Hi, Lakota Nation really already has one, see these links :

http://freelakotabank.com/currency.php

Lakota Nation : http://www.lakotafreedom.com/

See this ( http://en.wikipedia.org/wiki/United_States_v._Sioux_Nation_of_Indians ) 

Maybe they will convert their currency to and from BTC, who can convince them?

I tried searching the forums and couldn't find what I was looking for, I am sorry if this is a duplicate. I recently bought a new motherboard that has several PCIE slots and wanted to run two 5830s on it. Up until now both of the 5830s were mining on two other PCs and both ran fine, and both were running linuxcoin. I put both of these on the new board and created a new linuxcoin stick and started mining. This does work however there are two problems.

1. The card in the PCIE x8 lane can not be overclocked, if I use atitweak or amdoverdrivectrl the card will fall to 0 Mhash. The value I try to set does not matter, even if all I do is underclock the memory. This card works normally on another board. I can overclock the first card with no problems at all.

2. The same card with the first problem runs only at about 145 Mhash without overclocking. It also eventually stops mining showing connection problems to the pool even though the first card will continue mining.

These cards are not connected via a crossfire bridge. I am using DiabloMiner and I have started one session for each card separately, and together with no difference. When I start mining after a reboot, both cards run ~245 Mhash, the first card will remain there, the second will slowly fall and stabilize at ~145. Heat is not an issue, the first card is hotter than the one that is slow in any case, the slow card is at 63 C, the hotter one at 69.

Any ideas? I have tried the 2.1 SDK, no change. I am using the latest linuxcoin. Both cards are Sapphires, same style and the motherboard is a Gigabyte 990XA-UD3. Thank you

Yea I was wondering that as well, if the motherboard was somehow unable to supply enough power from the slot to the card so it was making up the difference in some strange way. That does make good sense about the inefficiency of the power supply though, the GPU must be using whatever it needs to use, and then the rest of the power must be being wasted. That box is still totally stable and hashing away with no trouble at all though, so that is good anyway. Thanks

Hmm, that is interesting stuff for sure. The power supply that is hitting 275 watts is not the one driving the board though, nor is it the 550 watt rated one. The 550 watt rated power supply would just shut down when I attempted to start the GPU hashing when it was the only one running the motherboard and the GPU, so I took another older 300 watt rated power supply and jumpered it to start when I turn it on, and connected it to *only* the GPU. The $20 Okia power supply is connected to only the motherboard and the fans. The 300 watt rated power supply runs steady at ~275 watts according to the Kill-a-watt, I didn't actually measure what the Okia is running at. Its all just a bunch of junk, really, but it is working I guess. What I found most interesting is that *just* the GPU runs at ~275 watts in this setup, but the exact same GPU in a modern AM3 board runs at ~200 watts for the entire machine, including the board / cpu / ram. Thanks for the info.

Thank you for the reply, the power supply that is driving the board is this :

http://www.newegg.com/Product/Product.aspx?Item=N82E16817162020

For sure it is junk, but the original power supply that ran that board in a half height case was only 165 watt, and that ran fine. Seems like the 5830 needs a lot of power in this board, and I don't know why. I have another machine with an AM3 Sempron and a 5830, and the whole box only uses ~210 watts according to the Kill-a-watt. This machine is using 265-275 watts for only the video card, and the 550 is running just the board / ram / cpu and fans.

I suppose I could just buy a decent power supply.

Hello
 I recently got a 5830 working in an old P4 Intel motherboard, I had quite a bit of trouble getting it working. I had a 550 watt power supply driving only the board, memory, CPU, three fans (including the CPU fan) and the video card. Its booting off of a USB stick, and there is nothing else attached. Every time I would try to start hashing, the machine would shut down, finally I was able to get it working by just jumpering another 300 watt power supply on and attaching it to the video card only. I didn't measure the draw of the power supply driving the board / cpu but I did measure the one driving only the card, and it was ~225 watts.

Its been stable for several days at this point, but can't be overclocked (I'm thinking due to power for some reason) and only is hashing at 250Mhash. Any ideas as to why? I'm guessing that the main power supply isn't really able to put out 550 watts, and maybe since its an older PCIE 1/0 slot it isn't putting out enough power through the slot? I had to give back the Kill-a-watt that I was using to measure, so I can't check that now.

Any suggestions would be appreciated, I was going to try to get another card working in the x1 slot that is also on the board, but I'm having second thoughts on that.

Thanks

Hi I am new to the forum, I have questions about hacking together hardware I have laying around to mine. Hope someone can help me out with some suggestions, thanks.