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Topic: A4 Dominator - Pre-Order Group Buy - 280mh, roughly 1000w, $1800 + shipping - page 35. (Read 122594 times)

hero member
Activity: 868
Merit: 517
After reading the horror posts here and elsewhere.... I'm relying on a hunch that a few box fans to help get chip temps down may be able to help the avoid restart issues.

I am not expert but my A2s did not have this problem due to much bigger tower chassis and temps are manageable. This new shoebox like chassis design definitely has not been thought through and has become a heat magnet... and it is serious enough to offline boards.

I have discussed with my ISP on my batch of 6 x A4s arriving at their DC next week, and perhaps paying attention to where the A4s are located in the DC to get lowest ambient temps, and getting box fans for good measure to further aid cooling of chip temps.

If all that fails.... let me know where is the tallest bridge, so that I can contemplate jumping off it ...  Huh

I am running box fans with my A4's and does not seem to help.  My temps according to the miner have never gotten high since the ambient temps where the miners is quite cool this time of year where I run the miners.  So I don't think it is temp related.
hero member
Activity: 952
Merit: 508
After reading the horror posts here and elsewhere.... I'm relying on a hunch that a few box fans to help get chip temps down may be able to help the avoid restart issues.

I am not expert but my A2s did not have this problem due to much bigger tower chassis and temps are manageable. This new shoebox like chassis design definitely has not been thought through and has become a heat magnet... and it is serious enough to offline boards.

I have discussed with my ISP on my batch of 6 x A4s arriving at their DC next week, and perhaps paying attention to where the A4s are located in the DC to get lowest ambient temps, and getting box fans for good measure to further aid cooling of chip temps.

If all that fails.... let me know where is the tallest bridge, so that I can contemplate jumping off it ...  Huh

Well if you think temps are a factor, here are mine; Mine are all between 46c to 50C and I see board drops.
legendary
Activity: 1834
Merit: 1080
---- winter*juvia -----
After reading the horror posts here and elsewhere.... I'm relying on a hunch that a few box fans to help get chip temps down may be able to help the avoid restart issues.

I am not expert but my A2s did not have this problem due to much bigger tower chassis and temps are manageable. This new shoebox like chassis design definitely has not been thought through and has become a heat magnet... and it is serious enough to offline boards.

I have discussed with my ISP on my batch of 6 x A4s arriving at their DC next week, and perhaps paying attention to where the A4s are located in the DC to get lowest ambient temps, and getting box fans for good measure to further aid cooling of chip temps.

If all that fails.... let me know where is the tallest bridge, so that I can contemplate jumping off it ...  Huh
legendary
Activity: 801
Merit: 1000
Not getting any MH/s activity with a miner running the new 1.0.3 firmware, other miners on old firmware are still going for it with the drops.

ferk!  Angry

That's a real shame. And on the older firmware how much are you getting? 230-250Mh/s?

Are there any updates from inno? Are they still replying to this thread?

This is getting out of hand real fast..

Other miners run at near enough 280 to start with and drop off to 170ish average (perhaps one blade shuts down and the other continues due to less heat)

Seeing others running 1.0.3 fine i think its best to try re-write the firmware. Can I ask the chap who's got it going successfully what he mounted the boot files with? Cheers
legendary
Activity: 1109
Merit: 1000
My Batch 2 A4's running V1.0.3 have been stable for almost a week, no dropped boards. Still see restarts though.
Running a test now comparing nicehash BTC returns against litecoinpool converted to BTC to see which has better payout.
legendary
Activity: 3780
Merit: 1418
Is there another thread where someone from inno is answering questions.  Emailed them through their business with no reply.  Is anyone here in contact with inno?
hero member
Activity: 868
Merit: 517
v1.0.0 dropped a board this morning, v1.0.3 had one board hashing 6mh, but had not figured out it needed to restart to correct this.  Looking at the pool chart looks like v1.0.0 had been this way for most of the night, the v1.0.3 had only been in that state for a short time.  Not sure if I had let it go if it would have corrected it by restarting. I manually restarted both miners.

So I will let these run for most of the day in this configuration.  Then I think I will move pools and leave them with the split firmware and compare on a multipool for a day or two and see how that goes so I can compare the two versions of firmware there.
legendary
Activity: 3038
Merit: 6194
Meh.
Not getting any MH/s activity with a miner running the new 1.0.3 firmware, other miners on old firmware are still going for it with the drops.

ferk!  Angry

That's a real shame. And on the older firmware how much are you getting? 230-250Mh/s?

Are there any updates from inno? Are they still replying to this thread?

This is getting out of hand real fast..
hero member
Activity: 868
Merit: 517
I just saw over on the Avalon thread that the Avalon/Canaan manufacturer provided 2 sample A7's to two of the communities lead developers here on BCT so that they could develop the software for the community for the brand new A7.  That is what I call SMART. 

We have several well known A2 developers here on BCT, and at least 1 well known Titan software guru that would be ideal candidates to have Inno send a "demo" A4 to so that the community development can begin.

If the Avalon/Canaan company can do this I don't see why Inno doesn't follow suite and do the same.  It would be a very smart move and would help get some of these issues with the A4 under control that much faster.  Inno I hope you are paying attention.  If you would like input from people here we can tell you who the guru's are that supported the A2, and the guru who currently supports the KNC Titan's.  If you get sample miners in their hands ASAP things will start to happen for the A4 and the community will grow. 

Please give this some consideration. 
hero member
Activity: 952
Merit: 508
Another board drop, this time on the v1.0.0.  It appeared that the miner attempted to restart, but was unable to bring the board back online.  Strangely enough I see the v1.0.3 miner also restarted at about the same time, but it did not appear to drop a board, and came back up with all the boards.  So I don't know what spurred the two miners to start bouncing at the same time unless there was a network issue or something.

So I will continue to monitor and report what I see and make a decision on Friday on the new firmware vs old firmware.  Then I will start doing some testing on a multicoin pool.



I think its completely random, my 1.0.0T A4 has dropped cards 4 times in the last 24 hours when previously it ran for >3 days without an issue.

legendary
Activity: 801
Merit: 1000
Not getting any MH/s activity with a miner running the new 1.0.3 firmware, other miners on old firmware are still going for it with the drops.

ferk!  Angry
hero member
Activity: 868
Merit: 517
Another board drop, this time on the v1.0.0.  It appeared that the miner attempted to restart, but was unable to bring the board back online.  Strangely enough I see the v1.0.3 miner also restarted at about the same time, but it did not appear to drop a board, and came back up with all the boards.  So I don't know what spurred the two miners to start bouncing at the same time unless there was a network issue or something.

So I will continue to monitor and report what I see and make a decision on Friday on the new firmware vs old firmware.  Then I will start doing some testing on a multicoin pool.

member
Activity: 97
Merit: 10
If they would just opensource the software I would seriously consider buying one knowing that better software was on the way. As it stands Im worried that by the time they have stable software the network diff will have tripled.

Difficulty for LTC was at 48,913 on October 16 and looks to be at ~65,000 on the next change.  As it stands now, with more difficulty increases on the way, ROI is likely already gone mining LTC, based on current A4 pricing, if you start mining today (unless you have free power).
http://www.vnbitcoin.org/detailcalculationltc.php?name=LiteCoin_Mining_Rig&startdate=2016-11-24&costperunit=2000&wattperhour=1100&gigahazarate=260000&daytoincrease=3&testlopfirst=2&diffincrement=0.6312&bitcoinperdollar=3.88&electriccostinput=.1&begindifflevel=61422

I would expect the Thanksgiving promo to continue indefinitely...
sr. member
Activity: 338
Merit: 251
If they would just opensource the software I would seriously consider buying one knowing that better software was on the way. As it stands Im worried that by the time they have stable software the network diff will have tripled.
hero member
Activity: 868
Merit: 517
Cheesy i hope this is true. as i like to tweak the setting and solve board drops.

But strange thing here is i got my answer this week stating No Opensource in the future ... so could innosilicon shine a light on this ?


Inno told us here they plan to opensource it.  So we will have to wait and see when that happens.

My v1.0.0 dropped a board today and had to go through the restart routine.  Seems like we are alternating board drops between the two versions at this point.  Average hash rate between the 2 miners for last 24 hours is 252-253mhs on Litecoinpool.  So very little difference between the two versions I am running for hash rate.  

I have to try and keep tabs on the miners to catch the board drops.  The miner may try to restart to clear the board issue, but it doesn't fix it and you can lose a lot of hash time until you catch it and have to restart it.

I am glad to hear someone on here saying they are not having any issues.  I wish that were the case with me.  Granted the v1.0.0 and v1.0.3 are far more stable than v1.0.2, but the miners still have to be watched for board drops and manual intervention is required.  I may try to move over to Prohashing on Friday to see how badly the miners behave on a multicoin pool where they tend to get their feathers ruffled pretty badly.
newbie
Activity: 17
Merit: 0
 Cheesy i hope this is true. as i like to tweak the setting and solve board drops.

But strange thing here is i got my answer this week stating No Opensource in the future ... so could innosilicon shine a light on this ?
hero member
Activity: 952
Merit: 508

Opensource ? i would like to hope so but innosilicon has no intensions to opensource as i asked them frequently .


...and boom goes the dynamite


Thanks for your kindness! We've decided to open source the software after internal discussion. Please stay tuned.

newbie
Activity: 17
Merit: 0
Just a though guys.

Why would you try to reset with a PDU if you could easily just kill cgminer and after restart check if boards came back if not kill cgminer again untill all board are back online .. i have had this running with batch 2 and it worked almost all the time flawless.

ps. for board drops i used the cgminer api to detect.

Edit:
Opensource ? i would like to hope so but innosilicon has no intensions to opensource as i asked them frequently .


hero member
Activity: 952
Merit: 508
so to summarize....

Batch 1 - suppose to be the fastest chip but boards dropping. v.1.0.0

Batch 2 - with slower chips but boards still dropping. New firmware to fix board dropping. v.1.0.0 now replaced by v.1.0.1. Still no improvement to boards dropping and frequent restarts. v.1.0.3 released.

Batch 3 - new batch with newest firmware v.1.0.3..... some improvement but only 240MH/s instead of advertised 280MH/s?

Has anyone running an A4 without any problems whatsoever?

Batch 1 - suppose to be the fastest chip but boards dropping. v.0.0.0

Batch 2 - different hardware with slower chips but boards still dropping. New firmware to fix board dropping. v.1.0.0(T) now replaced by v.1.0.1. Still no improvement to boards dropping and frequent restarts. v.1.0.3 released.

Batch 3 - new batch with newest firmware v.1.0.3..... some improvement but only 240MH/s instead of advertised 280MH/s?



Put some corrections in your summary but that about sums it up.

In regards to your question: I don't think there is a single A4 owner without an issue right now but as it stands today I would still purchase mine again.

I'm waiting for the open source software that was promised so people can really start fixing these things.

legendary
Activity: 3780
Merit: 1418
This is starting to look really bad unfortunately.  Has anyone contacted inno to see what the latest they have in regards to fixing this disaster.  I would rhink they would be privy to this forum and would start doing some damage control but nope, looks as though they are going the way as almost every other hardware manufacturer, real shame, was excited when these were coming out  Undecided
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