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Topic: DRILLBIT SYSTEM Miners - Avalon range available - Now $104.99! - page 21. (Read 273811 times)

hero member
Activity: 756
Merit: 500
sr. member
Activity: 291
Merit: 250
Scam-Busting PSA: Beware of Black Arrow Software
OT sort of, but just saw this on Amazon. USB hub and has a couple good reviews for miners. One said 5 to 7 miners on it. On sale for $25!

http://www.amazon.com/Etekcity%C2%AE-Premium-Port-Powered-External/dp/B00ELPSEVW/ (affiliate referral link removed by personal preference)
The spec for that lists the power supply as being 3amp. USB Spec is to deliver up to 0.5a per port, so this unit is unable to provide maximum power to all 10 ports, I'd personally avoid this particular model for serious mining.
member
Activity: 138
Merit: 10
OT sort of, but just saw this on Amazon. USB hub and has a couple good reviews for miners. One said 5 to 7 miners on it. On sale for $25!

http://www.amazon.com/Etekcity%C2%AE-Premium-Port-Powered-External/dp/B00ELPSEVW/?tag=wasd-20

I have been running the USB 3.0 version and they are great. These seem a little limited because you will max out at 36 watts which would be running the power supply near capacity with all 10 slots filled which will most likely shorten its life.
newbie
Activity: 18
Merit: 0
OT sort of, but just saw this on Amazon. USB hub and has a couple good reviews for miners. One said 5 to 7 miners on it. On sale for $25!

http://www.amazon.com/Etekcity%C2%AE-Premium-Port-Powered-External/dp/B00ELPSEVW/?tag=wasd-20
erk
hero member
Activity: 826
Merit: 500
My board turned up today, it's mining away.

About 18.5GH/s with cgminer 3.8.4 and the new firmware at 37.4C

It was a little faster on cgminer 3.8.1 and the old firmware, but that didn't report the temp so I don't know it it was driving the board harder.


Did you receive an email or anything with tracking?
Nah, it just turned up express post which is overnight, no time for tracking numbers.

member
Activity: 64
Merit: 10
Did you receive an email or anything with tracking?

I didn't get a tracking number. Just turned up on my front step at 9am. No complaints about the speed of shipping of course, but notification that the board was on its way would've been preferable (theft, rain etc.)

Yeah I'm a bit disappointed losing one board, but I've still got three good boards churning out ~56GH/s, and I've added another fan on it which has lowered temps by a few degrees celsius. As long as none of them go kaput as well (touch wood!), I'll still break even dollar-wise within two months. Smiley Just need to get the dead board repaired.
sr. member
Activity: 336
Merit: 250
My board turned up today, it's mining away.

About 18.5GH/s with cgminer 3.8.4 and the new firmware at 37.4C

It was a little faster on cgminer 3.8.1 and the old firmware, but that didn't report the temp so I don't know it it was driving the board harder.


Did you receive an email or anything with tracking?
erk
hero member
Activity: 826
Merit: 500
My board turned up today, it's mining away.

About 18.5GH/s with cgminer 3.8.4 and the new firmware at 37.4C

It was a little faster on cgminer 3.8.1 and the old firmware, but that didn't report the temp so I don't know it it was driving the board harder.
sr. member
Activity: 336
Merit: 250
Looks like this rollercoaster ride isn't over:

http://drillbitsystem.com/forum/index.php?topic=206.120
Oh bummer. Sad

One of my boards is dead -- no green light. I suspect it was my fault as it happened after I moved the boards a bit [EDIT: with the rig powered off].

After getting my boards today, I eventually got the four of them setup and purring along at a combined 72.5GH/s for an hour and a half, with "int:40:1:850" settings, and 3.5% HW errors. Temps stabilised at 37/36/35/30c.

Turned off the rig to try out a different cooling fan. Got that setup no problem. Went to turn the rig back on and one of the boards didn't have its green light on, and was making a piercing/high pitched and loud electrical noise. I had the boards setup to automatically start mining on startup. The little Atmel chip on the board without a green light gave off a bright spark and then started smoking. I turned the PC off immediately with the PSU switch (after about 1~2 seconds of smoke). Took it out, and got it on my desk now. The heatsink on the line regulator is still attached, no problems there. The little Atmel chip has a tiny scar on it.

My other three boards are running fine at least. I'll leave them running and monitor them for the next few hours.

I haven't plugged the dead board in since then, and I'm not sure what to do with it now. Undecided
hero member
Activity: 518
Merit: 500
Hey guys, I am back from china, and I will be working with TK to get the US boards back to everyone after repairs are completed.

Welcome back Smiley and thanks for all the help with this GB/homebrew card project!!
hero member
Activity: 546
Merit: 500
Owner, Minersource.net
Hey guys, I am back from china, and I will be working with TK to get the US boards back to everyone after repairs are completed.
hero member
Activity: 616
Merit: 500
Barn,
Thanks for the modded board. Smiley
To provide an idea what it looks like


It has been hashing for a while, tried different settings.  This is after almost an hour on int:50:2:950  (but results are similar to stock)



checking temperatures

ambient 27.2 C
large heatsink 32.1 C
Power MosFets 30.7 C
new Lin Reg 31.9 C (Edit:  this is on the clip on heatsink, the regulator body is at 39.2 C now)
top right hand BF ASIC (near board's corner) 29.8C

(I posted a similar input at http://drillbitsystem.com/forum/index.php?topic=206.105)

Happy Hashing!!! Grin

ps:  just completed the night hashing, no problems.
sr. member
Activity: 266
Merit: 250
** Could the member from Zionsville, IN please contact me in PM with your name (to validate you're said member). I need to double check that everything arrived as the bottom of your box was completely wide open / no tape. **
legendary
Activity: 1442
Merit: 1000
Antifragile
If you missed this, from Barntech:

**** Update 10-12-13****

Hey guys. OK i'm back, had a great weekend away and came back to good news! The team have implemented the fix into 30 boards and they have been running successfully for two days. Cheesy Looks like we're in business. I am shipping out those 30 boards now and the rest will be ready and tested tomorrow. We have passed the info on to our repairers in the states and the U.K. so we are ready to go into full repair mode.

Can everyone who is keen on doing the fix themselves please write to me so i can make note of who you are and pass on the relevant information.

Thanks everyone for your patience in this. We are truly almost out of it now. Can't wait to get this done so we can move onto future plans!!

I've noticed tensions have been running high and i understand it completely. It certainly has been a frustrating situation. But please don't take it out on the people helping make all this happen. This has been an amazing community effort and has been so wonderful to see everyone band together and solve this situation as a group. Massive thanks to TK1337 and Milkbottlec for stepping up to help out with repairs and going way above and beyond. Massive thanks to Lajz for keeping the forum running smoothly. And to everyone for chucking in your thoughts to help get to the bottom of it all.

As for what actually went wrong here, unfortunately we don't really know. Could have been bad or fake parts, could have been bad workmanship putting the parts on. As for the design, we are almost 100% sure that the chosen parts were right and the design sound, but i guess its possible that they just weren't up for the job. On paper there was plenty of overhead in there. Its kind of impossible to say really. But hey, we've found a way around and the boards now work. Thats the main thing.

Now i imagine things are going to get a bit messy with packages all over the place so please make it easier for me and let me know the status of your stuff. First thing i need to know is everyone doing their own repairs.

Oh and there is a new firmware that is running very smoothly indeed. More on that soon.  Smiley

Thanks guys.

Barntech
legendary
Activity: 910
Merit: 1000
I wonder when USA repairs will start...
sr. member
Activity: 336
Merit: 250
erk
hero member
Activity: 826
Merit: 500
hero member
Activity: 602
Merit: 500

As I recall, the manufacturing issue at that time related to "some components" which had substandard versions used initially - before being rectified with better ones. Causing indeed a delay in the obtaining and shipping.

But I don't believe anyone has ever stated or confirmed that the "some components" referred to back then, are directly related to the components failing now.

Though, they may well be.  I just don't recall any actual statement of such.


I am by no means implying that the failing components now are related to the Nov statement, I am simply asking if BA is the company that Barntech is talking about in this statement.


Bit by bit it has become clear that this third party don't really know what they're doing. It frustrates the hell out of me. I really really wish i had not let crucial parts of this operation out of my hands as i believe we would certainly have shipped by now had we maintained control of the manufacture and done it here in Sydney. The wisdom of hindsight can be a real bitch sometimes.  Embarrassed I take full responsibility for taking the choice to work with these people. God i wish i hadn't. As i say, at the time it seemed like a good move. I am sorry for this. We have been seriously let down.

The cause for the latest delay is that we recently discovered that said third party had ordered largely substandard inappropriate substitute parts for our boards, not the ones we specified. We are lucky we found this out when we did. Going ahead with the manufacture with the wrong parts would have caused all sorts on unknown instabilities on the boards. People may well have received them sooner, but there would be a  large chance they would not work properly, not get decent hashrates, and perhaps not work at all, or break soon after being plugged in. Dealing with this problem after the boards had been made would have been a nightmare.


I am asking if it is in fact BA because of what Bobsag said today.

Barntech / bobsag, can you please confirm or deny this?


Drillbit / Bobsag3 they both had production runs through BlackArrow for their relative boards correct?

That is correct. They built my bitfury boards, and assembled the drillbit boards.

It seems that I am correct in my assumption that BA is responsible for the initial delays according to Barntech and Bobsag.

And erk this is all relevant info, by recognizing the missteps we can move forward. Knowing the facts is part of being an informed customer so finding out who has made what mistakes is how the learning process works.
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