Discontinued: Lancelot (Heavy Duty 400 Mega hashes, 2 x FPGA Mining Board)

[turtle83]

@ckolivas: Is there an issue tracker for cgminer? I am having trouble with ztex (hence dont want to threadjack here about competing vendor). Whats the best place to report it? I am a little reluctant to post in the huge cgminer thread without reading 512 pages....

bfgminer works fine, cgminer detects the ztex, but breaks during configuration. Id much rather use cgminer for my purpose.

[-ck]

@ckolivas: Is there an issue tracker for cgminer? I am having trouble with ztex (hence dont want to threadjack here about competing vendor). Whats the best place to report it? I am a little reluctant to post in the huge cgminer thread without reading 512 pages....

bfgminer works fine, cgminer detects the ztex, but breaks during configuration. Id much rather use cgminer for my purpose.

Everything must go through the cgminer thread or by being reported directly to us in IRC, sorry. I had to disable git issues since people were using that to post their configuration problems for a long time making it useless for real issue tracking. Alas, ztex is a bit of a problem with no active maintainer at the moment, but there are other people beside me that help and monitor the cgminer thread.
EDIT: Despite the apparently high post count, we do monitor the cgminer thread very closely. I just don't post in response to every bug report that is a repeat or config issue.

[kano]

Thanks. I ended up adding a second computer anyway due to usb problems. 128 device limit is bs. Mine couldn't handle 20. Or these serial chips suck. Wonder if prolific has the same issues. Ftdi Has always been a Bitch.

I disagree. On our testbench we've been testing 50 Lancelots on a Linux computer at the same time.

Now we've got 12v 62Amps power supplies (will post them for sale too) and we're planning to up  this number to 100 lancelots or more.

Back in March last year Xiangfu had at one stage 41 Icarus on one computer ...
https://bitcointalk.org/index.php?topic=51371.msg816966#msg816966

Later he had something like 90 for a short while, but I can't remember if it was on a single computer or not.

So I expect 100 Lancelot to work fine also.

[FlappySocks]

Bitpop is using windows, so it's possibly a limit on the driver or something.  15 sounds like the maximum IRQ limit from the days of DOS.

[bitpop]

How do the usb ports translate into cygwin?

How do I increase the window size? I can only see 14, hoping there's one more but the window won't resize.

Install cygwin and run cgminer in its terminal program, which has a properly resizable window.

http://www.cygwin.com/

Cygwin is standard equipment on all of my Windows instances.

[bitpop]

Is it ok to use 6 pin pci-e and leave 2 pins unplugged? I can only get 6 pins in. I cant force the 2 others because one is square and one is a circle. I don't want to ruin my PSU. IF you ever get the right connectors, can you send me 2? I can solder it myself.

I also have 2 fans making noise, hope they don't fail. Otherwise these boards are great. I had to use 2 computers with 10 boards each because I have USB problems.

PROBLEM: Blackarrow, your pci-e ports are wrong! I can only get 6 pins in, not 8! You seem to have used EPS sockets. What is the remedy? Will there be shorts or problems with only 6 pins or were you expecting EPS and I will get shorts? I paid extra for a PSU with 2 8 pin pci-e and this is frustrating.

http://imgur.com/a/MTonY

The connectors that we've used are not PCI-E because we couldn't find PCI-E as we've wrote everybody who've ordered ATX converters. We've delayed few orders for 3-4 days because we're waiting for the right connectors from the factory. We got the wrong connectors from the factory but we've discovered that you are actually able to fit the PCI-E connectors in these ones and they work without problems, so we've shipped them this way.

If you want the right connectors at the moment we need to place an order for 25000 pcs. Would you be willing to purchase this amount of connectors? :-)

Quick solution: just plug the PCI-E in using more force.

P.S: Imgur.com is blocked in China, I cannot see your pictures.

[bitpop]

What do all the buttons on the board do?

Are these boards ok to use with P2Pool?

And finally, the consensus is to use  --icarus-timing short?

[Schrankwand]

Is it ok to use 6 pin pci-e and leave 2 pins unplugged? I can only get 6 pins in. I cant force the 2 others because one is square and one is a circle. I don't want to ruin my PSU. IF you ever get the right connectors, can you send me 2? I can solder it myself.

Do you mean using 6 instead of 8 pins or using 4 instead of 6?

[bitpop]

Yeah I'm on windows..

Thanks. I ended up adding a second computer anyway due to usb problems. 128 device limit is bs. Mine couldn't handle 20. Or these serial chips suck. Wonder if prolific has the same issues. Ftdi Has always been a Bitch.

I disagree. On our testbench we've been testing 50 Lancelots on a Linux computer at the same time.

Now we've got 12v 62Amps power supplies (will post them for sale too) and we're planning to up  this number to 100 lancelots or more.

Back in March last year Xiangfu had at one stage 41 Icarus on one computer ...
https://bitcointalk.org/index.php?topic=51371.msg816966#msg816966

Later he had something like 90 for a short while, but I can't remember if it was on a single computer or not.

So I expect 100 Lancelot to work fine also.

[bitpop]

Yup I saw "resource limits reached" Fuck I hate the old days of IRQ. Still seems windows server 2012 x64 has the same limit.

Bitpop is using windows, so it's possibly a limit on the driver or something.  15 sounds like the maximum IRQ limit from the days of DOS.

[blackarrow]

Is it ok to use 6 pin pci-e and leave 2 pins unplugged? I can only get 6 pins in. I cant force the 2 others because one is square and one is a circle. I don't want to ruin my PSU. IF you ever get the right connectors, can you send me 2? I can solder it myself.

Yes, you should be fine.

Is it ok to use 6 pin pci-
I also have 2 fans making noise, hope they don't fail. Otherwise these boards are great. I had to use 2 computers with 10 boards each because I have USB problems.

Wouldn't it be easier to install vmware + linux on one of those and run all on the same computer?

[bitpop]

The usb controller may still have issues even with virtualizing them.

Is it ok to use 6 pin pci-e and leave 2 pins unplugged? I can only get 6 pins in. I cant force the 2 others because one is square and one is a circle. I don't want to ruin my PSU. IF you ever get the right connectors, can you send me 2? I can solder it myself.

Yes, you should be fine.

Is it ok to use 6 pin pci-
I also have 2 fans making noise, hope they don't fail. Otherwise these boards are great. I had to use 2 computers with 10 boards each because I have USB problems.

Wouldn't it be easier to install vmware + linux on one of those and run all on the same computer?

[bitpop]

Just wanted you guys to support my P2Pool. 0% fee, 24/7 reliable!
I'm running my 8ghs on it.

https://bitcointalk.org/index.php?topic=68743.0

[blackarrow]

Does anybody know how to add http://www.cardreaderfactory.com/shop/lancelot.html and http://www.cardreaderfactory.com/shop/lancelot-group-manufacturing.html to https://en.bitcoin.it/wiki/Mining_hardware_comparison?

[bitpop]

Try posting in the wikis discussion

[bitpop]

I have fixed my USB issues. Seems I was using USB 3 ports, the only ones on my computer except for 2 for the mouse and keyboard. The ivy bridge controller had a 15 device limit and the ASSmedia controller simply fails. I used a bracket into the motherboard usb 2.0 header and I now run 20 units fine. I may get 50 more so watch out people!

[iamthekey]

good job

[blackarrow]

Stock update: We've received all payments for all Lancelot boards from batch 3 (shipping next week).

All new orders will be shipped from next batch which today looks that will be on 17th of July because at the beginning of July we will receive our own order of FPGAs from Xilinx.

However, next batch might ship sooner if we find more FPGAs in stock at local suppliers. However this looks more and more unlikely.

If you've placed an order with us we will email you to pay as soon as we have the FPGAs in our hand.

If you're looking to purchase hundreds of devices, please join the group manufacturing scheme now so we can ensure that we include your order requirements with Xilinx. We will stop taking orders for group manufacturing on Wednesday.

[Pionwave]

We will stop taking orders for group manufacturing on Wednesday.

Do you mean that you will stop taking group orders for the current group on Wednesday? Or that you will stop taking group orders?

[LaserHorse]

Stock update: We've received all payments for all Lancelot boards from batch 3 (shipping next week).

All new orders will be shipped from next batch which today looks that will be on 17th of July because at the beginning of July we will receive our own order of FPGAs from Xilinx.

However, next batch might ship sooner if we find more FPGAs in stock at local suppliers. However this looks more and more unlikely.

If you've placed an order with us we will email you to pay as soon as we have the FPGAs in our hand.

If you're looking to purchase hundreds of devices, please join the group manufacturing scheme now so we can ensure that we include your order requirements with Xilinx. We will stop taking orders for group manufacturing on Wednesday.

Thanks for the update, blackarrow.  But the fact that your product page still says "In Stock" is blatantly deceptive.
Three days ago, I placed an order for an "In Stock" product and was immediately told the item was backordered and I would receive a notification in the next 4-7 days for payment.  I now learn through your post that my order will most likely not be available for an additional 4 weeks.

I understand the manufacturing and supply chain process can be very challenging, but placing an overseas order like this requires a great deal of trust from the customer and when a customer's expectations are manipulated and/or misinformed by the seller - that trust erodes quickly.

Of course, I have not yet made any actual payment, so there is no measurable loss of funds here, but you should know - this sort of practice is disruptive & irritating and furthermore seems unsuitable to the communicative & helpful person that you seem to be.

EDIT: blackarrow explains this is a limitation of their webstore - https://bitcointalk.org/index.php?topic=187549.msg2205714#msg2205714