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1  Economy / Services / [SUSPENDED] - Selling 1Ghash mining contract - $167/month on: July 03, 2011, 03:59:06 AM
I'm suspending this offer for the time being but don't want to delete yet because I may reopen it.  I'll bump the thread if it is reopened

I'm selling a mining contract for a one year period.  It will be to rent one gigahash/sec and receive zero variance payments at every difficulty change.  The buyer has to pay for the full year in advance, but they will receive rates that are vastly better than any other option on the market today.  The price will be $2,000 - which works out to an average of $167 a month.  This should be less than half of the price offered by anyone else.  Of course the commitment on those deals is not as long, but this is my tradeoff required to offer you such a price.

The payments will be made every time the difficulty changes, and you will be paid the exact zero-variance amount that 1ghash should have earned over that time period.  For example, the current difficulty is 1,379,223 and 1ghash is expected to earn .7293 BTC per day.  If it takes 12.5 days exactly to go through 2016 blocks (the amount required for a difficulty change) then you will receive a payment of 9.116 BTC (12.5 x .7293) on the day the difficulty changed.  It may sound a little complicated, but the end result is perfect zero variance payments without needing to make 365 individual transactions if I paid daily or needing to calculate pro-rata amounts for days that the difficulty changed.

I believe I can accept paypal as a payment for this transaction at an additional 5% fee (so $2,100 total).  I'll want to clear this with paypal first, but my plan is to sell you a flash drive with your first payment stored in a wallet.dat.  You will need to be verified with a confirmed address and I will mail you the flash drive with signature confirmation required.  To prevent chargebacks, the transaction will not mention bitcoins at all, but will appear as if you are just buying the flash drive.  I will also accept payment by any method where no charge back is possible, such as Mt. Gox or bitcoins.

To show you that I am legitimate, here is a screen shot showing that I am a top-rated ebay powerseller with nearly 10,000 feedback and sales of over $25,000 a month.  I have blocked out my name for the time being because I don't want it public for just anyone, but I will of course disclose it to buyers and verify my identity by contacting you through ebay.

Please contact me or post with any questions.

2  Economy / Goods / [sold] Selling fully configured 1120 Mhash rig - $800 on: June 26, 2011, 03:49:30 AM
I'm looking to slowly wind down my mining operation as I am moving in a month and don't want to bring it all with me.  Here are the stats and approximate retail prices:

MB MSI 890FXA-GD70 AM3 R               $185
CPU AMD|SEM 140 2.7G AM3 RT       $38
4x VGA SAPPHIRE|100297L HD5830 RT    $440
PSU CORSAIR|CMPSU-850HX 850W RT    $165
MEM 2G|GSKILL F3-10666CL9S-2GBNS    $20
SSD 16G|KST SS100S2/16G RT       $55

The parts for this rig retail at $900, and as we all know you cannot get Radeon 5830s at retail anymore, so you would probably have to pay closer to $600 just for those, putting the cost over $1000.

This has ubuntu 11.04 preinstalled on the 16gb SSD, with SSH enabled for remote access, and a script to launch the miners automatically upon power up.  All you need to do is plug it in and modify the script to point at your pool.

It has worked perfectly for the past few weeks with no downtime except from when I was moving parts from one location to another.  The radeon 5830s put out a constant 280 mhash each, so a total of 1120 for the rig.  I did flash the BIOS on the cards to run at 925mhz clock and 300mhz memory, so that likely voided the warranty - be aware of that when purchasing.



My price is $800 plus the actual cost of shipping.  There is no case for this rig, and you would probably have trouble finding one that could fit 8 expansions slots comfortably without overheating.  I have run it open air, and it works fine.

This will ship from Maine in the US.  If you're interested let me know your zip code and I can come up with a quote for shipping.  It will weigh around 20 pounds and probably cost around $30 to the East coast and $50 to the west coast for priority mail shipping.  I'll accept paypal for a 2.5% fee, bitcoins, Mt. Gox, or any other popular payment method you know of.  Let me know if you have any questions.




3  Economy / Goods / [SOLD] Selling fully configured 560 Mhash rig - $380 on: June 25, 2011, 08:12:15 PM
This item has been sold.  I have another rig still available though: http://forum.bitcoin.org/index.php?topic=22647.0


I'm looking to slowly wind down my mining operation as I am moving in a month and don't want to bring it all with me.  I'll start by selling one rig.  Here are the stats and approximate retail prices:

APEVIA JAVA ATX-JV650W 650W - $55
ASRock M3A770DE AM3 AMD 770 ATX AMD Motherboard - $60
G.SKILL NS 2GB 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model - $20
AMD Sempron 140 Sargas 2.7GHz Socket AM3 45W Single-Core Processor - $38
2x Sapphire Radeon 5830s - $220 new if you can find them, more like $300 now
4gb flash drive for OS - $8

If you add up all the parts it would cost you around $480 to get a computer like this online, then you would need to spend hours configuring it.  This has ubuntu 11.04 preinstalled on a flash drive, with SSH enabled for remote access, and a script to launch the miners automatically upon power up.  All you need to do is plug it in and modify the script to point at your pool.

It has worked perfectly for the past few weeks with no downtime except from when I was moving parts from one location to another.  The radeon 5830s put out a constant 280 mhash each, so a total of 560 for the rig.  I did flash the BIOS on the cards to run at 925mhz clock and 300mhz memory, so that likely voided the warranty - be aware of that when purchasing.

My price is $380+ shipping if you want everything but the case.  The computer is currently open air, but if you want me to ship it in a case with a test bench add $40 (this will also increase the shipping cost).  I have the original boxes for everything except the cases (I really don't want to mail those, but I will if you pay for them).  I think they work better open air anyway.

This will ship from Maine in the US.  If you're interested let me know your zip code and I can come up with a quote for shipping.  I'll accept paypal for a 2.5% fee, bitcoins, Mt. Gox, or any other popular payment method you know of.  Let me know if you have any questions.

4  Economy / Services / Selling mining contracts from $0.24/mhash per month on: June 24, 2011, 04:57:47 PM
I have 14 units of mining capacity currently available for leasing.  Each unit is 250 mhash/sec and is zero variance.  The lease rate depends on the terms, with more favorable rates for longer term leases.  With leases there you receive zero variance payments daily.  A one month lease is $120, two months is $220, three is $300, and additional months are $60/month all paid in advance.  That's as low as $0.24 per mhash per month.  Months are always considered 31 day periods.  Compare that with the prevailing rates.  If you rented 1 ghash from me for 4 months it would cost you a total of $1440 ($360 x 4), while others would charge 1760GBP, which is more than double.

Payments will be based on the rate determined here http://www.btcserv.net/bitcoin-calculator/, which at the current difficulty level is 0.18232btc/day per unit leased.  As a bonus to my first customers and because I have a bunch of bitcoins sitting doing nothing, I'll give you at least one week of earnings in advance upon receiving payment.  So instead of receiving payments of .18232 BTC a day, I'll send you 1.27624 btc the first day (or more, haven't decided yet) and count that against your future earnings.  In the end you'll get the same amount of coins as if you were paid daily, but this way you'll get them quicker and I won't have to make as many small payments.

I also have an option where you can own the mining equipment and I will operate it for you for a small fee. The cost to own the rig would be $220 per 250mhash unit, and it would represent a rig with Radeon 5830s, 1 GB ram, a flash drive, and a sempron 140.  You own the equipment and at any time can shut it down and ask me to mail you the hardware (you pay shipping costs) or sell it for you and give you the proceeds.  The computers are online now, and you get daily dividends.  I operate them for you for $1.50/day in upkeep until it becomes unprofitable or you want to stop.  If something breaks while you are paying upkeep I replace it for you at my expense.  If there is downtime I cover it for you.  You can buy individual units (250 mhashes), so you can own just one unit for $220, but in order to redeem for a full rig you would need at least two shares and to pay for shipping from the east coast of the USA.  

I would prefer payment via some method with no chargebacks, so I will gladly accept bitcoin or Mt. Gox transfers when they reopen.  If you have any questions please post or PM.  

This isn't super relevant to the mining operation, but if you are worried about security, I also have an ebay business with nearly 10,000 feedback and monthly sales of around $30,000.  You will have all my details to see that I am legit.

5  Bitcoin / Bitcoin Discussion / This is what happens when someone dumps a lot of BTC quickly on: June 10, 2011, 07:45:53 PM
The volume is huge over the past 15 minutes. It's at 15k and rising, which is 1/5th of the total for the day.  Someone is unloading a ton of BTC really quickly.
6  Economy / Service Discussion / Coins sent to MtGox > 12 hrs ago, no confirms on bitexplorer + computer is dead on: June 09, 2011, 05:32:24 PM
I was having some issues with my windows computer which had a couple of bitcoins on it.  I sent them in to Mt. Gox last night, and it looks like it went through because it was deducted from my account.  I then tried to start fixing the computer, but things are worse than ever right now and I can't boot into anything.  Nothing has shown up in my Mt. Gox account yet and the transfer didn't register on bitexplorer so I'm worried it never went through, and worse yet 24 hours will pass soon so the address they went to might be no good.

I think maybe because I restarted soon after sending it never entered the block (but I'm not positive on how this works).  I saved my wallet.dat folder, installed bitcoin on another computer and put it in there.  It doesn't show any balance or any transactions so I'm not sure if it's even recognizing it.

So I guess I have three questions: 

How do I restore a wallet on a new computer?  I just put it in the bitcoin directory, not sure if that is correct or not.

When I do restore it, will it keep my transaction history and hopefully confirm my transaction which hasn't gone through yet?

Finally, what happens to coins sent to a Mt. Gox address after 24 hours assuming I don't get things figured out before then?
7  Bitcoin / Mining / Rackmount cases that can fit 4x GPU? on: June 08, 2011, 07:22:05 PM
Anyone know of some good rackmount cases that can comfortably fit 4 5830s or equivalent cards?  Preferable without modding, but if it's the difference between a $70 case and a quick mod vs. a $400 case I'll do the mod.

I've got such a mess worth of parts and I should really streamline everything and get a proper rack.
8  Bitcoin / Mining / Keeping cards from bumping into each other with no case? on: June 08, 2011, 01:21:37 PM
I'm just wondering what other people have done to keep cards safely separated when you need to cram them side by side on a motherboard and have no case to screw the cards into?  I had a machine go down last night when one of the cards moved a little and the fan slammed into another.  I don't think there was any damage that can't be fixed, but I obviously want to prevent this from happening again.  For now I stuck some pieces of a cardboard box between each card, but I was wondering if anyone had a more elegant solution?
9  Other / Obsolete (selling) / Selling Radeon 5870 for BTC - free 2 day shipping on: June 03, 2011, 10:09:53 PM
Newegg has some

HIS H587F2G6DG Radeon HD 5870 2GB 256-bit GDDR5 PCI Express 2.1 x16 CrossFireX Support Eyefinity 6 Edition Video Card

in stock for $280.  I'll buy it for you with two day shipping in exchange for bitcoins, at whatever the market rate is.  As I type this it's $13, so that would be 22 BTC.  Get it now before your BTC drop and before Newegg sells out again!
10  Other / Obsolete (selling) / Selling Amazon prime orders for bitcoins on: June 03, 2011, 04:01:05 PM
I'll buy anything that can be shipped with Amazon prime (free two day shipping to continental US) and have it sent to you in exchange for an equivalent amount of bitcoins.  Any interest please let me know.
11  Economy / Goods / Selling or leasing mining equipment - $0.88/mhash - online now on: June 02, 2011, 12:30:54 AM
This price has been slightly increased, now $220 per unit because six units have already been sold.

I am selling existing mining rigs, $220 per 250mhash/sec.  They are online now, and you get daily dividends.  I operate them for you for $1.50/day in upkeep until it becomes unprofitable or you want to stop.  Then I either send you the computer or sell it for you and give you the money. If something breaks while you pay upkeep I replace it for you at my expense.  If there is downtime I cover it for you.  You can buy individual units, so you can own just one unit for $220, but in order to redeem for a full rig you would need at least two shares and to pay for shipping from the east coast of the USA.  

I will also be willing to lease the equipment to you if you do not want to be bothered with owning it at the end.  The lease rate depends on the terms, with more favorable rates for longer term leases.  With leases there is no upkeep cost and you receive no variance payments daily.  A one month lease is $120, two months is $220, three is $300, and additional months are $60/month all paid in advance.  That's as low as $0.24 per mhash per month.  Compare that with the prevailing rates.  If you rented 1 ghash from me for 4 months it would cost you a total of $1440 ($360 x 4), while others would charge 1760GBP, which is more than double.

In either case the payments are all zero variance, so downtime is never an issue.  Payments will be based on the rate determined here http://www.alloscomp.com/bitcoin/calculator.php, which at the current difficulty level is .182btc/day per unit purchased or leased.  If you own and I operate, the upkeep costs are taken out of the daily payments at exchange rate at the time of the transfer.

I would prefer payment via some method with no chargebacks, so I will gladly accept bitcoin or Mt. Gox transfers when they reopen.  If you have any questions please post or PM.  

This isn't super relevant to the mining operation, but if you are worried about security, I also have an ebay business with nearly 10,000 feedback and monthly sales of around $30,000.  You will have all my details to see that I am legit.



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