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1  Economy / Computer hardware / [WTS] 5 Mining Rigs @ 4x 6870 cards @ 1.2GHs on: April 19, 2012, 04:16:51 AM
I have 5 rigs total for sale.

Specs for each:
MSI 890FXA-GD70 Motherboard
Athlon II X2 245 or AMD Sempron 140
2GB GSkill DDR3
850 Watt Corsair TX850 V2
4x 6870 (2 plugged direct into MB and 2 using PCI-E x16 extenders - for better airflow)

They aren't in cases, I have them sitting on a 2 shelf wire rack (maybe 2ft x 4ft) so there are 4 rigs on the shelf with fans pushing and pulling from both sides. The are all superstable.

They are all running win7 with GUIMiner 2012.02.19 and LogMeIn (haven't needed to see them in quite some time - I sporadically check on them with logmein).

Rig 1: 1.197GHs - 1,371,626 shares since GUIMiner Update
Rig 2: This doubles as my gaming machine and not for sale
Rig 3: 1.214GHs - 575,707 shares since last reboot
Rig 4: 1.196GHs - 1,369,556 shares since GUIMiner Update
Rig 5: 1.242GHs - 1,424,775 shares since GUIMiner Update (This rig has 3x 6870 and 1x 5850 - 6870s are running 299.4 Mhash and the 5850 is running at 344.4 Mhash)
Rig 6: 1.203Hs - 1,378,239 shares since GUIMiner Update

1,4,5,6 have been running non stop for much longer than the shares above. Their stats reset when I updated GUIMiner on 2/20. Rig 3 was rebooted about 3 weeks ago when I had to move some wires.  They are all very stable. Only reason I would part with them is for the rightrice and to get the wife off my ass about the heat and fan noise.

I am located in Ohio (to figure shipping cost). I have all original boxes, manuals, cd's, everything. Let me know if you (or anyone else) is interested. I am willing to take all offers into consideration.
2  Economy / Trading Discussion / MTGOX took $1000USD out of my account, said 'accidently sent a withdrawal 2x' on: March 28, 2012, 12:47:17 AM
I got this from MtGox Support on March 19th:
Quote
Adam, Mar 19 15:12 (JST):
It appears that we have sent you a double withdrawal of USD $1,000.00 on [removed].

Please kindly send this amount back to your Mt.Gox account so that your balance on the Mt.Gox account can be adjusted accordingly. The end of March is the end of the financial year here in Japan and therefore, we need to get our balances correct for auditing. Thank you once again and our apologies for the urgency.

Thanks,

MtGox.com Team

The removed is a hex string xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx - what does this refer to? can I use this to track what they are talking about??

My MtGox account has $-9xx.00 now after their bullshit (I had like $25 in the account before).

After providing them multiple screenshots of my Dwolla Account showing that all of the deposits matched and there were no duplicates, it has been more than a week and still nothing. I got a response today saying they are still "finding out a couple information on our end."

I have a couple hundred BTC in the account, and tried to transfer them out so they couldn't sell them to zero out the balance, but BTC withdrawals are blocked when an account has a negative balance. So they are holding my couple hundred BTC hostage until they correct this.

They try this on anyone else? What should I do? Can Dwolla help with this?
3  Bitcoin / Bitcoin Discussion / MTGOX PROBLEM - Sold BTC was never credited USD - Check YOUR History on: August 29, 2011, 07:47:11 PM
I posted this in the Economy Forum and it got very few views.  Thought this may be a larger audience for my problem. I mainly just want to see if any other Gox Traders got hit like I did.

This happened when MTGox was being DDOS'd the other day. I have emailed them and they have said they are looking into it, but still no USD.

I sold BTC in 4 different transactions. On the BTC History, it shows 4 transactions going out. But on the USD History, it only shows 3 transactions being credited.

In the BTC history:


In the USD history:


As you can see, I was credited USD for the transactions ending in 332, 479 & 182, but not for the one ending in 747.

I WOULD CHECK TO MAKE SURE THAT ANY TRADES IN YOUR ACCOUNT WERE CREDITED PROPERLY AROUND Thu 25 Aug 2011 12:14:41 AM EDT. I HAVE A FEELING THAT IF THIS HAPPENED TO ME, IT HAPPENED TO A LOT OF OTHER PEOPLE

This happened 4.5 days ago and I notified Gox of the problem within an hour. Something like this should have been taken care of ASAP, yet Gox is taking their fucking time with mine (and likely your) money.
4  Economy / Trading Discussion / MTGOX PROBLEM - Sold BTC was never credited USD - Check YOUR History on: August 27, 2011, 06:26:09 PM
This happened when MTGox was being DDOS'd the other day. I have emailed them and they have said they are looking into it, but still no USD.

I sold BTC in 4 different transactions. On the BTC History, it shows 4 transactions going out. But on the USD History, it only shows 3 transactions being credited.

In the BTC history:


In the USD history:


As you can see, I was credited USD for the transactions ending in 332, 479 & 182, but not for the one ending in 747.

I WOULD CHECK TO MAKE SURE THAT ANY TRADES IN YOUR ACCOUNT WERE CREDITED PROPERLY AROUND Thu 25 Aug 2011 12:14:41 AM EDT. I HAVE A FEELING THAT IF THIS HAPPENED TO ME, IT HAPPENED TO A LOT OF OTHER PEOPLE

They also still need to credit me for my free yubikey, because the coupon code for it to be free didn't work. Still waiting on that from 3 days ago....  Both of these issues seem like issues that should be taken care of ASAP, yet Gox is taking their fucking time with mine (and likely your) money.
5  Economy / Goods / Anyone want to sell a Touchpad at a resonable price? on: August 27, 2011, 05:44:35 PM
HP cancelled my Touchpad order for whatever reason. Someone who was able to snag 15 of them feel like selling one to me reasonably?

My order at HP was $99.00 + $24.12 Shipping + $5.69 Tax = $128.81 Total.

Does anyone want to sell me a 16gb Touchpad for $128.81 shipped or a 32gb for $50 more?
6  Economy / Currency exchange / Gox is Down, Kind of... on: August 25, 2011, 02:24:13 AM
The website was down for a while, but is back up now.

It isn't processing trades though. GoxLive shows the last trade as an hour ago.  I have transferred BTC into Gox and they showed up. I have put in a new sell order and it is just sitting there with a status of 'in queue.'  Looks like maybe the site recovered from a problem and is sitting in a trades-off position...
7  Alternate cryptocurrencies / Altcoin Discussion / Someone wiped out the buy book on i0 coins this morning on: August 22, 2011, 04:30:18 PM
Someone sold A TON OF i0 COINS overnight. Woke up to an empty buy book. Lost about 10 BTC on i0, ohh well.  Made out fairly decently on IX to cover the loss on i0.
8  Alternate cryptocurrencies / Altcoin Discussion / i0 Coin Issues on: August 17, 2011, 08:41:19 PM
There have been a bunch of issues noted in many different threads regarding the i0 coin clients. I just wanted to make a thread to discuss issues in a central location.

i0coind also seems to have a bug regarding it's NTP implementation.

One of the changes between i0coin and bitcoin was that it was trying to keep the clock more accurate by polling an NTP time server every 5 minutes. It looks like the code to do this isn't very well thought out, and will hang if the ntp server it randomly picks doesn't respond. It doesn't retry, and it doesn't give up after a while, it just freezes.

Since it's choosing a different NTP server each time from a random pool of volunteer NTP servers on the internet, it's not improbable that one of them will stop responding occasionally. Eventually all iocoind processes will hang due to this.

Before the launch, he did say the coind was locking up on him randomly for no reason.
It seems i0coin was made with a branch of bitcoin that has known locking issues when it generates new a new address.

Is anyone else's Win64 client crashing for them in -server mode? I'm running i0coin.exe in -server mode and have my i0coin.conf setup correctly with the following:

rpcuser=user
rpcpassword=pass
rpcallowip=192.168.1.*
rpcport=7332
server=1

Every hour (or less) I notice that my miners return "Problem communicating with Bitcoin RPC". I'm 100% certain that I'm hitting the correct i0coin instance, since I've already managed to generate 4 confirmed blocks, and they are now in my wallet.

Killing i0coin.exe and then restarting it seems to fix the issue. Anyone reason as to why this might occur? Right now I have 14 connections, but I had ~52 connections earlier.

Having the exact same issue, although about every 20 mins.  Doesn't look like anything is wrong, but the i0coin client stops downloading blocks. Terminate the process and restart and it downloads 50 blocks real quick and starts accepting shares from my miners again.

Add any other issues you are having...
9  Alternate cryptocurrencies / Altcoin Discussion / i0 Coin Exchange on: August 17, 2011, 06:02:31 PM
Offline for everyone?  I hope DoubleC didn't disappear with all of our $$$$$. [EDIT -> DoubleC disappearing with our $$ was a joke.  Take it as such]
10  Economy / Speculation / Someone just bought a shit load of BTC on MtGox on: August 09, 2011, 03:50:07 AM
Jumped just over $1 in less than 10 mins.  It was a huge buy wall just waiting for sell orders.
11  Economy / Lending / IBB Loan Request on: August 09, 2011, 12:34:34 AM
Amount Requested: 5 BTC
Payback Timeframe: 6 days (End of Day on 14 Aug 2011)
Reason: Electricity Bill

1XNzcjFKbZutNwEtSmYBHoDWoWuP6MPg4

Thanks,
Mike
12  Economy / Goods / [all gone] Dirt 3 Game Download - 0.6 BTC on: August 08, 2011, 11:58:26 PM
I have 4 download codes for Dirt 3 for sale for .6 BTC each.

PM if you are interested.
13  Economy / Goods / FS: 4 x XFX Reference 6870 @ 300mh/s each - $150ea on: August 05, 2011, 07:59:44 PM
Gently mined with.  Each card is getting 300mh/s temps never been out of the 60's. These are easy on the power consumption too.
14  Economy / Goods / Brand New Zyxel 16 port Gigabit Switch - $100 + Actual Shipping on: August 03, 2011, 11:42:04 PM
I have a few of these Zyxel 16 port Gigabit Switches for sale. Bought a bunch when switching my home and office from 100mbps switches to 1gbps switches. Brand New, never used. I have two of these running in my rack at home and another one connecting my mining servers.

I had my mining servers plugged into a DLink gigabit 8port switch and for whatever reason the mining servers have cooked two of the dlink switches. They got REALLY hot and then all of the sudden the LEDs went out and nothing worked. Thought it might have been a power surge and replaced the one DLink with an identical one and the same thing happened 3 days later. Eitherway, these are cool to the touch on the mining setup. No problems since installing them.

Amazon has them for $122 + $10 shipping (http://amzn.com/B004EIFCHK).

Payment via BTC using mtgox rate at time payment is sent. Will ship same day via the shipping method of your choice. You will pay actual shipping cost based on the method you chose.

15  Economy / Lending / Loan Request on: August 03, 2011, 11:09:41 PM
Need a 10BTC loan for 5-7 days to pay the (rather large) electric bill. Will generate that many BTC in the next week to repay.

1XNzcjFKbZutNwEtSmYBHoDWoWuP6MPg4

Thanks,
Mike
16  Economy / Goods / [Sold] BRAND NEW Sapphire Radeon HD 5850 XTREME 1 GB - $175 + Ship on: July 30, 2011, 08:53:32 PM
Okay... For those who have PM'd me, I cannot see your PM's after the forum moved domains...

I have $165.13 USD in each of these cards.  I would like to make about $10 a piece on them. So lets call it $175 plus actual shipping.

1 of them fits into a USPS Medium Flat Rate Box (Can be used for Domestic Priority Mail ($10.95) and International Priority Mail ($27.95 to Canada and Mexico- $45.50 to all other countries, 20 lb weight limit applies)).

I don't have a Large Flat Rate Box handy, but would assume I can get two in one of those (Can be used for Domestic Priority Mail ($14.95) and International Priority Mail ($35.50 to Canada and Mexico; $58.50 to all other countries, 20 lb weight limit applies)).

UPS could be cheaper, you pick the shipping method and you will pay the actual cost

Payment via BTC (converted at the time BTC are sent).

If you are interested, PM me.
17  Other / CPU/GPU Bitcoin mining hardware / How many kWh are you using a month? on: July 25, 2011, 05:57:32 PM
Just got my first substantial electricity bill as a result of BTC mining... Just curious what kind of electricity bills other miners are getting.

This is for about 3 weeks of mining at around 5/8 of what I am mining now. Before BTC mining, in the summer months I was getting bills for 900-1000 kWh.

Total kWh used 3,233 at a total cost of $400.

Will have my first FULL bill in 2 weeks and will report back then.

18  Economy / Currency exchange / Tradehill Down? on: July 07, 2011, 12:23:32 PM
Tradehill has not worked for me all morning (on two different ISPs)... Down for anyone else?
19  Other / CPU/GPU Bitcoin mining hardware / Thought for cooling multiple cards... on: June 30, 2011, 04:37:23 PM
Was thinking how to cool multiple card setups without having to use riser cables (while a great idea, they are kind of pricey and I don't feel like building a wood (or other) chassis to hold the cards on top).

What if you dremeled off the one side of the fan shroud (see my professionally produced diagram below), and put a fan there to push air directly through. This would probably only work on 3 or 4 card setups that use the reference style fan shroud (the boxy looking one) and would only work on cards where the power is coming out the top not the side.



You could get a 120mm (or whatever fan size fits your setup - smaller for 3 card setup & bigger for 4 card setup) fan that pushes 100+ CFM directly through the card. Would be easy to mount a fan there with some zipties or small L brackets

Seems something like this would be much more efficient. You aren't pulling 'pre-heated air' off the card below it. It wouldn't have to make that 90 degree turn which slows the air down. You could drastically slow down the onboard fan (been reading a lot of people having issues with their fans dying after a month or so running at high %). Maybe even seal off the side port with a thin piece of plexi or something (would probably definitely have to seal off the fan port on the card that has the exposed fan port to keep air from diverting out).

Anyone see any flaws with this idea (other than voiding warranty)? I haven't taken one apart yet, so I don't know what kind of components could be in the way.

Let me know what you think.
20  Economy / Currency exchange / Mt Gox: idle-logout way to quick? on: June 28, 2011, 08:41:29 PM
Just noticed this yesterday, but I think MtGox has changed their idle logout time to something ridiculously short. I used to be able to keep it open all day checking once in a while. Now I feel like I have to login every 5-10 minutes. I realize they are trying to maximize security, but it needs to be longer! Anyone else having this issue?
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