Bitcoin Forum

Local => Marketplace (India) => Topic started by: Wilson on May 26, 2013, 08:19:59 AM



Title: FPGA!!!
Post by: Wilson on May 26, 2013, 08:19:59 AM
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 ...


Title: Re: FPGA!!!
Post by: Benson Samuel on May 26, 2013, 08:47:02 AM
Hey!
Bulk ordering FPGAs! PM me if interested!
ASAP!
Orders accepted with in 48hrs of this post!

Cheers,
Wilson

How much and what hashrate?


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 10:49:00 AM
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!


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 11:32:13 AM
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?


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 01:18:26 PM
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)


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 01:19:58 PM
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


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 01:21:18 PM
Product name?
Lancelot?


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 01:42:01 PM
Product name?
Lancelot?

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


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 02:01:46 PM
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.


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 02:13:29 PM
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.


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 02:22:45 PM
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 (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 (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 (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 (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 (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.

http://www.blackarrowsoftware.com/images/cgimer-36-lancelot-2.png

Our lancelot without the cooler:

http://www.blackarrowsoftware.com/images/lancelot-3.jpg

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.

http://www.blackarrowsoftware.com/images/lancelot-6.jpg
http://www.blackarrowsoftware.com/images/lancelot-4.jpg
http://www.blackarrowsoftware.com/images/fpga-mini-rig.jpg

Regards!


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 02:29:57 PM
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,
https://i.imgur.com/1Rmtq9I.png

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


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 02:33:36 PM
Here, another screenshot,

https://i.imgur.com/YWZVzna.png


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 02:43:09 PM
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...


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 03:27:09 PM
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.


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 03:39:07 PM
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 :P
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) :D


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 03:52:10 PM
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


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 03:56:39 PM
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 :(


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 04:21:48 PM
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!


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 04:28:39 PM
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 :D


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 04:31:01 PM
Tell me soon if you need one!
Btw your previous quote was 6months old and the other was a month ago!
A lot can happen in a day you know! And this is launched max a week back!


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 04:44:44 PM
that calculation applies if I have only 1 Board, I have 5, and 5% investment recovered is my ROI over 5 boards
Its percentages, Its the same if you have any number of boards.



Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 04:50:50 PM
that calculation applies if I have only 1 Board, I have 5, and 5% investment recovered is my ROI over 5 boards
Its percentages, Its the same if you have any number of boards.



not really, your calculation was based on if 1 board was 1 Ghash, while only 2 of mine report that, its natural that the other boards pull down the %

its like marks at school/college,

for eg,
you get,
100 in 2 subjects and 40 in the rest subjects

your average naturally gets pulled down


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 04:55:09 PM
anyways, my plan is set, mine how much ever possible with these boards and then sell and buy Jalapenos once they're out, and anyways, 26 watts power usage per board will not affect me in anyway, it's lesser than running a light bulb and a bit more than a CFL bulb ;)

I save much more mining with these than my GPUs

EDIT:
consider this as "stepping" stone hardware, mine with them to save on power bill and still get $$ and sell them later on and buy a ASIC, as if not for BTC mining, the FPGA can be used for a variety of other things hence the reason they can be resold easily


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 04:59:34 PM
may be somebody discovered a way to run 1 FPGA chip @ 500 Mhps(Since two chips give 1Ghps).



Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 05:02:47 PM
may be somebody discovered a way to run 1 FPGA chip @ 500 Mhps(Since two chips give 1Ghps).


it is possible, there is 1 FPGA chip which runs at 600 Mhash/sec (600 Mhz freq) but the issue is getting those chips :/ they are very very expensive if bought in small quandities, only more than 10,000 orders get good quotes for those chips, hence the reason why we have to adjust with these chips until we get cheaper ASICs out


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 05:03:32 PM
and also it depends on the speed grade of the chip, different grades give different speeds and different number of stales and less/more heat


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 05:25:00 PM
Its higher than 400 Mhps in total , how much i dont know?
Wilson: Post a pic without the fan , top view  close up.

edit:
Black arrow suggests a Lancelot reaches a total of 500Mhps on May 17,
I think that with v42 firmware Lancelot reaches 500Mega hases. I haven't looked at your code but I think that based on the proof of work you should be able to accurately calculate the speed. You should not rely on how fast the device returns data but on what date it is actually returning.
Regards!
I have no idea if he made a newer version after May 17, He hasn't posted it.


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 05:26:51 PM
Sorry! All mine are customized! And i can't reveal them!
May be yea! I can of my sample piece!


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 05:30:44 PM
I know he hasn't posted it! That is the reason you will get it soon!
Else we ll have to wait!


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 05:38:55 PM
Customised FPGA.
1 Avalon ASIC chip hashes at 382Mhps, while 1 FPGA chip hashes at 500 Mhps?


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 05:41:47 PM
https://i.imgur.com/UX4SlHp.jpg


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 05:42:59 PM
It is running so i am not removing the fan and clicking a pic!


Title: Re: FPGA!!!
Post by: Wilson on May 26, 2013, 05:52:09 PM
I have sent you a pic and dashing himself has updated you with the screenshot and information!
So i am not going to convince you any more!
Just let me know if you want to buy it!
I can't do more than that!


Title: Re: FPGA!!!
Post by: Pinwheel on May 26, 2013, 06:02:26 PM
maybe I'm missing somethgin, but on their web site http://www.cardreaderfactory.com/shop/lancelot.html
it is Speed: 400 Megahashes/sec.

so it s 300 usd  for Speed: 400 Megahashes/sec  only make sense if you buy 2-3 boards to keep it a toys, or much better revers engineer is produce locally.

price wise compared to ASICminer blades it is no good buy. to match one ASIC blade you need  32 Lancelot 300X32 = 9600 usd
ASICminer blade cost 50btc =  6500 usd, and no wait at all.

unless is there some official confirmation of 1ghs rate.


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 06:19:57 PM
maybe I'm missing somethgin, but on their web site http://www.cardreaderfactory.com/shop/lancelot.html
it is Speed: 400 Megahashes/sec.

so it s 300 usd  for Speed: 400 Megahashes/sec  only make sense if you buy 2-3 boards to keep it a toys, or much better revers engineer is produce locally.

price wise compared to ASICminer blades it is no good buy. to match one ASIC blade you need  32 Lancelot 300X32 = 9600 usd
ASICminer blade cost 50btc =  6500 usd, and no wait at all.

unless is there some official confirmation of 1ghs rate.


consider this as "stepping" stone hardware, mine with them to save on power bill and still get $$ and sell them later on and buy a ASIC, as if not for BTC mining, the FPGA can be used for a variety of other things hence the reason they can be resold easily



Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 06:20:18 PM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.

Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 06:25:36 PM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.
An easy verification would be from the Web UI of the pool,(btcguild or slush some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.

Again,
If this is directed towards me, I really don't care, I needed the FPGA, Wilson got it for me, I can see the difference in number of shares going per minute from the upgraded board and the other boards

and again,
consider this as "stepping" stone hardware, mine with them to save on power bill and still get $$ and sell them later on and buy a ASIC, as if not for BTC mining, the FPGA can be used for a variety of other things hence the reason they can be resold easily


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 06:28:12 PM
Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.


WRONG ! the WebUI of a POOL WILL NEVER know your actual hashrate !!!! IT'S A ESTIMATED NUMBER ! even if you mine for a few hours, a sudden influx of shares will spike your hash rate ! So that is completely unreliable way to judge !


Title: Re: FPGA!!!
Post by: rezurect on May 26, 2013, 06:30:50 PM
true true,

since im saying its a firmware reporting error,hence cgminer is erring, other than a web UI i cant figure out how to look at the speed.
The formula works,after the U values converge in cgminer, but i dont think youll want to waste your time doing that,

Its not perfect ,I know it has errors, but i see no other ways to look at speed, the longer you run the miner the more accurate it usually gets, it averages out over time usually.
just help us verify speed if you can via a screenshot of a pool Dashboard after running a few hours, with shares accepted, else it would be skewed due to time.


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 06:36:41 PM
true true,
Its not perfect atleast somewhat near,
just help us verify speed if you can via a screenshot of a pool Dashboard after running a few hours, with shares accepted, else it would be skewed due to time.

I don't mine on 1 pool, and that's been my strategy for long long time
I use the "load balance" option in CGminer to spread my hash rate around for many reasons,

1.
I mine on EclipseMC PPS, as you can withdraw balance anytime (no minimum amount)

2.
I mine on Ozcoin DGM, DGM = stable income

3.
I mine on BTCGuild PPLNS = shorter rounds = more $

4.
I mine on Slush pool = score based, high score = more $

and yeah, I dont' have the time to switch everything around to 1 pool just to prove a fact, the FPGAs are all connected to my RPi in my balcony in a case being cooled by natural cooling :)

I'm out of this topic as it seems to be going round and round again and again, and good luck finding something to mine with until much much cheaper and VIABLE ASICs come out




Title: Re: FPGA!!!
Post by: Pinwheel on May 26, 2013, 07:05:32 PM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.

Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.

pool's reporting hash rate is not accurate. I run one blades for a day on btcguild and it reported 16 ghs which cannot be true.

they changed fan on smaller one, so with 1 ghs this board will melt down. As there is no official confirmation of 1ghs this thread is BS.


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 07:30:06 PM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.

Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.

pool's reporting hash rate is not accurate. I run one blades for a day on btcguild and it reported 16 ghs which cannot be true.

they changed fan on smaller one, so with 1 ghs this board will melt down. As there is no official confirmation of 1ghs this thread is BS.

I'll be really honest, I have no idea man, cgminer reports 1 Ghash and gives good shares per minute too,
https://i.imgur.com/YWZVzna.png

But yeah, I don't feel scammed in anyway, as Wilson never promised me 1 Ghash, he promised me cheap FPGAs and I got them  :P So I wouldn't call this a complete BS, as really even cgminer is just estimating against the number of shares sent per minute as cgminer cannot get the actual rate from the FPGA (this is a verified claim)


Title: Re: FPGA!!!
Post by: Pinwheel on May 26, 2013, 07:52:53 PM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.

Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.

pool's reporting hash rate is not accurate. I run one blades for a day on btcguild and it reported 16 ghs which cannot be true.

they changed fan on smaller one, so with 1 ghs this board will melt down. As there is no official confirmation of 1ghs this thread is BS.

I'll be really honest, I have no idea man, cgminer reports 1 Ghash and gives good shares per minute too,
https://i.imgur.com/YWZVzna.png

But yeah, I don't feel scammed in anyway, as Wilson never promised me 1 Ghash, he promised me cheap FPGAs and I got them  :P So I wouldn't call this a complete BS, as really even cgminer is just estimating against the number of shares sent per minute as cgminer cannot get the actual rate from the FPGA (this is a verified claim)

congratulations!! that is good machine and you for sure will make a lot of money on long run. If I did not have ASICs I will buy 10. even if it gives 500mgh it is not bad at all.


Title: Re: FPGA!!!
Post by: Dashing on May 26, 2013, 07:56:46 PM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.

Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.

pool's reporting hash rate is not accurate. I run one blades for a day on btcguild and it reported 16 ghs which cannot be true.

they changed fan on smaller one, so with 1 ghs this board will melt down. As there is no official confirmation of 1ghs this thread is BS.

I'll be really honest, I have no idea man, cgminer reports 1 Ghash and gives good shares per minute too,
https://i.imgur.com/YWZVzna.png

But yeah, I don't feel scammed in anyway, as Wilson never promised me 1 Ghash, he promised me cheap FPGAs and I got them  :P So I wouldn't call this a complete BS, as really even cgminer is just estimating against the number of shares sent per minute as cgminer cannot get the actual rate from the FPGA (this is a verified claim)

congratulations!! that is good machine and you for sure will make a lot of money on long run. If I did not have ASICs I will buy 10. even if it gives 500mgh it is not bad at all.

heh i sense a tad of sarcasm there ;) anyways, I have a few ASICs too, waiting on them though ;)


Title: Re: FPGA!!!
Post by: kano on May 27, 2013, 01:09:25 AM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.

Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.

pool's reporting hash rate is not accurate. I run one blades for a day on btcguild and it reported 16 ghs which cannot be true.

they changed fan on smaller one, so with 1 ghs this board will melt down. As there is no official confirmation of 1ghs this thread is BS.

I'll be really honest, I have no idea man, cgminer reports 1 Ghash and gives good shares per minute too,
https://i.imgur.com/YWZVzna.png

But yeah, I don't feel scammed in anyway, as Wilson never promised me 1 Ghash, he promised me cheap FPGAs and I got them  :P So I wouldn't call this a complete BS, as really even cgminer is just estimating against the number of shares sent per minute as cgminer cannot get the actual rate from the FPGA (this is a verified claim)

congratulations!! that is good machine and you for sure will make a lot of money on long run. If I did not have ASICs I will buy 10. even if it gives 500mgh it is not bad at all.

heh i sense a tad of sarcasm there ;) anyways, I have a few ASICs too, waiting on them though ;)
It does 500MH/s
End of story - anyone thinking it does 1GH/s is being scammed by misrepresentation.

It's run time is 2 minutes so the MH/s numbers don't mean anything either.

You can fake the MH/s number up by giving the code the incorrect --icarus-timing or incorrect --icarus-options ... I know I wrote the code.

Edit: "verified claim" by who? That's bullshit. I wrote the damn code. I know what it does.
It counts the hashes done and estimates the hashes when it aborts work (that doesn't find a result or during an LP) based on the hash rate and the time when it aborts the work.
It's nothing to do with shares other than if a nonce is invalid after a hash validation, it will not count towards the MH/s work done (coz it is a hardware error)


Title: Re: FPGA!!!
Post by: Benson Samuel on May 27, 2013, 01:47:51 AM
Suddenly a single clarification champ appears in the wild!


Title: Re: FPGA!!!
Post by: Wilson on May 27, 2013, 01:55:33 AM
Lolz!
Just that he has bought a lot from me!
Its hard to convince people though you are right!
Proof is the most important to win the case! :P


Title: Re: FPGA!!!
Post by: Benson Samuel on May 27, 2013, 01:57:26 AM
Alright, just saw OP edits and will pass on my 1.5 c.

OP had not posted expected hashrate. I would assume that he added
Quote
Its approx 4btc @ 1ghash!
, after checking with his customer - Dashing.

Dashing is testing the equipment that he purchased and only vouching for what he can see, accompanied by screenshots. Seems very legit and Dashing's words show that he does honestly believe the hashrate he sees.

Kano's confirmation of the same overrides what Dashing's tests have proved, unless we are talking about some other FPGA which has been customized.

In this event, I would either request a demo unit to be sent to kano to test and send back.
Or, some actual specs that can be investigated by the community.


Title: Re: FPGA!!!
Post by: Pinwheel on May 27, 2013, 02:50:05 AM
According to Blackarrow, a hashrate improvement to 500Mhps came from the firmware version. ie v42
The v42 also causes a reporting error which causes the speed to be reported as 1Ghps.

Although not perfect: an easy verification would be from the Web UI of the pool which shows accepted share number and speed,(btcguild or some pools report approx speed based on shares accepted) but you have run it for a few hours in the pool.

pool's reporting hash rate is not accurate. I run one blades for a day on btcguild and it reported 16 ghs which cannot be true.

they changed fan on smaller one, so with 1 ghs this board will melt down. As there is no official confirmation of 1ghs this thread is BS.

I'll be really honest, I have no idea man, cgminer reports 1 Ghash and gives good shares per minute too,
https://i.imgur.com/YWZVzna.png

But yeah, I don't feel scammed in anyway, as Wilson never promised me 1 Ghash, he promised me cheap FPGAs and I got them  :P So I wouldn't call this a complete BS, as really even cgminer is just estimating against the number of shares sent per minute as cgminer cannot get the actual rate from the FPGA (this is a verified claim)

congratulations!! that is good machine and you for sure will make a lot of money on long run. If I did not have ASICs I will buy 10. even if it gives 500mgh it is not bad at all.

heh i sense a tad of sarcasm there ;) anyways, I have a few ASICs too, waiting on them though ;)

sorry if you see it in that way, I really not mean any sarcasm. Why would I, it is good product and price is fair.


Title: Re: FPGA!!!
Post by: Wilson on May 27, 2013, 04:29:41 AM
See...
I am not forcing anyone to buy this! I am tiered of convincing people. Those who believe may! No competition...
I have posted what i have seen.
I am not going to convince any more people!
I have made this post based on Dashing's miner performance! And what i saw was each board was at 998mhash and 1.02ghash. Avg of 994mhash. I think that's good enough and worth, as the shipping is within 20 days.
Atleast we all know that we as going to get a minimum of 800mhash each board as they 2X chips are used!
So you order 10 of them, you can be sure of getting a minimum of 9ghash as Kano said but according to Dashing, you will actually be getting the other 1ghash too!
I posted what i saw! Sounded pretty good as FPGAs can be resold once they get outdated unlike the ASICs as they are application specific!
So its up to you guyz to decide to buy or not to. I have already received a bulk order.
Anyone still interested, just PM me!


Cheers,
Wilson


Title: Re: FPGA!!!
Post by: rezurect on May 27, 2013, 05:08:59 AM
Atleast we all know that we as going to get a minimum of 800mhash each board as they 2X chips are used!

For Wilson^^ who is still maintaining its 800Mhps. Its a 500Mhps max perboard (250 per chip)
Again,
It does 500MH/s
End of story - anyone thinking it does 1GH/s is being scammed by misrepresentation.
It's run time is 2 minutes so the MH/s numbers don't mean anything either.
You can fake the MH/s number up by giving the code the incorrect --icarus-timing or incorrect --icarus-options ... I know I wrote the code.

I told them politely to run it for hours, instead of putting it straight in their face, they don't take heed. They needed the dev to come here personally and say it right in their face that's its a "fudged" figure, to make them understand.


Oh, and before I forget - you can get them in bulk at $260 each.  ::)

I wonder what brought Kano here  ;D


Title: Re: FPGA!!!
Post by: Wilson on May 27, 2013, 05:19:47 AM
Lolz! I myself am wondering...   :P


Title: Re: FPGA!!!
Post by: Benson Samuel on May 27, 2013, 05:20:27 AM
Quote
I wonder what brought Kano here  

Check the OP. One of the Global Moderators added an edit and might have pinged Kano.


Title: Re: FPGA!!!
Post by: rezurect on May 27, 2013, 05:22:54 AM
or somebody could have posted it on the Lancelot main thread calling for Kanos attention, you know somebody


Title: Re: FPGA!!!
Post by: Benson Samuel on May 27, 2013, 05:29:27 AM
or somebody could have posted it on the Lancelot main thread calling for Kanos attention, you know somebody

Hahahah, just saw that.


Title: Re: FPGA!!!
Post by: Dashing on May 27, 2013, 05:42:27 AM
Alright, just saw OP edits and will pass on my 1.5 c.

OP had not posted expected hashrate. I would assume that he added
Quote
Its approx 4btc @ 1ghash!
, after checking with his customer - Dashing.

Dashing is testing the equipment that he purchased and only vouching for what he can see, accompanied by screenshots. Seems very legit and Dashing's words show that he does honestly believe the hashrate he sees.

Kano's confirmation of the same overrides what Dashing's tests have proved, unless we are talking about some other FPGA which has been customized.

In this event, I would either request a demo unit to be sent to kano to test and send back.
Or, some actual specs that can be investigated by the community.

Hmm, i think this is what might have happened :/ I got the boards from Wilson (he never promised me 1 Ghash) and then was surprised to see the hash rate on the first 2 boards and told him about the hashrate, hence the reason why he probably offered it at 1 ghash

I never fudged/played with any stats,
I just use --ircrus-timing short as usual and nothing else, I don't know why its reporting that, i'll probably recompile cgminer agian from git :)


Title: Re: FPGA!!!
Post by: Benson Samuel on May 27, 2013, 05:45:41 AM
Quote
Hmm, i think this is what might have happened :/ I got the boards from Wilson (he never promised me 1 Ghash) and then was surprised to see the hash rate on the first 2 boards and told him about the hashrate, hence the reason why he probably offered it at 1 ghash

I never fudged/played with any stats,
I just use --ircrus-timing short as usual and nothing else, I don't know why its reporting that, i'll probably recompile cgminer agian from git

Exactly what i thought too :p

Wilson: May be good if you could add this to the posts and clear it up.


Title: Re: FPGA!!!
Post by: Dashing on May 27, 2013, 05:46:46 AM
Quote
Hmm, i think this is what might have happened :/ I got the boards from Wilson (he never promised me 1 Ghash) and then was surprised to see the hash rate on the first 2 boards and told him about the hashrate, hence the reason why he probably offered it at 1 ghash

I never fudged/played with any stats,
I just use --ircrus-timing short as usual and nothing else, I don't know why its reporting that, i'll probably recompile cgminer agian from git

Exactly what i thought too :p

Wilson: May be good if you could add this to the posts and clear it up.


Yep, looks like this stupid confusion around caused a lot of trouble for Wilson :/


Title: Re: FPGA!!!
Post by: rezurect on May 27, 2013, 05:52:59 AM
I did tell you guys about results being "skewed by time".
No matter how many times you recompile cgminer, the error will stay till the devs fix it in a new version.


Title: Re: FPGA!!!
Post by: Dashing on May 27, 2013, 05:55:05 AM
I did tell you guys about results being "skewed by time".
No matter how many times you recompile cgminer, the error will stay till the devs fix it.

I don't recall that, you kept asking for proof on top of proof for the miners, anyways I may have missed that in last nights shit storm


Title: Re: FPGA!!!
Post by: rezurect on May 27, 2013, 06:04:34 AM
Proof on top of proof because i was saying that your proof of cgminer is a reporting error. Hence you need something else to prove it.
U value converges = Run for hours , you dint have time apparently.
I say the pool results could be skewed due to time, the same apples for cgminer.
since im saying its a firmware reporting error,hence cgminer is erring, other than a web UI i cant figure out how to look at the speed.
The formula works,after the U values converge in cgminer, but i dont think youll want to waste your time doing that,

Its not perfect ,I know it has errors, but i see no other ways to look at speed, the longer you run the miner the more accurate it usually gets, it averages out over time usually.
just help us verify speed if you can via a screenshot of a pool Dashboard after running a few hours, with shares accepted, else it would be skewed due to time.


Title: Re: FPGA!!!
Post by: Dashing on May 27, 2013, 06:10:45 AM
Proof on top of proof because i was saying that your proof of cgminer is a reporting error. Hence you need something else to prove it.
U value converges = Run for hours , you dint have time apparently.
I say the pool results could be skewed due to time, the same apples for cgminer.
since im saying its a firmware reporting error,hence cgminer is erring, other than a web UI i cant figure out how to look at the speed.
The formula works,after the U values converge in cgminer, but i dont think youll want to waste your time doing that,

Its not perfect ,I know it has errors, but i see no other ways to look at speed, the longer you run the miner the more accurate it usually gets, it averages out over time usually.
just help us verify speed if you can via a screenshot of a pool Dashboard after running a few hours, with shares accepted, else it would be skewed due to time.

Err, I have these boards running for over a week now :/

anyways, matter is solved, its a display bug.


Title: Re: FPGA!!!
Post by: Dashing on May 27, 2013, 06:11:45 AM
@rezurect : oh just remembered, you missed my question earlier, did you get your 150 Ghash ASICminer which you were offering to Wilson??


Title: Re: FPGA!!!
Post by: rezurect on May 27, 2013, 06:15:20 AM
wait nd watch


Title: Re: FPGA!!!
Post by: Dashing on May 27, 2013, 06:16:11 AM
wait nd watch

Sure, will do ;)


Title: Re: FPGA!!!
Post by: Wilson on May 27, 2013, 06:21:42 AM
I am blank!  :P


Title: Re: FPGA!!!
Post by: Bicknellski on May 27, 2013, 09:01:53 AM
See...
I am not forcing anyone to buy this! I am tiered of convincing people. Those who believe may! No competition...
I have posted what i have seen.
I am not going to convince any more people!
I have made this post based on Dashing's miner performance! And what i saw was each board was at 998mhash and 1.02ghash. Avg of 994mhash. I think that's good enough and worth, as the shipping is within 20 days.
Atleast we all know that we as going to get a minimum of 800mhash each board as they 2X chips are used!
So you order 10 of them, you can be sure of getting a minimum of 9ghash as Kano said but according to Dashing, you will actually be getting the other 1ghash too!
I posted what i saw! Sounded pretty good as FPGAs can be resold once they get outdated unlike the ASICs as they are application specific!
So its up to you guyz to decide to buy or not to. I have already received a bulk order.
Anyone still interested, just PM me!


Cheers,
Wilson

Show us the bitcoin you received.

Better yet throw it up on a P2Pool and let us all know what address ya?


Title: Re: FPGA!!!
Post by: kano on May 27, 2013, 09:18:08 AM
See...
I am not forcing anyone to buy this! I am tiered of convincing people. Those who believe may! No competition...
I have posted what i have seen.
I am not going to convince any more people!
I have made this post based on Dashing's miner performance! And what i saw was each board was at 998mhash and 1.02ghash. Avg of 994mhash. I think that's good enough and worth, as the shipping is within 20 days.
Atleast we all know that we as going to get a minimum of 800mhash each board as they 2X chips are used!
So you order 10 of them, you can be sure of getting a minimum of 9ghash as Kano said but according to Dashing, you will actually be getting the other 1ghash too!
I posted what i saw! Sounded pretty good as FPGAs can be resold once they get outdated unlike the ASICs as they are application specific!
So its up to you guyz to decide to buy or not to. I have already received a bulk order.
Anyone still interested, just PM me!


Cheers,
Wilson

Show us the bitcoin you received.

Better yet throw it up on a P2Pool and let us all know what address ya?
It's either stupidity or a scam - absolutely nothing else - either way it doesn't matter.
It's not 1GH/s and most likely 500MH/s at the most if he's using the v42 bitstream.

Wilson you need to drop that stupidity I've already told you it is wrong - continuing to claim it's correct is indeed a SCAM.

It's also not a cgminer bug, it's to do with the settings used or the default settings.
My Icarus code handles all sorts of Icarus bitstream devices with the correct settings, and those settings options are there to change the way it calculates the work done and also to change the timing it uses to send work to the device to avoid it running out of work and being idle.
The Icarus driver default expects a device with 2 FPGAs, fixed frequency (380MH/s), and the bitstream halving the work in a specific way (which is what a standard Icarus does).
You need to use different options if the device is different to a standard Icarus
If it's different, the default options will get wrong values for MH/s since it counts hashes based on the settings.
If they are very wrong, the device will often fall idle and do nothing for short periods of time.

... and all this is documented in the FPGA-README that I wrote last year ...


Title: Re: FPGA!!!
Post by: Dashing on May 27, 2013, 11:11:37 AM
See...
I am not forcing anyone to buy this! I am tiered of convincing people. Those who believe may! No competition...
I have posted what i have seen.
I am not going to convince any more people!
I have made this post based on Dashing's miner performance! And what i saw was each board was at 998mhash and 1.02ghash. Avg of 994mhash. I think that's good enough and worth, as the shipping is within 20 days.
Atleast we all know that we as going to get a minimum of 800mhash each board as they 2X chips are used!
So you order 10 of them, you can be sure of getting a minimum of 9ghash as Kano said but according to Dashing, you will actually be getting the other 1ghash too!
I posted what i saw! Sounded pretty good as FPGAs can be resold once they get outdated unlike the ASICs as they are application specific!
So its up to you guyz to decide to buy or not to. I have already received a bulk order.
Anyone still interested, just PM me!


Cheers,
Wilson

Show us the bitcoin you received.

Better yet throw it up on a P2Pool and let us all know what address ya?
It's either stupidity or a scam - absolutely nothing else - either way it doesn't matter.
It's not 1GH/s and most likely 500MH/s at the most if he's using the v42 bitstream.

Wilson you need to drop that stupidity I've already told you it is wrong - continuing to claim it's correct is indeed a SCAM.

It's also not a cgminer bug, it's to do with the settings used or the default settings.
My Icarus code handles all sorts of Icarus bitstream devices with the correct settings, and those settings options are there to change the way it calculates the work done and also to change the timing it uses to send work to the device to avoid it running out of work and being idle.
The Icarus driver default expects a device with 2 FPGAs, fixed frequency (380MH/s), and the bitstream halving the work in a specific way (which is what a standard Icarus does).
You need to use different options if the device is different to a standard Icarus
If it's different, the default options will get wrong values for MH/s since it counts hashes based on the settings.
If they are very wrong, the device will often fall idle and do nothing for short periods of time.

... and all this is documented in the FPGA-README that I wrote last year ...

HI Kano
I think all this because of the confusion I have cleared it here.......


Alright, just saw OP edits and will pass on my 1.5 c.

OP had not posted expected hashrate. I would assume that he added
Quote
Its approx 4btc @ 1ghash!
, after checking with his customer - Dashing.

Dashing is testing the equipment that he purchased and only vouching for what he can see, accompanied by screenshots. Seems very legit and Dashing's words show that he does honestly believe the hashrate he sees.

Kano's confirmation of the same overrides what Dashing's tests have proved, unless we are talking about some other FPGA which has been customized.

In this event, I would either request a demo unit to be sent to kano to test and send back.
Or, some actual specs that can be investigated by the community.

Hmm, i think this is what might have happened :/ I got the boards from Wilson (he never promised me 1 Ghash) and then was surprised to see the hash rate on the first 2 boards and told him about the hashrate, hence the reason why he probably offered it at 1 ghash

I never fudged/played with any stats,
I just use --ircrus-timing short as usual and nothing else, I don't know why its reporting that, i'll probably recompile cgminer agian from git :)


Title: Re: FPGA!!!
Post by: kano on May 27, 2013, 01:40:12 PM
...
HI Kano
I think all this because of the confusion I have cleared it here.......
...
Except that the post of his quoted is still saying it's valid ...
and his last two posts haven't taken back that comment ...

specially this comment pissed me off too ... coz it's a lie ...
Quote
So you order 10 of them, you can be sure of getting a minimum of 9ghash as Kano said but according to Dashing, you will actually be getting the other 1ghash too!


Title: Re: FPGA!!!
Post by: Wilson on May 27, 2013, 03:35:07 PM
I am really sorry, if it has to be this way!
I just advertised the info given by Dashing... Thought it would help people out there expecting better hash at lesser price!


Title: Re: FPGA!!!
Post by: Wilson on May 27, 2013, 03:42:05 PM
I take back all my posts as it was an error with the display!
Was misled buy the display error!
All your btc deposits have been refunded except for few who wanted me to substitute it with the 400mhash boards.


Title: Re: FPGA!!!
Post by: Pinwheel on May 27, 2013, 03:59:26 PM
why is that truth is alway has a bitter test