Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 270. (Read 531298 times)

I'm also seeing 10x HW errors on the third board with my B3 S9. Been like that from the beginning.

Looks like it's a very common situation. Assuming that they didn't consistently place crappy boards in the third position, it's likely an airflow/design problem (as others have suggested). Good thing that the other boards compensate for the "bad" position.

But given that we're past batch 9, it's clear that Bitmain isn't interested in using our feedback to improve their design. This problem will never be fixed.

Not that it matters. Seems like their main focus is on controlling supply and managing the difficulty.

For a while now I've wished for competition to break Bitmain's current monopoly. But in retrospect, it's probably a good thing for little miners that a competitor has not emerged. If a real competitor surfaced now, Bitmain would just slaughter them in a price war, and the little guys (me included) would be crushed by the increased difficulty. In this scenario the halving drop off will likely be too short lived to be much help.

Thanks for this. I just got my S9 this week, and I'm happy with the hashrate, it's a great machine. Didn't notice that the third board had more HW errors than the others until I read this, but have checked and mine is like that too.

Pics or it didn't happen as they say in the less savory corners of the interwebs.  Seriously though, I'd like to see some pictures of that.

Im not suffering as much as you guys with regards heat, but its been pretty warm here in the UK last week.

Im building up a cheap cooling system that seems to work pretty well.
At least the first test worked really well im currently making it properly now the idea seems to work.
Not saying this is going to be of any help but might give you guys a few ideas.

I have my S9 in the server room but the A/C is only 3kW so I dont want to push any more miners in there as im adfraid it might break.
(I actually trashed the old A/C with five Spondoolies SP20's over night).
As the S9 looks more heat tempremental its staying in there. The S7's are all in my warehouse hidden away.

Right. I got two large van radiators off eBay. I got two Ford Transit ones.
I linked the two together with braded hose and sealed up all the connections using jubilee clips.
On the inside one I covered it with a box and left some round connectors on it, to suit flexible ducting that connects to the miners.

The outside one is mounted with a 230V fan to blow ambient air over it.
I then have a pump that pumps water through a copper tube with small holes, to spray water over the coil in front of the fan.
The discharge turns upwards and makes the water drip back down into a tray to re-pump over the coil.

I filled the radiators with water and used a central heating circulator to pump water between the outside and inside coil.
Gives a massive temp drop with the water spraying over the coil.

When the water heats up, dump it and charge the tank with fresh cold water.
In the UK im getting approx 15 Deg tap water.

Currently working on an Arduino with a temp sensor to monitor the water then dump when it gets warm.
Just a solenoid valve to dump with a simple ball cock to fill with cold water again.

Miners suck air from over the indoor coil which cools the incoming air significantly.
The adiabatic cooling to the outdoor coil really works.

Im hoping to build the thing properly in some stainless steel boxes and install it permanantly over the next few weeks.

yeah we dropped all gear down to 500 freq


 temps  are brutal

You're not kidding. I got alerts that hosted miners were overheating yesterday at 8AM. I went out to the shop early afternoon and ambient temps were 98F in the shade, and when I opened the big doors to get some air movement it actually got hotter.

That will come in handy for me. Been a real barn burner here in Midwest. Can almost cut air with a knife. And the temps are close to triple digits. Finally some relief this morning. Got woken up to some much needed rain. Will give this a shot. These commands in combination with a program that can monitor text on your screen.  So let's say I start the batch that lowers the freq when it gets to a set temp located in the part of screen I'm monitoring. Going to look into this a bit.  I've been stewing on how I would possibly accomplish this:). Haven't had time last week due to other projects going.  Would be fantastic if bitmain would allow three set freq for dif temps.  If second freq adjust doesn't allow the miner to stay below certain threshold it will resort to third set freq and reboot.  Sort of like backup pools.  Hint hint bitmain;)

Thanks again for the info

Best Regards
d57heinz

Scheduled task from a windows box:
https://bitcointalksearch.org/topic/m.10462772

With that you can change the freq too.  I am actually using it on one of my S9's to lower the freq mid-day when it is hotter and then go back to stock freq for the night later.  But you could use it to just restart cgminer (bmminer) if that was all you wanted to do.

Ok thank you. Wasn't sure if my board is not broken.

I think the 3rd board on the S9's are all producing more HW errors than the others. Most likely because of the heat and case design and air flow.
All of mine are like that and all the others I have seen are the same.

It seems that one of the board in my miner always start getting more HW errors than the rest. Anyone is experiencing that? For example now (chain 1: 18 HW, chain 3:28, chain 4 :220). Usually it runs fine for some time, but after it last board is getting much more errors. I just want to confirm weather I should try to get the board replaced or there is any other thing I could try?



Thank you for any advice

Does anyone have any info when they will be still available for ordering ? I didn't find related topic to post this question so sorry for off

Anyone tried to set up the miner so it would auto restart after lets say 12 hours? Trying to figure out how to do it but editing crontab doesn't seem to work as I would expect.

I couldn't access one of the two I got aswell. I waited for about 5 min to make sure it's fully booted then took a pin and pressed the reset button.  Make sure your not pressing the ip reporter button instead of reset.(looking at front reset on the right)  Hold it down for ten seconds.  About 5 sec in it should start to beep. Keep holding the whole 10.  Then after about 5 min. Shut it down and turn back on.  I was then able to access the miner.  It assigns it the first open ip by dhcp.

Best Regards
d57heinz

Mine was a bad BB board. they are sending me another. But I couldn't login to mine or hash.

I am having the same issue:

This is what I sent to Bitmain just know but hoping someone can help me before them.

I just recieved my S9 about 36 hours ago. I connect and hook it up like all my other miners before. I have had about 25 different Antminers. It took a bit to coneect to the network, I had to use different wires but it eventually connect, it ran for about 6 hours and stopped hashing, but stayed powered on. Now I cant get it back on my network with my other machines. I have reset my router and switches. I have tried to reset the miner by the button on the front and nothing works. The mach powers up and seemed to be working fine but it wont connect to the network nor will cgminer start. I have attached a YouTube video, I removed the front plate but have not disassembled the miner at all. I need to know what needs to be done. Do I need a new controller?


https://www.youtube.com/watch?v=mPBOCCsmc2k

any help would be appreciated

Hi folks.
Ive had an S9 running for three days now just wanted some feedback on a couple of things.
I run some S7's but have a few questions.

When booting the "Error" light blinks for a few minutes before the miner starts. Is this a normal boot up?

I run one hash card and the controller board on one PSU, then the other two hash cards on a second PSU.
PSU's are 1300W each.
At first I was getting numerous xxxx in the ASIC stats. I swapped the PSU's out with the S7's until I got a trouble free boot up.
Running in my server room at work cooled to about 18 Deg.

Any comments would be greatly appreciated, just while I get used to the new hardware.
Thanks folks.

when will be s9 available in the hashnest cloud mining market?

do you have a road plan for it?

Sometimes, but certainly not now.

Some ebayers get very  good coupons I just got one for 8% it expired  yesterday.

this is 2200 - 8% coupon =  2024   and I can get 1% off via ebates so -22 = 2002   and  I can get 6 months to pay it  at 0 %

so 2002 net cost and 6 months to pay with ebay protection and this was close to worth it yesterday.

Coupon is gone so it is not worth it.  But yesterday it was close to worth it for me.

http://www.ebay.com/itm/AntMiner-S9-B2-12-93TH-s-Running-11-1-11-6-Underclocked-Stable-/172280227864?

Bitman products produces profit after 10 months. An ebay one after 13-15 months. Or did I calculated something wrong?