Topic: FPGA Mining Rig, Meet NR104 by NocRoom LLC - page 2. (Read 1554 times)

you wrote

Interface   PCI-E, USB
Power   75W PCI-E + 150W 8-Pin AUX

In the photo I see that you use the USB ports as the ports of PCI-e free.

USB 2 0 - 5V 500mA or 2.5 for each port.
USB 3.0 is 5V 900ma, or 4.5 W per port.

Why use a 1600 watt power supply for this configuration?

Will the USB interface be suitable for other algorithms?

What is in the M2 port?

Correct. But OP claims 60 days ROI. That's a profitability metric. From that moment on he's leaning out the window and he's gotta back up his claim to potential buyers.

Not OP advocate, but FPGA can be reprogrammed and these changes are not a problem to be implemented in FPGA the fact that the devs are putting the FPGAs in the same bag as ASICs makes me question their statement and its pure PR but again time will proof the only thing i can think of they are increasing the "space" requirement for the FPGA to implement the algo not the speed.

Please forgive the skeptics here, but there’s been too many promises that haven’t been kept.

A couple of questions...
Does going to 32gb ram improve hashing performance?  Or would it be used for future algos?

How did you arrive at the 60 day ROI number?

Thanks

I challenge you to build this rig for $16000. Put it in a server case run it at room temp and not melt your cards. A lot of work went into being able to cram 4 of these into a case and keep the temps down. lots of trial and error. We had to get very creative with our cooling solutions to keep the size down and spent a bunch of money. Sure were going to make a profit. But it is not the obscene amount you seem to think it is. Oh, and these are not BCU1525's. That descriptor belongs to another company.

I don’t see any value in this. 4x BCU1525 (available now) plus other parts will cost you at max $16000. So this has a cost $9000 added on top just for “turn-key” solution?

WOW , OK. I will respond to your concerns in order.

 "so, right now c7 is going to be forked and in theory your gear will drop to 4x of its speed. You are askinf 25000 for it."

  I have heard that Monero will be forking in the future. Are you suggesting that we should just hash on it for ourselves until if/when fork occurs. Or should we release it and let people mine on it for a month or so until fork. Right now there are 3 non-money making bitstream algos out there for the vcu1525..... that I can see. If/when monero forks. Our dev will have a look at it and see what it would take to write the new bitstream for it.
You suggest our rig will not be as valuable if C7 is forked. You do know that this is not a 4 card cryptonight only rig?...right? It will be able to hash almost all of them where it makes sense. The C7 algo is "OUR" first bitstream with more to follow.
  Yes, we are asking 25000 for a turn key ready to mine 4 card rig with all mods done. 

 "My guess is you saw the fork coming and want to move this out"

  Really? We just finished writing it and it is still being tested at this moment. We can't just go down to BITSTREAMS R US and buy any Algo we want. We are starting on a different algo next week and another one after that. Not to mention all the bitstreams that will be available from lots of other Devs. I guess I don't follow the logic on this. This Rig was not built to be a Cryptonight v7 only rig. The idea would be laughable.

So....Now that I have explained it. How many rigs can I put you down for brother!!!!

I asked for it to be moved to alt coins.

so  right now  cn7 is going to be forked  and in theory you gear will drop 4x of its speed.

you are asking 25000 for it.

my guess is you saw the fork coming and want to move this out asap.

Since it is the developers of monero that say they will hurt fpgas 4x  not me do you have a plan if this happens?

The actual devs explain it much better: https://github.com/monero-project/monero/pull/4218



" @SChernykh
  Contributor
SChernykh commented 24 days ago
New ASICs will also be many times slower because of the nature of these changes.
 @SChernykh
Fixed armv7 build

ed62058
@SChernykh
  Contributor
SChernykh commented 24 days ago
Well, that depends on ASIC implementation. We don't know for sure how their internals work. But according to a lot of scientific papers about hardware implementations of division and square root - yes, looks like 16x times slower."



and

"@MoneroCrusher
  
MoneroCrusher commented 23 days ago
So practically & effectively this makes FPGAs 4x slower, making them much worse in terms of $/hash (see Xilinx FPGA, 22 kH/s CN7 for 4-5k$) than GPUs and ASICs 16x slower still being better than GPUs in terms of production cost/hash but they'll be useless within a couple months and not break even.

So this makes GPUs & CPUs the best thing to mine with, if Monero keeps the strict 6 months fork schedule.
Is this correct?
 @SChernykh
  Contributor
SChernykh commented 23 days ago
Yes, it's correct. At least 4 times slowdown compared to Cryptonight v1 for all kinds of ASIC/FPGA."




Me below

so even if  asics are made they will be 16x slower

and fpga's once programmed will be 4x slower

these are the actual developers words not mine

So if they are correct

monero  should have legs here  it could be your gear loses a ton of value.


this was lifted from my alt coin thread.

https://bitcointalksearch.org/topic/m.44771016

Hello, wasnt move by us.

Why are you advertising an altcoin mining rig in the BITCOIN section of the forum?

What are all the coins could be mined in this and what is the profit ratio?
Price?
Can we import to India?
any specific things need to be tell us?

FPGA VCU1525 Mining / NR1525M

Discover the fastest and most power efficient card mining in the planet, meet NR1525M blockchain edition is powered by the Xilinx VU9P. This version of the board contains modifications and alterations making it superior for mining crypto currencies mining.

FPGA MINING RIG NR104

Custom FPGA Mining Rig, designed and modified by NocRoom. NR104 FPGA Mining Rig with 4 FPGA NR1525M is fine tuned for datacenter environments from OS tuned, cooling modifications and card undervolted, includes everything you need to rack, turn on and start mining without any worry – fully turnkey fpga mining rig. All systems have been stress-tested and are extremely stable, system includes an 1 year warranty.

** Hosting option are available, upon order **


NR104 v3