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Showing 12 of 12 results by plasticuser
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Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $1.99/GH/s, miners from $2.97/GH/s
by
plasticuser
on 13/01/2014, 20:06:35 UTC
I'm interested in designing a PCB for minions. I can see the need for a mid-range board that can hold four or eight minions.

I have read the chip datasheet. Does Black Arrow have any schematics/DOMs, and is BA able to supply firmware?
Post
Topic
Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
plasticuser
on 25/12/2013, 18:50:08 UTC
This was the one with the short on the 3.3V rail, right?
I've never seen anything like that. I had one that came in that had one ASIC that didn't work; it had a crack along one side of an ASIC and another ASIC had a crushed corner. That was pretty obvious physical damage though.

It's too bad that the ultrasonic bath didn't help any further. Do you know if Keefe used something conductive/capacitive like Arctic Silver?

That's the one. He hasn't, but I have. I applied it to the heatsink, not the ASICs, and a very thin layer that has contacted the tops of the ICs but never the sides or board.

The chili flash utility gives me the following:

DEVICE: Chili SC
MANUFACTURER: MrTeal and ChipGeek
FIRMWARE: 1.2.14e
CHIP PARALLELIZATION: NO
QUEUE DEPTH:40
PROCESSOR 3: 1 engines @ 172 MHz -- MAP: 0080
PROCESSOR 4: 11 engines @ 194 MHz -- MAP: FFE0
THEORETICAL MAX: 2.30 GH/s
ENGINES: 12
FREQUENCY: 192 MHz
CRITICAL TEMPERATURE: 0
TOTAL THERMAL CYCLES: 0
XLINK MODE: MASTER
XLINK PRESENT: NO
OK

At this point I'm giving up. Normally, I'd return it, but it's hardly Keefe's fault this happened. I think simply the stress of removing and replacing the heatsink may have done it in. it won't mine and I don't know how to fix it.

If anyone would like to buy the mostly dead board off me for experimentation, PM me. Be aware, the ARM chip works, but everything else is unverified/unknown. All I changed was putting stick on memory cooler chips on the power mosfets, and ultrasound clean it when I discovered debris under the edge of an ASIC (which may, but probably may not, be responsible)... Failing a buyer, I'll mail it to MrTeal so he might learn from the failure if it has any lessons that apply to other boards.

Also, Keefe has been more than fair, and this in no way represents any reflection on him. He sold me a known glitchy board, and stated so up front. It worked here for 18 hours before dying while I wasn't present. I appreciate the supportive PM that suggested I get my money back, but it's not Keefe's fault.
Post
Topic
Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
plasticuser
on 25/12/2013, 08:20:01 UTC
Now I have one mining and the other mines for a few minutes then switches to a gazillion gigahash and 100% HW errors

I had one like this. Well, the high GH and 100% errors part. But it would usually go for days between random occurrences. Cycling power always got it working again, usually for another few days. I sold it to plasticuser recently, so keep an eye out for any solutions he finds.

I reflashed it to 14e. It does the start-up LEDs, BFGminer recognizes it, it then reports it's doing TH/s, 100% error rate, and stops. In a windows VM, the chiliflash app reports it has four working chips: two with 11 engines and two with one engine. The total theoretical speed varies from 2 - 4GH. It's something hardware related, I believe.

Shame I only got about 18 hours of hashing with it before it fell over, but those are the breaks. I wish I could tell which ASICs were good.

Now BFL has sharply reduced prices on their 65nm line, I'm open to buying another chili or two if the price is reasonable. I'm not put off by one fussy board.
Post
Topic
Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
plasticuser
on 23/12/2013, 22:25:14 UTC
I am working on some firmware updates that will fix most (or all?) of the problems the boards are having.  For example, one failure I think I have figured out is occasionally a board will jump to more than 100 GH/s but have 100% hardware errors.  I have one board that does this once per day or so and needs to be rebooted.  After chasing this for a while, I believe I have finally figured out what is going on and will have a fix in the next release.

I have a semi-dead board I recently bought from Keefe that does exactly this. It has always been prone to freezing. I received it from him last Friday, then went out of town overnight. On Saturday it was hung hard, and no amount of restarting/cooling would help it. It has been thoroughly inspected and has no visible flaws. There was an apparent short 3v3->ground, but I found some TIM under the edge of an ASIC, so overnight cleaning in an ultrasound bath should have removed all debris. (The TIM had an electrical conductivity I could measure with my ohmmeter.)

Now, it starts seemingly normally, then reports a ridiculously high speed, 100% error rate for 10 proofs, and stops. BFGminer reports it as sick, 27C. I don't know how to tell what firmware it has, etc.

Any suggestions welcomed.
Post
Topic
Board Scam Accusations
Re: Bryan Micon's Butterfly Labs Scammer Investigation including Josh Zerlan
by
plasticuser
on 16/12/2013, 20:02:19 UTC
It's an unwinable bet. One of the parties to the bet gets to judge whether the conditions have been met.

The whole purpose of the bet is to put the other party to the bet on the defensive. To prove.... nothing. People have opinions of other people, of how businesses are run. Some people win, some people lose. Some people like to stick it to the man. Whatever.

Josh, you have a habit of offending your customers. You feel slighted, and many feel the slighting is fair. You could use a good PR guy. When you get posted on slashdot and half the comments are criticisms of you personally, you might want to reconsider how you interface with the world. How you might do that, or if you do that at all is entirely up to you. You're responsible for your own actions.

Keltic, you have such a strong sense of injustice, but it'll get you nowhere. Josh doesn't care about your feelings. Josh is a businessman. His job is to get the money out of your pocket and into his coffers. He goes a little further than some might, but he seems to deliver the product eventually and even get it right most of the time. The business he is in is in an entirely new frontier - almost the Wild West. Adjust your expectations accordingly. He doesn't need your business. He's back-ordered - there are a dozen other customers to replace you.

To everyone else: BFL has a crappy reputation, and they've earned it. They delivered later than late on a major product line. Consider this: they sold many MANY more units than they imagined they would. The money was rolling in. It was only when they were deep in order-book trouble that they had any inkling of the fulfillment problem they had. It is HARD to scale up a production business. I know. I have had to do it multiple times. The main thing that had them in trouble was the pre-orders. With the Monarch they have repeated the mistake with pre-orders, but they have simplified the production cycle greatly in a learned response to the complexity of their previous product lines. Subject to ASIC availability, they'll be able to fire out Monarchs at an unprecedented rate. Getting to shipping will be hard, but once they're there, they (and their customers) will have a much easier time of it. If they get to where they can develop the next generation on this generation's earnings, there will be no need for pre-orders. They should plan accordingly.

Everyone, lighten up. Josh, no need to be so defensive. Keltic, take a deep breath. Let's wait and see what happens next.

Too much butt-hurt in this thread.
Post
Topic
Board Project Development
Re: v5.6.0 ][ Open-Source Pooling Web Software ( MiningFarm )
by
plasticuser
on 03/12/2013, 23:33:58 UTC
Made any progress? Your website isn't working...
Post
Topic
Board Computer hardware
Re: [WTS] Delivered and Mining BitForce 500 GH/s Mini Rig SC - 20 BTC
by
plasticuser
on 30/11/2013, 20:45:15 UTC
Or sell off the individual singles inside it, uncased, for around 2500 each.
Post
Topic
Board Marketplace
Re: [WTS] ButterflyLabs August 18 Monarch 600 GH/s Pre-Order
by
plasticuser
on 30/11/2013, 18:13:01 UTC
And you could bank on the KnC delivering first Wink
Post
Topic
Board MultiBit
Re: Adding a vanity Address and PrivKey to MultiBit?
by
plasticuser
on 30/11/2013, 03:42:29 UTC
Thank you. This worked 100%.

Very much appreciated. Thank you again. Smiley
Post
Topic
Board MultiBit
Topic OP
Adding a vanity Address and PrivKey to MultiBit?
by
plasticuser
on 28/11/2013, 22:00:28 UTC
I generated a vanity Address and PrivKey that's 9 letters, so obviously this was a lot of computational effort.

How can I add this to MultiBit to be a valid wallet?
Post
Topic
Board Hardware
Re: Time to sue ButterflyLabs - Big Single-SC owner let's league for class action
by
plasticuser
on 28/08/2013, 00:11:37 UTC
How much did the process cost so far? (30$?)

How involved was the paper filing process? (or did you do it online?)

The cost so far has been $55. $50 is the filing fee, and $5 is the separate service fee, which is sent to the sheriff's dept.

The process was just two simple forms.
Post
Topic
Board Hardware
Re: Time to sue ButterflyLabs - Big Single-SC owner let's league for class action
by
plasticuser
on 27/08/2013, 19:03:00 UTC
I have filed against BFL in their county's small claims court. I'm just waiting for an acknowledgement and notice of service.

This will afford me some discovery.

Alas, if BFL sends me a miner before the court date, there's little I can do as they'll have a perfect defense, but that's pretty much the only defense they have at their disposal.