A4 Dominator - Pre-Order Group Buy - 280mh, roughly 1000w, $1800 + shipping

[DebitMe]

It does look like Prohashing optimized something for the A4's as mine has been consistently at 280 to 290 for the past 2 days.  Very happy with the new results.  Thank you Inno.

I am on Prohashing and I do not see the hashrate you are getting.. Do you mind sharing your settings that are getting you a stable 280-290? Thanks!

Ehh, looks like I jinxed it and spoke too early.  Back down to averaging 220 ish, maybe a little less.

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[kurbeks]

Thought it's fake but they placed some placeholder on Bitmain's chinese site - https://shop.bitmain.com/productDetail.htm?pid=00020161229040715306ygMSJQLh06C0

[loulou65]

Hi everybody,

And thank's for your help.

I can't download the firmware by this link :

https://www.dropbox.com/s/9umhsbtky6t1c6j/2.0.2beta.rar?dl=0

I tried several times, by  different Internet connection and different speed 8Mo SDSL -> 100Mo Fiber...
The file block at 49,83%... each time !

Please help !

Can you take me a different link please ?

Thank you
@+

[firehawk71]

Hi everybody,

And thank's for your help.

I can't download the firmware by this link :

https://www.dropbox.com/s/9umhsbtky6t1c6j/2.0.2beta.rar?dl=0

I tried several times, by  different Internet connection and different speed 8Mo SDSL -> 100Mo Fiber...
The file block at 49,83%... each time !

Please help !

Can you take me a different link please ?

Thank you
@+

I will upload a copy for you.. Going to put it in zip format instead of RAR.

[loulou65]

Thank you firehawk71 !

I waiting for your upload.

Bye @+

[kurbeks]

Hi didn't read response from firehawk71. But here is also upload - https://failiem.lv/u/8uk29mwf

Hope you don't need full ISO and can make it by yourself.

[loulou65]

Thank you kurbeks !

I downloaded the file all is ok.

Really, Thank you.

Bye @+

[kurbeks]

welcome buddy

[Eyedol-X]

I've ordered a glue gun and the appropriate flexible adhesive to re-secure the hash board before shipping. I should be shipping the jig to the next person on Monday, Tuesday at the latest.

I have an idea that I may be able to do that should better secure the card within the Jig and will evaluate that option this weekend.

For those interested, here is the performance after 29 hours on the B3 reflash @ Prohash

Running Strong!

I know the date is wrong in these graphics, haven't taken the opportunity to correctly set it.

Well Sadly, I may have spoke too soon.

My A4 ran without a hiccup for over 5 days.

Today I shut it down, packed it up and took it to my remote site with better cooling for its full time placement.

I was gonna get a screen cap showing it running for over 5 days but forgot before I shut it down.

Transported the A4 and set it up at new location and it literally runs for 5 minutes and then reboots itself.

The only thing that has changed in this transition is the PSU but the same (2880) was previously running 2 s7's and now is running 1 S7 plus this A4, the S7 is doing fine.

Cards aren't dropping and this whole experience may be coincidence or maybe the PSU is having an issue as its the only thing that changed but either way.... more issues for me to deal with.

While I was typing this I just witnessed it reboot itself again.

That's the 6th reboot in about 30 minutes.

I'm pretty upset right now as this angers me more than words can describe so right now this is just the facts. I will share my thoughts about this later.

Same A4, Same Pool, Same Settings, different PSU and its rebooting every 5 minutes.

My guess its the PSU so I'm going to approach it from that standpoint.

In the interim this thing is probably going to hash upwards of a few days like this with 5 minute reboots... maybe it will magically start working? Who knows.

[crackfoo]

Well Sadly, I may have spoke too soon.

My A4 ran without a hiccup for over 5 days.

Today I shut it down, packed it up and took it to my remote site with better cooling for its full time placement.

I was gonna get a screen cap showing it running for over 5 days but forgot before I shut it down.

Transported the A4 and set it up at new location and it literally runs for 5 minutes and then reboots itself.

The only thing that has changed in this transition is the PSU but the same (2880) was previously running 2 s7's and now is running 1 S7 plus this A4, the S7 is doing fine.

Cards aren't dropping and this whole experience may be coincidence or maybe the PSU is having an issue as its the only thing that changed but either way.... more issues for me to deal with.

While I was typing this I just witnessed it reboot itself again.

That's the 6th reboot in about 30 minutes.

I'm pretty upset right now as this angers me more than words can describe so right now this is just the facts. I will share my thoughts about this later.

Same A4, Same Pool, Same Settings, different PSU and its rebooting every 5 minutes.

My guess its the PSU so I'm going to approach it from that standpoint.

In the interim this thing is probably going to hash upwards of a few days like this with 5 minute reboots... maybe it will magically start working? Who knows.

Network would be different as well. Might be useful to do some analyzing of connection latency as well. I'm not sure how the A4 work but perhaps if it thinks there is network issues it reboots as well?

[kurbeks]

I also vote on network. Had similar issue just yesterday.

So basically all started 3 days ago. Was happily minning, when internet went down. Turns out ISP antenna broke during storm, and as a normal Eastern Europe company nobody works during evening and etc. So that crap was fixed next and broke down again after 4 hours. ANd finally it got fixed next day. So until i went to sleep miner did random restarts sometimes 10 mins apart, sometimes one in hours. Internet on computer also was wokring like good, good and then started to lag.  Guess they or it itself fixed over night so i had like one small restart today (hash spike didnt even go to 0 in MRR, oposed to yesterday's drops where it was like 3 minutes not hashing.).

P.S. can try doing hard restart, turning PSU off. But it didn't help this time. Helps with dropped cards, if it happens.

[Eyedol-X]

Well Sadly, I may have spoke too soon.

My A4 ran without a hiccup for over 5 days.

Today I shut it down, packed it up and took it to my remote site with better cooling for its full time placement.

I was gonna get a screen cap showing it running for over 5 days but forgot before I shut it down.

Transported the A4 and set it up at new location and it literally runs for 5 minutes and then reboots itself.

The only thing that has changed in this transition is the PSU but the same (2880) was previously running 2 s7's and now is running 1 S7 plus this A4, the S7 is doing fine.

Cards aren't dropping and this whole experience may be coincidence or maybe the PSU is having an issue as its the only thing that changed but either way.... more issues for me to deal with.

While I was typing this I just witnessed it reboot itself again.

That's the 6th reboot in about 30 minutes.

I'm pretty upset right now as this angers me more than words can describe so right now this is just the facts. I will share my thoughts about this later.

Same A4, Same Pool, Same Settings, different PSU and its rebooting every 5 minutes.

My guess its the PSU so I'm going to approach it from that standpoint.

In the interim this thing is probably going to hash upwards of a few days like this with 5 minute reboots... maybe it will magically start working? Who knows.

Network would be different as well. Might be useful to do some analyzing of connection latency as well. I'm not sure how the A4 work but perhaps if it thinks there is network issues it reboots as well?

Network is different yes but I used this same A4 onsite for weeks before I reflashed it to B3, ran it for a week at my home, took it back, now this.

Nothing has changed network side and I honestly don't believe its the PSU.

I just got back to my computer and literally it runs for just over 5 minutes and then reboots itself, doesn't make any sense. It's like a timer is kicking it to restart even though its hashing normally.

Something is up with the Pi is my guess or the image the system the SD card has.

I was SSH Into it during one of its reboots and got this. Then it disconnected me.

[kurbeks]

Did you do hard restart. By shutting down PSU and unplugging it? Just to be sure

[Eyedol-X]

Did you do hard restart. By shutting down PSU and unplugging it? Just to be sure

Already did that before I left the site, did it twice in fact.

[kurbeks]

Guess you have to msg Inno or someone smarter than me with Pi.

[Eyedol-X]

Network is different yes but I used this same A4 onsite for weeks before I reflashed it to B3, ran it for a week at my home, took it back, now this.

Nothing has changed network side and I honestly don't believe its the PSU.

I just got back to my computer and literally it runs for just over 5 minutes and then reboots itself, doesn't make any sense. It's like a timer is kicking it to restart even though its hashing normally.

Something is up with the Pi is my guess or the image the system the SD card has.

I was SSH Into it during one of its reboots and got this. Then it disconnected me.

Something is definitely up with 2.0.2 or the image I have installed.

I have it set to manual start and the miner keeps auto starting itself while I'm trying to work on the pi. If i'm not watching it, once it gets to about 5 mins it reboots itself.

I guess I need to put a fresh copy on another SD Card and try that but for now I'm trying to figure out why its doing this.

[kurbeks]

Can try reseting PI and also reformating SD card adding new image.

[Eyedol-X]

Network is different yes but I used this same A4 onsite for weeks before I reflashed it to B3, ran it for a week at my home, took it back, now this.

Nothing has changed network side and I honestly don't believe its the PSU.

I just got back to my computer and literally it runs for just over 5 minutes and then reboots itself, doesn't make any sense. It's like a timer is kicking it to restart even though its hashing normally.

Something is up with the Pi is my guess or the image the system the SD card has.

I was SSH Into it during one of its reboots and got this. Then it disconnected me.

Something is definitely up with 2.0.2 or the image I have installed.

I have it set to manual start and the miner keeps auto starting itself while I'm trying to work on the pi. If i'm not watching it, once it gets to about 5 mins it reboots itself.

I guess I need to put a fresh copy on another SD Card and try that but for now I'm trying to figure out why its doing this.

Think I figured it out.

Had to SSH into the PI and clear the tmp directory which contained a cgminer.lock file

Once I cleared that, it appears to be running normally again... almost 10 30 mins now without a reboot and prior it would reboot around 5 minutes like clock work.

Owners of the A4, I recommend you take note of this because if it happened to me, its bound to happen to you -- All I did was power it off and move it.

[kurbeks]

Thanx for this. Bookmarked this

[citronick]

Network is different yes but I used this same A4 onsite for weeks before I reflashed it to B3, ran it for a week at my home, took it back, now this.

Nothing has changed network side and I honestly don't believe its the PSU.

I just got back to my computer and literally it runs for just over 5 minutes and then reboots itself, doesn't make any sense. It's like a timer is kicking it to restart even though its hashing normally.

Something is up with the Pi is my guess or the image the system the SD card has.

I was SSH Into it during one of its reboots and got this. Then it disconnected me.

<snipped>

Something is definitely up with 2.0.2 or the image I have installed.

I have it set to manual start and the miner keeps auto starting itself while I'm trying to work on the pi. If i'm not watching it, once it gets to about 5 mins it reboots itself.

I guess I need to put a fresh copy on another SD Card and try that but for now I'm trying to figure out why its doing this.

Think I figured it out.

Had to SSH into the PI and clear the tmp directory which contained a cgminer.lock file

Once I cleared that, it appears to be running normally again... almost 10 30 mins now without a reboot and prior it would reboot around 5 minutes like clock work.

Owners of the A4, I recommend you take note of this because if it happened to me, its bound to happen to you -- All I did was power it off and move it.

Questions:
1. what is the function of cgminer.lock?
2. what event possible triggers occurrence this cgminer.lock?
3. do we need to clear tmp directory regularly?