FPGA!!!

[Wilson]

Hey!
Bulk ordering FPGAs! PM me if interested!
ASAP!
Orders accepted with in 48hrs of this post!
 [Moderator note: Do your own research before buying. He's selling x2 Spartan boards (Lancelots), which only can do 400~MH/s. The 1GH/s comes from a CGMiner display bug]
Cheers,
Wilson

[Moderator note 2: Kano, one of the CGMiner dev has confirmed that this is never gonna work]

I am confident as i have gotten the result! Not forcing anyone to buy!
You may pm me if you are interested!
This post will be out in next 24hrs!

Out in next 24hrs? You mean your gonna run with the money in 24hrs never to be seen again?

Right, so you either fudged the figures or didn't wait for the numbers to settle.
The run time shown is 2 minutes so the numbers mean NOTHING.

You cannot get 1GH/s out of a any pair of Spartans I have seen anywhere.
500MH/s is possible, 1000 is SCAM.

I wrote the software in the screen grab and I know how it works.
... looks like it's time to go visit that other thread also ...

[Benson Samuel]

Hey!
Bulk ordering FPGAs! PM me if interested!
ASAP!
Orders accepted with in 48hrs of this post!

Cheers,
Wilson

How much and what hashrate?

[Wilson]

Its approx 4btc @ 1ghash! Delivery within 20 days at the max!
Will return the change if i am left with any.
After 3 months, your boards can be upgraded!

[rezurect]

Its approx 4btc @ 1ghash! Delivery within 20 days at the max!
Will return the change if i am left with any.
After 3 months, your boards can be upgraded!

Name of the Product?
No of the Chips onboard?
FPGA upgrade to what?
Nothing?

[Dashing]

Its approx 4btc @ 1ghash! Delivery within 20 days at the max!
Will return the change if i am left with any.
After 3 months, your boards can be upgraded!

Name of the Product?
No of the Chips onboard?
FPGA upgrade to what?
Nothing?

HI,
I had spoken to Wilson earlier today,

2 x Spartan6 FPGA
2 chips

FPGA -> ASIC or QuadFPGA (4 months or so)

Also, another thing about these boards you have to keep in mind is,
1. The hashrate reported on cgminer will be 400 Mhash unless you upgrade the firmware which fixes it to 1 Ghash, this is ONLY A DISPLAY / HASHRATE CALC error as cgminer estimates the hashrate and nothing else, the miner will submit about 6 - 7 shares per minute


Estimated time currently needed to reach 0.01 BTC ($1.35)    --> 844 Minutes(s)
Estimated time currently needed to reach 1 BTC ($134.75)   --> 55 Day(s)

[Dashing]

another important thing Wilson mentioned is that,
these boards can be resold easily as they are FPGA (can be reprogrammed for other things unlike ASIC) and will be profitable for a long time with 24 watts power usage

[rezurect]

Product name?
Lancelot?

[Dashing]

Product name?
Lancelot?

not sure about that, btw how is your 150 ghash ASICminer ? I herd about that from someone..

[rezurect]

At least an hour.
The speed is of course an estimate, the A over a day or 2 will tell you if it is accurate.
However, 3 HW with 12 A is pretty bad too (20%)

Apart from bogus speeds reported by cgminer (900Megahashes), it actually started yielding better results... It had quite a lot of dropped packets but more accepted packages than the other devices.

Code:

--------------------------------------------------------------------------------
 [P]ool management [S]ettings [D]isplay options [Q]uit
 ICA 0:                | 529.1M/760.8Mh/s | A:58 R:0 HW: 4 U: 2.11/m
 ICA 1:                | 436.6M/425.9Mh/s | A:53 R:0 HW: 2 U: 1.93/m
 ICA 2:                | 391.7M/394.7Mh/s | A:50 R:0 HW: 0 U: 1.82/m
 ICA 3:                | 979.8M/1.001Gh/s | A:70 R:0 HW:14 U: 2.55/m
 ICA 4:                | 398.1M/411.5Mh/s | A:55 R:0 HW: 2 U: 2.00/m
--------------------------------------------------------------------------------

Guess which one is running v42 firmware ?

However, if you look at the HW errors, it is indeed very high - almost 17%
I'd think that might mean it might shorten it's life?

Is there a way to clock that firmware down a little to get that HW number a lot lower?

Also the incorrect MH/s could be directly related to the firmware - the standard Icarus firmware divides the work in 2 on 2 FPGAs and runs at a constant MHz
I'm of course assuming that's what the standard Lancelot firmware does also and it seems to match that by reporting the MH/s correctly.
Do you know what that firmware does (and also do you have details about how to upload it? I have a jTag cable also that I have never used ...)

So if its a Lancelot its a 400 Mhps FPGA, after the firmware update.

[Dashing]

If its a Lancelot made by blackarrow,
Blackarrow did offer an upgrade, if he started selling ASICs.
1Ghps is a cgminer display error according to the designer.

Apart from bogus speeds reported by cgminer (900Megahashes), it actually started yielding better results... It had quite a lot of dropped packets but more accepted packages than the other devices.

Guess which one is running v42 firmware ?

So if its a Lancelot its a 400 Mhps FPGA, after the firmware update.

not really, once you upgrade the firmware it submits more shares, but a few are stale, but if you're mining on a PPS pool that wont matter, also you can see blackarrows posts towards the end, he also proves that the hash rate reported matches the number of shares sent per minute

the best thing about this deal is the shipping cost is toooo less, Wilson has worked out a very good deal for the boards and is offering free power supply and is offering a legit deal, I have spoken to him for over an hour today and I have already bought 4 through him.

[rezurect]

Good deal, yes
but 1ghps ,no
The utility U and WorkUtility  WU in cgminer tells the truth, thats why blackarrow is selling it as a 400Mhps FPGA.

https://bitcointalk.org/index.php?topic=187549.0

Hello everybody!

My company, Black Arrow Software http://www.blackarrowsoftware.com, has just started manufacturing Lancelot FPGAs - aprox 400Mhash/sec, using 26.5 Watt

The Lancelot device was developed by ngzhang. Details in this thread: https://bitcointalk.org/index.php?topic=79835.0

You can purchase it from our reseller's website: http://www.cardreaderfactory.com/shop/lancelot.html

Price: $350 / pcs. Discounts available for more than 10 pcs.

Power supply (ordered separately):
1. This power supply: https://www.cardreaderfactory.com/shop/ac-dc-power-adapter-12v-10a.html can power 4 Lancelot at the same time
2. This power splitter: https://www.cardreaderfactory.com/shop/atx-to-lancelot-power-adapter.html and 600 Watt PSU (purchased separately: example http://www.amazon.co.uk/Corsair-Builder-Series-Bronze-Supply/dp/B009RMP44O/ref=sr_1_3?ie=UTF8&qid=1367521289&sr=8-3&keywords=600watt+psu) can power up 20 x Lancelot

06/05/2013: Device update:
We've replaced the huge fans which were generating a lot of noise with smaller fans that are very silent.

22/05/2013: Stock update:
1st batch shipped on 4th of May (small batch)
2nd batch shipped on 13th of May (medium batch)
--->3rd batch starts shipping on 27th of May (medium batch)
4th batch ships on 10th of June (small batch)
5th batch ships on 27th of June (large batch, should clear all queue)
6th batch ships on 17th of July (large batch, includes group manufacturing orders)

22/05/2013: User manual
Download from here: https://www.cardreaderfactory.com/download/documentation/lancelot%20user%20manual.pdf

02/05/2013: Shipping fee
Contrary to what our website says, shipping will not be $70!
It can be cheaper: As many of you have noticed, we have credited your account with us for the shipping difference (if we managed to get the shipping fee lower than $70). We can refund the shipping difference in bitcoins or you can use it for your next order.
Or it can be more expensive: If your package is heavy, we will ask you to pay the difference.

Payment: We accept Bitcoin, Bitcoin Escrow, Western Union and Bank Transfer.
If you haven't placed your order yet, please do so online and do _not_ pay for it. We will send you a payment reminder as soon as your order is in stock.

Bitcoin exchange rate:
When you place your order, please tell us what is the rate that you want to exchange your Bitcoins for. We will submit your transaction in MtGox as advised. If it gets executed, we will consider your payment complete and ship your order. If it doesn't get executed (example: Bitcoin value is lower) we will postpone shipping your order and, if requested, we can issue a refund with the same amount of Bitcoins that you've paid and cancel your order.
Note: In Mt. Gox we will submit your requested rate + 1% 1.5% so we can recover Mt. Gox's exchange fee and bank transfer fee.

Shipping: We are based in Shenzhen, local pickup available. We can also ship worldwide with DHL, UPS and EMS. Shipping price depends on the destination and package weight. Our website is configured to charge $70 flat fee but we'll update this as soon as we hear back from DHL/UPS.

30/04/2013: Performance update:
Due to limited availability of -3N  and -3 xilinx FPGA we will be using -2 chips too. We have tested them and have no impact in the performance of the boards (see picture below). If you really want -3 chips do let us know and we'll hold your order until we manage to get some -3 chips.



Our lancelot without the cooler:



Fan is included. At the moment is quite big and we're looking into how improve this.

The default firmware is running at 200mhz.

The power consumption is 26.5 Watt / device.





Regards!

[Dashing]

Good deal, yes
but 1ghps ,no
The utility U and WorkUtility  WU in cgminer tells the truth, thats why blackarrow is selling it as a 400Mhps FPGA.

https://bitcointalk.org/index.php?topic=187549.0

Hello everybody!
.....................
.........

Err,
need to quote whole post = NO
 I dont know why his boards are submitting so less per minute, anyways,

Let me show you my screenshot if that helps you understand,


HAVE A LOOK AT THE NUMBER OF SHARES GETTING SUBMITTED PER MINUTE

[Dashing]

Here, another screenshot,

[Wilson]

That's true!
The new one is just going amazing!
There are a lot of orders!
Lemme know if you were interested!
You got your proof from Dashing!
He himself has ordered a bulk from me!
So...

[rezurect]

Higher accepts true, (slightly higher HW errors).
Keep it running for days for the U values to converge,
According to Kano, A cgminer developer:

kano,

It may sound stupid but i am little bit confused of values i see. As you noted with new bitstream and timing 2:70 Mhs reporting will not be correct. To make things easy, assuming that cgminer shows  correct values for my gpu as follows:

MHS av   MHS 3s   Accepted   Hardware Errors Utility   
 391.03   391.16   6,129                    0       5.55/m

For my best lancelot board values are as follows:
MHS av   MHS 3s   Accepted   Hardware Errors        Utility   
506.35   662.20   6,651             131                  6.02

What about calculating Lancelot performance in following way
Lancelot Utility/GPU Utility*GPU MHS av
 6.02/5.55*391.03 = 424 Mhs

What about HW errors - are they taken into account when calculating utility. In my case for Lancelot they are 1.97% (131/6,651*100). Shall i do something like:
424/100*98.03=415.64

Thanks

MHS of course will be wrong:
Every time work is aborted (no nonce found before timeout, or an LP occurs) it has to determine how many hashes were done.
The Hs value is used to calculate that
Every time it finds a share ... it knows how many hashes were done since the share value tells that.

However, the number of shares Accepted, Rejected, Stale, HW, U, pretty much everything else is correct.

Yes you can estimate your hash rate from U - but you'd have to run for a few days to ensure it's close.
Even after a few hours it can (rarely) be out by 10% (which is a lot)

anyway yep Hashes/s is simply (2^32) * U/60 (for 1 diff shares)

U is only accepted shares.

A, R, SS and HW are all independent.

To work out the HW % = HW / (A + R + SS + HW)

Some improvement over 400 Mhps in reality.

If you still think its 1Ghps , i humbly submit.

[Dashing]

Higher accepts true, (slightly higher HW errors).
Keep it running for days for the U values to converge,
According to Kano, A cgminer developer:

kano,

It may sound stupid but i am little bit confused of values i see. As you noted with new bitstream and timing 2:70 Mhs reporting will not be correct. To make things easy, assuming that cgminer shows  correct values for my gpu as follows:

MHS av   MHS 3s   Accepted   Hardware Errors Utility   
 391.03   391.16   6,129                    0       5.55/m

For my best lancelot board values are as follows:
MHS av   MHS 3s   Accepted   Hardware Errors        Utility   
506.35   662.20   6,651             131                  6.02

What about calculating Lancelot performance in following way
Lancelot Utility/GPU Utility*GPU MHS av
 6.02/5.55*391.03 = 424 Mhs

What about HW errors - are they taken into account when calculating utility. In my case for Lancelot they are 1.97% (131/6,651*100). Shall i do something like:
424/100*98.03=415.64

Thanks

MHS of course will be wrong:
Every time work is aborted (no nonce found before timeout, or an LP occurs) it has to determine how many hashes were done.
The Hs value is used to calculate that
Every time it finds a share ... it knows how many hashes were done since the share value tells that.

However, the number of shares Accepted, Rejected, Stale, HW, U, pretty much everything else is correct.

Yes you can estimate your hash rate from U - but you'd have to run for a few days to ensure it's close.
Even after a few hours it can (rarely) be out by 10% (which is a lot)

anyway yep Hashes/s is simply (2^32) * U/60 (for 1 diff shares)

U is only accepted shares.

A, R, SS and HW are all independent.

To work out the HW % = HW / (A + R + SS + HW)

Some improvement over 400 Mhps in reality.

If you still think its 1Ghps , i humbly submit.

use --timing-short for better hash rate values and more share submissions (more Accepted), thats what I used on my boards, first 2 boards use the latest firmware, i could not update the rest as I had to return the cable to my friend (he's doing some professional FPGA work)

anyways, what I personally care is the ROI and this board ROI is 3 and half months, which is pretty good
already recovered around 5% of my investment in 1 and a half weeks.

I'd really suggest going with Wilson as he got me a very good deal, he also got me free power adapter (worth $20) and shipping also was free  (worth $70)

[Wilson]

Seriously! Why don't you buy one from me and see it for yourself rather than arguing based on some old posts!
I can help you with the setup and run it!


Cheers,
Wilson

[rezurect]

already recovered around 5% of my investment in 1 and a half weeks.

You guys still dont get it,its a cgminer reporting error.Thats why black arrow is selling it as a 400Mhps FPGA.
Whats the firmware version yo're running?
Youre punching in what cgminer is reporting into a Calc to get 3.5 months,lets look at what youve got.

According to your results 5%ROI in 1.5 weeks,(ie,  5%*20=100% ROI : 1.5 weeks*20 = 30 weeks=7.5 months)
ie, ROI is 7.5 months @ current difficulty.(In reality considering Diff jumps its >7.5months)
1Ghps gives  around 4 months ROI not 7.5 months

Wilson: I'm not arguing that the deal is bad.

edit: According to the cgminer dev its a firmware reporting error.

Regarding v42
So ... I had a look at the github and indeed it does dynamically adjust the MHz clock
So --icarus-timing will not fare well with that.
(as I mentioned it expects a constant MHz)

Since it can't even know what the MHz is it would be better to instead use a clock figure slower than it's slowest speed and a abort time of around 100 to ensure it's under the speed it always runs at.
So something like:
--icarus-timing 2.5=100
It will show the MH/s incorrectly, but it will still hash at the highest rate it can.

Anyone know if you can get more information out of the Lancelot other than just send it work and wait for the reply?
I guess once I've finished the code - (almost done but haven't had a lot of time today to do that last bit: sort out the chip initialisation) - I'll look at the github and see if there are other commands you can send to it ...
The random unknown MHz is actually problematic

[Wilson]

To be frank, ROI is not more than 4 and half months.
And you will have the option to upgrade to the latest at the end of 3 months
or
You have the option to sell your board to some companies which are desperate for FPGAs.
I can help you with that also.
Once you sell it, you get your ROI and the mined amount becomes your profit!

[Dashing]

already recovered around 5% of my investment in 1 and a half weeks.

You guys still dont get it, its a cgminer reporting error.Thats why black arrow is selling it as a 400Mhps FPGA.
Whats the firmware version yore running?

According to your results 5%ROI in 1.5 weeks,(ie,  5%*20=100% ROI : 1.5 weeks*20 = 30 weeks=7.5 months)
ie, ROI is 7.5 months @ current difficulty.(In reality considering Diff jumps its >7.5months)
1Ghps gives  3.5 months ROI not 7.5 months

Wilson: I'm not arguing that the deal is bad.

that calculation applies if I have only 1 Board, I have 5, and 5% investment recovered is my ROI over 5 boards

Anyways, This is a good enough deal for me irrespective of whats going around (calculations, etc etc), I am rather happy to trade with an indian than buy that ASICminer blade as in a few months the blade will be useless when BFL starts to mass produce the Jalapenos,

Simple calc,
50 BTC = 10 Ghash (Blade)
4 BTC = 5 Ghash (Jalapeno)

I'm more than happy to wait, as my ROI will be quicker than the ROI for the 50 BTC board, this 5 FPGA is a initial investment until my Jalapeno comes, then I will sell these and buy more Jalapenos, its a Win / Win situation for me