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on: September 21, 2011, 07:04:12 AM

Well, I have to say that I have had my own FPGA cluster under development for some time. I originally designed it for hash breaking (such as MD5) but why not Bitcoin mining as well. The specification is quite a bit different than what has been proposed here. My design has one baseboard with an Atmel AVR USB-enabled microcontroller that handles all host communication and FPGAs communicate via I²C. The baseboard provides a JTAG chain and a 5V/5A power supply. If some slack conditions are met (i.e. I²C and JTAG voltage levels) then the system is completely agnostic to what is doing the actual processing. The mechanical layout is copied from Arduino, so that modules simply stack on top of each other. Currently I am in the process of laying out the baseboard and after that I will probably do a simple Spartan-3E QFP processing unit. Sure, S3E sucks at mining BTC hashes but it's a start and you can later on develop more sophisticated units like S6LX150. Summa summarum: I am hesitant to help with design that I disagree with (the design discussed in this thread). That and I know absolutely nothing about the TI MSP430. But I'll keep watching this space...

on: September 21, 2011, 06:00:55 AM

Hi guys. What's up with this development? Nothing has happened in a few weeks, is it dead? ngzhang: Your miner board is very interesting! Do you have any real-world performance data? Is the board stable? What's the current consumption on the FPGAs? I'm looking forward to the schematics and other files on that board.

on: September 19, 2011, 06:48:44 AM

Have you had any luck finding your computer?

on: September 16, 2011, 10:22:00 AM

Quote from: Kolor on September 16, 2011, 09:53:34 AM This is a really strange request but here goes. I need to get in touch with Slush, my shop was broken into last night and my mining PC (amungst other things) was stolen. That mining PC is scheduled to start mining @ 00:00 ~GMT so I'm hoping the robbing feckers plug it in over night at which point it will start senduing data to slush's pool. Is it possible to retrieve the IP address of the machine connecting? The Police (not the band) have requested it so hopefully I can get my stuff back and we can put the pikey gits in the slammer. I think the pool server does record IP addresses for all workers. You can contact slush by sending email to info@bitcoin.nz or via the bitcoin.org forum at the username slush. Hope you get your computer back!

on: September 16, 2011, 08:08:24 AM

I would recommend against using the baht-symbol for Bitcoin, since it already is the official symbol of Thai currency, baht. This could lead to confusion. http://www.fileformat.info/info/unicode/char/0e3f/index.htm http://en.wikipedia.org/wiki/Baht

on: September 16, 2011, 07:11:18 AM

Quote from: entropy137 on September 16, 2011, 04:55:43 AM This shit is fucking stupid. I've spent weeks on this forum and now have a serious question about mining and can't post in the mining section. At first I thought it was related to the hack or something but I noticed that everyone else can post but I can't. So if anyone can answer my mining question: I have a 6970 mining at 328MHashes/s I'm using guiminer on Windows 7 with the flags -v -w 128 -f 30. How can I increase my mining speed since the bitcoin hardware comparison website said you can get around 385 out of it. Also, if I decide to buy another GPU, to put on the second PCIe slot, does it have to be the same card and manufacturer? Would really appreciate the help. Just because you have a 6970 doesn't mean you can get 385MH/s. Many different graphics card vendors use the same GPU (6970) and they might have different clock speeds and all sorts of stuff like that which then affect your mining speed. You can probably get some more juice out of it by playing with the flags. Try to increase them a bit, mine for a few minutes see what the average is. If it's higher, then raise them a bit more until they start degrading. Finetune the parameters -- you'll get the point.

on: September 15, 2011, 05:47:52 AM

Quote from: Asymptote on September 15, 2011, 01:48:50 AM Has anyone started a company to professionally produce these? Not like a huge mega venture but just something small and professional? I don't think that's going to happen very soon... Individuals may order batches of even tens of mining boards but a whole company? That sounds too risky to me, atleast.

on: September 15, 2011, 05:39:01 AM

Quote from: b1m2x3 on September 15, 2011, 12:24:26 AM stuff like this causes threads (like this) to be noob post count boosters You have to get your teeth cut somehow, don't you?

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