Latest posts of: Bicknellski

Quote from: Stinky_Pete on July 13, 2013, 03:13:25 PM

I'm interested in a small number (2 or 3 perhaps). What is the postage to UK? Will they get stuck in customs?

All buyers are responsible to at least check with customs in their country regarding any computer peripheral devices like these USB miners.

http://www.ic3.gov/faq/default.aspx

Q: Can I file a complaint if I have been victimized by an individual or company in the United States, but I am not a citizen of the United States?
If one of the two parties involved is located within the United States, please feel free to file a complaint.

http://www.ic3.gov/faq/default.aspx

Q: Can I file a complaint if I am a citizen of the United States but have been victimized by an individual or company outside of the United States?
If one of the two parties involved is located within the United States, please feel free to file a complaint.

+1 BKKCoins thanks again!

Serial numbers for customers?

Wondering about PCBs fabrication is it simple enough to get serial numbers on the K1 / K16 during fabrication so that customers can let us know should they get a dud K1 / K16 or was the serial numbers going to be some how built into the firmware?

Sorry for my ignorance in advance.

Just teasing out the last little problems with the website everyone. We should be ready with it Monday at the latest. Note there is a group buy available to get those lower prices right now with Beastlymac. Tentative shipping prices are posted there as well. As we are doing BTC only our shipping prices will be estimated and before delivery we will confirm based on exchange rate as we have to pay in fiat for shipping.

https://bitcointalk.org/index.php?topic=254358.0

Indonesian community members there is also a group buy here:

This is the link to the Indonesian group buy organized at Kaskus (Indonesian Nation-wide Forum)

---------------------

Ini adalah link ke buy kelompok Indonesia diselenggarakan di Kaskus

http://www.kaskus.co.id/post/51df0bde5a2acf1d7f000005

https://bitcointalk.org/index.php?topic=190731.msg2720178#msg2720178

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I haven't seen it happen again after changing the USB cable to the high quality one from my Canon camera that has a ferrite core near the board connector.

I've wired in the inverters now. The signal has very sharp/fast rise times now and it's easy to see the clock delay is 50nS. I tested it manually in ktest and got all GOOD nonces up to 420 MHz doing repeat work filling the queue . At 430 MHz they came back BAD.

Unfortunately on cgminer the error rate hasn't improved. I haven't run that long yet but I'm seeing 3% - 5% error rates. I believe this is now related to noise on the PLL and instability. It can go quite a long time with no errors, and just when I think Ok, it's down to 1% now, but then a bunch pop up and it's back to 3%.

I'm moving onto final board revisions now. Hope to have a new K16 release later today and k1 tomorrow sometime.

https://bitcointalk.org/index.php?topic=190731.msg2720178#msg2720178

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Quote from: gary492 on July 13, 2013, 02:12:00 AM

so do you have these in hand

No one does.

Read here:

https://bitcointalk.org/index.php?topic=196281.msg2717626#msg2717626

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Pentel Asks:

Any update on the Klondike K1 Nano USB Bitcoin Miner's?

BKK Responds:

I expect to complete a final revision of the board in a couple days, and then order a batch for final testing. The K16 has been verified and this is based on that, uses same firmware and cgminer driver, which are working, though quite basic still. Once boards are ordered I'll have time to polish the code and get a bootloader added (which allows upgrading via USB).

For anyone planning to use the board design for their own project / products, note that I will be changing it to the QFN version of the PIC and the parts list will have some changes.

The K16 has been running quite well for me in testing. The HW error rate is still a bit high and I think some board changes planned will help with that.

Our best hope will be Avalon chips arrive in 2 weeks or less.

We also hope to have Gerbers next week and pay for our Fabricator to source BOM 2 weeks.

If everything aligns properly then production starts 2 to 3 weeks from now.

That would be sweet... but luck would have to be on all our sides and shipping would follow the 24 hour burn in time.

Relevant post... copy and pasted here... hope you don't mind.

https://bitcointalk.org/index.php?topic=255414.msg2719685#msg2719685

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For those wondering about the utility of MondoHub
Today at 12:50:59
Reply with quote #1
MondoHub 28-port:

so I ordered and received this: http://www.cyberguys.com/product-details/?productid=63202

after testing it, I determined that it can only handle 9 USB miners for those of you wondering...
obviously when you read the spec (it comes with a 4A PSU), it's clear that it would not have powered as many miners as there are ports.
however, being the Canary and all, I decided to test it anyways so that there's no question and others don't waste their time...
a few other observations:
- the usb ports on the edges are not well thought out... the miner's heatsink is facing downward toward the surface, so terrible with trying to get fans on it
- there are magets on the bottom, once I moved the hub around gingerly, a few fell off... not a good quality product in my opinion...

Oh the tension... so.... so... sooooooooooo close guys. Cheesy

https://bitcointalk.org/index.php?topic=196281.msg2717626#msg2717626

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Pentel Asks:

Any update on the Klondike K1 Nano USB Bitcoin Miner's?

BKK Responds:

I expect to complete a final revision of the board in a couple days, and then order a batch for final testing. The K16 has been verified and this is based on that, uses same firmware and cgminer driver, which are working, though quite basic still. Once boards are ordered I'll have time to polish the code and get a bootloader added (which allows upgrading via USB).

For anyone planning to use the board design for their own project / products, note that I will be changing it to the QFN version of the PIC and the parts list will have some changes.

The K16 has been running quite well for me in testing. The HW error rate is still a bit high and I think some board changes planned will help with that.

Quote from: gary492 on July 12, 2013, 02:51:09 PM

so how much hash rate will it do

Chips rated 282 Mh/s. BKKCoins has 341 Mh/s as very stable 0 errors under prototype conditions. Likely 341 is not the upper limit for a K1 air cooled with a fan.

https://bitcointalk.org/index.php?topic=190731.msg2705473#msg2705473

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Note: to others with boards, eg. TH. If you can get ferrite beads (as in updated BOM) then you may want to test with them cut into the AVDD PLL power lines on each chip). I can't say if they'll help but they could make all the difference here, and it would be nice to know for a final board.

update: 350 MHz, 7 for 522... 1.3% errors.

Quote from: marto74 on July 11, 2013, 03:23:01 PM

K1

Hashing @ 300 mhz

Hashing @ 350 mhz

We run it for short periods 2-3 min , because there is only heatsink

Quote from: kwilliams on July 12, 2013, 04:39:39 PM

I vote for adding a diode on board to protect against fan malfunction. There's a lot of crap fans out there, some are outright evil....

Agreed. +1

Note that roybitcoin sent me this message about the partial K1 length. Note for those sourcing heat sinks for Nanos.

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Re: (No subject)
« Sent to: Bicknellski on: Today at 22:31:26 »
« You have forwarded or responded to this message. »

I measured 35.88mm from the gerbers files.

~~Is this correct?~~

REVISED Thanks BKKCoins.

Yes my error everyone. The entire length is 50 mm. I ~~will~~ have revise my picture. Thanks roybitcoin for pointing out my error. The guys doing the buying of the heat sinks have the right measurements I on the other hand was a tad sloppy there.

Given that a typical USB plug is 14 mm I will assume that the board for the K1 is 39 36 mm. To check this someone can verify on the Github files for the K1.

https://github.com/bkkcoins/klondike/tree/master/kicad

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Almost. I just measured a board here. Your 39mm is 36mm. The 25 is ok but when cut from a panel of 2 or 4 would probably be 24mm, depending on cutter blade loss. So that is determined by how you assemble them. Most PnP shops will want to put lots of those in one big panel because they're just too small to do one by one. - BKKCoins

roybitcoin

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Re: (No subject)
« Sent to: Bicknellski on: Today at 22:31:26 »
« You have forwarded or responded to this message. »

I measured 35.88mm from the gerbers files.

https://bitcointalk.org/index.php?topic=179769.msg2712907#msg2712907

Stealing from the water block ideas... muhahaha.

The MO-RA3 is a heat exchanger featuring excellent cooling performance and various possibilities of application. Its reliability allows for usage in workstation and server environments and it is sturdy enough for industrial applications. And, of course, it is powerful enough to cool even the hottest gaming PC. True to the slogan “there is no replacement for surface but more surface”, the MO-RA3 uses 36 m copper tubing and 3.0 square meter of aluminium fins for excellent heat transfer from cooling fluid to ambient air.

The cooling fluid passes the 72 tubes in a four-time parallel layout. This design and the flow-optimised connection block ensure a low flow-resistance, despite the large size of the heat-exchanger. The connection block improves flexibility as well by providing G1/4“ threads in three directions. The fins of the MO-RA3 have been optimised specifically for low-rpm fans. Their enormous surface and effective geometry guarantee excellent cooling performance.

Possible fan configurations

MO-RA3 420 LT

Nine 140 x 140 x 25 mm fans

MO-RA3 420 PRO

Eighteen 140 x 140 x 25 mm fans

http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/25120

Updated Parts List for K1Nano.

As we are sourcing parts from outside Indonesia and brought in our prices for parts are higher and our fabrication is in Batam for the boards.

Original parts file on github: https://github.com/bkkcoins/klondike/blob/master/docs/K1%20Parts%20List.ods?raw=true

Quote from: pthnmj on July 12, 2013, 06:57:38 AM

What will you be approxmiately assuming size wise of these Nanos?

USB Drive - Powercable on a small unit or a big rig?

50 mm x 25 mm are the square dimensions.

Note: If the K1 is cut from inside two other boards then the board width could be 24mm according to BKKCoins.

CHECK FOR CORRECT LENGTH FOR HEAT SINK (36mm x 25mm x 10mm)

You plug these K1 Nanos into a USB port or hub.

We are currently sourcing hubs, raspberry pi's, sd cards. We will post more information as soon as we have fully tested our burn hubs. Potentially we want to be able to burn in a large number of K1s at a time so we will definitely have a robust hub that can handle a 24 hour burn in.

The heat sinks, which are attached with an adhesive heat sink pad material at the end of fabrication, is 10 mm high on top of the board height. So be aware of that for spacing on hubs. We want to make sure the heat sink is sufficient for our users for potential over clocking beyond 282 Mh/s. Given the test so far BKKCoins has had stability with air cooling and fan at 341 Mh/s per chip. We are confident that he will push the design further.

We are currently working on the shipping / payment gateway today. I suspect this will be ready today or tomorrow.

Quote from: Inaba on July 12, 2013, 12:51:27 AM

Once again, replace ASIC with GPU. Exact same post as in the past. Same reasons it's complete junk.

Come up with some original material, please.

Stop wasting your time posting... start shipping units to your customers.