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1  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] DOGE POOL! FAST-POOL.COM - 0% FEE much DOGECOIN on: December 19, 2013, 07:02:16 PM
Hi could you please unlock my account named lilmiko. Thanks
2  Bitcoin / Bitcoin Discussion / Re: I'm MtGox, here's my side. on: June 21, 2011, 12:55:21 AM

Although the question remains, what was the motivation of the hacker to crash the market?

I can make an educated guess but dont take it as the absolute reason.

The hacker knew of the $1000 equiv maximum withdrawal daily limit and got access to a huge account (people arguing it may actually be mtgox aka the whole exchange account) and then proceeded to use half the funds to crash the market value down to 0.01 per BTC.

The hacker clearly didnt understand that the withdrawal is based on daily(or weekly, not 100% sure myself) weighted price thus when he crashed it down with half the BTC in the account he figured he would be able to withdraw the maximum of the remainder which would be 100 000 BTC except this failed miserably because the weighted price afaik were around $4.50 so he could withdraw a maximum of ~222 BTC.

This is my understanding as to why we are fortunate enough not to have lost 100 000 BTC with the crash withdrawal.

The interesting part however is that kevin seems to be the only person who gained a large purchase >260k BTC out of this which in itself makes it suspicious since thousands of traders were actively trading at that point and simply going with the "he was the lucky one" argument also doesnt fit.

Yes this was the story.. until the Kevin thing came along. Kevin's name can be cleared if we know that the hacker put in a bid for .01 on a second compromised account?

MagicalTux, to prove that Kevin is in on it, you must prove that  the hacker did not attempt to do this. Show us the bids below Kevin's that were not hit, and find out if those bids were put in my the legitimate user.  



Yes and it would help if he posted time stamps that matter: The time at which Kevin put his order in for 26k BTC @ 0.0101 and the time stamp where the hacker started the sell off. When they logged in is meaningless...
3  Bitcoin / Mining / Re: heterogeneous ati system on: May 19, 2011, 04:36:38 AM
Yep running a 6950 and a 5850 in my pc right now  Grin
4  Bitcoin / Mining / Re: I can't see movies (Xvid-avi) when im mining on: May 13, 2011, 07:26:02 PM
The solution is to only use your cpu to watch videos. If you're using VLC (and you should be) just go into preferences and turn off hardware acceleration.

Hope that helps!
5  Economy / Marketplace / Re: Buy and Sell Mt Gox USD on: May 13, 2011, 01:42:29 AM
Selling ~10 BTC or equivalent MTGoxUSD for paypal USD. Please PM me to arrange a trade. I would like to use clearcoin to make the transaction as safe as possible.
6  Bitcoin / Mining / Re: 2nd GPU = 14% CPU usage on: May 12, 2011, 12:32:29 AM
Consider yourself lucky as I get 50% cpu usage with both my 6950 and 5850 mining. The best I can get is 25% usage by limiting the affinity to only 1 core for both miners.

I've heard linux doesn't have this problem though so you could try that.
7  Bitcoin / Mining / Re: 50% cpu usage when mining with 2 gpus on: April 19, 2011, 12:55:34 AM
You should drop the 4850. 4xxx cards have poor hash to power consumption ratio. Even with your electricty cost I think you're actually losing money on the 4850

Hmm I guess I will return the 4850 to retirement.  Sad I'll have to do some calculations to see just how it's costing me.
8  Bitcoin / Mining / 50% cpu usage when mining with 2 gpus on: April 16, 2011, 10:26:55 PM
So I've been mining with my 6950 and 4850 for about a month now and just recently I noticed that my cpu usage is at 50% when mining.

If I unplug the cable to my 4850 and just mine with my 6950 the cpu usage is ~0%.

I quickly found that I was not the only person having this problem as seen in this thread: http://bitcointalk.org/index.php?topic=4446.0
Unfortunately there doesn't seem to be a definitive answer as to how to fix this problem.

My electricity rate is pretty cheap (6.62 /kWh) but I'm wondering if it's even worth mining with my 4850 as I am paying to power it and half my cpu for ~70000 kH/s.

Relevant specs:
poclbm 2011-03-25
Windows 7 Professional x64
AMD Stream 2.2
Catalyst 11.3

AMD 6950 2GB unlocked shaders
AMD 4850
Intel i5 2500k

Any help is appreciated.
9  Bitcoin / Mining / Re: poclbm mining problems with 6950 on: April 10, 2011, 06:46:09 PM
Same problem with my 6950 and this is the main reason I don't mine when I actually want to use my computer.
For flash objects if you right click, go to settings and uncheck "enable hardware acceleration" it shouldn't use your gpu any longer. Could be a problem if your cpu isn't powerful enough render full screen flash videos though.
10  Bitcoin / Mining / Anyone try AMD Stream 2.4? on: April 08, 2011, 04:31:18 AM
I was wondering if anyone has tried AMD's new version of stream or as they now call it AMD Accelerated Parallel Processing (APP) 2.4

How does it affect your MH/s compared to older versions?

I was using 2.2 before I was forced to reformat my computer so I'm just going to continue with that. Hopefully it works good with catalyst 11.3.
11  Bitcoin / Pools / Re: [~50 Gh/s Mining Pool] Get 1-2% more with long polling ! No failed blocks. on: March 16, 2011, 10:17:23 PM
Tell me your login name so can check it at my side.
What is hashing speed of your miners ?

BTW, if you see a stale hash instantly after "new block" message, it means that your miner sent it's result just some milliseconds before or after LP notify, so it's normal. But 2% is definitely not normal for Long Polling. Is this number decreasing now or not ?

My login is jakiedentures (at) gmail.com
I get ~300 MH/s on my 6950 and ~70 MH/s on my 4850. The stale share % has not gone down and is sitting at 0.93% and 2.47% respectively

12  Bitcoin / Pools / Re: [~50 Gh/s Mining Pool] Get 1-2% more with long polling ! No failed blocks. on: March 15, 2011, 10:58:18 PM
Hey Tycho, Great pool you've got running however I've been using the latest version (2011/03/11) m0mchil's python miner but it seems that long polling isn't working for some reason.

I get these messages when mining occasionally:
Quote
15/03/2011 17:41:31, long poll: new block
Stale hash. To reduce stales, use long polling, e.g. latest m0mchil's python min

And my stats page says I've been submitting 0.97% and 2.21% stale shares for my miners

Any idea how I can get long polling working? There's no extra flags required to enable it, correct?
13  Bitcoin / Mining / Re: Your electricity costs? on: March 12, 2011, 02:35:40 AM
6.38 /kWh here is Manitoba, Canada  Cheesy
14  Bitcoin / Mining / Re: Software to optimize gpu performance? on: March 02, 2011, 11:42:03 PM
LO I can get 282Mh/s + with an OCed 6870 and 235+ Mh/s on stock

What version of ATI Stream are you using? I'm on 2.3 but I'm going to try an older version because I should be getting 300Mh/s
15  Bitcoin / Mining / Re: Running two different cards on: March 02, 2011, 04:51:40 AM
Just got my 4850 running along side my 6950  Cheesy

It seems the second card needs to be hooked up to a display and be sending some signal. I hooked mine up to the second hdmi port on my monitor and used CCC to extend my desktop. Then poclbm.exe was able to see it.
16  Bitcoin / Mining / Re: Question on: March 02, 2011, 12:46:55 AM
I am very new to the Bitcoin community so I can't comment on your question but his options for PCI-E x1 gpu's are very limited and low preforming http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007709%20600007854&IsNodeId=1&name=PCI%20Express%20x1

17  Bitcoin / Mining / Re: Software to optimize gpu performance? on: March 02, 2011, 12:38:06 AM
I am only able to get around 230 MH/s with my 6950 2GB (running 100% stock) with most every combination of -v and -w 64, 128, 256...

I may try unlocking the extra shaders and/or OCing tonight and see how it goes.
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