Block Erupter Prisma (>=1.4 T/device, 0.75-0.78 W/G, <1 BTC/T, October Shipping)

[elasticband]

where i can i buy one of these in the EU?

[1715467650]

1715467650

[1715467650]

1715467650

[ManeBjorn]

I need to get my hands on a few of the UART adaptors so I can try and figure out the issues.

[Blazed]

I need to get my hands on a few of the UART adaptors so I can try and figure out the issues.

Well maybe I send you mine...I have given up on it. I have a BE Controller on the way to get this thing up and running.

[praeluceo]

Finally got our tracking number, almost a month after ordering! Luckily diff. changes have been small in the meantime, but goodness, ordering the Prisma was like pulling teeth compared to other non pre-order rigs I've purchased!

Just glad to finally have it, and holding out hope for decent compensation when Phasebird gets around to following through on that.

[SEGMining]

Wiped Pi and followed your setup...same errors. This makes 2 times in a row I have been burned buying AM gear. First I bought a tube with a completely dead BE Controller and now this.

Have you tried running it from a desktop or laptop computer?  BTW, we use raspian for the image. 

[Blazed]

I will probably give that a shot...once I get that controller I will be selling this thing off. I will not ever be buying AM gear again that is for sure. If anyone wants to buy this Prisma that has a good controller let me know (obviously I can not confirm it works though).

[terrapinflyer]

I will probably give that a shot...once I get that controller I will be selling this thing off. I will not ever be buying AM gear again that is for sure. If anyone wants to buy this Prisma that has a good controller let me know (obviously I can not confirm it works though).

That sucks you are having such a hard time. I just hooked mine up to the beaglebone and didnt have a single issue hashing away as advertised.

[sdjernes]

Anyone using the USB adapters? cgminer can not find the miner...so I hot plug and nothing but errors  

I have verified with Grapeape I have the dip switches and cables correct. I compiled cgminer-4.7.1 using --enable-blockerupter

I am using latest wheezy on a rasp pi and just tried it using a powered hub with same result.

I have had each of two of them up with CGminer 4.7.0 on Both Rasbien Jessie and Debian Jessie on the CubieTruck. 

Important note on CGminer for Debian Jessie, the one that fell into the repository is broken.  We did not catch a build system bug fast enough.

The Prisma is a bit of a bear to get running.  It seems to generate a *LOT* of crap when it starts up and sometimes will cause CGminer to segmentation fault.  This is not the fault of the CGminer folks as they were just given the driver by ASICMiner and included it.  After a couple of tries of starting CGminer it will hash stably.

Another minor item to note: The chip on the USB device seems to get power from Prisma so if you power off the Prisma it will disconnect from the computer or at least one of mine did.

Can we get someone with direct contact to ASICMiner in the forums working on providing more info on switchs and what the errors in CGminer mean?  I know they have said China is blocking BitcoinTalk, but any *Good* hacker can get around a firewall or find a friend to be a communication person for them.

[mrpark]

I have the BE Controller, and it works somewhat. I use GHASH.IO, but it's bouncing all over the place. My other no-name dragon type miner is more stable. Hopefully they have a software update for this BE controller soon. Or maybe it's just Ghash.io's fault.

[sdjernes]

This is for those of you who have the USB controller.

I found something that may or may not be of use and needs some testing by others.

If in CGminer you are getting

-- Sync Error
-- Unexpected ??

Try this:

1. Shutdown CGminer (Yes I know it has hot-plug)
2. Unplug and re-plug the USB Controller (power-cycling a powered hub may work)
3. Restart CGminer.

Please report back.

After I had power cycled the Prisma itself 3 times and this problem did not go away I was frustrated and tried this thinking what could happen and it fixed the problem.  I am thinking their may be some sort of initiation issue in ASICMiner's code they gave the CGminer folks.  Causing a already initiated USB-to-Serial device to not correctly re-initialize.

[Blazed]

This is for those of you who have the USB controller.

I found something that may or may not be of use and needs some testing by others.

If in CGminer you are getting

-- Sync Error
-- Unexpected ??

Try this:

1. Shutdown CGminer (Yes I know it has hot-plug)
2. Unplug and re-plug the USB Controller (power-cycling a powered hub may work)
3. Restart CGminer.

Please report back.

After I had power cycled the Prisma itself 3 times and this problem did not go away I was frustrated and tried this thinking what could happen and it fixed the problem.  I am thinking their may be some sort of initiation issue in ASICMiner's code they gave the CGminer folks.  Causing a already initiated USB-to-Serial device to not correctly re-initialize.

I will give it a shot later tonight and see what happens.

[ManeBjorn]

If you do want to I will take it.  I have been trying to get 5 of them for weeks now.

I need to get my hands on a few of the UART adaptors so I can try and figure out the issues.

Well maybe I send you mine...I have given up on it. I have a BE Controller on the way to get this thing up and running.

[whonesta]

Has anyone heard from FC or Phasebird? I have 4 dead boards and getting NO response from AM, did they finally collapse under the weight of their GIANT heads? 30PH/a month my A$$, ton of garbage boards shipped.

[Blazed]

Has anyone heard from FC or Phasebird? I have 4 dead boards and getting NO response from AM, did they finally collapse under the weight of their GIANT heads? 30PH/a month my A$$, ton of garbage boards shipped.

Well they certainly are not here providing any documentation or support.

If anyone wants to buy this Prisma let me know... 1.25BTC and it is yours. I have no idea if it works or not so factor that in (the boards look fine physically)

I will ship first thing tomorrow morning!

[Mabsark]

Wiped Pi and followed your setup...same errors. This makes 2 times in a row I have been burned buying AM gear. First I bought a tube with a completely dead BE Controller and now this.

Did it not seem suspicious to you that someone wanted to sell their brand new Prisma for 1.25 BTC when they cost 1.47 BTC in the group buy? There's always a risk buying second hand stuff.

[Bicknellski]

Has anyone heard from FC or Phasebird? I have 4 dead boards and getting NO response from AM, did they finally collapse under the weight of their GIANT heads? 30PH/a month my A$$, ton of garbage boards shipped.

Question is this a Phasebird issue or a direct Asicminer FriedCat issue?

Are they not a different company and Phasebird and iAsicminer are distributors of Asicminer products?

----

How deep does the problem go?

I see that Canary in the Mine has few issue shipping units or am I mistaken?

[CrazyGuy]

I've had two running on my RPi for the past two and a half hours with no issues. One thing I did notice is that ASICMiner's build of cgminer does not handle the frequency parameter well. When passing "--bet-clk 23", I received a ton of "BET0: Unexpected value 00 received" errors. Starting with no parameters fixed the issue. I will test with the official cgminer branch later.

[vortexz]

On monday I will be reciving my PRISMAS, I was wondering which PSU would be better to use with:

1. http://www.dc-shop.ro/surse/sursa-modulara-super-flower-golden-green-1300w-l/?utm_source=price-ro
2. http://www.shop4pc.ro/sursa-evga-supernova-g2-1300w-complet-modulara-80-plus-gold-active-pfc-120g21300xr-p-39667.html?utm_source=price-ro


I am going to use them with NiceHash, would it work fine with their controllers or do you suggest I should use a Raspberry PI?

[ManeBjorn]

I use the EVGA Supernovas they work great and have a great warranty.
They take a beating and work awesome on 220v.

On monday I will be reciving my PRISMAS, I was wondering which PSU would be better to use with:

1. http://www.dc-shop.ro/surse/sursa-modulara-super-flower-golden-green-1300w-l/?utm_source=price-ro
2. http://www.shop4pc.ro/sursa-evga-supernova-g2-1300w-complet-modulara-80-plus-gold-active-pfc-120g21300xr-p-39667.html?utm_source=price-ro


I am going to use them with NiceHash, would it work fine with their controllers or do you suggest I should use a Raspberry PI?

[psjw4450]

I am glad I stayed away from these.  This just seems like a disaster.  I was going to order a decent amount.  They seem like they are junk.