Topic: High Efficiency FPGA & ASIC Bitcoin Mining Devices https://BTCFPGA.com - page 102. (Read 218469 times)

Not doubting you here or anything BUT is that safe ? Anybody can be wiretappin', you know ...

Please email me - [email protected] with your error

or you can call me at 315-514-0269 and I can process your credit/debit card over the phone and get the order confirmed right away

thank you

Tried ordering the Quad using Google Checkout but there was an error, transaction didn't went through.

Eldentyrell said that he is not going to even look at requests until in a week, so there's no way anything can ship with that firmware anytime soon.
It also looks like you're going to be forced to use some bloaty Java mining software provided by him if you want to use his bitstream, as he didn't release sufficient information to allow this to be ported to cgminer or MPBM.

Have you tested the new Tricone miner on the boards yet? Does this ship with the boards which are being sent out next week?

Phil

Hello

Sorry for the confusion, 2-4 weeks means it will ship in the fourth week at the very latest. It does not mean exactly 30 days, your board will be shipping either 06/04 or 06/05, we are building and testing the units this weekend and are shipping them and filling all orders this week.

The good news is future orders will not have to wait anywhere near as long and in a few weeks it is likely the wait will only be a couple days instead of a few weeks, we took some extra time here because we wanted to make some changes like adding a fan to every single chip for added performance.

Thanks for being patient but it will be worth the wait next week when you receive your unit

also if you have any more questions feel free to email me [email protected]

thanks!

Tom
BTCFPGA.com

I ordered a full board on May 4th at about 9:30 AM Pacific Time. This means that the four week window to ship my board out officially ended about four hours ago.

Did you guys ship already, and just haven't sent out tracking info yet? Or do I get that discount?

dang it! you qouted my typo "interesting times" i meant. but now i can't go edit it! my shame shall live forever.  (doubly so since i'm qouting to too now! oh no!)

Correct

with the TML bitstream, if i understand it all right, your 800 Mhash set up just passed 1040, even after his commission. interestingimes.

Thanks for the update, I was just about to ask if I wanted another couple of child boards, when could they be shipped. And u have answered

Our PCB Boards are shipping from the fabricators on 05/29 when they arrive here a few days later we will be able to build all currently ordered units and get everyone's order shipped to them within the guaranteed 2-4 week window.

Thank you for everyone's support and we know you will LOVE our FPGA mining products. We are projecting a big wave of sales after more of these start to hit the "wild" and will be using the influx of revenue to build a good enough stock of these units where we can simply ship from pre-built stock instead of taking orders, then building and shipping like we had to do here.

Customers ordering in the coming weeks, and months will see 2-4 day shipping times instead of 2-4 weeks.

Thanks again for your interest in BTCFPGA.com, the ModMiner Quad and I hope everyone else is having as fun of a holiday weekend as I am

We're still waiting on getting them from the manufacturer. The boards will ship shortly after we receive them. I see you ordered 1 backplane and 1 Spartan 6 daughter board 9 days ago on 5/14/12. Note that we guarantee our boards will be shipped out within 30 days of the purchase date or we will refund 9% of the final cost.

Just wondering when is the next units shipping as I ordered a couple of weeks ago and was wondering?

Excellent so you could seen be advertising your boards at 1GH/s@60W if eldentyrell new bitstream pulls through.  Definitely competing with the BFL-Single then with your twelve month warranty  

Yeah I'm sure we will work something out. I'm not sure how this is going to work as eldentyrell hasn't given out any details of pricing or licensing. I don't even know if he will be offering licensing to the FPGA board makers. It would be stupid not to though.... so I figure he will.

It's vcool that your going to be licensing it but will it include customers who receive there boards before eldentyrell new bitstream is released.  Or will you just ask for a small fee from them hopefully cheaper than eldentyrell fee due to your license?

First off the fans don't run off the power converter they tie directly to the 12v supply from the molex so we dont have to worry about the power used by those. Using the number he posted 18.4 MH/s per watt at 245 MH/s you would be using 13.31 watts per FPGA or 53.24 watts for the whole board another thing to note is he says this is for the whole board including power loss in the power converters these spartan 6 chips run off of 2 power supplies 1 3.3v and 1 1.25v(actually 3 but VCCAUX and VCCIO can be combined on the 3.3v) so to get the actual wattage used by the 1.25v power converter it would be 53.24 watts - power lost in converting 12v to 1.25v - power lost in converting 12v to 3.3v - power used by the 3.3v supply - power lost from copper trace resistance

I'm not sure what the end number would be but I know theres not very much power used from the 3.3v

A lot of power is lost in converting 12v to 1.25v I think most power converters will loose 10-20% power doing a 12v to 1.25v conversion at full load so lets just say 15% you come out with 45.9 watts then you still have to subtract the power used by the 3.3v supply I'll just take a wild guess and say 3 watts(may be more may be less idk?) 45.9 - 3 = 42.9watts used by the 1.25v supply

the power converter can output 40 Amps and actually more than that but its not recommended.

1.25v @ 40 Amps = 50 watts

when 42.9 are needed

These numbers really arn't accurate at all though just a rough estimate

Another thing eldentyrell stated:



Yes we are.
I'm not sure how eldentyrell is going to be selling it.... I sent him a email asking about licensing and power requirements but he wouldn't give up any info, he just told me to wait until later this month when he announces it. I guess we'll just have to wait and see.

Looking at "eldentyrell" thread it looks like the MH/J goes down a bit when it's pushed.  So the boards with fans it looks like it would to need up to 50A.  Reading what he saying is that three Sparten6 at 245MH/s would use 39W so with the boards also powering fans maybe three Sparten'6 per board would be best unless the boards can operate at 58W instead of 45W at 800MH/s with the fans.  58W tho for 980MH/s is still good tho beating the BFL-Single on both hashrate and efficiency.  Or with just three Sparten6 modules with fans per board/backplane on the new bitstream at 44W for 735MH/s saving $250 per board or a fourth board for every three you buy.  Tho maths could be wrong and "eldentyrell" could change his figures.

"eldentyrell" is going to be selling this bitstream is this FPGA company thinking of licensing it?

Yep. The power converter can operate over 40A, up to 70A, but care should be taken to keep it cool and operating over 40A would make the lifespan of the power converter shorter