Topic: [CLOSED] ASICMiner Prisma 1.4th/s - 1.47 BTC - page 5. (Read 49842 times)

Why does your pool hash rate only show 95.5+ GH/s? I take it thats not the prismas?

Im glad its working for you. I was just so frustrated trying it the other way with all those steps, and to get the same result each time. So I tried it that way, and about the tenth time it worked, hashing away now for a little over 22 hours without problems. I removed any arguments in the Startup extra commands (rc.local) box so im assuming its hashing at 230 and both units are around 1450 GH each with an error rate of about 5% total.

Strange but might be true about the restart button spam , sometimes i get up to 300gh/s , sometimes 500gh/s , but now it got up to incredible 1200 gh/s .. I guess i won't touch it for now and leave it so i can enjoy the hairdryer sound for a while.
Thanks for the advice man.

I'm having quite similar to yours.
This log is from start of cgminer:

 [2014-11-16 20:15:33] Loaded configuration file /var/www/minera/conf/miner_conf.json
 [2014-11-16 20:15:33] USB scan devices: checking for BET devices
 [2014-11-16 20:15:33] RES: thread starting
 [2014-11-16 20:15:33] BET looking for and found BET 10c4:ea60
 [2014-11-16 20:15:33] USB lock blockerupter 1-5
 [2014-11-16 20:15:33] RES: blockerupter (1:5) lock=1
 [2014-11-16 20:15:33] USB res lock blockerupter 1-5
 [2014-11-16 20:15:33] RES: blockerupter (1:5) lock ok=1
 [2014-11-16 20:15:33] USB init - BET device 1:5 usbver=0110 prod='CP2102 USB to UART Bridge Controller' manuf='Silicon Labs' serial='0001'
 [2014-11-16 20:15:38] BlockErupter missing board: 0, received a6
 [2014-11-16 20:15:38] BlockErupter found Board: 1
 [2014-11-16 20:15:38] BlockErupter found Board: 2
 [2014-11-16 20:15:38] BlockErupter found Board: 3
 [2014-11-16 20:15:38] BET0: BlockErupterRead (amt=0 err=-7 ern=25)
 [2014-11-16 20:15:38] blockerupter: Read (0/1)
 [2014-11-16 20:15:38] BlockErupter missing board: 4, received 00
 [2014-11-16 20:15:38] BET0: BlockErupterRead (amt=0 err=-7 ern=25)
 [2014-11-16 20:15:38] blockerupter: Read (0/1)
 [2014-11-16 20:15:38] BlockErupter missing board: 5, received 00
 [2014-11-16 20:15:38] BET0: BlockErupterRead (amt=0 err=-7 ern=25)
 [2014-11-16 20:15:38] blockerupter: Read (0/1)
 [2014-11-16 20:15:38] BlockErupter missing board: 6, received 00
 [2014-11-16 20:15:38] BET0: BlockErupterRead (amt=0 err=-7 ern=25)
 [2014-11-16 20:15:39] blockerupter: Read (0/1)
 
These are going for another few seconds and then it goes to :


 [2014-11-16 20:15:39] USB: BET0 read1 buffering 12 extra bytes
 [2014-11-16 20:15:39] BET0: Unexpected value 00 received
 [2014-11-16 20:15:39] USB: BET0 read1 buffering 11 extra bytes
 [2014-11-16 20:15:39] BET0: Unexpected value 00 received
 [2014-11-16 20:15:39] USB: BET0 read1 buffering 10 extra bytes
 [2014-11-16 20:15:39] BET0: Unexpected value 00 received
 [2014-11-16 20:15:39] USB: BET0 read1 buffering 9 extra bytes
 [2014-11-16 20:15:39] BET0: Unexpected value 00 received
 [2014-11-16 20:15:39] USB: BET0 read1 buffering 8 extra bytes
 [2014-11-16 20:15:39] BET0: Unexpected value 00 received
 [2014-11-16 20:15:39] USB: BET0 read1 buffering 7 extra bytes
 [2014-11-16 20:15:39] BET0: Unexpected value 00 received
 [2014-11-16 20:15:39] USB: BET0 read1 buffering 6 extra bytes
 [2014-11-16 20:15:39] BET0: Unexpected value 00 received
 [2014-11-16 20:15:39] USB: BET0 read1 buffering 5 extra bytes

I have found this in the middle :

 [2014-11-16 20:15:39] Add BlockErupter with 5/32 Boards
 [2014-11-16 20:15:39] BET0: Set Clock to 120 MHz
 [2014-11-16 20:15:39] BET0: Set Diff Bits to 1
 [2014-11-16 20:15:39] BET0: Set nTime Rolling to 180 seconds

Why its setting clock to 120 mhz ? is its normal ?
I have tried putting --bet-clk 23 option , but never know if its works or not ...

I see you have the rpi B model with a case, I have the B+ no case, my temps were always around 84.00F max usually always around 80.00F, last night I logged into the pi and overclocked the pi's frequency to 450mhz without upping the voltage, just to see if anything changed with the hash rates or to see if the BET0 or the new BET1 errors I was getting on reboot/restart would go away. Since I overclocked it the only thing ive noticed is the slight temp increase to 88.00F and a slight, probably just by chance, lower rejection rate, not enough lower rejection rate to say it solved anything. But I have never seen my pi B+ get anywhere close to some of those temps you had. Do you think with the case on it maybe trapping some heat inside it? In two of your pictures I noticed one said 102.00F and the other said 104.00F. Was that before the fans? I have my pi sitting next to one prisma, right below them on the next shelf down is a window box fan blowing air up to keep the bottom of the prismas cool. Also two fans per prisma, push/pull, and one fan between the prismas blowing air down the middle of them. So I guess I was getting lucky with the placement of the pi as its getting cool from the box fan below it. I just wish we had a way to get the true temps of these prismas while running. I have a laser thermal gun, but the temps are sporadic depending where I point it at. The exhaust fans are around 120F on both units consistently. I am running them right now with no overclock as im worried because of the pictures posted. Better safe than sorry. Does anyone know if there is a way to find the true temps these prismas are running at? Are they even capable of giving us that information?
[/quote]

 with garage closed the rpi runs 105-107 f  with garage open it runs  78 to 90 f depending on the clock.

I have added ceramic tiles under the prisma just in case.
I still can't seem to tame the temps with the  door shut.  I have clocked down to freq 190 and door shut I get to  1050 watts from 990 open in just a few hours.


_______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ ________________________

On the oc side  with the colder 40f weather  and door open gear is nice. This is freq 260

hash at 1545 gh watts at 1250    using top end evga 1600 p2 psu    so these are kind of as good as it gets for power


in f and c temps are great.

in f


in c



ceramic tiles over a piece of laminate flooring


low watts with door cooling in effect  freq 260 hash 1545 errors 6.96%   1216/1545 = 0.787 at the meter plug



high watts with door cooling in effect freq 260 hash 1545 errors 6.96% 1254/1545 = 0.811 at the meter plug

yes rpi's like it cool.  I use 2 fans to keep it cool


[/quote]

I see you have the rpi B model with a case, I have the B+ no case, my temps were always around 84.00F max usually always around 80.00F, last night I logged into the pi and overclocked the pi's frequency to 450mhz without upping the voltage, just to see if anything changed with the hash rates or to see if the BET0 or the new BET1 errors I was getting on reboot/restart would go away. Since I overclocked it the only thing ive noticed is the slight temp increase to 88.00F and a slight, probably just by chance, lower rejection rate, not enough lower rejection rate to say it solved anything. But I have never seen my pi B+ get anywhere close to some of those temps you had. Do you think with the case on it maybe trapping some heat inside it? In two of your pictures I noticed one said 102.00F and the other said 104.00F. Was that before the fans? I have my pi sitting next to one prisma, right below them on the next shelf down is a window box fan blowing air up to keep the bottom of the prismas cool. Also two fans per prisma, push/pull, and one fan between the prismas blowing air down the middle of them. So I guess I was getting lucky with the placement of the pi as its getting cool from the box fan below it. I just wish we had a way to get the true temps of these prismas while running. I have a laser thermal gun, but the temps are sporadic depending where I point it at. The exhaust fans are around 120F on both units consistently. I am running them right now with no overclock as im worried because of the pictures posted. Better safe than sorry. Does anyone know if there is a way to find the true temps these prismas are running at? Are they even capable of giving us that information?

I tried the logging and debug and I keep getting these errors:

 [2014-11-16 05:28:49] BET0: Nonce 00040000 from board 16, asic 13 for work 42
 [2014-11-16 05:28:49] BET0: Nonce Fix Failed

 [2014-11-16 05:29:26] ICA looking for AMU 10c4:ea60 but found 1d6b:0002 instead

 [2014-11-16 05:31:14] blockerupter: Read (0/1)

 [2014-11-16 05:31:14] BET0: Unexpected value 00 received
 [2014-11-16 05:31:14] BET0: BlockErupterRead (amt=0 err=-7 ern=25)

The BET0 error should be fixed with latest update from AM as of yesterday.

I'm thinking that I have bad uart adapter.

Also I asked in this thread earlier if anyone got the prismas running minera to work with mobileminerapp on a cell phone as I had no luck running it. Well once again user error on my part. In the settings in minera where you enter your API key from mobileminer and email address you signed up with thats where I made the mistake. The API key I copy and pasted, so my error was my email address. http://i.imgur.com/GqdpDin.png instead of gmail.com I entered gnail.com and I just kept overlooking the obvious. Now mobile miner works on my cell and I can now check stats, change pools. start, stop and restart the miners from anywhere. Here is a screenshot of it from my cell phone http://i.imgur.com/7GkB19D.jpg If anyone has any problems setting it up just look at the obvious first, as I overlooked it. It's very simple to setup and get going. If anyone needs help with it just ask, I will try to do what I can. Also everyone with the BET0 problems, I just refreshed my setup last night and I had the BET0 and then a BET1 problem. All I did was just hit restart miner under miner in minera, now it did take about 10 trys, but it works, so you dont have to keep changing back and forth from Cgminer (rockminer fork) and Cgminer (asicminer fork) just keep spamming the restart button. It works and seems to be a faster way then doing all those other steps.

yes rpi's like it cool.  I use 2 fans to keep it cool

Can you both try running with logging enabled and debug enabled? You should get a lot more info, and maybe a hint at what's going on.

Yes, this is without a doubt the RPI temp. The block erupter driver does not provide an interface for pulling temperatures and I'm not certain if there are even temperature sensors on the Prisma Board.  I beleive the minera developer added temperature display for the RPI as RPIs have been known to reboot at high temps.

I've tried exactly the same thing and have had the same no hash results.

Thanks to everyone who has tried to help.

Many many thanks to CrazyGuy who has been amazing in his support  _{even though I used a different group-buy}

I agree that the temps are in fact from the RPI. Here is why I think so, anyone please correct me if im wrong. Look at this picture where it says BET0 and BET1. I have both prismas on a single usb to uart adapter into the RPI B+. Here is the pic with the info circled in red http://i.imgur.com/agQ5sob.jpg So the info minera is reporting in my pic of 88.00F is without a doubt the RPI B+...I think

 yep the bottom board is hottest ,  but that board is not wood it is a laminate much more heat resistant then wood.

   I am going to use some ceramic tiles for more heat protection. ----------- I have a lot of kevlar but can't find it.
 My problem with this unit is I don't think I can leave it unattended.----garage door shut for a few days on end.
 I have some s-3's that I leave alone for weeks.
 I just check to see if they are hashing.

So far I can't keep the unit cool enough without have the garage door open.  even with my lower clocks I shut the door the cold air does not come in the hot air stays in I get thermal creep and power creep.   Still trying to get it to stay under 1000 watts without an open garage door.  So far it reminds me of the gpu's running on bitminters client .  I would get thermal creep and power creep.  Then shut downs since they were pc's.  

this is decent gear

http://documents.ekmmetering.com/EKM-25IDS-Spec-Sheet.pdf


http://www.ekmmetering.com/ekm-metering-products/electric-meters-kwh-meters.html


you can build a test box  with 2 sockets and 1 plug.  We had a few diy boxes a while back in an old amp / recording studio.  We like to know what an amp would pull on transient loads so we did not trip breakers when giving shows.  But that was a while back.

I'd get that thing away from anything combustible, whether you're home or not.
If it blows a gasket, you run the risk (whether you're home or not) of lighting all that nice kindling that surrounds it.
In contrast, if that S3 fries crispy, the ignition source stays inside it's case and likely would just be a smoke bomb.

Blocking that square hole in the back also helps force all the air across the heat sinks.
I used aluminum foal tape (not cloth, fiberglass, or plastic duct tape). As in my previous pics. Cheap at the hardware store.

Remember 70% of the heat is dissipated by the heat sinks (internal), and the remaining 30% is dissipated from the visible components and board.
Assuming you're clocked @ 200 and drawing ~1000W and assuming the power supply is 92% efficient.
The Prisma is dissipating 920 watts total.
That means 644 watts are being dissipated by the heat sinks (internal) and 276 watts are being dissipated component side.
BTU = watts * 3.15.

The downward facing hashing board is therefore dissipating 217.35 BTU (276W/4 * 3.15) continuously 24/7 into the wood shelf it's sitting on.

And is why we mount ours on metal racks vertically.
I betch'a the bottom board on your Prisma is running 2x-3x hotter than the other 3 (top and sides).

Just sayin'.

Roger the P=I*E

Have a clamp-on for larger loads (100A+), she's not terribly accurate below 50A.
I'll check out the one at Lowes.

Thanks

  I will do some other clocks freq 190   and freq  260.   I would like to be able to leave this alone and feel pretty safe when I travel then pump it up to an oc when I am home.

  I can keep this piece cool  when I am home so an oc of 250 or 260  with my current setup seems okay.

 When I leave the house I will try to find a dc I feel safe about.

The temps rose from 80 f to 105 f with the garage door shut.
The watts rose from 998 to 1045 with the garage door shut.
Clock at freq 200.  I don't quite feel safe about this.

If freq 190 does the trick for unattended I will be happy.
If freq 260 works while I am in house I will be happy.
More testing to come.

last set of photos shows what I do to keep this very cool at freq 200

I open back door of the garage. let a fan pump in some cool air


 
I made a slide and or platform to bring the unit closer for exhaust of hot air



with 43 f air coming in you can keep your hand on the unit.



side fans help it



and I get power under 1000 watts freq 200 hash 1202gh  so this is   .83 watts per hash at the plug

@PlanetCrypto

I have an electricians clamp meter I got at Lowes that works well.  If you have access to one side of your 240V feed, just measure the amps and multiply

times voltage measured with an ohmmeter.  What I measured for some of my gear was 12A X 248V =2976W.  I measured this right at the circuit breaker.