And how much would a factory wafer respin cost from an old maskset, ngzhang? Do you know any numbers there?
just contact with an altera FAE ( is on of my friends  ), he is unwilling to discuss about the price, but leak a message that the A2 GX260 is about 300 USD at a moderate quantity. Just for curiosity, what does 'moderate quantity' means (probably for such largish FPGAs)? 200-500 |
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yep, but you know... these fpgas are tooooo small... You should apply to work for BFL. They're looking for a Mandarin speaking engineer in Asia. Please work for them. NEVER EVER First, never say never ....oops Second, we want you to work for BFL so we can have correct info and not BS crap. I'm sure they cant do jack to you because you're in China. Work for them so you can build better products *HINT HINT* bank transfer or paypal is acceptable. or MTGOX$ redeem code |
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And that's why Spartans6 are called low power devices.
Actually they're called low power devices because somebody in the marketing department decided to call them that.  have you tried to run the 3 cores together but with a 120 degree clock phase separation? |
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And how much would a factory wafer respin cost from an old maskset, ngzhang? Do you know any numbers there?
just contact with an altera FAE ( is on of my friends ), he is unwilling to discuss about the price, but leak a message that the A2 GX260 is about 300 USD at a moderate quantity. If we made some wild assumptions that these were it, and that they could get them for $300 each, that means: $300 x 17 cards per rig x 2 chips per card == $10,200.00 Mini-rig price: $15,295.00 minus $10,200.00 == $5,095.00 So are the PCBs, supporting components, PSU, enclosure, and fans enough to eat that ~$5k? Seems like there could be a decent bit of profit here. certainly not. by experience, as a small amount product (bitcoin mining equipment will NEVER grow up to a traditionally BIG market you know), if the final price is twice as the cost, you will run at loss unless you careful calculation and strict budgeting, and it must be a easy to make stuff. sell the product at least triple of the cost will much better for a flat. "certainly not. by experience, as a small amount product (bitcoin mining equipment will NEVER grow up to a traditionally BIG market you know), if the final price is twice as the cost, you will run at loss unless you careful calculation and strict budgeting, and it must be a easy to make stuff. sell the product at least triple of the cost will much better for a flat. " I dont ander stand "sell the product at least triple of the cost will" do you mean this product (mini rig)should be sold at 3 x $15,295 = $45,885 that means if you produce a stuff cost you 100$, and it's a low quantity product. then in a general way, sell it at 200-300$ will make ends meet. it doesn't matter what BFL do. they could make the singles and minirigs at a unbelievable low cost, or just don't want to earn any money "now". who knows. |
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yep, but you know... these fpgas are tooooo small... You should apply to work for BFL. They're looking for a Mandarin speaking engineer in Asia. Please work for them. NEVER EVER |
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And how much would a factory wafer respin cost from an old maskset, ngzhang? Do you know any numbers there?
just contact with an altera FAE ( is on of my friends ), he is unwilling to discuss about the price, but leak a message that the A2 GX260 is about 300 USD at a moderate quantity. If we made some wild assumptions that these were it, and that they could get them for $300 each, that means: $300 x 17 cards per rig x 2 chips per card == $10,200.00 Mini-rig price: $15,295.00 minus $10,200.00 == $5,095.00 So are the PCBs, supporting components, PSU, enclosure, and fans enough to eat that ~$5k? Seems like there could be a decent bit of profit here. certainly not. by experience, as a small amount product (bitcoin mining equipment will NEVER grow up to a traditionally BIG market you know), if the final price is twice as the cost, you will run at loss unless you careful calculation and strict budgeting, and it must be a easy to make stuff. sell the product at least triple of the cost will much better for a flat. |
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And how much would a factory wafer respin cost from an old maskset, ngzhang? Do you know any numbers there?
just contact with an altera FAE ( is on of my friends ), he is unwilling to discuss about the price, but leak a message that the A2 GX260 is about 300 USD at a moderate quantity. From what I understand A2 GX260 are capable of about 750GH/S ie 1.5 GH/s for 2 = bfl new single (use 17 of them in mini rig) ie if they where sold as singles at about $1000 for 1.5 GH/s --- maybe you should consider using A2 GX260 in your next FPGA development certainly not , 600USD (this is only chip cost) for only 1.5GH/s is unacceptable. plus 100$ additional charge, what is your expected final price for a 700USD cost product? 1000USD? and, A2 is a obsolescent product, A5(Arria V series, 28nm) is much cheaper (20%+)than A2 (at same capacity), but BFL didn't use the faster and cheaper one. maybe it's really hard for them to find enough 2nd hand A5 FPGAs. for now though, let's see what will happen on spartan6 this year. |
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yep, but you know... these fpgas are tooooo small... |
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And how much would a factory wafer respin cost from an old maskset, ngzhang? Do you know any numbers there?
just contact with an altera FAE ( is on of my friends ), he is unwilling to discuss about the price, but leak a message that the A2 GX260 is about 300 USD at a moderate quantity. |
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OK, here are some grapevine news. i asked a seller in the market today, who is one of my best friends. the EP2AGX260 F780 is about 2000USD for a new one (supply is nervous), and 200~350USD for a used one (no problem for a 500pcs order).  |
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What if you shift the clock of the middle ring?
Maybe the voltage internally in the chip in the middle drops to much each clock edge.
a trade-off is: the added GCLKs will consume more power. but i think that's worth trying.  |
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i will update these information after i can confirm. thanks. Thanks very much. The future of my mining operation is hinging on the release of Lancelot...lol I am praying nightly for $500 @ $1/MH/s @ 25W....as I am certain I am not the only one in touch with God currently in regards to this.
If God is unwilling to answer my prayers, I will have no choice but to contact Satan.My present work is push it better than 1$/MH/S, and less than 25W. By present test, running the V3 old bitsteam, Lancelot only consume 15.6W |
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The answer is, Icarus can run Lancelot's first bitstream, but at a lower speed. This is a final upgrade for Icarus system.
Due to lack of some hardware features, Icarus can not run Lancelot 's future bitsteams.
As I was too lazy to read the entire thread.... Is there any chance you could update the first post to summarize a production update ? Current 'development' speeds, power consumption etc ? Projected shipping date(s) for batches etc ? Thanks and I am looking forward to this. bitlane. i will update these information after i can confirm. thanks. |
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enable the internal terminal resistor, and set them to 25 ohm
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That says Lancelot is compatible with the Icarus bitstream, I want to know if the other way around (Icarus compatible with the future Lancelot bitstream) is also true  . The answer is, Icarus can run Lancelot's first bitstream, but at a lower speed. This is a final upgrade for Icarus system. Due to lack of some hardware features, Icarus can not run Lancelot 's future bitsteams. |
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I imagine that this is the mother you were speaking of? Looks beautiful! Will this baby be power 20 boards?
certainly not... it's only a small tool for my testing work, cost one night time to design... but soldering them and make the cables really cost me sometime. the motherboard project will start after 1st batch of lancelot. |
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Wow that is awesome. Is it just for your testing purposes, or will they be for sale?
do you want one? I do. Are you selling these? What is the price?
Sunny regards from the Island,
Ecki
ok, i only made about 10 of them for my testing purpose. but there are already a plan when lancelot come out, i will let this adapter as a order-able accessory. price? i don't know now. need some cost check first. but i think maybe about 20~30$. |
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Wow that is awesome. Is it just for your testing purposes, or will they be for sale?
do you want one? Not me personally, but I imagine that some of the guys with large clusters might make use of them. What's the maximum power draw for each port, and the total maximum? each port is a 3.81mm Euro terminal block. 10A max. total depends on your ATX power, i think 400W is OK. |
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Wow that is awesome. Is it just for your testing purposes, or will they be for sale?
do you want one? |
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