I'm open to offers at the moment.  In the UK electric isn't as cheap as many places in the world (probably paying about $0.13 per KW)....

Hi All.

I have been running a UK based GPU mining farm with around 230 Radeon Sapphire RX580s and 35 GTX1080s.  These are split into rigs of 6 GPUs on ASUS & ASROCK motherboards with EVGA Supernova 1200 P2 power supplies.

The lease on the building ends very shortly so looking to sell the hardware to anyone interested.  I can also provide advice/guidance on how to set up again elsewhere..

If you are interested in any of the hardware, I am based in UK - get in touch.

The "UK" is the United Kingdom - which is made up of England, Scotland, Northern Ireland and Wales...

So answering your question, Yes it is the same in Scotland..

The A9 would have cost you about $5000 or more depending on when you bought and paid for it.  This is a lot of money, so knowing what you are getting into before hand is, in my opinion, very important.

There are lots of reasons why you are now getting less, including:

- one of the ASIC boards could have failed - so you could be mining at 2/3rd or 1/3rd of the machine's capacity.
- you are mining a coin which all of a sudden has got a big increase in difficulty
- you are mining in a pool which has had bad luck in finding blocks.
- you are mining a coin that has dropped in price a lot recently.
- you have had connectivity problems to the pool which stops you asking or submitting shares consistently.
- whether you are selling your mined coin immediately for Bitcoin

I would strongly suggest reading these forums about difficulty, hash rates, shares etc - and learn as much as you can so that you can work out the answers why as no-one can give you an exact answer based on your circumstances as only you have access to your miner.

I believe Claymore rewrote his miner in Assembler to get it to be the fastest he could..  I'm an experienced developer and wouldn't underestimate the complexity of writing a miner..

Scotland is part of the United Kingdom/UK.  They don't have any restrictions with this kind of thing and never will.

Other countries though may try and stop importing miners - such as Vietnam's recent announcement: https://blockspoint.com/vietnam-to-stop-importing-mining-equipment

I'm getting around 25% invalid shares - but a steady 38 Kh/s of valid shares.   I have been able to find a firmware update, but all that does is to reduce down the number of invalid shares - which is great, but no increase in actual mining rate.

The 50 Kh/s advertised rate of these devices doesn't look to be achievable currently.

If the invalid shares were actually valid, then it would be getting around 50 kh/s.

On a side note, the graphs on the miner's dashboard are pretty pointless as are showing anything from 15-20 times higher hash rate than the machine is actually doing.

Just received an A9 Innosilicon miner which should do 50 Kh/s according to specs.  Currently have it generating about 26% invalid shares and this seems consistent across various pools including Suprnova (ZEC and ZEN), Flypool, F2Pool and Slushpool.

Anyone else having similar experiences?  I suspect it could be a similar situation to the Z9 from Bitmain that required pools to update their software to handle these new fast beasts..

In my experience, most electric in the whole of UK, regardless of location is 10p per KW or more.  You can get day/night rates of, for example, 13p and 9p - but unless you've got a wind turbine of your own, or huge solar farm then you can't get it much very cheap.

I would love to be proven wrong if anyone has information to the contrary!  Plus I'm talking 100,000+ KW per year, not residential rates.

Currently doing 10.98 Kh/s at around 59C chip temperature...

Can't get Suprnova working myself with ZEC or ZEN...  If people can, how did you do it?  Setting difficulty in password field?

Just had mine delivered.  I cannot get it working with the ZEC pool's for Suprnova or Slushpool.  Error is something related to "extranonce"..

On Antpool, the "dashboard" after 20+ minutes shows nothing - so although am getting some shares accepted, I can't see assurance from Antpool's dashboard that they are being recorded..

The fact that this doesn't work on all pools is a bit disconcerning!

I think you mean £0.13 during the day and £0.09 at night...  The difference is a factor of 100.

I would suggest that you sit down for a day and just read the forum to get answers to your questions as they have been asked numerous times.  You will also learn a lot more as well as information beyond the answers to your questions.

For those who signed up, like me to the 1 year + 1 month (free) contracts for ZCash on Genesis Mining when ZCash launched, how have you found the experience?  The contracts have in the last few days expired/stopped.

I ended up with 27 H/s for $150 and earned about $340 USD over the 13 month period - so it paid for itself.  But spending $150 on a GPU would have returned more!

Wrong thread.  This thread is about ethOS - a linux operating system customised for mining - NOT the altcoin...

The 1.2.6 release of ethOS has new config options for RigPool1, RigPool2, RigPoolPass1 and RigPoolPass2.

There appears to be no documentation as to how this works - anyone using it and can give some examples?

You also need to factor in money for the mining infrastructure - somewhere to put the miners (they will be noisy), something to cool the miners (they will generate a huge amount of heat which cannot be underestimated) and in terms of the electric, you probably need somewhere business/industrial or you could hit a limit as to how much electricity you could get into the building - for example, in UK, a house normally has a maximum of 60Amps to 100amps supply fuse..  A business/industrial setup can have 300+ amps.

Also don't underestimate the amount of time to setup shelving/racks, to setup the miners, to get the software running - and then when the mine is up and running, dealing with rigs that become unresponsive and need rebooting..

This may not be relevant, but the cables between the GQ, G2, P2, T2 power suppliers from EVGA are not always interchangeable - the pin wiring is different on some.

I had similar clicking which was down to mixing up GQ and G2 cables..  Took ages to find!

Take a look at the Linux command called "crontab" which allows you to schedule things at certain times.  You could then schedule a "mine stop" or "mine start" at the times you want.  However, this won't stop using electricity completely.  The cards will remain on, but not processing so will use a fraction of the power.