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Author Topic: Discontinued: Lancelot (Heavy Duty 400 Mega hashes, 2 x FPGA Mining Board)  (Read 86430 times)
blackarrow (OP)
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May 23, 2013, 04:38:10 PM
Last edit: May 24, 2013, 03:26:17 AM by blackarrow
 #621

Later today I'll open the enclosure and I'll post some pics, so also Blackarrow can see what happened inside the PSU...

Is this the 120 Watt PSU without cooling? We wrote several times here to keep them apart as they heat up and melt the plastic.
For serious miners we recommend the 750Watt PSU that we have on our website.



We manufacture Bitcoin ASICs and Bitcoin mining equipment.
http://www.blackarrowsoftware.com
blackarrow (OP)
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May 23, 2013, 04:40:41 PM
 #622

On a side note: The stock fans on these are _terrible_ -- we've had 3 or 4 start to fail with bad bearings already... and I'm sure others will follow shortly Sad

These are the best we've found. We have even picked up 24Volt fans and running them at 12Volt so they'll make less noise.
If you send them back we'll be happy to replace them and have a chat with the factory about their quality control.


We manufacture Bitcoin ASICs and Bitcoin mining equipment.
http://www.blackarrowsoftware.com
Pistachio
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May 23, 2013, 05:28:16 PM
 #623

If you need a quick replacement, newegg has some good deals on PSUs. I picked up a Sparkle 500w 80plus platinum for $65 that's working fine with 14 lancelot boards. Today, they are advertising a Corsair 650w 80plus bronze for $59 after $20 MIR and $10 coupon EMCXRVT52 http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020&nm_mc=EMC-IGNEFL052313&cm_mmc=EMC-IGNEFL052313-_-EMC-052313-Latest-_-PowerSupplies-_-17139020-L011A.
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May 23, 2013, 05:33:22 PM
 #624

NEVER stack the PSUs!!! Tonight the topmost of them (after about 4 hours of full load work) has been literally blown away by the heat, with the plastic enclosure partially melted!

Plastic enclosure huh?  Sounds like a wallwart or brick-style power adapter.  Not recommended (by me).

Personally, I run all my stacks off of quality 80-Plus ATX power supplies (Seasonic, Antec).

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May 23, 2013, 06:08:37 PM
 #625

Hey Guys,
I got a few requests for a 'non' sudo version of the script for a few OS's like PCLinuxOS which are debian based but dont have sudo, so I have made a new version of the autosetup script for the Lancelot, here,

https://github.com/arjitc/autoLancelot-/blob/master/install-nosudo.sh

Instructions to use :
wget https://raw.github.com/arjitc/autoLancelot-/master/install-nosudo.sh
chmod +x install-nosudo.sh
./install-nosudo.sh


Note, this script does "EVERYTHING" for you and it's a ready to go script, it installs/configures CGminer for you and makes it ready to mine!

Thanks!

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May 23, 2013, 06:15:30 PM
 #626

https://github.com/arjitc/autoLancelot-/blob/master/install-nosudo.sh
...
this script does "EVERYTHING" for you and it's a ready to go script, it installs/configures CGminer for you and makes it ready to mine!

Nice script.  Thanks for sharing it.

Is it really necessary to specify the vendor and product IDs when loading the LKM?  I've always had it work without specifying those.

If they are indeed necessary, you may want to add "rmmod ftdi_sio" beforehand, to unload the module in case it's already loaded (without having had those parameters specified).

"All safe deposit boxes in banks or financial institutions have been sealed... and may only be opened in the presence of an agent of the I.R.S." - President F.D. Roosevelt, 1933
jimmy3dita
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May 23, 2013, 10:00:10 PM
 #627

Later today I'll open the enclosure and I'll post some pics, so also Blackarrow can see what happened inside the PSU...

Is this the 120 Watt PSU without heating? We wrote several times here to keep them apart as they heat up and melt the plastic.
For serious miners we recommend the 750Watt PSU that we have on our website.




Yes, that is the reason why I ordered the Lancelot to ATX adapter! Unfortunately I didn't receive that very item, getting three 120watt PSU instead.

By the way, I've carefully opened the enclosure, it appears that is simply the fuse (nothing else is burned). It's soldered on the board, I'll swap it tomorrow Wink

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May 24, 2013, 02:06:53 AM
 #628

On a side note: The stock fans on these are _terrible_ -- we've had 3 or 4 start to fail with bad bearings already... and I'm sure others will follow shortly Sad

These are the best we've found. We have even picked up 24Volt fans and running them at 12Volt so they'll make less noise.
If you send them back we'll be happy to replace them and have a chat with the factory about their quality control.




Will it Void the board warranty if the fans fail and we swap them with out own (saves the hassle of shipping board back and fourth all the time Tongue) ??
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May 24, 2013, 02:59:08 AM
 #629

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!

Hasnt anyone realized yet that this is a terrible deal? I would buy these for 1 btc each.

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elchorizo
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May 24, 2013, 03:10:48 AM
 #630

Hasnt anyone realized yet that this is a terrible deal? I would buy these for 1 btc each.

You quoted that entire post to say that? If you don't think its a good deal, don't buy. Simple as that.

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bitpop
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May 24, 2013, 03:15:10 AM
 #631

lol hes a troll

kano
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May 24, 2013, 03:17:51 AM
 #632

I thought it was a pretty good advert to buy them ... except the last line Smiley
Just ignore the last line Smiley

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May 24, 2013, 03:18:28 AM
 #633


Hasnt anyone realized yet that this is a terrible deal? I would buy these for 1 btc each.

Wait a few months they might be 1btc.

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May 24, 2013, 03:19:17 AM
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Hasnt anyone realized yet that this is a terrible deal? I would buy these for 1 btc each.

Wait a few months they might be 1btc.
Subtle but excellent reply Smiley

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blackarrow (OP)
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May 24, 2013, 03:31:02 AM
 #635

Will it Void the board warranty if the fans fail and we swap them with out own (saves the hassle of shipping board back and fourth all the time Tongue) ??

It won't void the warranty. You can replace them if you need to.


We manufacture Bitcoin ASICs and Bitcoin mining equipment.
http://www.blackarrowsoftware.com
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May 24, 2013, 03:46:09 AM
 #636

Will it Void the board warranty if the fans fail and we swap them with out own (saves the hassle of shipping board back and fourth all the time Tongue) ??

It won't void the warranty. You can replace them if you need to.



Brilliant Cheesy thanks mate Cheesy
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May 24, 2013, 03:51:07 AM
 #637

Block Eruptor USB or Blades are a better deal than this.

The Blades are a pain to run, they take some hacks to even get them going. There are only a limited number of them and the cost of entry is really high. Probably too high for an enthusiast.

I haven't seen anyone use the Block Eruptor USB's yet so I can't comment there but the hash/$ isn't much different.

These are available, in hand and hashing away and FPGA chips have other uses so resale should be decent in the future.

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May 24, 2013, 03:55:39 AM
 #638

THIS is the ONLY thing you can get in your hands within a couple weeks.

milly6
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May 24, 2013, 06:38:06 AM
 #639

On a side note: The stock fans on these are _terrible_ -- we've had 3 or 4 start to fail with bad bearings already... and I'm sure others will follow shortly Sad

These are the best we've found. We have even picked up 24Volt fans and running them at 12Volt so they'll make less noise.
If you send them back we'll be happy to replace them and have a chat with the factory about their quality control.


that might be the problem using fans that should be run at 24v at 12v...hmm...

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May 24, 2013, 07:11:14 AM
 #640

Probably cheaper to buy new ones. Can someone find a good replacement on eBay?

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