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hmm, almost sounds like polyswitches tripping with all the dead boards.
Are there any polyswitches on these boards?

if so , anyone with a dead looking board try it again in the morning and see if it works.

Lets hope the assembly company didn't go ahead and use those cheap components anyway instead of the real ones..

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[kabopar]

I fell asleep and when I woke up I had a second board go dead on me.  It doesn't power up anymore.  Not sure what to do.

Chad

I guess the only thing that you can do now is to completely disconnect that board, let it cool down (edit: letting the polyswitches reset themselves, if they exist, sounds like a good idea), then try it again (ideally in an isolated environment with its own supply, pc etc.).  Do you have reasonable cooling?

Good luck

[chadtn]

I fell asleep and when I woke up I had a second board go dead on me.  It doesn't power up anymore.  Not sure what to do.

Chad

I guess the only thing that you can do now is to completely disconnect that board, let it cool down (edit: letting the polyswitches reset themselves, if they exist, sounds like a good idea), then try it again (ideally in an isolated environment with its own supply, pc etc.).  Do you have reasonable cooling?

Good luck

Right now the ambient temp is close to 0C.  The board is ice cold, but doesn't power up anymore.  It was sharing a 120mm fan with a second board.

Chad

[synapse]

I fell asleep and when I woke up I had a second board go dead on me.  It doesn't power up anymore.  Not sure what to do.

Chad

I guess the only thing that you can do now is to completely disconnect that board, let it cool down (edit: letting the polyswitches reset themselves, if they exist, sounds like a good idea), then try it again (ideally in an isolated environment with its own supply, pc etc.).  Do you have reasonable cooling?

Good luck

Right now the ambient temp is close to 0C.  The board is ice cold, but doesn't power up anymore.  It was sharing a 120mm fan with a second board.

Chad

Bugger.
i'd give it at least a few hours before declaring it totally dead.

[ryanb]

i am reporting back

i tried the dead boards now they have been off for 19 hours and the green light did not come on once i connected them the molex connection

[kabopar]

i am reporting back

i tried the dead boards now they have been off for 19 hours and the green light did not come on once i connected them the molex connection

Looks like these boards are dead.  Can anything be seen in a close inspection (like with a magnifying glass)?  Can you verify that power arrives at the pins of the Molex connector on the board?

[jml25]

Update from the overnight- two boards went zombie during the night. Was running 50:2:950. Running 52:2:850 and speeds are about 4 gh slower overall but have some errands to run today and want to minimize odds of them dying while I'm gone.

It took a full power down and reboot to get the zombies back.

[Zeek_W]

Are you US based or elsewhere?

Either way - great QC.

[erk]

Are you US based or elsewhere?

Either way - great QC.

What do you expect when you get boards made at some random Chinese mob to make a few bucks more profit. China would be right down on my list of places to outsource electronics manufacture to, I have opened up enough of their stuff off eBay from there to know what to expect. I would use Taiwan or Thailand if I couldn't get it made in Australia.

[techman05]

Update from the overnight- two boards went zombie during the night. Was running 50:2:950. Running 52:2:850 and speeds are about 4 gh slower overall but have some errands to run today and want to minimize odds of them dying while I'm gone.

It took a full power down and reboot to get the zombies back.

When you mean full power down do you mean that you turned off the power supply and brought it back up and  have a non green come back? That's one thing I haven't tried with the risk of killing my other board.

Anyone get a pm back from bobsaget yet. I sent one last night and and bob hasn't been as prompt as usual. I hope that means he's on the phone with barntech trying to get a proper response out before he  or barntech start trying to figure out whats going on.

[ryanb]

i sent barntech a pm yesterday about my dead board 3 out of 4 and no response so far

[jml25]

Update from the overnight- two boards went zombie during the night. Was running 50:2:950. Running 52:2:850 and speeds are about 4 gh slower overall but have some errands to run today and want to minimize odds of them dying while I'm gone.

It took a full power down and reboot to get the zombies back.

When you mean full power down do you mean that you turned off the power supply and brought it back up and  have a non green come back? That's one thing I haven't tried with the risk of killing my other board.

Anyone get a pm back from bobsaget yet. I sent one last night and and bob hasn't been as prompt as usual. I hope that means he's on the phone with barntech trying to get a proper response out before he  or barntech start trying to figure out whats going on.

The zombies had a green light the entire time. Stopping and restarting cgminer had them still as zombies. Controlling machine and psu were both deprived of power and restarted.

[techman05]

I hope we get a response soon. I started seeing unresponsive errors in cgminer and stopped it and powered down the boards. I haven't touched it so I'm not sure what it was displease with. Still green just unhappy.

The other board went out without a hell of warning just said zombie and cgminer said disabling thread and it was gone , at least that how I remember it.

[techman05]

I have 1 board on a 530 watt power supply controlling 2 4 pin fans. I can't think mine is under powered

[jml25]

Are you US based or elsewhere?

Either way - great QC.

If you're referring to my problem, exactly how many days did you expect them to run them for qc?
 I used them without issue for 12+ hours (minus the one board that wouldn't power via the miniplane, and again - I expect them to power it up and test it, all of which works fine via molex.) if they ran them longer than they did everyone here would be screaming bloody murder. As usual, gb organizers get second guessed for every breath they take and every word they say.

[jml25]

I have 1 board on a 530 watt power supply controlling 2 4 pin fans. I can't think mine is under powered

Nah, I suspect this is firmware or cgminer driver or a combination of both.

[Zeek_W]

Are you US based or elsewhere?

Either way - great QC.

If you're referring to my problem, exactly how many days did you expect them to run them for qc?
 I used them without issue for 12+ hours (minus the one board that wouldn't power via the miniplane, and again - I expect them to power it up and test it, all of which works fine via molex.

I mean they should 'work out of the box' plus the 'omg wait everyone, the scrolls don't work at all' thing is just great.

Wondering if my batch 1 board will be shipped with everyone elses (and arrive after the US ones - buy local LOL)

[jml25]

I mean they should 'work out of the box' plus the 'omg wait everyone, the scrolls don't work at all' thing is just great.

Wondering if my batch 1 board will be shipped with everyone elses (and arrive after the US ones - buy local LOL)

Sure they should - and how long are you willing to wait while they're tested to confirm that? This went from design to production in a handful of months- that's fast. Were you willing to wait longer for a more thoroughly tested product? Your previous posts on this thread suggest differently - in fact didn't you say you were tired of waiting and sold at least one board? 

[jedimstr]

For all of you who are waiting for some more information about the two primary issues people are seeing (green light dead/zombie, timeout errors with no hashing), the Drillbit Forums have a lot more info on it with the engineering guys jumping on and not just Barntech.

This quote is from: http://drillbitsystem.com/forum/index.php?topic=196.msg844#msg844

Hi everyone,

Just a note to say we're aware of these issues (no green LED & USB/timeout errors printed on the cgminer console), and we're looking into both. I'll post an update in this thread as soon we have a fix or some more information. In the meantime if anyone else is seeing these issues please post here to let us know.

- Angus

PS With regards to the USB errors, it does seem like many people are having success with unplug/replug or moving the Eights between ports. It may be worth experimenting to see if you can get hashing for now.

[timegrinder]

The CGMiner zombie thing requiring a full reboot of your system applies to the thumbs too as well as BES hardware.
With the Drillbit Thumbs running I occasionally leave the house to come back to find exactly 50% (1/2) of both my Thumbs and BES' have zombie'd and require a reboot.

This is on Windows, I haven't managed to test them for a long period on MinePeon or anything like that yet, so I expect it to be more a USB/driver issue than hardware fault (Though I'm neither a hardware or software engineer, thats just how it seems to me with the reboot fixing it, power cycling /replugging the devices doesn't so its definitely my PC thats effected by it)