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Showing 20 of 38 results by davedj79
Post
Topic
Board Invites & Accounts
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by
davedj79
on 29/11/2017, 19:55:32 UTC
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Post
Topic
Board Goods
Re: Bitcoin Art
by
davedj79
on 21/02/2016, 22:52:50 UTC
Hi there, I'm glad for the feedback, thank you, and I'm working on ideas as I get them.   Smiley

I've just now negotiated a much cheaper professional print this weekend and also introduced PayPal. 

I had thought about removing the QR code but I've left it on there to subsidise the product (in the hope that if people like it they'll tip me).  The amount I'm ordering at the mo and the quality I get them printed at means margins are very thin indeed.

I will be offering in the future the ability to have no QR code and even your own but it's early days at the mo and I'm trying to get the price as low as I possibly can.  I do this as I truly believe this is a great conversational piece and is a great introducer to Bitcoin and I want to get it out there.

Checkout the larger Flagship piece which is now only £11.99, it's professionally printed and looks awesome in a frame (Ikea do them for less than £10 at this size).

https://t.co/GL44tpJMfg
Post
Topic
Board Goods
Bitcoin Art
by
davedj79
on 18/02/2016, 13:48:42 UTC
Hi, I'm David, I'm a Bitcoin advocate from London and I have created a unique piece of Bitcoin artwork.

So what is it you ask?!  Well it's the entire bitcoin white paper by Satoshi Nakamoto shaped into the bitcoin logo!  Please have a look at my website www.bitbits.biz for more information.

https://pbs.twimg.com/profile_images/693788070781521920/Y4_QToQJ_400x400.jpg
Post
Topic
Board Service Discussion
Re: Spondoolies stopping hosting service.
by
davedj79
on 03/03/2015, 16:02:58 UTC
Thanks Genesis, i look forward to mining with you.  Grin

Not particularly happy miners have only apparently been sent to you today, 17 days after they were turned off and postage to you was paid.  But that's Spondoolies not yourselves.  Hoping we can get this up and running quickly when they arrive.

Thanks for the response.

David
Post
Topic
Board Service Discussion
Spondoolies stopping hosting service.
by
davedj79
on 02/03/2015, 21:27:55 UTC
Hi all,

Has anyone else been affected by Spondoolies recent short notice closure of their hosting service?  Just wondering if you had any experiences?

We had 4 x SP30's with pre paid hosting.  Spondoolies closed their hosting service at very short notice and 'refunded' the payment we'd made as vouchers to spend with them in the future.

I then went for the option of paying $300 per machine out of this to move to Genesis mining and convert to cloud hashing power.  This included signing the machines over to Genesis (so if they close their cloud mining due to costs being above mining - we lose the equipment).  This payment was made 12th February, no communication since then from Spondoolies and Genesis are unaware of my miners arriving and not confirming the deal that Spondoolies arranged?

I'm getting very concerned about Spondoolies and my $25000 worth of miners now...
Post
Topic
Board Computer hardware
Spondoolies SP30 4.5TH/s hosted miner for sale
by
davedj79
on 12/12/2014, 19:10:41 UTC
Hi all,

I have 4 in total, looking to sell 1 of my SP30 miners hosted by Spondoolies Tech in Israel.

The mining is bullet proof at 4.5TH/s and current hosting expires in about a week.  You can either have the miner sent to yourself or keep my spot in their Datacentre at a cost of $500/month or $1200/3 months.  I would recommend you leave it there, I can get the mining address changed with Spondoolies very quickly.

PM or reply with offers.  Cost $7000 originally, they're now selling for $2995 with a slightly increased speed of 4.9TH/s.

BTC / Bank Transfer for payment please.

Cheers
David
Post
Topic
Board Service Discussion
Umisoo hosting of Bitmaintech Antminers
by
davedj79
on 07/10/2014, 12:45:32 UTC
Hi all,

Has anyone else had experience of Umisoo hosting your Antminers?  I see there are posts here for the Hashnet offering but Umisoo can actually host your Antminers and provide you with an interface.

My story so far is that Umisoo have had my new Antminer S4 for a little over a week.  I've finally managed to get it online yesterday, and a miner which should mine at 2TH/s has so far peaked at 200GH/s.

I can get into the interface and update the mining settings, but weather I try ghash or eligius I'm getting the same maximum results.  Whilst I appreciate they are based in China their support has been terrible.  They have restarted the miner, told me to try IP addresses on my miner settings rather than ghash.io or eligius.st.  They've even told me there's a problem with the S4 getting confused as an S2!  Hang on a minute, I should be connecting to a physical, self funded and owned S4!

A very poor show so far.  Wondered if anyone has any experiences with them?  I now find myself with a miner in China, I'm in the UK and powerless to get it working correctly.

Hopefully others are having better experiences otherwise we need to be warning fellow miners to stear well clear!
David
Post
Topic
Board Hardware
Re: Cointerra Hardware Support **Unofficial
by
davedj79
on 14/08/2014, 13:36:46 UTC
Thanks for the extra info, certainly points to the board having an issue.

Due to having other equipment and a lack of space and time, I'm considering selling now.

If anyone is interested in purchasing my Cointerra, hashing on 1 board very happily and I guess potentially fixable, please drop me a PM.  I'm open to offers.  Maybe if you have the same issue you can make 1 good machine and have a lot of spares, or have a much cooler 1/2 power box...
Post
Topic
Board Hardware
Re: Cointerra Hardware Support **Unofficial
by
davedj79
on 10/08/2014, 13:09:53 UTC
Hi all, been spending some time reading through this thread trying to see if anyone has a similar issue, and whilst I think people do, there doesn't seem to be a fix.

It all started with the top PSU showing an orange light on the right and green on the left, unit not mining at all.  When you turned on just the top one the fans weren't starting on the unit. 

The customer service at Cointerra is shocking (and rude), the issue was reported mere days after the 3 month warranty period, I'm in the UK so I'm sure it will cost more than the $350 non refundable fee to get it there (they won't even allow me to ship and return - they make a FORTUNE on their shipping rates I can tell you shipping myself on a corporate UPS account).  The breaking point was even if you do that, a 7 day warranty period on the repair; really?!  So I'm voting with my feet, I won't be buying anything else from them again and being an advisor to many BTC onboarders I'll ensure they don't get anymore new custom, in my mind they're not far off Butterfly labs now.  All that said, decided to self diagnose and try to fix.

The problem...

1) When opened main board had no lights (the night rider orange ones on the board).  Not even at startup and no fans.
2) Switched PSU's and ruled out that problem as the good PSU then became the bad.
3) Checked all connectors
4) Tried removing the black and white cables from the faulty board - nothing.
5) Swapped out the 2 boards checking all connections along the way.  No leaks found, no bad connections.
6) After swapping boards around we've worked out a board is at fault and as it was the primary board there was no mining.  Now the machine is mining on one board so that is an improvement.  Interestingly both PSU's need to be on or the unit won't stay online.  If you don't power up or power down the 2nd it goes offline (can't access over LAN etc)
7) Now the original problem of the orange light on the PSU is on the bottom one.
Cool No lights on the faulty board at all, not even on startup.
9) Looking at the nightrider lights on the working board D42 and D45 don't light in sequence (on startup D42 does but not D45) so I assume this is why it's hashing at around 700. 
10) Only CTA0 displays on the admin screens (before we started I couldn't get to this menu as the faulty board was the main one).  On the front of the machine it blinks on Miner 2 as mining.
11) We've not amended or touched the coolant system yet, there appear to be no leaks.
12) We've tried resetting the boards, we've tried resetting the system etc.  Firmware is 0.7.6, I tried to install 0.6.32 but it loads but doesn't downgrade.

So.. a board seemingly without power, PSU's seemingly fine, cooling seemingly fine, everything follows the board.  Have meticulously checked the board and can't see anything obvious.  Any ideas?

Would really appreciate any advice, thanks all.

David
Post
Topic
Board Pools
Re: Trying to move to eligius with Cointerra
by
davedj79
on 22/05/2014, 16:59:08 UTC
So this is strange, I tried it on another account using my BTC Android address and voila it works perfectly.  So I created a new payment address from my home wallet in Bitcoin-QT on my mac and same problem, dropping hashrates.

Any ideas?
Post
Topic
Board Pools
Trying to move to eligius with Cointerra
by
davedj79
on 22/05/2014, 16:49:47 UTC
Hi there,

Hoping someone can help.  I've been mining happily on ghash.io, I'm trying a move to eligius.st.

I've double checked all settings in the cointerra setup.  After restarting the CT with the new pool details saved, the hashrate starts at 1.6TH/s and very quickly slows to 200ghs and then goes onto stop.

I cannot see an option to change difficulty on eligius, is that because I'm a new user?

The config on the CT I am using is stratum+tcp://stratum.mining.eligius.st:3334 then my BTC address, then 1 for Priority and Qouta.

Any help appreciated.

David
Post
Topic
Board Computer hardware
Re: 3 x Cointerra Terraminer IV for sale in the UK (London)
by
davedj79
on 19/05/2014, 22:22:43 UTC
Why the warning?  Was just adding an updated listing.  Check my ebay feedback if you think I'm not above board...

http://www.ebay.co.uk/usr/david_s_ellis

Please have a think before posting comments like this that could harm a genuine person trying to sell a genuine item...
Post
Topic
Board Computer hardware
Cointerra Terraminer IV x 3 in London need new home.
by
davedj79
on 19/05/2014, 21:02:49 UTC
I have 3 Cointerra Terraminer IV for sale.  They need to go in the next fortnight and can go as quick as you like.  Move forces sale.

Each one right now from Cointerra delivered to the UK including import duty is around £3200 and would take a week to deliver.  These are tested working fine  Available for collection from SW London Twickenham UK.  Can deliver within reasonable distance.  Would prefer cash or BTC on collection.  Can post UPS anywhere for BTC or bank transfer.

Looking for reasonable offers, they come boxed complete.  Look forward to hearing from you.
Post
Topic
Board Computer hardware
Re: 3 x Cointerra Terraminer IV for sale in the UK (London)
by
davedj79
on 18/05/2014, 10:45:17 UTC
PM me details of how you would do Paypal escrow and I'll let you know if it's possible.  If you're collecting it needs to be cash or BTC.
Post
Topic
Board Computer hardware
Re: 3 x Cointerra Terraminer IV for sale in the UK (London)
by
davedj79
on 18/05/2014, 10:21:44 UTC
Hi there, so 35BTC is for 3 x Cointerra total hashing at 4.8TH/s, available immediately from Twickenham, SW London.

I'll PM you my email and phone number, if I can get your email I'll send you the pictures.  I can't see how to attach on here.  Sure no problem to come see them running.

David
Post
Topic
Board Computer hardware
Re: 3 x Cointerra Terraminer IV for sale in the UK (London)
by
davedj79
on 17/05/2014, 09:34:47 UTC
What do you mean by a receipt from local bitcoins sorry?
Post
Topic
Board Computer hardware
Re: 3 x Cointerra Terraminer IV for sale in the UK (London)
by
davedj79
on 17/05/2014, 09:30:29 UTC
I can assure you all it's not a fake, what would you like and I'll take another photo for you. Smiley
Post
Topic
Board Computer hardware
Re: 3 x Cointerra Terraminer IV for sale in the UK (London)
by
davedj79
on 16/05/2014, 14:45:17 UTC
Post
Topic
Board Digital goods
Antminer Discount
by
davedj79
on 16/05/2014, 11:51:32 UTC
Hi all,

I have several vouchers for Antminer S2 $400 each that I won't use all of.  These can be used at www.bitmaintech.com and can be transferred to your account for use.

Make me an offer!  BTC/LTC/Paypal/Bank Transfer accepted.  Would suggest half of the agreed price transferred, then I send the coupon, then you send the balance.  Happy to use an escrow service if you have one to nominate.

David
Post
Topic
Board Computer hardware
3 x Cointerra Terraminer IV for sale in the UK (London)
by
davedj79
on 16/05/2014, 11:47:15 UTC
Hi all,

Due to space restrictions I have for sale 3 virtually new Terraminer IV's from Cointerra.

£3300 (13 BTC) for 1, £6600 (25BTC) for 2, £9300 (35BTC) for all 3, will consider reasonable offers.  These can be collected/delivered immediately from Twickenham SW London UK.  All confirmed working nicely just over 1.6TH/s and more importantly each has had over £500 of import duty paid.

These need to be sold and gone by end of May and can be taken as soon as you like.

Drop me a message or reply in line if you're interested.

Cheers
David