The Corsair is a good power supply, especially when it is on sale  The cube draws 200-280W depending on the clocking. The spec says it has 2 PCI-e connectors, which is what you need. And the 12V rail supplies 40A (480W), which is more than enough. I've been running 24/7 with no problems using an XFX Pro 550W. |
|
|
|
This one is dedicated to the BE Cube: https://bitcointalk.org/index.php?topic=352658That should get you going. The plug with the jumper tells your power supply to turn on - much better than the old paper clip trick. There are a number of power supplies you can use. I'm using the XFX Pro 550W which is more than sufficient for a single cube. I'm using BFGMiner for the stratum proxy because I also have BE USB devices and so already have BFGMiner running. |
|
|
|
|
I have a cube and it currently earns 0.022 BTC per day on BTC Guild. This works out to about $130 per week. So, you could recover the cost in approximately 10 weeks if nothing changed. Unfortunately, the network difficulty goes up every 2 weeks as people buy more high-end equipment. One guy on BTC Guild has a 125 TH/s rig and there are a number of 10-25 TH/s rigs.
That said, I've had fun with the BE Cube (and the BE USB sticks before that). It has been an interesting learning experience but things are just getting too pricey now. Maybe in a year things will cool off.
|
|
|
|
Is downloading a torrent version of the blockchain a safe alternative? What assurances are there that the file you download this way is the real thing?
Downloading from a torrent is the best approach if you are able to do it. You don't need to worry about getting a bogus blockchain because the bitcoin client contains built-in checkpoints. So even if somebody gives you a blockchain which is internally consistent, the client will still reject it because it doesn't match its checkpoint values. I run BitTorrent to seed the blockchain torrent and there is never any drop in the demand. I also run a full bitcoin node and that also runs at capacity feeding blocks to peer nodes. So there must be a lot of people installing Bitcoin-Qt for the first time  |
|
|
|
I feel stupid. Im mining away as we speak. Where should i send the "thank you"?
That's not necessary Just glad you are up and running. The cube is nice but its days are numbered with the big guns coming out early next year which will cause a huge spike in the network difficulty. If we are lucky, the big boys will get tired (or run out of money) and the little guys can take over once more (the network difficulty can go down as well as up) |
|
|
|
- The block reward goes to the miner or pool that solves the block. If two miners solve blocks at the same time, one of them wins and gets te block reward and the other one loses and gets nothings. The winning block is determined by the number of following blocks built upon it.
- The block reward is the same for each block and is currently 25 BTC. The reward is cut in half every 4 years and will eventually go to zero. After that time, the miners will just receive the transaction fees.
- If you work out the mathematical progression with the reward halving every 4 years starting at the original reward of 50 BTC, you get 21 million for the total number of bitcoins.
- It is up to the miner to include transactions in a block (a valid block can have just the coinbase transaction). This is really no different than the transaction fees for credit card purchases. The difference here is the buyer pays the bitcoin fee while the seller pays the credit card fee.
|
|
|
|
|
Are you entering the worker and password twice, once for each pool?
worker-name:password,worker-name:password
The red led flashes as the unit processes getwork requests. If I remember right, it is on solid when you first power on the unit.
Ron
|
|
|
|
The block chain is a transaction ledger of all transactions since the beginning (the genesis block). It is independently verified by each bitcoin node and protected by cryptographic hashes. Miners are responsible for packaging transactions into blocks which are then added to the chain. As a side benefit, the miners get 25 BTC plus the transaction mining fees for each block they find. This means that all transactions are public and can be viewed by anyone (go to blockchain.info to see what can be viewed). For a detailed explanation: http://en.bitcoin.it/wiki/Block_chain |
|
|
|
|
Suppose Person-A sent you 2.0 BTC. You now have a single unspent output for 2.0 BTC. Then you want to send 0.05 BTC to Person-B. The client will use the 2.0 BTC as input to the transaction and set one output to Person-B for 0.05 BTC. That leaves 1.5 BTC that has to be accounted for (inputs are consumed by the transaction). So a second output will be set to a change address in your wallet to return the 1.5 BTC to you. If you included a miner fee of 0.0001 BTC, then the change would be 1.4999 BTC (the difference between inputs and outputs is the miner fee).
Some clients send the change back to the original address while others generate a new address for each change output.
|
|
|
|
|
It depends on your hash rate. Pools such as BTC Guild will adjust your difficulty as needed, so you can just leave it at the default value. If your pool doesn't do this, you could start at the minimum difficulty and then increase it until you are submitting a share once every 2-4 seconds. If your mining hardware has a delay before it is able to start a new work unit, you might want to increase this interval even more so that you reduce the overall time your miner is idle.
|
|
|
|
One suggestion is to delete the blockchain data on your system and then download the blockchain yourself. The best method is through a torrent (if you have the software installed). Otherwise, you can download the 9GB bootstrap.dat file from a web server. In either case, you place the bootstrap.dat file in the bitcoin data directory and start Bitcoin-Qt. It will read bootstrap.dat and create the chainstate and blocks directories. When it is done, it will synchronize with the network to get the latest blocks. This still takes time but it is faster than trying to download the blockchain from peers. Another suggestion is to delete peers.dat in the bitcoin data directory and then restart Bitcoin-Qt to rediscover peers. More information here: https://bitcointalk.org/index.php?topic=145386.0 |
|
|
|
But what happens if the BTC price stays the same ? Because of increasing difficulty you cant profit, right?
Which is one reason not to pre-order hardware that won't be delivered for 6 months. Hopefully we will reach the limit on either hardware improvement or acceptable power consumption. And there is always the long-range question of what will happen when the block payment drops from 25 BTC to 12 BTC. The number of blocks per hour will remain steady but the income will be cut in half. |
|
|
|
Would the ASIC block erupter that runs 10 GHashes/s for 500 pay off when mining for bitcoin? Let's say I don't pay for the electricity bill and it runs 24/7, how long would it be for the erupter to pay for itself?
I have a 5 GH/s miner and I get around 0.0035 BTC per day (BTC Guild). So you would get around 0.0070 BTC per day. At $800 for 1 BTC, it would take around 90 days for you to earn $500. And, as others have noted, the difficulty will increase as better hardware comes online. Just since 11/25, BTC Guild has gone from 1,400 TH/s to over 1,900 TH/s and it is still increasing. |
|
|
|
You can download the initial blockchain before starting bitcoin-qt for the first time. This will be much faster since bitcoin-qt is limited by the upload bandwidth of the peer node it is using to download the blockchain. Once you have downloaded the initial blockchain, start bitcoin-qt and it will synch with the network to get the remaining blocks. The developers are talking about pruning the blockchain but that is still on the to-do list. Check here for further information: http://bitcoin.stackexchange.com/questions/11592/is-there-a-newer-bitcoin-blockchain-download-available |
|
|
|
|
Make sure the time zone and daylight savings time values are set correctly in your computer. These values are used to adjust your local time to UTC.
|
|
|
|
|
No, everybody is working on the next block in the chain. Each block contains the hash of the previous block in the chain, so the miner who completes the hash of the next block wins and this block then becomes the current block. This process then repeats using the hash of the current block as part of the next block in the chain.
If two miners complete a block at the same time, the peer nodes will select the block with the longest block chain. The losing block then becomes an orphan block and is discarded. So, if you eventually solve block 1300 based on block 1299 and the network has already solved block 1304 (based on 1299 -> 1300 -> 1301 -> 1302 ->1303), your block will be discarded and you will not receive anything.
|
|
|
|
|
Did your provide a miner fee for the transaction? A no-fee transaction can take hours or even days to be included in a block while a transaction with a fee of 0.0001 BTC usually gets into the next block.
You can view your transaction on blockchain.info by entering the transaction id. This will display the inputs, outputs and miner fee.
|
|
|
|
|
Check 'About Bitcoin' to get the client version. QT is a cross-platform GUI development tool which is used by Bitcoin-Qt to provide the user interface.
|
|
|
|
|
This message indicates a new network block has been detected and the current work is stale. Is that the only message you are seeing? You should be seeing accepted/rejected messages as your miner submits work to the pool.
For example (BFGMiner)
[2013-12-06 16:44:23] Accepted 0f473147 BES 4 Diff 16/4
[2013-12-06 16:44:25] Accepted 005df064 BES 8 Diff 697/4
[2013-12-06 16:44:30] Accepted 1221b480 BES 0 Diff 14/4
[2013-12-06 16:44:31] Accepted 37b3bf55 BES13 Diff 4/4
[2013-12-06 16:44:34] Accepted 357404a6 BES 6 Diff 4/4
[2013-12-06 16:44:39] Accepted 0c1a4dc8 BES14 Diff 21/4
[2013-12-06 16:44:45] Accepted 1e1f9d97 BES 9 Diff 8/4
[2013-12-06 16:44:50] Accepted 3808432b BES11 Diff 4/4
|
|
|
|
|
Show Posts
