$400K? What went up 10x overnight ... BTC or the price of blades?

Seriously though these blades are good in the sense that people can continue to build jerry-rigged setups using ASICs. Can wait to see these put into milk crates.

Also look at p2pool. Due to the way the protocol works there is always a (very small) possibility that stale p2pool shares could contain the solution for the current Bitcoin block.

Most people run their blades at the HIGH clock speed, giving almost 13 GH/s @ 120W.

In solo mining where everything is local there are 3 types of network traffic:

1) Traffic between miner(s) and pool server (stratum/GBT/getwork on LAN)
2) Traffic between pool server and bitcoind (none if both are on the same server)
3) Traffic between bitcoind and internet

Your initial post asked about internet traffic requirements (item 3)).

The answer to your example is 210 meg on the LAN, but this is talking about item 1). It does has nothing to do with internet connection speed.

Unless you are solving all the blocks on the network the internet traffic used by bitcoind has little to do with the hashrate of your solomining setup.

Keep in mind that this traffic you are talking about (between the miner and the pool server) does not go out on the internet for typical solo mining setups. Why? Because you typically have your miner(s), pool server and bitcoind all on the same local area network. The only thing that goes out on the internet is your bitcoind network traffc. All the stratum / GBT stuff happens on the local network.

If you are solo mining and everything is local, your hash rate does not affect your internet connection speed requirements.

Instead, if you are running a full bitcoind node your connection requirements are dictated by the current transaction rate, blocksizes on the Bitcoin network AND most importantly the number of peer nodes connecting to you.

If you choose not to run a full bitcoind node, you save bandwidth because peers cannot directly connect to you. However when you solve a block it will take much longer for it propagate out and you risk orphaning it and losing the reward.

Edit: You can restrict the max. number of incoming peers to you bitcoind through a configuration parameter in bitcoinconf.

I got my tracking number 51 hours after paying them. However, they clearly shipped well within their 48 hour guarantee. On the one hand, I am impressed. On the other hand, considering that with the price they are charging an optimistic ROI is 9-12 months I would expect nothing less.

Soros Shorts; 1 unit; paid from walletbit balance on feb03; walletbit confirmed; no tracking ; no order number; no email;

There is a benefit in using a compiled language that does not have garbage collection and gives you access to low-level OS primitives - you can write really tight high performance code. I think that C++ would be a better choice over C, though.

Even the pricing does not make sense. Express shipping for the 60GH/s miner with FPGA trade-in is $115. For a regular (non trade-in) 60GH/s miner express shipping is $225. Aren't they both the same physical product?

Works like a charm. Apparently the link was too obvious for me to notice.

Can someone remind me what the BTC Guild API key is for? I looked at the OP as well as the online support pages but there was no mention of an API.

I need to write a program to power-cycle my Avalon when it hasn't submitted a share after X number of seconds. I can easily scrape the dashboard but I was wondering if there was a less silly way to get this information.

My Feb 3 order is also still missing from the orders page. Walletbit confirmed that they (Avalon) have the BTC and my correct shipping address so I am not really concerned.

However I don't know what my order id is ... just the txid and walletbit batch reference.

How could a sub-unit of a commercial building be responsible for the balance of a 3-phase transformer feeding the entire building? It doesn't even sound like he has access to all 3 phases.

It is useful when buying or selling BTC for cash with some guy you are meeting at a Starbucks.

That was a serious question. How would you distinguish taint from blame if people implemented your scheme? For starters, the standard client does not allow you to isolate coins.

What will you do if someone donated tainted coins to 1Eu6P1eRSewoqf8GZcYoBtMtXG1865Umjh?

Elsewhere people are still buying MMQs. That is like 15 BTC per 1 GH/s at the current exchange rate.  I wouldn't be surprised if this auction went to 150 BTC.

Try a different browser. It worked for me.

I got an Avalon that initially appeared to be a lemon. cgminer would not start through the web interface. It could only be started from an SSH term using a start - ctrl-C - start - ctrl-C ... sequence until the units were coaxed into hashing properly. Otherwise I'd get "FPGA contoller mess up" "Avalon initialized" messages looping over and over. Once started, hashing at 282 MHz was a little unstable with the hash rate bouncing around a little.

After reading some of the comments in the other thread, I replaced the supplied Corsair GS700 PSU with a Fortress 750W Platinum I had lying around. This solved the cgminer  starting problem and the unsteady hash rate. In fact, when I switched the clock to 300 MHz it now hashes perfectly at a steady 71.5 Gh/s with the somewhat upgraded PSU.

You might want to have look at your power supply if you are having these problems.