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81  Economy / Marketplace / Re: MyBitcoin double payment - Please refund it. on: July 12, 2011, 03:36:23 PM
I wouldn't expect any response.

I had a deposit go missing one week ago because their server was down. I sent a clear and polite message with transaction details and a link to block explorer. Since then I've messaged them several times and they still have yet to respond.

As for their ICANN details, the administrative contact lives in NJ and the email is abuse@mybitcoin.com but don't bother emailing them because it will bounce.

I have since removed all of my funds and I have them stored in my own desktop wallet now.
82  Economy / Marketplace / MyBitcoin.com: Login Incorrect! Please try again! on: July 03, 2011, 02:19:08 PM
Is anyone else having difficulties?

I am getting this message with an account I've had for months. I thought maybe it was compromised so I created a new one. I cannot login with this new account either. I went to contact them and their "messaging system" is only available for users who are logged in.

WTF
83  Bitcoin / Bitcoin Discussion / MyBitcoin Down (Maintenance?) on: June 15, 2011, 05:34:25 PM
The site was undergoing server maintenance yesterday, and now the site is completely unreachable. Yet I am still receiving emails from the MyBitcoin Robot when I make deposits. Anyone know what's going on? Should I be concerned?
84  Bitcoin / Mining / Re: Miner's Union? on: June 12, 2011, 07:17:56 PM
I like this idea. As a seller, it's a great reference point. If someone asks why I have priced my BTC at such-and-such a rate I can point them to the "union" website and explain the cost calculation process. Makes perfect sense, IMO.
85  Bitcoin / Pools / Re: [Pool] EcoCoin - Offset your carbon footprint! Profits buy trees and rainforest on: June 12, 2011, 07:09:02 PM
Still waiting to hear what's going on with this pool. Site's still down. Any updates?
86  Bitcoin / Mining / Re: poclbm mining problems with 6950 on: June 11, 2011, 01:56:48 AM
Same problem here - 6950 and 11.5 Catalyst.

I sent a support ticket request to AMD in regards to this, I suggest you all do the same.
87  Bitcoin / Pools / Re: [Pool] EcoCoin - Offset your carbon footprint! Profits buy trees and rainforest on: June 10, 2011, 09:04:57 PM
I <3 this idea.

I'm having difficulties with the account page, however. It seems I am unable to change account settings (such as payout address) despite using the correct PIN. It just takes me back to the account page without any changes made.

EDIT: Looks like this was because I had nothing entered in the Donation % field. However, when I enter "1" there it gives me an Internal Server Error page, but the changes were made.

EDIT EDIT: Looks like the whole server is down now. I'll be checking this out again in the future when the wrinkles have been ironed out.
88  Bitcoin / Mining software (miners) / Re: Phoenix Rising: Front End GUI to Phoenix Miner on: June 07, 2011, 12:33:54 PM
This is great. But without fail it crashes my entire desktop after about 10-15 minutes.

I have a 5830 running 2.4 SDK @ around 85C. I've tried both the phatk and poclbm kernels, and they both crash.

Independently running phoenix with the same args I have no problems, so I'm not sure what the issue is.

I'm running the GUI on 3 machines crossfired and am having no issues. Maybe you can update your flags?

Flags? I'm using the same settings as I was using with phoenix command-line: namely, in Rising I have 5xxx checked (which turns on BFI_INT), AGGRESSION set to 7, and I have VECTORS in the Extras.
89  Bitcoin / Mining software (miners) / Re: Phoenix Rising: Front End GUI to Phoenix Miner on: June 06, 2011, 02:50:25 PM
This is great. But without fail it crashes my entire desktop after about 10-15 minutes.

I have a 5830 running 2.4 SDK @ around 85C. I've tried both the phatk and poclbm kernels, and they both crash.

Independently running phoenix with the same args I have no problems, so I'm not sure what the issue is.
90  Economy / Marketplace / Re: The fastest HD 69xx miner. 250 BTC. on: May 31, 2011, 05:49:16 PM
Congratulations, you just made a nice investment that takes more than 6 years (or 10 years) to make back, if you're going with single 6990 (assuming difficulty stays constant)!
To be able to recuperate the costs under 1 year, you'll need to be running 7x 6990s (or 11, according to another guy's 680 MH/s stock 6990).
That's not counting electricity bills.

Why would difficulty stay constant?  Huh

I don't have the time to crunch the numbers, but you should assume anywhere from a 10% - 50% increase in difficulty which is compounded roughly every 2 weeks. Those kinds of diminishing returns should certainly be factored in. A 6990 may not be worth running in the near-to-distant future due to difficulty increases, thus rendering the miner moot, and perhaps making the investment a net loss.
91  Bitcoin / Bitcoin Discussion / Re: Difficulty increase - 60% on: May 18, 2011, 11:33:57 PM
Where on earth is all this new hardware coming from? Cry

Just imagine your avatar speaking this. It's worth it.
92  Bitcoin / Mining software (miners) / Re: Modified Kernel for Phoenix 1.4 on: May 17, 2011, 12:40:07 PM
Tried it on my 5830 and there was no difference.
93  Bitcoin / Bitcoin Discussion / Re: Personal Mining Log - Lots of Charts! (Updated: May 16) on: May 17, 2011, 01:52:00 AM
It all depends what "client" you're referring to - a pool miner or the vanilla Bitcoin client. When you mine in a pool you don't earn any of the transaction fees because the way they're all setup the owners keep that as part of their compensation. When you run the vanilla client or solo mine, then chances are (if you have port forwarding in place) you're also acting as a node.

I don't have a full grasp of how transaction fees are earned, but this is from the wiki:

Quote
Because nodes have no obligation to include transactions in the blocks they generate, Bitcoin senders may voluntarily pay a transaction fee. Doing so will speed up the transaction and provide incentive for users to run nodes, especially as the difficulty of generating bitcoins increases or the reward per block amount decreases over time. Nodes collect the transaction fees associated with all transactions included in their candidate block.

I've been running a pool miner and a Bitcoin client separately. My Bitcoin client isn't generating any blocks, it's simply acting as a p2p node. Here's a description of how a node plays a role in transactions:

Quote
Transfers are facilitated directly without the use of a financial processor between nodes. This type of transaction weakens consumer protection by making chargebacks impossible. The Bitcoin client broadcasts the transaction to surrounding nodes who propagate the payment across the network. Corrupted or invalid transactions are rejected by honest clients. Transactions are mostly free, however a fee may be paid to other nodes to prioritize transaction processing.

I wasn't sure what to expect doing this, but after about a week I had "Generated" .12 BTC. So I can only surmise that I earned transaction fees that propagated through my node?
94  Bitcoin / Bitcoin Discussion / Re: Personal Mining Log - Lots of Charts! (Updated: May 16) on: May 16, 2011, 05:56:53 PM
Some updates:

I've added in an analysis of energy cost. My energy meter is reporting an average of 225W for my whole rig, and at a cost of $0.075 per kWh that's about $0.40 per day spent on energy.

I've also added a chart to track earnings generated from running a Bitcoin p2p node. My node maintains an average of about 50 connections.

That's all for now!
95  Bitcoin / Bitcoin Discussion / Re: Mining Log - Lots of Charts! on: May 14, 2011, 03:27:43 PM
The BTC-USD values are more or less arbitrary (and also from a single entity - maybe there will be another exchange coming up in a few weeks/months that is far more popular?!)

Well, they're not arbitrary in the sense that if I pulled out I could get that much for them using a given exchange. Also, bitcoin-otc seems to follow mtgox's prices fairly well. These numbers aren't just pulled out of thin air or randomly generated. So they have some meaning and help put things into context.

I think also if a new market comes along and the price is very different, then mtgox's market prices will change in response to that. No market is an island.  Roll Eyes


Edit:
Btw. the only interesting USD value is anyways the one of the current day - as you won't be able to get different exchange rates than the current ones... Wink

The USD value per day is interesting because it shows snapshots in time of the value of my bitcoins, and over time it shows the growth of my mining net worth.

Edit: Okay I added some combined charts, but I also left the individual ones in place. I also added annotations to each to indicate the difficulty change.
96  Bitcoin / Bitcoin Discussion / Personal Mining Log - Lots of Charts! (Updated: May 18) on: May 14, 2011, 01:50:34 PM
Mods: if this is the wrong forum, feel free to move it. It seemed most appropriate to a General Discussion. I see these kinds of "Logs" on other kinds of forums. I figured many of us here are in it for the long haul, and it would be interesting if individuals kept diaries like this to give people on the outside a better idea about the logistics of this enterprise, or those on the inside a point of comparison.

I've decided to dabble in Bitcoin mining as an experiment in the profitability of the enterprise. I am currently pool mining on bitcoinpool.com using a 5830 @ 248 MH/s, and will be upgrading to a Crossfire setup pretty soon. Now, with any experiment there needs to be data and analysis. So I've created time-line graphs beginning when I started mining on May 9th so I can track my progress. This will allow me to gauge in the future when I need to upgrade equipment and when it's no longer profitable. Currently, I am tracking progress in terms of the following:

  • BTC Mined
  • USD Earned from Mining
  • mtgox BTC USD Value
  • USD Earned Adjusted for Energy Cost
  • Bitcoin Difficulty
  • Net Worth in Bitcoins
  • Net Worth in USD
  • BTC Earned As P2P Node

You can view the charts here (hosted @ Google Docs): http://bit.ly/jA3zwY

I will be updating the charts on a daily basis, in the mornings, so please check back in.

If you find this useful at all, please feel free to donate to 12ReVTNmc2duqjMPZFJJBLz6VryWBCHhiP.  Wink

Edit: out of town for a few days, won't be updated during that time.
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