool finds a block in 1 minute, it's 60x better than expected? 
2. Therefore, at the opposite end of luck, 60x worse than expected is 3600 minutes?
3. However the average of 1 and 3600 isn't 60.

Is #3 the flawed premise, or is something wrong with #1 and #2?  Or all the above? Smiley

Thanks.

M
3  Economy / Computer hardware / [WTS] FutureBit moonlander 2 USB Scrypt miners on: November 12, 2017, 02:39:00 AM
See https://bitcointalk.org/index.php?topic=2125643.msg21230912#msg21230912 for info on pre-order.

I'm selling 10 that I ordered that will be here "soon".

If you're interested, PM me your offers.  I will only ship in the domestic US.

We can use escrow - your expense - if you like.

M

4  Economy / Scam Accusations / phishing attempt from EDOMAJKA11! on: November 08, 2017, 05:49:01 PM
Heads up!

He PMd me with a link that looks like it's for bitcointalk but is really a lookalike site trying to get my credentials.  If he did this to me, he probably did it to others.

See https://bitcointalk.org/index.php?topic=2376286.msg24247003#msg24247003.

M
5  Economy / Scam Accusations / phishing attempt from EDOMAJKA11 on: November 08, 2017, 05:41:10 PM
What happened:
I received a PM from this user indicating he replied to my message.  He included a URL that looked like a Bitcointalk URL, but in reality points to a lookalike site:

http://detallesfalleros.com/index/?u=mdude77&r=789369

Which of course then prompts me for my logon credentials.

Scammers Profile Link:
https://bitcointalk.org/index.php?action=profile;u=224178

Reference Link:
http://detallesfalleros.com/index/?u=mdude77&r=789369

PM/Chat Logs:
hi mdude77

i've replied to you:

hi mdude77

i've replied to you:

https://bitcointalk.org/index.php?topic=2267392.0
 <----DO NOT CLICK ON THIS

Thanks.

Additional Notes:
This user appears to have been around for a while.  That probably means his account has been compromised or sold.

You can see the raw text he sent me by quoting me.  It uses an iurl tag, which I've not seen before.

M
6  Economy / Computer hardware / [WTS] 1 new S9 and L3+ Antminer [SOLD] - arriving EOM November on: November 07, 2017, 04:09:49 AM
S9 is 13.5TH/s unit.

No PSU.

$2500 USD each shipped domestic US priority mail the same day or next day after I receive it, depending on when UPS drops it off.

I will not ship international because of the hassle involved.

Payment in BTC only, using whatever the spot price is of BTC on Coinbase on the day and time we agree of payment.  The payment will have to have at least 3 confirmations before I will consider the payment complete.

Escrow if you wish at your cost with a reputable member such as Phil.  If you choose to use escrow, payment will only be accepted on the day UPS indicates it's arriving.  Otherwise there's too much chance of BTC price volatility hurting me.

I will update this thread, or the buyer, when I receive shipping confirm when Bitmain, as well as when UPS indicates it's actually arriving.

Please PM if you are interested.

M
7  Bitcoin / Mining / what exactly is going to happen with the b2x fork? on: October 31, 2017, 01:41:56 PM
There seems to be surprisingly little info about, so I thought I'd ask some questions:

1 - It looked like the "overall consensus" among miners a few months ago was to support segwit2x.  Future articles I've found indicate that may have changed.  Which is it?

2 - Is the general consensus now that the b2x fork will be the insignificant chain?

3 - I'm guessing the mining hardware doesn't care, as the hardware is fed the work from the pools.  Right?

4 - Do we know which pools intend to support b2x? 

5 - Bitcoin "core" does NOT support segwit2x, right?

6 - Comments like this from Coinbase look a bit disconcerting:

Quote
Following the fork, we will continue referring to the current bitcoin blockchain as Bitcoin with the symbol BTC.  We will refer to the new blockchain resulting from the fork as Bitcoin2x with the symbol B2X.

If the Segwit2x change is accepted by most users, we may choose to rename these blockchains at a later date.

Edit: At the time of the fork, the existing chain will be called Bitcoin and the Segwit2x for will be called Bitcoin2x. Ultimately, we will call the fork with the most accumulated difficulty Bitcoin. We will wait for a period of time after the fork, before finalizing the naming.

I read that as "BTC as you know it be Segwit2x, or it may not be".  If the segwit2x chain becomes the higher difficulty chain, doesn't that mean all the sudden Coinbase (and other exchanges that do this) will call Bitcoin BTC, but core which also calls it BTC won't support it?

Seems like quite a mess is coming if segwit2x becomes the majority chain.

Informative replies are most welcome!! Smiley  Thanks.

M
8  Bitcoin / Mining support / power for avalonminer controller on: October 28, 2017, 04:00:45 PM
I'm quite pleased with how one controller can control up to 20 units.  That's one network connection, instead of 20.

However the "you have to have your own usb-c power source for it" is dorky imho!!

Does someone out there have a power source that can run off of, say, a spare pci-x cable from a psu? Smiley

If not, what would you recommend for a reliable power source?  I have an old charger for an iphone that I'm using for one of my controllers, but I require another one.

Thanks!

M
9  Bitcoin / Hardware / is there a safe way to clean an AvalonMiner 741? on: October 18, 2017, 12:46:30 PM
Without voiding any warranty? Smiley

I have two 741s that the fans run much faster - 20% faster - to keep them as cool as the others, that run 20% slower.  Since they are running in the garage in open air, I'm guessing these two may be a little "clogged".

M
10  Bitcoin / Mining support / AvalonMiner controller using OpenWrt on: September 28, 2017, 05:21:09 PM
Hello, I just got my first AvalonMiner controller off of eBay.  All the instructions I've found on the internet indicate it defaults to 192.168.0.100, and you should see a pretty Avalon Project UI through your browser when connecting to it.

Not so with mine.

Mine was configured with DHCP turned on, so I found it via my router's lease table.

When I connect, I get OpenWrt:

OpenWrt Designated Driver 50019 / LuCI trunk-38010-g851a890647 Release (git-17.114.43691-ffc1d59)

It looks like it has cgminer in it, and is preconfigured to point to kano.is.

Is this a legit firmware, or should I reflash it from canaan's git repository?

Thanks!

M
11  Bitcoin / Hardware / how do you wire a 220v line for multiple miners in the US? on: September 03, 2017, 10:35:51 PM
It seems life can be challenging for the US based miner who wants to use a 220v line for efficiency.

Let's use the Avalon 741 miner for example.  It pulls ~1150 watts.  That's as much as you can do on one 15 or 20 amp 110v circuit in the US.

However, if you have a 30 amp 220v circuit, you theoretically could have up to 4 of them on one circuit.  1150 / 220 = 5.2amps per unit.  80% of 30a is 24a.  5.2 * 20.9a, well within 80% tolerance.

But how do you wire the thing?  Do 30a 220v power strips exist?  Or do you daisy chain normal 20a 220v outlets together?  The power strip idea seems the best, however I don't seem to be able to find any online.

Thanks for the input!

M
12  Economy / Computer hardware / [SOLD] SP30 hosted at Toomim Bros in Washington state, USA on: September 26, 2015, 02:30:37 PM
As the title says, I'm selling my SP30 hosted at Toomim Bros in Washingon state, USA.  It's paid through 10/10 @ 20:51.

It's running underclocked at 2.85TH/s.  According to Toomim support, one Loop (5) is having problems, so it's not fully functional, just mostly functional.

I'd prefer to sell to someone who will continue hosting at the site so we don't have to deal with shipping, however I'm open to shipping as well.

Can do escrow with Toomim if you like.  Feel free to contact support@toom.im to confirm I have it and am selling it.

Make me a realistic offer.

M
13  Economy / Computer hardware / [SOLD] working S4 w/o a PSU on: March 29, 2015, 11:42:22 AM
I have two S4s hosted with Toomim Bros in Washington state US.

One of them (unit #2) recently had the PSU die.  Fortunately it didn't take the S4 with it.  They swapped the PSU from the working S4 (unit #1) to the one with the blown PSU, and the unit (#2) is working fine.

I now have a fully functional S4 (unit #1 - the one that the good PSU came out of) for sale.  I was thinking $200 to $250 USD shipped to the continental US.

M
14  Economy / Computer hardware / [DONE] qty = 1 Antminer S3 on: March 28, 2015, 12:58:03 AM
I no longer have the power, noise, or cooling tolerance to have any miners on site, so they were all sold or moved to a hosting facility.

However, now I'm encountering challenges supporting my M's Miner Monitor app without having any miner units on site.  

With that in mind, I'm looking for one Antminer S3 unit, as cheap as possible, or maybe even donated.  One that has problems, is banged up, or is generally mostly junk is PERFECT as long as it works for at least 10 minutes solid for me to test with.  It will not be resold, or used for mining longer than is necessary to test my app.

Any takers?

Thanks.

M
15  Economy / Computer hardware / [WTS] PCIx riser cables - (6) 1x and (6) 16x on: February 15, 2015, 03:07:28 PM
I'm doing some house cleaning.  I have 12 PCIx riser cables left over from GPU mining.  6 of them are 1x, 6 of them are 16x.

From my experience there isn't any difference between the two.

I'm pretty sure they worked the last time I used them.  It's possible there is one that doesn't work, but I'm pretty sure I threw that one away.

In the interest of shipping I'd prefer sell them all together, or in two lots.

Make me an offer!  BTC only.  Smiley



M

16  Economy / Computer hardware / [WTS] 1200w Thermaltake, 1000w Enermax all gold PSUs on: January 24, 2015, 01:28:41 PM
I have three SP20s to sell.  All are running in my garage, all running around 42C underclocked to ~1.14 TH/s.

The first I bought on December 1st, 2014
The other two I bought on on December 27th, 2014.
All three came directly from Spondoolies.  Will ship with original packaging.

I'm looking for $410 a piece in BTC, shipped to you.  Continental US shipping only, faster than ground shipping, but slower than overnight.  I'd be happy to ship internationally if it wasn't for the hassle involved, so international shipping is out of the question.


I'm on the East coast of the US.

I also have three PSUs I can include:

1 Enermax 1000w gold PSU. This came with an S2 that I no longer have, so I do not have a box or cables outside of the PCIx cables needed to power the S2.  Obviously this PSU is not strong enough to fully power a SP20, but it can run (and is running) a SP20 underclocked.  I'll sell it for $100 in BTC shipped.

1 Thermaltake 1200w gold PSU.  I bought this new from NewEgg on Dec 9, 2013, and I have original packaging and cables.  It has a 7 year warranty.  If you have a problem with it within a year and you didn't break it through abuse, send it back to me, and I'll work with Thermaltake to get it replaced and the replacement back to you.  After the year, it's between you and Thermaltake.  I paid $250 for it, it's going for $225 now.  I'll sell it for $175 in BTC shipped.  Price is not negotiable.  This PSU may be able to run a SP20 at full speed; I never tried it.

1 EVGA Supernova 1300g2 1300w gold PSU.  I just bought this on Dec 29, 2014.  Same deal as the Thermaltake, I have packaging and cables, will take care of any warranty issues for a year, after that it's between you and EVGA.  I paid $160 after rebate.  I'll sell it for $150 in BTC shipped.  Price is not negotiable. This PSU should be able to run a SP20 at full speed; I never tried it.  It can definitely run two SP20s underclocked to 1.15TH/s; I'm doing it now.

If you really want escrow, we can figure something out.  Check my trust ratings and feedback, you'll see I am trustworthy and regularly sell items without escrow.  Feel free to PM any buyer who's left me feedback.

Preference will go to offers for more than one item (I can probably save on shipping), and to those who are fine without escrow.




As always, beware of unsolicited PMs from lookalike scammers that provide a payment address.  I won't give a payment address until the very end of our discussions, so it won't be out of the blue.

M

EDIT: Clarified payment method, packaging, and preferences.
17  Economy / Computer hardware / [SOLD] Antminer C1 - batch 2 - US only on: December 28, 2014, 12:21:30 AM
I'm selling my Antminer C1 - batch 2.  This includes the water cooling equipment that came with it, including the coolant (purple) if you want it.  I bought it from Bitmain directly on 11/24, so it's now a little over a month old.  Like most Bitmain equipment, it runs flawlessly on the pools it likes.  I know it likes Eligius, CKpool, and probably BTC Guild, but I've never mined there with this unit.  I couldn't get it to work to my satisfaction with p2pool, but I am picky about my miners on p2pool.  It works pretty well on Westhash/Nicehash as well.  Right now it's running at a little over 1 TH/s with no errors.

If you need a quiet source of hash and heat, the C1 is for you.  It is extremely quiet and cool.

I'm looking to get the BTC equivalent of $300 USD for it, shipped to you.  I'm on the east coast of the US.  I'll ship expedited in the original packaging, which means slower than overnight, but faster than ground.  It does need a 1,000 watt PSU or greater.  That is not included in the price.  

If you really desperately need a PSU, I have a Thermaltake Toughpower Grand TPG-1200M 1200W  (80 plus gold) that I can include.  It's now a little over a year old, and came with a 7 year warranty.  I'll guarantee it for a year, if you have a problem with it that wasn't from abuse, send it back to me (I'll reimburse you after I conclude it wasn't damaged from abuse)  and I'll work with Thermaltake to get it replaced.  After the year that's between you and Thermaltake.  You'll see on NewEgg they are available new for $175 after rebate.  I'll let it go for $150 in BTC including shipping.  PSU price is not negotiable.  I paid $250 for it when I got it.

Pics coming soon.




M


EDIT: About escrow.  I've never used it, and I've sold many items to many happy buyers.  Check my feedback, and feel free to PM any one of them.  I'm trustworthy, I'm not new, and my account is not sold (and never will be).  However if you want to go there, I hear OgNasty is good.  Keep in mind if I get two offers, and one is with escrow, and one is without, I'll probably be going for the one without.
18  Economy / Computer hardware / [SOLD] 1 Antminer S3+ on: December 20, 2014, 01:50:07 PM
I'm selling my last Antminer S3+.  I bought it from Bitmain on 9/20.  It runs like a champ around 470 GH/s, give or take, at stock speeds.  I have the original packaging.

Looking for BTC equiv of $200 USD shipped to you my choice of expedited shipping.  Continental US only.  I'm on the east coast.  I may consider international shipping if I have to (it's SUCH a hassle), but you pay the extra shipping cost.

I'd prefer avoiding escrow, it's a hassle.  I'm trustworthy.  I've been around a long time, and have sold a lot of hardware here.  

I'm also selling an Antminer S2.  See https://bitcointalk.org/index.php?topic=899836.0.  I don't think I can combine shipments ... don't think there's room in the S2 box for the S3.  But I thought I'd mention it. Smiley






M

19  Economy / Computer hardware / [SOLD] 1 Antminer S2 on: December 19, 2014, 08:17:54 PM
I'm selling my last Antminer S2.  I have the original packing from Bitmain.  It has the original stock 1,000 watt PSU in it.  I've dusted it out, cleaned it up as much as I can.  In the time I've had it, I've replaced the power board and two blades.  It can be temperamental at times, particularly if it's pointed at a pool or coin that does a lot of rapid restarts (like west/nice hash or p2pool).  That inevitably triggers some Xs that decrease the hash rate to as low as 970 GH/s.  A power cycle always fixes the errors for a few days, then they come back again, usually running around 990 or 995 GH/s.  If you point it at a "conventional" pool like Eligius or BTC Guild, it'll happily chug away at 1 TH/s for a few days before an X or two reappear.

I still have the two blades I pulled, Bitmain didn't seem to be interested in getting them back.  They work, they just tend to throw Xs more regularly than the others.  These are included in the package.

I'll ship it for $450 USD equiv to the continental US via non expedited shipping.  We can negotiate on other shipping options if you want it faster.

I'm on the east coast of the US.

I'd prefer not ship internationally, as it's a pain and a hassle, but if you want to pay the extra shipping for it, I can probably work something out.

I'm also willing to just ship the internals to someone who needs them for spare parts.  To clarify, you must buy all the blades and power board at minimum, I'm not going to sell off individual blades, as it's a fully functional miner that I'm using that is still profitable.  If you get the blades and power board, everything else is up for grabs at your preference.  The PSU is the only thing that will cost more on top of it.

Would prefer avoid escrow, as it's a hassle, but can go there if you insist.  Note I've been around a long time and have plenty of good trust feedback.  I've sold quite a bit of equipment here over the years..



M


EDIT: This is from one of the later batches of S2s.  It has the reinforcement bars inside to keep the blades in place during shipping.  Unlike many of the earlier batches, this one arrived to me from Bitmain in one piece.

EDIT #2: Fans are fully functional, nothing is broken.

20  Economy / Computer hardware / [SOLD] 1xS1, 1xS3, 1xS3+ on: November 29, 2014, 10:55:06 AM
I'm looking for a new home for some of my Ants.

The S1 ran great at 200GH/s until it was no longer profitable to do so.  Now it runs great at 180GH/s, whether it's profitable or not is your decision.  After 3-4 days of running it'll throw a bunch of Xs.  That has yet to affect the hashrate, and a soft reboot fixes it until next time.

The S3 is from a later batch, I don't know which.  It runs great around 439GH/s at stock speeds.  I did OC it once for perhaps an hour to see what it would do, then put it back to stock speeds.

The S3+ I bought in mid September.  Like all S3+s, it's a champ, running at 466GH/s at stock speeds.  Like the S3, I OC'd it once to see what it would do, then put it back to stock speeds.

Shipping from the east coast of the US.  I have all the packing material.  Can ship individually or together, but would rather together to save on shipping costs.

S1 price - make an offer.
S3 price - 0.4 BTC
S3+ price - 0.45 BTC

We can negotiate on shipping.  I would rather ship to domestic US only, as international shipping is a PITA.

Would prefer avoiding escrow because it's a hassle, but if wanted, can use OgNasty.  Check my rating, I've been around a long time, and have a good rep.  

M
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